<SEC-DOCUMENT>0000866291-21-000010.txt : 20210309
<SEC-HEADER>0000866291-21-000010.hdr.sgml : 20210309
<ACCEPTANCE-DATETIME>20210309161347
ACCESSION NUMBER:		0000866291-21-000010
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20210303
ITEM INFORMATION:		Material Impairments
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210309
DATE AS OF CHANGE:		20210309

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLEGRO MICROSYSTEMS, INC.
		CENTRAL INDEX KEY:			0000866291
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				462405937
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39675
		FILM NUMBER:		21725918

	BUSINESS ADDRESS:	
		STREET 1:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103
		BUSINESS PHONE:		(603) 626-2300

	MAIL ADDRESS:	
		STREET 1:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEGRO MICROSYSTEMS INC
		DATE OF NAME CHANGE:	19900730
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>algm-20210303.htm
<DESCRIPTION>8-K
<TEXT>
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<title>algm-20210303</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl80L2ZyYWc6MDdhMzgzM2ZkZTFlNDQxZjg1YTYwYjE1ZGZkNjFhYWUvdGFibGU6MjQzMmJjZDEyYTI3NGVjMDg3OWVhZTA4ODRkZTIyZTcvdGFibGVyYW5nZToyNDMyYmNkMTJhMjc0ZWMwODc5ZWFlMDg4NGRlMjJlN18wLTEtMS0xLTA_7c326339-d3a0-4ada-9640-2aff4f3b943c">0000866291</ix:nonNumeric><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt:booleanfalse" name="dei:AmendmentFlag" 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style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:115%">UNITED STATES</span></div><div style="text-align:center;text-indent:2.7pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:115%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:115%">Washington, D.C. 20549</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">_________________</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:115%">FORM <ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjU1_38751ea4-18ca-4c91-bee3-2b90b60ed204">8-K</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:115%">CURRENT REPORT</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">_________________</span></div><div style="text-align:center;text-indent:2.7pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:115%">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</span></div><div style="margin-top:4pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:110%">Commission File Number: <ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjU2_4c627811-fd29-4480-a0b5-aee1d97bd8f6">001-39675</ix:nonNumeric></span></div><div 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style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:110%">(Exact Name of Registrant as Specified in its Charter)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">_________________</span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:74.679%"><tr><td style="width:1.0%"></td><td style="width:27.440%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:27.440%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:41.820%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="6" style="padding:2px 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style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(I.R.S. Employer<br/>Identification No.)</span></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF80LTAtMS0xLTA_d9e8ed9c-e494-42ab-a1d6-4f6fa555b5d2">955 Perimeter Road</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span 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id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF81LTAtMS0xLTA_aed81191-8f97-4f45-92e4-71927c24beea">Manchester,</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF81LTEtMS0xLTA_2476d60d-09e2-4aea-ba6c-6c54b6f608fe">New Hampshire</ix:nonNumeric> </span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Zip Code)</span></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Address of principal executive offices)</span></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY180MDM_7b426099-be2c-452e-99e4-c6ad888dfccf">(603)</ix:nonNumeric>&#160;<ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjU4_366cc6d2-a732-4f7d-8aa4-19e762982729">626-2300</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:110%">(Registrant&#8217;s telephone number, including area code)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:115%">N/A</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:110%">   </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:110%">(Former Name or Former Address, if Changed Since Last Report)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">_________________</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></div><div><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.519%"><tr><td style="width:0.1%"></td><td style="width:0.927%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.120%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.283%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.927%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.120%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.122%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.858%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:77.482%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.861%"></td><td style="width:0.1%"></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:boolballotbox" name="dei:WrittenCommunications" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N18xLTAtMS0xLTA_7b7e48a9-b0f1-4dfb-8852-f0a5e73f331c">&#9744;</ix:nonNumeric></span></div></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:boolballotbox" name="dei:SolicitingMaterial" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N18zLTAtMS0xLTA_0194ea38-6968-44ca-b1f2-a86c776c4891">&#9744;</ix:nonNumeric></span></div></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:boolballotbox" name="dei:PreCommencementTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N181LTAtMS0xLTA_5616cbac-97c2-4933-8741-8cb960997c40">&#9744;</ix:nonNumeric></span></div></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></div></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:boolballotbox" name="dei:PreCommencementIssuerTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N183LTAtMS0xLTA_e0b75438-fe0c-44e1-be42-240e1fae27b5">&#9744;</ix:nonNumeric></span></div></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></div></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.839%"><tr><td style="width:1.0%"></td><td style="width:10.456%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.456%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.456%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.368%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.680%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.368%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.591%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.928%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.597%"></td><td style="width:0.1%"></td></tr><tr><td colspan="15" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Securities registered pursuant to Section 12(b) of the Act:</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="9" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center;text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Title of each class</span></div></td><td colspan="9" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center;text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Trading Symbol</span></div></td><td colspan="9" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center;text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Name of each exchange on which registered</span></div></td></tr><tr><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center;text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:Security12bTitle" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6OWU1MTA1NWU1MjlmNDExYzk1MWVlYzBjNDQyOTNhNGIvdGFibGVyYW5nZTo5ZTUxMDU1ZTUyOWY0MTFjOTUxZWVjMGM0NDI5M2E0Yl8yLTAtMS0xLTA_0574aa35-9070-42f8-ab6e-aa1c360ca89b">Common Stock, par value $0.01 per share</ix:nonNumeric></span></div></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.9pt;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" name="dei:TradingSymbol" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6OWU1MTA1NWU1MjlmNDExYzk1MWVlYzBjNDQyOTNhNGIvdGFibGVyYW5nZTo5ZTUxMDU1ZTUyOWY0MTFjOTUxZWVjMGM0NDI5M2E0Yl8yLTMtMS0xLTA_669fed39-9d0c-40c2-b5b7-28b82e79a9ff">ALGM</ix:nonNumeric></span></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center;text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6OWU1MTA1NWU1MjlmNDExYzk1MWVlYzBjNDQyOTNhNGIvdGFibGVyYW5nZTo5ZTUxMDU1ZTUyOWY0MTFjOTUxZWVjMGM0NDI5M2E0Yl8yLTYtMS0xLTA_91c95987-fb95-4939-8ecb-a5fb5f0afe42">The Nasdaq Global Select Market</ix:nonNumeric></span></div></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Emerging growth company <ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjU5_ddaf10bf-9c9a-4656-8f50-d9dbf1de9f0b">&#9746;</ix:nonNumeric></span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:115%"><ix:nonNumeric contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119" format="ixt-sec:boolballotbox" name="dei:EntityExTransitionPeriod" id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjYw_5d010e69-59c5-4c95-b8e2-0566359a180d">&#9744;</ix:nonNumeric></span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td></tr></table></div><div style="height:58.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="id4f513b2597b4dad8d552ffaecb382f2_7"></div><hr style="page-break-after:always"/><div style="min-height:72pt;width:100%"><div><span><br/></span></div></div><div><span><br/></span></div><div style="-sec-extract:summary"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Item 2.06. Material Impairments</span></div><div style="text-align:justify;text-indent:21.6pt"><span><br/></span></div><div style="text-indent:21.6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">On March 3, 2021, Allegro MicroSystems, Inc. (the &#8220;Company&#8221;) entered into a definitive agreement to sell its manufacturing facility in Thailand (&#8220;AMTC&#8221;) for approximately $30.0 million before fees and expenses.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">As a result of the execution of the definitive agreement, the Company will reclassify the AMTC assets within its &#8220;Property, plant and equipment, net&#8221; to &#8220;Assets held for sale&#8221; and will incur an impairment charge to the book value of those assets in the range of $7.0 million to $9.0 million in its fiscal quarter ending March 26, 2021. Included in this impairment charge is $3.0 million to $3.5 million in one-time fees and expenses to be paid from transaction proceeds at the closing of the sale of AMTC.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Item 9.01. Financial Statements and Exhibits</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">(d) Exhibits</span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:24.380%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.921%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:72.299%"></td><td style="width:0.1%"></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Exhibit No.</span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Description</span></div></td></tr><tr><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:0.9pt;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Exhibit 104</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Inline XBRL for the cover page of this Current Report on Form 8-K.</span></div></td></tr><tr style="height:15pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"><div style="text-indent:0.9pt"><span><br/></span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt;text-indent:0.9pt"></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td></tr><tr style="height:15pt"><td colspan="9" style="padding:0 1pt"></td></tr></table></div><div id="id4f513b2597b4dad8d552ffaecb382f2_10"></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">SIGNATURES</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Current Report on Form 8-K to be signed on its behalf by the undersigned thereunto duly authorized.</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.358%"><tr><td style="width:1.0%"></td><td style="width:9.061%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:5.674%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:5.674%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:5.674%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.122%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.541%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.122%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.090%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.448%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.090%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.090%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.703%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.090%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.287%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:46.641%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.293%"></td><td style="width:0.1%"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="27" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">ALLEGRO MICROSYSTEMS, INC.</span></div></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="18" style="padding:0 1pt"></td><td colspan="18" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:right;text-indent:0.9pt;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">Date:</span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right;text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">March 9, 2021</span></div></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:115%">By:</span></div></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">/s/ Paul V. Walsh, Jr.</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Paul V. Walsh, Jr.</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:0.9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Senior Vice President, Chief Financial Officer and Treasurer</span></div></td></tr></table></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>algm-20210303.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

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      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="algm-20210303_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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</xs:schema>
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>3
<FILENAME>algm-20210303_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

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<!--r:8f5b7020-ccd1-4e3f-a1ec-eb0284faa392,g:b24c5e42-0bf5-44fa-9193-e9b6a773727c-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
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  <link:calculationLink xlink:role="http://www.allegromicro.com/role/Cover" xlink:type="extended"/>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>4
<FILENAME>algm-20210303_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

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<!--r:8f5b7020-ccd1-4e3f-a1ec-eb0284faa392,g:b24c5e42-0bf5-44fa-9193-e9b6a773727c-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
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  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>5
<FILENAME>algm-20210303_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

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<!--r:8f5b7020-ccd1-4e3f-a1ec-eb0284faa392,g:b24c5e42-0bf5-44fa-9193-e9b6a773727c-->
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    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
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    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications" xlink:to="lab_dei_WrittenCommunications" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_dbcf6e25-0adb-4542-83a7-086810e5c6be_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_84e87748-96be-475a-94ef-3887d3c842c8_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_6b9788eb-a8b4-4ac7-b78c-1c61b2481704_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial" xlink:to="lab_dei_SolicitingMaterial" xlink:type="arc" order="1"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_7a8857eb-677c-464e-b366-edaede3c1d56_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover [Abstract]</link:label>
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    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_a0aecef7-8d19-45df-a62f-33fdf7ced50d_terseLabel_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer" xlink:to="lab_dei_PreCommencementIssuerTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementTenderOffer_d48a01d2-7066-43cd-95aa-955738826212_terseLabel_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer" xlink:to="lab_dei_PreCommencementTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_993f0757-23a8-4a5e-9631-05588aea70b8_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_dc4f355b-3236-4aa4-9e28-7454f7237225_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>6
<FILENAME>algm-20210303_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
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      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF80LTAtMS0xLTA_d9e8ed9c-e494-42ab-a1d6-4f6fa555b5d2">955 Perimeter Road</dei:EntityAddressAddressLine1>
    <dei:EntityAddressPostalZipCode
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF80LTItMS0xLTA_187c9e97-8592-4989-925d-4171a38a8ed7">03103</dei:EntityAddressPostalZipCode>
    <dei:EntityAddressCityOrTown
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF81LTAtMS0xLTA_aed81191-8f97-4f45-92e4-71927c24beea">Manchester,</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6N2JmMjExZTQyZDE4NGU5MmJjNDUzNWI3NThlZmI5ODAvdGFibGVyYW5nZTo3YmYyMTFlNDJkMTg0ZTkyYmM0NTM1Yjc1OGVmYjk4MF81LTEtMS0xLTA_2476d60d-09e2-4aea-ba6c-6c54b6f608fe">NH</dei:EntityAddressStateOrProvince>
    <dei:CityAreaCode
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY180MDM_7b426099-be2c-452e-99e4-c6ad888dfccf">(603)</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjU4_366cc6d2-a732-4f7d-8aa4-19e762982729">626-2300</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N18xLTAtMS0xLTA_7b7e48a9-b0f1-4dfb-8852-f0a5e73f331c">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N18zLTAtMS0xLTA_0194ea38-6968-44ca-b1f2-a86c776c4891">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N181LTAtMS0xLTA_5616cbac-97c2-4933-8741-8cb960997c40">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6ODEyZGNiNjFkZTczNGY5YjgyMTI4YjQwMWQxYzQ5NTcvdGFibGVyYW5nZTo4MTJkY2I2MWRlNzM0ZjliODIxMjhiNDAxZDFjNDk1N183LTAtMS0xLTA_e0b75438-fe0c-44e1-be42-240e1fae27b5">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6OWU1MTA1NWU1MjlmNDExYzk1MWVlYzBjNDQyOTNhNGIvdGFibGVyYW5nZTo5ZTUxMDU1ZTUyOWY0MTFjOTUxZWVjMGM0NDI5M2E0Yl8yLTAtMS0xLTA_0574aa35-9070-42f8-ab6e-aa1c360ca89b">Common Stock, par value $0.01 per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6OWU1MTA1NWU1MjlmNDExYzk1MWVlYzBjNDQyOTNhNGIvdGFibGVyYW5nZTo5ZTUxMDU1ZTUyOWY0MTFjOTUxZWVjMGM0NDI5M2E0Yl8yLTMtMS0xLTA_669fed39-9d0c-40c2-b5b7-28b82e79a9ff">ALGM</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGFibGU6OWU1MTA1NWU1MjlmNDExYzk1MWVlYzBjNDQyOTNhNGIvdGFibGVyYW5nZTo5ZTUxMDU1ZTUyOWY0MTFjOTUxZWVjMGM0NDI5M2E0Yl8yLTYtMS0xLTA_91c95987-fb95-4939-8ecb-a5fb5f0afe42">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="i83be0361741943ff97292bed3f8351b6_D20201119-20201119"
      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjU5_ddaf10bf-9c9a-4656-8f50-d9dbf1de9f0b">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod
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      id="id3VybDovL2RvY3MudjEvZG9jOmQ0ZjUxM2IyNTk3YjRkYWQ4ZDU1MmZmYWVjYjM4MmYyL3NlYzpkNGY1MTNiMjU5N2I0ZGFkOGQ1NTJmZmFlY2IzODJmMl8xL2ZyYWc6MmExMjhlYThhMTAwNGYxOTkzYjc1ODhmYjZkNjIyMGMvdGV4dHJlZ2lvbjoyYTEyOGVhOGExMDA0ZjE5OTNiNzU4OGZiNmQ2MjIwY18xMjYw_5d010e69-59c5-4c95-b8e2-0566359a180d">false</dei:EntityExTransitionPeriod>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
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</head>
<body>
<span style="display: none;">v3.20.4</span><table class="report" border="0" cellspacing="2" id="idm140383613255464">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover<br></strong></div></th>
<th class="th"><div>Nov. 19, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-39675<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Mar.  03,  2021<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">ALLEGRO MICROSYSTEMS, INC.<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity File Number</a></td>
<td class="text">46-2405937<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">955 Perimeter Road<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Manchester,<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">NH<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">03103<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(603)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">626-2300<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, par value $0.01 per share<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">ALGM<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">true<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityExTransitionPeriod', window );">Entity Ex Transition Period</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000866291<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityExTransitionPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 7A<br> -Section B<br> -Subsection 2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityExTransitionPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td>xbrli:booleanItemType</td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td>dei:securityTitleItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
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<td><strong> Balance Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td>dei_</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
