Based on data from the past 90 days ending January 10, 2026, Kodiak Sciences's three largest insider shareholders are Director Bros. Advisors Lp Baker (18.36Mn shares), Chairman And Ceo Victor Perlroth (2.17Mn shares), Officer John A. Borgeson (183.32K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Bros. Advisors Lp Baker | 18,358,772 | 19 Dec, 2025 | |
| Victor Perlroth | Chairman And Ceo | 2,168,038 | 28 Feb, 2022 |
| John A. Borgeson | Nan | 183,316 | 17 Jun, 2025 |
| Jason Ehrlich | Nan | 61,924 | 16 Jun, 2023 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Dec, 2025 | Bros. Advisors Lp Baker | Common Stock | A | 2,391,268 | $23.00 | 18,358,772 | I | P |
| 18 Dec, 2025 | Bros. Advisors Lp Baker | Common Stock | A | 217,428 | $23.00 | 1,560,414 | I | P |
| 17 Jun, 2025 | John A. Borgeson | - | - | 183,316 | D | |||
| 17 Jun, 2025 | John A. Borgeson | Common Stock | D | 723 | $3.65 | 183,316 | D | S |
| 15 Jun, 2025 | John A. Borgeson | Common Stock | A | 1,875 | - | 184,039 | D | M |
| 15 Jun, 2025 | John A. Borgeson | - | - | 184,039 | D | |||
| 17 Jun, 2024 | John A. Borgeson | Common Stock | D | 2,874 | $2.75 | 182,164 | D | S |
| 15 Jun, 2024 | John A. Borgeson | Common Stock | A | 5,494 | - | 185,038 | D | M |
| 12 Jun, 2024 | John A. Borgeson | Common Stock | D | 1,558 | $2.92 | 179,544 | D | S |
| 11 Jun, 2024 | John A. Borgeson | Common Stock | A | 3,025 | - | 181,102 | D | M |
| 16 Jun, 2023 | John A. Borgeson | Common Stock | D | 2,749 | $9.23 | 178,077 | D | S |
| 16 Jun, 2023 | Jason Ehrlich | Common Stock | D | 2,258 | $9.23 | 61,924 | D | S |
| 16 Jun, 2023 | Jason Ehrlich | - | - | 61,924 | D | |||
| 15 Jun, 2023 | John A. Borgeson | Common Stock | A | 5,494 | - | 180,826 | D | M |
| 15 Jun, 2023 | Jason Ehrlich | - | - | 64,182 | D | |||
| 15 Jun, 2023 | Jason Ehrlich | Common Stock | A | 5,494 | - | 64,182 | D | M |
| 14 Jun, 2023 | John A. Borgeson | Common Stock | D | 1,448 | $9.42 | 175,332 | D | S |
| 14 Jun, 2023 | Jason Ehrlich | Common Stock | D | 1,132 | $9.42 | 58,688 | D | S |
| 11 Jun, 2023 | John A. Borgeson | Common Stock | A | 3,025 | - | 176,780 | D | M |
| 11 Jun, 2023 | Jason Ehrlich | Common Stock | A | 2,900 | - | 59,820 | D | M |