X0306 4 2020-09-28 1 0001510487 Principia Biopharma Inc. PRNB 0001435618 Babler Martin C/O PRINCIPIA BIOPHARMA INC. 220 E. GRAND AVENUE SOUTH SAN FRANCISCO CA 94080 1 1 0 0 President, CEO Common Stock 2020-09-28 4 U 0 1023 100.00 D 0 D Common Stock 2020-09-28 4 U 0 39179 100.00 D 0 I See footnote Common Stock 2020-09-28 4 U 0 18355 100.00 D 0 I See footnote Warrant (Right to Buy) 8.9931 2020-09-28 4 D 0 255 D 2022-12-29 Common Stock 255 0 I See footnote Employee Stock Option (right to buy) 1.9076 2020-09-28 4 D 0 50795 D 2022-07-02 Common Stock 50795 0 D Employee Stock Option (right to buy) 2.9977 2020-09-28 4 D 0 85728 D 2023-10-23 Common Stock 85728 0 D Employee Stock Option (right to buy) 3.1794 2020-09-28 4 D 0 110085 D 2024-06-26 Common Stock 110085 0 D Employee Stock Option (right to buy) 4.7236 2020-09-28 4 D 0 83004 D 2024-12-25 Common Stock 83004 0 D Employee Stock Option (right to buy) 4.9961 2020-09-28 4 D 0 60546 D 2025-07-20 Common Stock 60546 0 D Employee Stock Option (right to buy) 7.2671 2020-09-28 4 D 0 115590 D 2027-12-13 Common Stock 115590 0 D Employee Stock Option (right to buy) 11.3549 2020-09-28 4 D 0 187144 D 2028-08-23 Common Stock 187144 0 D Employee Stock Option (right to buy) 35.42 2020-09-28 4 D 0 155000 D 2029-02-28 Common Stock 155000 0 D Employee Stock Option (right to buy) 67.31 2020-09-28 4 D 0 200000 D 2030-03-04 Common Stock 200000 0 D Pursuant to the Agreement and Plan of Merger, dated as of August 16, 2020, by and among Principia Biopharma Inc. (the "Issuer"), Sanofi ("Sanofi") and Kortex Acquisition Corp. ("Purchaser") (the "Merger Agreement"), on September 28, 2020, Purchaser merged with and into the Issuer, with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Sanofi (the "Merger"). At the effective time of the Merger (the "Effective Time"), these shares were canceled in exchange for $100.00 per share in cash, without interest and subject to any applicable withholding taxes. Includes 213 shares acquired under the Employment Stock Purchase Plan on September 25, 2020. Shares indirectly held by Babler Trust Agreement Dated October 25, 2006, of which the Reporting Person is a trustee and may be deemed to share voting and dispositive power over these shares. Shares indirectly held by Martin Babler, as custodian for his minor children under California Uniform Transfer to Minors Act, of which the Reporting Person is a custodian and may be deemed to share voting and dispositive power over these shares. Pursuant to the Merger Agreement, at the Effective Time, each warrant was converted into the right to receive $100.00 less the applicable exercise price per share of such warrant. Pursuant to the Merger Agreement, at the Effective Time, each of the unvested and outstanding options was accelerated and became fully vested, and each of the outstanding options was canceled and converted into the right to receive a cash amount equal to the product of (i) the number of shares that are subject to such options, multiplied by (ii) the excess (if any) of (x) $100.00 over (y) the exercise price payable per share under such options. /s/ Christopher Y. Chai, Attorney-in-Fact for Martin Babler 2020-09-28