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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1622229	Unum Therapeutics Inc.	UMRX	Pharmaceutical Preparations (2834)	465308248

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1671207	Atlas Venture Associates Ix, Llc	25 First Street, Suite 303 Cambridge MA 02141	No	No	Yes	No
1671208	Atlas Venture Associates Ix, L.p.	25 First Street, Suite 303 Cambridge MA 02141	No	No	Yes	No
1671219	Atlas Venture Fund Ix, L.p.	25 First Street, Suite 303 Cambridge MA 02141	No	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2018-04-03	3,184,446	$0.00	3,184,446	No	4	C	Direct
Common Stock	Acquisiton	2018-04-03	83,037	$0.00	3,267,483	No	4	C	Direct
Common Stock	Acquisiton	2018-04-03	94,052	$12.00	3,361,535	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	C	Direct
No	4	C	Direct
No	4	P	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series A Preferred Stock	Disposition	2018-04-03	3,184,446	$0.00	3,184,446	$0.00
Common Stock	Series B Preferred Stock	Disposition	2018-04-03	83,037	$0.00	83,037	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	C	Direct
0			No	4	C	Direct

Footnotes

Each share automatically converted into Common Stock, for no additional consideration, on a 1.5701314513884-for-1 basis at the closing of the Issuer's initial public offering. The shares had no expiration date.
The shares are held directly by Atlas Venture Fund IX, L.P. ("Atlas Venture Fund IX"). The general partner of Atlas Venture Fund IX is Atlas Venture Associates IX, L.P. ("AVA IX LP"). Atlas Venture Associates IX, LLC ("AVA IX LLC") is the general partner of AVA IX LP. Each of AVA IX LP and AVA IX LLC disclaim Section 16 beneficial ownership of the securities held by Atlas Venture Fund IX, except to the extent of its pecuniary interest therein, if any.