KODIAK SCIENCES INC KOD
COM · Common Stock · CUSIP 50015M109 · ISIN US50015M1099
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersPalo Alto, CA
- Websitekodiak.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($145.2k this quarter). Holder counts are more reliable. Shares outstanding: 62.8m as of 2026-08-06, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $38.96. Options: 10 managers hold calls ($38.3m notional), 7 hold puts ($15.7m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 143 |
| Q4 2022 | 137 |
| Q1 2023 | 128 |
| Q2 2023 | 129 |
| Q3 2023 | 103 |
| Q4 2023 | 98 |
| Q1 2024 | 115 |
| Q2 2024 | 108 |
| Q3 2024 | 99 |
| Q4 2024 | 109 |
| Q1 2025 | 108 |
| Q2 2025 | 102 |
| Q3 2025 | 121 |
| Q4 2025 | 158 |
| Q1 2026 | 188 |
| Q2 2026 | 200 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 35 | 47 |
| Q4 2024 | 51 | 43 |
| Q1 2025 | 60 | 49 |
| Q2 2025 | 42 | 50 |
| Q3 2025 | 63 | 43 |
| Q4 2025 | 97 | 54 |
| Q1 2026 | 110 | 71 |
| Q2 2026 | 116 | 78 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $5.1m | $3.8m | 0.75 |
| Q4 2025 | $8.0m | $3.3m | 0.41 |
| Q1 2026 | $20.4m | $19.9m | 0.98 |
| Q2 2026 | $38.3m | $15.7m | 0.41 |
Biggest buyers
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +1.2m |
| T. Rowe Price Investment Management, Inc. | Added | +640.1k |
| GOLDMAN SACHS GROUP INC | Added | +627.0k |
| TWO SIGMA INVESTMENTS, LP | Added | +373.5k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +357.3k |
| Artisan Partners Limited Partnership | Added | +277.7k |
| BlackRock, Inc. | Added | +200.1k |
| STATE STREET CORP | Added | +168.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +167.8k |
| Ghisallo Capital Management LLC | New | +150.0k |
Biggest sellers
| CITADEL ADVISORS LLC | Reduced | -713.3k |
| Balyasny Asset Management L.P. | Reduced | -680.1k |
| SILVERARC CAPITAL MANAGEMENT, LLC | Reduced | -445.7k |
| Point72 Asset Management, L.P. | Reduced | -362.1k |
| Invesco Ltd. | Reduced | -230.6k |
| Ikarian Capital, LLC | Reduced | -206.1k |
| Atom Investors LP | Reduced | -113.9k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -105.1k |
| Trexquant Investment LP | Reduced | -93.3k |
| MORGAN STANLEY | Reduced | -80.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $9.3m239.9k shares |
| Ikarian Capital, LLC | Added | $8.5m217.7k shares |
| DIADEMA PARTNERS LP | Added | $7.7m196.7k shares |
| CITADEL ADVISORS LLC | Added | $4.3m109.5k shares |
| Caption Management, LLC | Added | $3.2m81.8k shares |
| BOOTHBAY FUND MANAGEMENT, LLC | Added | $2.4m62.8k shares |
| JANE STREET GROUP, LLC | Reduced | $1.7m43.8k shares |
| GROUP ONE TRADING LLC | Reduced | $592.2k15.2k shares |
| SIMPLEX TRADING, LLC | Added | $401.3k10.3k shares |
| Persistent Asset Partners Ltd | Added | $215.9k502 shares |
Biggest puts
| DIADEMA PARTNERS LP | Reduced | $5.7m146.9k shares |
| CITADEL ADVISORS LLC | Added | $3.9m99.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $3.6m93.2k shares |
| Caption Management, LLC | New | $1.3m33.3k shares |
| GROUP ONE TRADING LLC | Reduced | $728.6k18.7k shares |
| Persistent Asset Partners Ltd | Reduced | $344.9k372 shares |
| SIMPLEX TRADING, LLC | Reduced | $116.9k3.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
BAKER BROS. ADVISORS LP
13D · may seek influence
+2.2 pts · filed 2026-09-30
Stated purposeItem 4 of Schedule 13D is supplemented and amended, as the case may be, as follows: The disclosures in Item 5 below are incorporated herein by reference. This Amendment No. 12 is being filed to report the acquisition of common stock ("Common Stock") of Kodiak Sciences Inc. (the "Issuer") reported in Item 5(c) that resulted in a more than 1 percent change in beneficial ownership. The disclosure regarding the purchases in Item 5(c) below is incorporated herein by reference. The Funds hold securities of the Issuer for investment purposes. The Reporting Persons or their affiliates may purchase additional securities or dispose of securities in varying amounts and at varying times depending upon the Reporting Persons' continuing assessments of pertinent factors, including the availability of … Full filing |
35.0% |
| PERLROTH VICTOR 13G · exempt (held before listing) -1.1 pts · filed 2026-02-17 | 9.9% |
| Sirenia Capital Management LP 13G · institution new · filed 2026-05-15 | 5.7% |
| BlackRock, Inc. 13G · institution +0.9 pts · filed 2026-04-27 | 5.3% |
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution new · filed 2026-08-14 | 5.2% |
Fell to 5% or below in the last year: Point72 Asset Management, L.P. (1.0%, 2026-04-02)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 1 | $2.6k | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 1 | $60.0m | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 1 | $2.2m | $2.2m |
| Q3 2026 | 1 | $157.0m | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-29 | BAKER JULIAN +5 Director · See Footnotes | Bought | $2.9m33.7k shares |
| 2026-09-28 | BAKER JULIAN +5 Director · See Footnotes | Bought | $60.5m681.9k shares |
| 2026-09-28 | BAKER JULIAN +5 Director · See Footnotes | Bought | $58.6m807.8k shares |
| 2026-09-28 | BAKER JULIAN +5 Director · See Footnotes | Bought | $35.0m418.3k shares |
| 2026-06-04 | BORGESON JOHN A. Chief Financial Officer | Sold plan | $1.0m30.0k shares |
| 2026-04-02 | BORGESON JOHN A. Chief Financial Officer | Sold plan | $1.2m30.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BAKER BROS. ADVISORS LP 3.89% of their portfolio | 19.9m $776.1m | Unchanged |
| BlackRock, Inc. 0.00% of their portfolio | 4.1m $161.1m | Added +200.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 3.2m $126.6m | Added +1.2m |
| STATE STREET CORP 0.00% of their portfolio | 2.4m $94.3m | Added +168.5k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 2.3m $90.2m | Added +627.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.8m $70.3m | Added +87.6k |
| BRAIDWELL LP 2.58% of their portfolio | 1.8m $69.6m | Reduced -31.3k |
| Jupiter Topco LLC 0.02% of their portfolio | 1.5m $59.5m | First filing |
| RTW INVESTMENTS, LP 0.49% of their portfolio | 1.5m $58.0m | Unchanged |
| Boxer Capital Management, LLC 4.34% of their portfolio | 1.5m $57.6m | Added +116.6k |
| T. Rowe Price Investment Management, Inc. 0.04% of their portfolio | 1.5m $57.5m | Added +640.1k |
| TCG Crossover Management, LLC 1.35% of their portfolio | 1.4m $56.3m | Unchanged |
| ICONIQ Capital, LLC 1.42% of their portfolio | 1.3m $49.3m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.1m $41.4m | Added +62.5k |
| Ikarian Capital, LLC 6.76% of their portfolio | 1.1m $41.3m | Reduced -206.1k |
| Artisan Partners Limited Partnership 0.06% of their portfolio | 968.0k $37.7m | Added +277.7k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 793.6k $30.9m | Added +357.3k |
| Board of Trustees of The Leland Stanford Junior University 5.06% of their portfolio | 691.8k $27.0m | Unchanged |
| SILVERARC CAPITAL MANAGEMENT, LLC 2.37% of their portfolio | 546.3k $21.3m | Reduced -445.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 532.8k $20.8m | Added +167.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio | 500.0k $19.5m | Reduced -75.0k |
| Squadron Capital Management LLC 6.67% of their portfolio | 500.0k $19.5m | Added +120.0k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 473.0k $18.4m | Added +373.5k |
| MORGAN STANLEY 0.00% of their portfolio | 435.0k $16.9m | Reduced -80.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 383.7k $14.9m | Added +83.4k |
| BOONE CAPITAL MANAGEMENT LLC 3.44% of their portfolio | 378.0k $14.7m | Added +96.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 366.8k $14.3m | Reduced -24.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 358.1k $13.9m | Added +8.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 312.6k $12.2m | Reduced -2.8k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 292.0k $11.4m | Added +33.8k |
| FMR LLC 0.00% of their portfolio | 277.0k $10.8m | Added +93.1k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.19% of their portfolio | 265.5k $10.3m | Reduced -63.1k |
| DIADEMA PARTNERS LP 3.00% of their portfolio | 218.1k $8.5m | Added +25.2k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 211.3k $8.2m | Reduced -18.7k |
| TD Asset Management Inc 0.01% of their portfolio | 194.1k $7.6m | Added +31.8k |
| PFM Health Sciences, LP 0.65% of their portfolio | 193.3k $7.5m | Added +78.6k |
| UBS Group AG 0.00% of their portfolio | 190.1k $7.4m | Added +36.9k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 189.2k $7.4m | Reduced -105.1k |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 186.5k $7.3m | Added +38.5k |
| Nuveen, LLC 0.00% of their portfolio | 174.7k $6.8m | Added +79.4k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 157.5k $6.1m | Reduced -713.3k |
| Squarepoint Ops LLC 0.01% of their portfolio | 151.1k $5.9m | Added +80.0k |
| Ghisallo Capital Management LLC 0.11% of their portfolio | 150.0k $5.8m | New |
| Bruce & Co., Inc. 1.53% of their portfolio | 145.0k $5.6m | Unchanged |
| FEDERATED HERMES, INC. 0.01% of their portfolio | 144.1k $5.6m | Reduced -66.1k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 120.5k $4.7m | Added +40.3k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 114.1k $4.4m | Reduced -6.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 111.9k $4.4m | Added +594 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 100.8k $3.9m | Added +23.7k |
| Harvest Investment Services, LLC 0.59% of their portfolio | 97.8k $3.8m | Added +26.5k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 97.6k $3.8m | Reduced -362.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 96.9k $3.8m | Added +27.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 94.0k $3.7m | New |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 89.6k $3.5m | Added +52.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 87.8k $3.4m | Added +8.1k |
| RIA Advisory Group LLC 0.75% of their portfolio | 87.2k $3.4m | Added +2.6k |
| SPHERA FUNDS MANAGEMENT LTD. 0.46% of their portfolio | 81.8k $3.2m | Reduced -33.0k |
| Atom Investors LP 0.27% of their portfolio | 76.8k $3.0m | Reduced -113.9k |
| STEMPOINT CAPITAL LP 0.51% of their portfolio | 75.9k $3.0m | New |
| Invesco Ltd. 0.00% of their portfolio | 74.5k $2.9m | Reduced -230.6k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 74.0k $2.9m | New |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 71.1k $2.8m | Added +41.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 67.8k $2.6m | Reduced -18.1k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 67.7k $2.6m | New |
| Pictet Asset Management Holding SA 0.00% of their portfolio | 66.0k $2.5m | New |
| CITIGROUP INC 0.00% of their portfolio | 62.4k $2.4m | Added +51.7k |
| Swiss National Bank 0.00% of their portfolio | 62.0k $2.4m | Added +4.6k |
| Persistent Asset Partners Ltd 0.69% of their portfolio | 56.1k $2.2m | Added +4.7k |
| Emerald Investment Advisers, LLC 0.14% of their portfolio | 55.6k $2.2m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 55.3k $2.2m | Added +14.1k |
| Jain Global LLC 0.03% of their portfolio | 55.2k $2.2m | Added +2.6k |
| Resolute Capital Asset Partners LLC 0.86% of their portfolio | 51.4k $2.0m | Reduced -48.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 50.2k $2.0m | Added +2.2k |
| Informed Momentum Co LLC 0.17% of their portfolio | 48.6k $1.9m | Reduced -39.8k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 47.2k $1.8m | Added +8.7k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 46.4k $1.8m | Reduced -680.1k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 44.1k $1.7m | Reduced -5.2k |
| Rafferty Asset Management, LLC 0.00% of their portfolio | 41.6k $1.6m | Reduced -29.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 41.6k $1.6m | Reduced -2.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.03% of their portfolio | 40.7k $1.6m | Added +22.5k |
| HighVista Strategies LLC 0.36% of their portfolio | 40.6k $1.6m | Reduced -3.0k |
| POLEN CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 35.5k $1.4m | Reduced -5.9k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 34.9k $1.4m | Added +16.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 34.3k $1.3m | Added +4.9k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 34.2k $1.3m | Added +4.5k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 31.2k $1.2m | Added +16.9k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 30.6k $1.2m | Added +23 |
| Trexquant Investment LP 0.01% of their portfolio | 30.1k $1.2m | Reduced -93.3k |
| Engineers Gate Manager LP 0.01% of their portfolio | 29.5k $1.2m | Added +17.5k |
| Legal & General Group Plc 0.00% of their portfolio | 29.3k $1.1m | Added +9.1k |
| XTX Topco Ltd 0.01% of their portfolio | 29.3k $1.1m | Added +11.3k |
| GSA CAPITAL PARTNERS LLP 0.07% of their portfolio | 27.5k $1.1m | New |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.01% of their portfolio | 25.4k $990.0k | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 25.3k $986.4k | Added +14.7k |
| Aries Wealth Management 0.19% of their portfolio | 25.0k $974.0k | Unchanged |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 24.3k $947.1k | Added +5.1k |
| State of Wyoming 0.09% of their portfolio | 23.2k $905.6k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 23.0k $895.4k | Added +2.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 23.0k $888.5k | Added +123 |
| BARCLAYS PLC 0.00% of their portfolio | 21.0k $819.7k | Added +9.7k |