Kezar Life Sciences, Inc. (KZR) Insider Ownership

Historic Insider Ownership Trends

As of April 17, 2026, Kezar Life Sciences's top three insider holders are Venture Investments Ltd Morningside (TenPercentOwner, 1.95Mn shares), Franklin M Berger (Director, 890.69K shares), Christopher J. Kirk (President And Cso, 431.35K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Venture Investments Ltd Morningside - 1,947,993 0 17 Aug, 2023
Franklin M Berger - 890,691 0 22 Mar, 2022
Christopher J. Kirk President And Cso 431,348 0 24 Jul, 2023
John Franklin Fowler Ceo 393,904 0 14 Nov, 2022
Michael Kauffman - 63,690 0 05 Jan, 2022
Mark C. Schiller Chief Operating Officer 2,739 0 03 Jul, 2025
Pichi Luo Chiang Svp, Corporate Controller 2,711 0 03 Jul, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
02 Jul, 2025 Mark C. Schiller Common Stock D 561 $4.28 2,739 D S
02 Jul, 2025 Pichi Luo Chiang Common Stock D 264 $4.28 2,711 D S
01 Jul, 2025 Zung Phuong To Employee Stock Option (right to buy) A 7,000 $0.00 7,000 D A
18 Jun, 2025 Courtney Wallace Stock Option (right to buy) A 5,000 $0.00 5,000 D A
18 Jun, 2025 Graham K Cooper Stock Option (right to buy) A 5,000 $0.00 5,000 D A
18 Jun, 2025 Elizabeth Garner Stock Option (right to buy) A 5,000 $0.00 5,000 D A
18 Jun, 2025 Micki Klearman Stock Option (right to buy) A 5,000 $0.00 5,000 D A
18 Jun, 2025 Franklin M Berger Stock Option (right to buy) A 5,000 $0.00 5,000 D A
18 Jun, 2025 Michael Kauffman Stock Option (right to buy) A 5,000 $0.00 5,000 D A
18 Jun, 2025 John Franklin Fowler Stock Option (right to buy) A 5,000 $0.00 5,000 D A
27 Mar, 2025 Mark C. Schiller Employee Stock Option (right to buy) A 4,800 $0.00 12,000 D A
27 Mar, 2025 Marc Belsky Employee Stock Option (right to buy) A 4,800 $0.00 12,000 D A
04 Mar, 2025 Mark C. Schiller Employee Stock Option (right to buy) A 7,200 $0.00 7,200 D A
04 Mar, 2025 Marc Belsky Employee Stock Option (right to buy) A 7,200 $0.00 7,200 D A
14 Feb, 2025 John Franklin Fowler Stock Option (right to buy) A 5,000 $0.00 5,000 D A
09 Jan, 2025 Christopher J. Kirk Employee Stock Option (right to buy) A 120,000 $0.00 120,000 D A
09 Jan, 2025 Mark C. Schiller Employee Stock Option (right to buy) A 24,500 $0.00 24,500 D A
09 Jan, 2025 Marc Belsky Employee Stock Option (right to buy) A 24,500 $0.00 24,500 D A
02 Jul, 2024 Mark C. Schiller Common Stock D 6,688 $0.58 33,007 D S
20 Jun, 2024 Graham K Cooper Stock Option (right to buy) A 50,000 $0.00 50,000 D A