Kodiak Sciences Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| Baker Brothers Life Sciences LP | — | Purchase | 2,391,268 | $23.00 | $54,999,164 | Dec 18, 2025 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 1,875 | — | — | Jun 17, 2025 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 5,494 | — | — | Jun 17, 2024 |
| BORGESON JOHN A. | See Remarks | Sale | 1,558 | $2.92 | $4,549 | Jun 11, 2024 |
| EHRLICH JASON | See Remarks | Sale | 2,258 | $9.23 | $20,841 | Jun 14, 2023 |
| BORGESON JOHN A. | See Remarks | Sale | 2,749 | $9.23 | $25,373 | Jun 14, 2023 |
| EHRLICH JASON | See Remarks | Option Exercise | 2,900 | — | — | Jun 11, 2023 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 3,025 | — | — | Jun 11, 2023 |
| PERLROTH VICTOR | Chairman and CEO | Gift | 60,000 | — | — | Dec 30, 2022 |
| EHRLICH JASON | See Remarks | Option Exercise | 5,494 | — | — | Jun 15, 2022 |
| BORGESON JOHN A. | See Remarks | Sale | 1,545 | $7.21 | $11,139 | Jun 15, 2022 |
| EHRLICH JASON | See Remarks | Option Exercise | 2,900 | — | — | Jun 11, 2022 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 3,025 | — | — | Jun 11, 2022 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 20,108 | $7.78 | $156,440 | Jun 3, 2022 |
| BAKER FELIX | — | Purchase | 5,688 | $6.53 | $37,143 | May 25, 2022 |
| Baker Brothers Life Sciences LP | — | Purchase | 912 | $5.97 | $5,445 | May 17, 2022 |
| PERLROTH VICTOR | Chairman and CEO | Sale | 340,000 | $8.99 | $3,056,600 | Feb 24, 2022 |
| Baker Brothers Life Sciences LP | — | Purchase | 5,174 | $53.82 | $278,465 | Feb 16, 2022 |
| BAKER BROS. ADVISORS LP | — | Purchase | 953 | $51.61 | $49,184 | Jan 31, 2022 |
| BAKER FELIX | — | Purchase | 9,350 | $58.76 | $549,406 | Jan 24, 2022 |
| EHRLICH JASON | See Remarks | Sale | 2,416 | $63.55 | $153,537 | Jan 20, 2022 |
| EHRLICH JASON | See Remarks | Option Exercise | 6,950 | $10.29 | $71,516 | Dec 20, 2021 |
| EHRLICH JASON | See Remarks | Sale | 3,701 | $98.63 | $365,030 | Nov 22, 2021 |
| BORGESON JOHN A. | See Remarks | Sale | 204 | $116.29 | $23,723 | Nov 10, 2021 |
| EHRLICH JASON | See Remarks | Sale | 5,698 | $111.56 | $635,669 | Oct 20, 2021 |
| BAKER BROS. ADVISORS LP | — | Option Exercise | 138,815 | $0.01 | $1,388 | Sep 29, 2021 |
| EHRLICH JASON | See Remarks | Sale | 6,098 | $99.74 | $608,215 | Sep 20, 2021 |
| Baker Brothers Life Sciences LP | — | Purchase | 30,285 | $94.38 | $2,858,298 | Sep 15, 2021 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 52,201 | $93.35 | $4,872,963 | Sep 7, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 5,258 | $10.29 | $54,105 | Aug 20, 2021 |
| 667, L.P. | — | Purchase | 2,396 | $87.48 | $209,602 | Aug 18, 2021 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 600 | $85.72 | $51,432 | Aug 11, 2021 |
| EHRLICH JASON | See Remarks | Sale | 2,234 | $85.76 | $191,588 | Jul 20, 2021 |
| Baker Brothers Life Sciences LP | — | Purchase | 10,170 | $90.76 | $923,029 | Jun 30, 2021 |
| EHRLICH JASON | See Remarks | Sale | 845 | $86.07 | $72,729 | Jun 21, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,454 | $80.90 | $117,629 | Jun 15, 2021 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 3,619 | — | — | Jun 15, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,147 | $84.75 | $97,208 | Jun 11, 2021 |
| BORGESON JOHN A. | See Remarks | Sale | 1,037 | $84.75 | $87,886 | Jun 11, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,490 | $81.77 | $121,837 | May 20, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 5,379 | $10.29 | $55,350 | May 12, 2021 |
| EHRLICH JASON | See Remarks | Sale | 3,650 | $111.31 | $406,282 | Apr 20, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,984 | $130.49 | $258,892 | Mar 22, 2021 |
| BORGESON JOHN A. | See Remarks | Sale | 1,255 | $130.82 | $164,179 | Mar 10, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 12,500 | $10.29 | $128,625 | Mar 3, 2021 |
| EHRLICH JASON | See Remarks | Sale | 262 | $122.00 | $31,964 | Feb 22, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 26,950 | $10.29 | $277,316 | Jan 20, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,096 | $147.32 | $161,463 | Dec 21, 2020 |
| EHRLICH JASON | See Remarks | Sale | 2,614 | $139.96 | $365,855 | Nov 20, 2020 |
| Baker Brothers Life Sciences LP | — | Purchase | 1,411,619 | $108.00 | $152,454,852 | Nov 20, 2020 |