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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1510487	Principia Biopharma Inc.	PRNB	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1253170	Srinivas Akkaraju	628 Middlefield Road Palo Alto CA 94301		Yes	No	No	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	2018-09-18	208,480	$0.00	208,480	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-09-18	175,000	$17.00	383,480	No	4	P	Indirect	See footnote

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series C Preferred Stock	Disposition	2018-09-18	208,480	$0.00	208,480	$0.00

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

Footnotes

Each share of Series C Preferred Stock automatically converted into the Issuer's Common Stock on a 1-for-1 basis, for no additional consideration, upon the closing of the Issuer's initial public offering. The Series C Preferred Stock had no expiration date.
Shares are held by Samsara BioCapital, L.P. ("Samsara BioCapital"). The reporting person is a managing member of Samsara BioCapital GP, LLC, the general partner of Samsara BioCapital. The Reporting Person disclaims beneficial ownership of these shares except to the extent of the Reporting Person's pecuniary interest therein.