KOD · Insider Trading
Kodiak Sciences Inc Common Stock
Every open-market purchase and sale reported by KOD officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-30 | Baker Bros. Advisors (GP) LLC | Director | Buy | +4,293,552 | +$380.39M |
| 2026-09-30 | Felix Baker | Director | Buy | +4,847,040 | +$351.75M |
| 2026-09-30 | Julian Baker | Director | Buy | +2,509,938 | +$209.78M |
| 2026-09-29 | Victor Perlroth | Chairman and CEO | M | +1,280,524 | +$5.38M |
| 2026-07-17 | John A. Borgeson | Chief Financial Officer | A | +66,500 deriv. | — |
| 2026-07-17 | Victor Perlroth | Chairman and CEO | A | +100,000 deriv. | — |
| 2026-07-02 | Richard S Levy | Director | A | +17,731 deriv. | — |
| 2026-07-02 | Taiyin Yang | Director | A | +17,731 deriv. | — |
| 2026-07-02 | Bassil I Dahiyat | Director | A | +17,731 deriv. | — |
| 2026-07-02 | Charles A Bancroft | Director | A | +17,731 deriv. | — |
| 2026-07-02 | Robert Profusek | Director | A | +17,731 deriv. | — |
| 2026-07-02 | BAKER BROS. ADVISORS LP | Director | A | +212,772 deriv. | — |
| 2026-06-05 | John A. Borgeson | Chief Financial Officer | MIXED | — | −$991.81K |
| 2026-04-16 | John A. Borgeson | Chief Financial Officer | M | +28,614 | +$29.76K |
| 2026-04-02 | John A. Borgeson | Chief Financial Officer | MIXED | — | −$1.17M |
| 2026-03-27 | Victor Perlroth | Chairman and CEO | M | +300,000 | +$312.00K |
| 2026-03-19 | Victor Perlroth | Chairman and CEO | A | +175,000 deriv. | — |
| 2025-12-19 | 667, L.P. | Director | Buy | +15,652,176 | +$360.00M |
| 2025-07-08 | Victor Perlroth | Chairman and CEO | A | +340,000 deriv. | — |
| 2025-07-08 | John A. Borgeson | See Remarks | A | +250,000 deriv. | — |
| 2025-07-02 | Bassil I Dahiyat | Director | A | +40,000 deriv. | — |
| 2025-07-02 | Robert Profusek | Director | A | +40,000 deriv. | — |
| 2025-07-02 | Charles A Bancroft | Director | A | +40,000 deriv. | — |
| 2025-07-02 | Richard S Levy | Director | A | +40,000 deriv. | — |
| 2025-07-02 | Taiyin Yang | Director | A | +40,000 deriv. | — |
| 2025-07-02 | Baker Bros. Advisors (GP) LLC | Director | A | +480,000 deriv. | — |
| 2025-06-17 | John A. Borgeson | See Remarks | MIXED | +1,152 | −$2.64K |
| 2024-08-07 | John A. Borgeson | See Remarks | A | +334,500 deriv. | — |
| 2024-08-07 | Victor Perlroth | Chairman and CEO | A | +406,000 deriv. | — |
| 2024-07-02 | BAKER BROS. ADVISORS LP | Director | A | +480,000 deriv. | — |
| 2024-07-01 | Taiyin Yang | Director | A | +40,000 deriv. | — |
| 2024-07-01 | Robert Profusek | Director | A | +40,000 deriv. | — |
| 2024-07-01 | Richard S Levy | Director | A | +40,000 deriv. | — |
| 2024-07-01 | Charles A Bancroft | Director | A | +40,000 deriv. | — |
| 2024-07-01 | Bassil I Dahiyat | Director | A | +40,000 deriv. | — |
| 2024-06-18 | John A. Borgeson | See Remarks | MIXED | +2,620 | −$7.90K |
| 2024-06-13 | John A. Borgeson | See Remarks | MIXED | +1,467 | −$4.55K |
| 2023-07-05 | 667, L.P. | Director | A | +480,000 deriv. | — |
| 2023-07-03 | Richard S Levy | Director | A | +40,000 deriv. | — |
| 2023-07-03 | Charles A Bancroft | Director | A | +40,000 deriv. | — |
| 2023-07-03 | Taiyin Yang | Director | A | +40,000 deriv. | — |
| 2023-07-03 | Robert Profusek | Director | A | +40,000 deriv. | — |
| 2023-07-03 | Bassil I Dahiyat | Director | A | +40,000 deriv. | — |
| 2023-06-27 | John A. Borgeson | See Remarks | A | +207,500 deriv. | — |
| 2023-06-27 | Victor Perlroth | Chairman and CEO | A | +335,000 deriv. | — |
| 2023-06-27 | Jason Ehrlich | See Remarks | A | +207,500 deriv. | — |
| 2023-06-16 | John A. Borgeson | See Remarks | MIXED | +1,297 | −$39.01K |
| 2023-06-16 | Jason Ehrlich | See Remarks | MIXED | +2,104 | −$31.50K |
| 2023-06-13 | Jason Ehrlich | See Remarks | M | +2,900 | — |
| 2023-06-13 | John A. Borgeson | See Remarks | M | +3,025 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Baker Bros. Advisors (GP) LLC | Director | 19,962,778 | $1.71B |
| Felix Baker | Director | 18,852,329 | $1.62B |
| 667, L.P. | Director | 18,358,772 | $1.57B |
| BAKER BROS. ADVISORS LP | Director | 15,316,021 | $1.31B |
| Victor Perlroth | Chairman and CEO | 3,051,718 | $261.68M |
| Julian Baker | Director | 1,611,909 | $138.22M |
| John A. Borgeson | Chief Financial Officer | 211,930 | $18.17M |
| Robert Profusek | Director | 10,000 | $857.50K |
| Richard S Levy | Director | 250 | $21.44K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the KOD quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.