As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Kodiak Sciences Inc. The largest reported stake is Baker Bros. Advisors LP's, at 35%. 9 filings are on record since August 19, 2025 (Schedule 13D/A, September 30, 2026).
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Key facts
- · Reporting person: Baker Bros. Advisors LP · Sole voting: 22,049,297 · Shared voting: 0 · Sole dispositive: 22,049,297 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-09-30
- · Reporting person: T. Rowe Price Associates, Inc. · Sole voting: 3,247,060 · Shared voting: 0 · Sole dispositive: 3,248,611 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
- · Holder: Sirenia Capital Management LP · Percent: 5.7% · SCHEDULE 13G
- · Holder: BlackRock, Inc. · Percent: 5.3% · SCHEDULE 13G
- · Holder: Point72 Asset Management, L.P. · Percent: 1% · SCHEDULE 13G
Kodiak Sciences Inc. has 9 Schedule 13D or 13G filings on record since 2025-08-19. 5 holders' latest filing reports 5% or more of common stock, $0.0001 par value per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Baker Bros. Advisors LP | 35% | 22,049,297 | SCHEDULE 13D/A, 2026-09-30 | 2026-09-28 |
| D. Victor Perlroth, M.D. | 9.9% | 6,504,427 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Sirenia Capital Management LP | 5.7% | 3,495,000 | SCHEDULE 13G, 2026-05-15 | 2026-03-31 |
| BlackRock, Inc. | 5.3% | 3,273,386 | SCHEDULE 13G, 2026-04-27 | 2026-03-31 |
| T. Rowe Price Associates, Inc. | 5.2% | 3,248,611 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Point72 Asset Management, L.P. | 1% | 609,806 | SCHEDULE 13G, 2026-04-02 | 2026-03-26 |
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More on Kodiak Sciences Inc. and the records around it.
Kodiak Sciences Inc. elsewhere on the record
Companies that share a holder
- Sirenia Capital Management LP also filed stake reports on 19 other companies: Alto Neuroscience, Inc. (Aug 2026), ANAPTYSBIO, INC (Aug 2026), CYBIN INC. (Aug 2026)
- Baker Bros. Advisors LP also filed stake reports on 25 other companies: Madrigal Pharmaceuticals, Inc. (Nov 2026), BeOne Medicines Ltd. (Sep 2026), Cerus Corporation (Aug 2026)
- Point72 Asset Management, L.P. also filed stake reports on 89 other companies: Target Hospitality Corp. (Nov 2026), E.W. SCRIPPS Co (Oct 2026), Viridian Therapeutics, Inc. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 22,049,297 | 0 | 22,049,297 | 0 | SCHEDULE 13D/A, 2026-09-30 |
| Baker Bros. Advisors (GP) LLC | 22,049,297 | 0 | 22,049,297 | 0 | SCHEDULE 13D/A, 2026-09-30 |
| Julian C. Baker | 22,049,297 | 0 | 22,049,297 | 0 | SCHEDULE 13D/A, 2026-09-30 |
| Felix J. Baker | 22,049,297 | 0 | 22,049,297 | 0 | SCHEDULE 13D/A, 2026-09-30 |
| T. Rowe Price Associates, Inc. | 3,247,060 | 0 | 3,248,611 | 0 | SCHEDULE 13G, 2026-08-14 |
The latest filing identifies Kodiak Sciences Inc. by CUSIP 50015M109 and gives its principal executive office as 1250 Page Mill Road, Palo Alto, CA 94304 (SCHEDULE 13D/A, 2026-09-30).
Source of funds (Item 3)
Item 3 of Schedule 13D is supplemented and amended, as the case may be, as follows: The disclosure in Item 5 below is incorporated herein by reference.Baker Bros. Advisors LP, SCHEDULE 13D/A, 2026-09-30
Purpose of Transaction (Item 4)
Baker Bros. Advisors LP
Item 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 shares of Common Stock or other securities for purchase at particular price levels, the business prospects of the Issuer, other business investment opportunities, economic conditions, stock market conditions, money market conditions, the attitudes and actions of the board of directors of the Issuer (the "Board") and management of the Issuer, the availability and nature of opportunities to dispose of securities of the Issuer and other plans and requirements of the particular entities. The Reporting Persons may discuss items of mutual interest with the Issuer's management, other members of the Board and other investors, which could include items in subparagraphs (a) through (j) of Item 4 of …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-09-30; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-19 | Point72 Asset Management, L.P. | 5.5% | SCHEDULE 13G |
| 2025-12-19 | Baker Bros. Advisors LP | 32.8% | SCHEDULE 13D/A |
| 2026-02-17 | Point72 Asset Management, L.P. | 3.5% | SCHEDULE 13G/A |
| 2026-02-17 | D. Victor Perlroth, M.D. | 9.9% | SCHEDULE 13G/A |
| 2026-04-02 | Point72 Asset Management, L.P. | 1% | SCHEDULE 13G |
| 2026-04-27 | BlackRock, Inc. | 5.3% | SCHEDULE 13G |
| 2026-05-15 | Sirenia Capital Management LP | 5.7% | SCHEDULE 13G |
| 2026-08-14 | T. Rowe Price Associates, Inc. | 5.2% | SCHEDULE 13G |
| 2026-09-30 | Baker Bros. Advisors LP | 35% | SCHEDULE 13D/A |
Questions about who owns Kodiak Sciences Inc.
Who owns Kodiak Sciences Inc.?
On this page, 5 holders' latest ownership filings report 5% or more of Kodiak Sciences Inc.: Baker Bros. Advisors LP (35%, Schedule 13D/A, filed 2026-09-30), D. Victor Perlroth, M.D. (9.9%, Schedule 13G/A, filed 2026-02-17), Sirenia Capital Management LP (5.7%, Schedule 13G, filed 2026-05-15), BlackRock, Inc. (5.3%, Schedule 13G, filed 2026-04-27) and T. Rowe Price Associates, Inc. (5.2%, Schedule 13G, filed 2026-08-14).
Who are the largest shareholders of Kodiak Sciences Inc.?
By the share each holder's latest filing reports, the largest holders of Kodiak Sciences Inc. on this page are Baker Bros. Advisors LP (35%), D. Victor Perlroth, M.D. (9.9%) and Sirenia Capital Management LP (5.7%).
When did Baker Bros. Advisors LP buy into Kodiak Sciences Inc.?
The filings give report dates, not purchase dates. The earliest filing from Baker Bros. Advisors LP on this page is the Schedule 13D/A, filed 2025-12-19, reporting 32.8%; its latest, Schedule 13D/A filed 2026-09-30, reports 35%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 9 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.