<SEC-DOCUMENT>0001193125-21-068374-index.html : 20210304
<SEC-HEADER>0001193125-21-068374.hdr.sgml : 20210304
<ACCEPTANCE-DATETIME>20210304060659
ACCESSION NUMBER:		0001193125-21-068374
CONFORMED SUBMISSION TYPE:	SC 13D
PUBLIC DOCUMENT COUNT:		10
FILED AS OF DATE:		20210304
DATE AS OF CHANGE:		20210304
GROUP MEMBERS:		MERCK SHARP & DOHME CORP.
GROUP MEMBERS:		PANAMA MERGER SUB, INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Pandion Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001807901
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				833015614
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91578
		FILM NUMBER:		21712465

	BUSINESS ADDRESS:	
		STREET 1:		134 COOLIDGE AVENUE
		STREET 2:		2ND FLOOR
		CITY:			WATERTOWN
		STATE:			MA
		ZIP:			02472
		BUSINESS PHONE:		617-393-5925

	MAIL ADDRESS:	
		STREET 1:		134 COOLIDGE AVENUE
		STREET 2:		2ND FLOOR
		CITY:			WATERTOWN
		STATE:			MA
		ZIP:			02472

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Pandion Therapeutics Holdco LLC
		DATE OF NAME CHANGE:	20200327

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Merck & Co., Inc.
		CENTRAL INDEX KEY:			0000310158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				221918501
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D

	BUSINESS ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033
		BUSINESS PHONE:		908-740-4000

	MAIL ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Merck & Co. Inc.
		DATE OF NAME CHANGE:	20091103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SCHERING PLOUGH CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>SC 13D
<SEQUENCE>1
<FILENAME>d112314dsc13d.htm
<DESCRIPTION>SC 13D
<TEXT>
Document 1 - file: d112314dsc13d.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>2
<FILENAME>d112314dex992.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 2 - file: d112314dex992.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>3
<FILENAME>d112314dex993.htm
<DESCRIPTION>EX-99.3
<TEXT>
Document 3 - file: d112314dex993.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.4
<SEQUENCE>4
<FILENAME>d112314dex994.htm
<DESCRIPTION>EX-99.4
<TEXT>
Document 4 - file: d112314dex994.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.5
<SEQUENCE>5
<FILENAME>d112314dex995.htm
<DESCRIPTION>EX-99.5
<TEXT>
Document 5 - file: d112314dex995.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.6
<SEQUENCE>6
<FILENAME>d112314dex996.htm
<DESCRIPTION>EX-99.6
<TEXT>
Document 6 - file: d112314dex996.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.7
<SEQUENCE>7
<FILENAME>d112314dex997.htm
<DESCRIPTION>EX-99.7
<TEXT>
Document 7 - file: d112314dex997.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g112314g00q65.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g112314g00q65.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g112314g36v08.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g112314g36v08.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g112314sp1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g112314sp1.jpg

</DOCUMENT>
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