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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1692830	Satsuma Pharmaceuticals Inc.	STSA	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1315082	Ra Capital Healthcare Fund Lp	200 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1346824	Ra Capital Management, L.p.	200 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1384859	Peter Kolchinsky	C/O Ra Capital Management, L.p. 200 Berkeley Street, 18Th Floor Boston MA 02116	Yes	No	Yes	No
1619841	M. Rajeev Shah	C/O Ra Capital Management, L.p. 200 Berkeley Street, 18Th Floor Boston MA 02116	Yes	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	Explanation
Common Stock	Acquisiton	2021-02-26	1,232,394	$5.68	5,155,854	No	4	P	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	See footnote

Footnotes

This Form 4 is being filed by RA Capital Management, L.P. ("RA Capital"), Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund, L.P. (the "Fund"). RA Capital, Dr. Kolchinsky, Mr. Shah and the Fund are collectively referred to herein as the "Reporting Persons." On October 25, 2019 RA Capital Management, LLC, a Massachusetts limited liability corporation (the "Predecessor Adviser"), was the general partner of the Fund, and served as investment adviser for the Account. On November 1, 2019, the Predecessor Adviser was replaced as general partner of the Fund by RA Capital Healthcare Fund GP, LLC and was restructured to become RA Capital. The general partner of RA Capital is RA Capital Management GP, LLC, of which Dr. Kolchinsky and Mr. Shah are the controlling persons.
The securities reporting on this Form 4 exclude 758,398 shares held in an account owned by a separately managed account (the "Account") that were reported on the previous Form 4 filed by the Predecessor Adviser. The shares held by the Account have been excluded from the securities reported on this Form 4 pursuant to Rule 16a-1(a)(2)(ii)(C).
RA Capital, RA Capital Management GP, LLC, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of such securities, except to the extent of any pecuniary interest therein.
The Securities reported on this Form 4 are held directly by the Fund.
Mr. Shah is a member of the board of directors of the Issuer.