<SEC-DOCUMENT>0001193125-21-069582-index.html : 20210304
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<ACCEPTANCE-DATETIME>20210304163422
ACCESSION NUMBER:		0001193125-21-069582
CONFORMED SUBMISSION TYPE:	SC TO-T
PUBLIC DOCUMENT COUNT:		10
FILED AS OF DATE:		20210304
DATE AS OF CHANGE:		20210304
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 TO-T
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91578
		FILM NUMBER:		21714629

	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 SHARP & DOHME CORP.
		CENTRAL INDEX KEY:			0000064978
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				221109110
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC TO-T

	BUSINESS ADDRESS:	
		STREET 1:		ONE MERCK DR
		STREET 2:		P O BOX 100
		CITY:			WHITEHOUSE STATION
		STATE:			NJ
		ZIP:			08889-0100
		BUSINESS PHONE:		9084231688

	MAIL ADDRESS:	
		STREET 1:		ONE MERCK DR
		STREET 2:		PO BOX 100 WS3AB-05
		CITY:			WHITEHOUSE STATION
		STATE:			NJ
		ZIP:			08889-0100

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MERCK & CO INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>SC TO-T
<SEQUENCE>1
<FILENAME>d88803dsctot.htm
<DESCRIPTION>SC TO-T
<TEXT>
Document 1 - file: d88803dsctot.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.A.1.A
<SEQUENCE>2
<FILENAME>d88803dex99a1a.htm
<DESCRIPTION>EX-99.A.1.A
<TEXT>
Document 2 - file: d88803dex99a1a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.A.1.B
<SEQUENCE>3
<FILENAME>d88803dex99a1b.htm
<DESCRIPTION>EX-99.A.1.B
<TEXT>
Document 3 - file: d88803dex99a1b.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.A.1.C
<SEQUENCE>4
<FILENAME>d88803dex99a1c.htm
<DESCRIPTION>EX-99.A.1.C
<TEXT>
Document 4 - file: d88803dex99a1c.htm

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<DOCUMENT>
<TYPE>EX-99.A.1.D
<SEQUENCE>5
<FILENAME>d88803dex99a1d.htm
<DESCRIPTION>EX-99.A.1.D
<TEXT>
Document 5 - file: d88803dex99a1d.htm

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<DOCUMENT>
<TYPE>EX-99.A.1.F
<SEQUENCE>6
<FILENAME>d88803dex99a1f.htm
<DESCRIPTION>EX-99.A.1.F
<TEXT>
Document 6 - file: d88803dex99a1f.htm

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<DOCUMENT>
<TYPE>EX-99.A.1.G
<SEQUENCE>7
<FILENAME>d88803dex99a1g.htm
<DESCRIPTION>EX-99.A.1.G
<TEXT>
Document 7 - file: d88803dex99a1g.htm

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g88803g59p74.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g88803g59p74.jpg

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<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g88803g76u52.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g88803g76u52.jpg

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<TYPE>GRAPHIC
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<TEXT>
Document 10 - file: g88803g79m90.jpg

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