<SEC-DOCUMENT>0001438133-26-000012.txt : 20260219
<SEC-HEADER>0001438133-26-000012.hdr.sgml : 20260219
<ACCEPTANCE-DATETIME>20260219163339
ACCESSION NUMBER:		0001438133-26-000012
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260217
FILED AS OF DATE:		20260219
DATE AS OF CHANGE:		20260219

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hansen Shannon Marie
		CENTRAL INDEX KEY:			0001908267
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36189
		FILM NUMBER:		26654985

	MAIL ADDRESS:	
		STREET 1:		C/O TANDEM DIABETES CARE, INC.
		STREET 2:		11075 ROSELLE STREET
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TANDEM DIABETES CARE INC
		CENTRAL INDEX KEY:			0001438133
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				204327508
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12400 HIGH BLUFF DRIVE
		CITY:			San Diego
		STATE:			CA
		ZIP:			92130
		BUSINESS PHONE:		858-366-6900

	MAIL ADDRESS:	
		STREET 1:		12400 HIGH BLUFF DRIVE
		CITY:			San Diego
		STATE:			CA
		ZIP:			92130
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">Shares withheld by Tandem Diabetes Care Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.</footnote>
        <footnote id="F2">The securities are held by the Shannon M. Hansen Trust dated July 8, 2003, of which Shannon M. Hansen is the Trustee.</footnote>
        <footnote id="F3">Awarded on February 15, 2022 pursuant to the Tandem Diabetes Care Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).</footnote>
        <footnote id="F4">Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.</footnote>
        <footnote id="F5">RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 2/15/2023, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.</footnote>
        <footnote id="F6">Awarded on May 25, 2023 pursuant to the Tandem Diabetes Care Inc. 2023 Long-Term Incentive Plan (the 2023 Plan).</footnote>
        <footnote id="F7">Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan.</footnote>
        <footnote id="F8">RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.</footnote>
        <footnote id="F9">Awarded on May 23, 2024 pursuant to the 2023 Plan.</footnote>
        <footnote id="F10">RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2025, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.</footnote>
    </footnotes>

    <remarks></remarks>

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        <signatureName>/s/ Shannon M. Hansen</signatureName>
        <signatureDate>2026-02-19</signatureDate>
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