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 | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Baker Brothers Life Sciences LP | — | Purchase | 2,391,268 | $23.00 | $54,999,164 | 18,358,772 | Dec 18, 2025 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 1,875 | — | — | 184,039 | Jun 17, 2025 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 5,494 | — | — | 185,038 | Jun 17, 2024 |
| BORGESON JOHN A. | See Remarks | Sale | 1,558 | $2.92 | $4,549 | 179,544 | Jun 11, 2024 |
| EHRLICH JASON | See Remarks | Sale | 2,258 | $9.23 | $20,841 | 61,924 | Jun 14, 2023 |
| BORGESON JOHN A. | See Remarks | Sale | 2,749 | $9.23 | $25,373 | 178,077 | Jun 14, 2023 |
| EHRLICH JASON | See Remarks | Option Exercise | 2,900 | — | — | 59,820 | Jun 11, 2023 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 3,025 | — | — | 176,780 | Jun 11, 2023 |
| PERLROTH VICTOR | Chairman and CEO | Gift | 60,000 | — | — | 3,448,038 | Dec 30, 2022 |
| EHRLICH JASON | See Remarks | Option Exercise | 5,494 | — | — | 60,407 | Jun 15, 2022 |
| BORGESON JOHN A. | See Remarks | Sale | 1,545 | $7.21 | $11,139 | 176,553 | Jun 15, 2022 |
| EHRLICH JASON | See Remarks | Option Exercise | 2,900 | — | — | 54,913 | Jun 11, 2022 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 3,025 | — | — | 172,604 | Jun 11, 2022 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 20,108 | $7.78 | $156,440 | 1,342,986 | Jun 3, 2022 |
| BAKER FELIX | — | Purchase | 5,688 | $6.53 | $37,143 | 1,251,349 | May 25, 2022 |
| Baker Brothers Life Sciences LP | — | Purchase | 912 | $5.97 | $5,445 | 1,245,661 | May 17, 2022 |
| PERLROTH VICTOR | Chairman and CEO | Sale | 340,000 | $8.99 | $3,056,600 | 2,168,038 | Feb 24, 2022 |
| Baker Brothers Life Sciences LP | — | Purchase | 5,174 | $53.82 | $278,465 | 14,462,968 | Feb 16, 2022 |
| BAKER BROS. ADVISORS LP | — | Purchase | 953 | $51.61 | $49,184 | 1,163,261 | Jan 31, 2022 |
| BAKER FELIX | — | Purchase | 9,350 | $58.76 | $549,406 | 13,964,790 | Jan 24, 2022 |
| EHRLICH JASON | See Remarks | Sale | 2,416 | $63.55 | $153,537 | 55,267 | Jan 20, 2022 |
| EHRLICH JASON | See Remarks | Option Exercise | 6,950 | $10.29 | $71,516 | 58,491 | Dec 20, 2021 |
| EHRLICH JASON | See Remarks | Sale | 3,701 | $98.63 | $365,030 | 54,599 | Nov 22, 2021 |
| BORGESON JOHN A. | See Remarks | Sale | 204 | $116.29 | $23,723 | 169,443 | Nov 10, 2021 |
| EHRLICH JASON | See Remarks | Sale | 5,698 | $111.56 | $635,669 | 52,793 | Oct 20, 2021 |
| BAKER BROS. ADVISORS LP | — | Option Exercise | 138,815 | $0.01 | $1,388 | 13,439,808 | Sep 29, 2021 |
| EHRLICH JASON | See Remarks | Sale | 6,098 | $99.74 | $608,215 | 52,393 | Sep 20, 2021 |
| Baker Brothers Life Sciences LP | — | Purchase | 30,285 | $94.38 | $2,858,298 | 13,299,440 | Sep 15, 2021 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 52,201 | $93.35 | $4,872,963 | 13,269,155 | Sep 7, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 5,258 | $10.29 | $54,105 | 58,491 | Aug 20, 2021 |
| 667, L.P. | — | Purchase | 2,396 | $87.48 | $209,602 | 13,138,019 | Aug 18, 2021 |
| Baker Bros. Advisors (GP) LLC | — | Purchase | 600 | $85.72 | $51,432 | 12,998,808 | Aug 11, 2021 |
| EHRLICH JASON | See Remarks | Sale | 2,234 | $85.76 | $191,588 | 57,949 | Jul 20, 2021 |
| Baker Brothers Life Sciences LP | — | Purchase | 10,170 | $90.76 | $923,029 | 12,751,926 | Jun 30, 2021 |
| EHRLICH JASON | See Remarks | Sale | 845 | $86.07 | $72,729 | 60,183 | Jun 21, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,454 | $80.90 | $117,629 | 67,133 | Jun 15, 2021 |
| BORGESON JOHN A. | See Remarks | Option Exercise | 3,619 | — | — | 171,609 | Jun 15, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,147 | $84.75 | $97,208 | 64,968 | Jun 11, 2021 |
| BORGESON JOHN A. | See Remarks | Sale | 1,037 | $84.75 | $87,886 | 167,990 | Jun 11, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,490 | $81.77 | $121,837 | 63,558 | May 20, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 5,379 | $10.29 | $55,350 | 68,222 | May 12, 2021 |
| EHRLICH JASON | See Remarks | Sale | 3,650 | $111.31 | $406,282 | 64,289 | Apr 20, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,984 | $130.49 | $258,892 | 67,809 | Mar 22, 2021 |
| BORGESON JOHN A. | See Remarks | Sale | 1,255 | $130.82 | $164,179 | 166,704 | Mar 10, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 12,500 | $10.29 | $128,625 | 62,843 | Mar 3, 2021 |
| EHRLICH JASON | See Remarks | Sale | 262 | $122.00 | $31,964 | 57,031 | Feb 22, 2021 |
| EHRLICH JASON | See Remarks | Option Exercise | 26,950 | $10.29 | $277,316 | 77,293 | Jan 20, 2021 |
| EHRLICH JASON | See Remarks | Sale | 1,096 | $147.32 | $161,463 | 43,224 | Dec 21, 2020 |
| EHRLICH JASON | See Remarks | Sale | 2,614 | $139.96 | $365,855 | 42,900 | Nov 20, 2020 |
| Baker Brothers Life Sciences LP | — | Purchase | 1,411,619 | $108.00 | $152,454,852 | 12,736,556 | Nov 20, 2020 |