As of August 04, 2026, the three largest insider holders of KZR 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).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Franklin M Berger | - | 890,691 | 0 | 22 Mar, 2022 |
| Michael Kauffman | - | 63,690 | 0 | 05 Jan, 2022 |
| Venture Investments Ltd Morningside | - | 1,947,993 | 0 | 17 Aug, 2023 |
| Christopher J. Kirk | President And Cso | 431,348 | 0 | 24 Jul, 2023 |
| John Franklin Fowler | Ceo | 393,904 | 0 | 14 Nov, 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.
| 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 | Mark C. Schiller | Common Stock | D | 561 | $4.28 | 2,739 | D | S |
| 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 |
| 01 Jul, 2025 | Zung Phuong To | Employee Stock Option (right to buy) | A | 7,000 | $0.00 | 7,000 | D | A |
| 01 Jul, 2025 | Zung Phuong To | Employee Stock Option (right to buy) | A | 7,000 | $0.00 | 7,000 | 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 | Graham K Cooper | Stock Option (right to buy) | A | 5,000 | $0.00 | 5,000 | D | A |
| 18 Jun, 2025 | Courtney Wallace | Stock Option (right to buy) | A | 5,000 | $0.00 | 5,000 | D | A |
| 18 Jun, 2025 | Micki Klearman | Stock Option (right to buy) | A | 5,000 | $0.00 | 5,000 | D | A |
| 18 Jun, 2025 | Courtney Wallace | Stock Option (right to buy) | A | 5,000 | $0.00 | 5,000 | D | A |
| 18 Jun, 2025 | Micki Klearman | 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 | Courtney Wallace | 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 | 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 | Mark C. Schiller | Employee Stock Option (right to buy) | A | 4,800 | $0.00 | 12,000 | D | A |