As of November 6, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Cerus Corporation. The largest reported stake is ARK Investment Management LLC's, at 8.95%. 8 filings are on record since July 30, 2025 (Schedule 13G/A, August 14, 2026).
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Key facts
- · Reporting person: ARK Investment Management LLC · Sole voting: 16,642,316 · Shared voting: 226,246 · Sole dispositive: 17,932,099 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: Baker Bros. Advisors LP · Sole voting: 6,395,431 · Shared voting: 0 · Sole dispositive: 6,395,431 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
- · Reporting person: Soleus Capital Master Fund, L.P. · Sole voting: 0 · Shared voting: 2,500,000 · Sole dispositive: 0 · Shared dispositive: 2,500,000 · SCHEDULE 13G/A, 2026-08-13
- · Reporting person: The Vanguard Group · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-03-26
- · Holder: Soleus Capital Master Fund, L.P. · Percent: 5.1% · SCHEDULE 13G
Cerus Corporation has 8 Schedule 13D or 13G filings on record since 2025-07-30. 1 holder's latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| ARK Investment Management LLC | 8.95% | 17,932,099 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Baker Bros. Advisors LP | 3.2% | 6,395,431 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Soleus Capital Master Fund, L.P. | 1.2% | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on Cerus Corporation and the records around it.
Cerus Corporation elsewhere on the record
Companies that share a holder
- ARK Investment Management LLC also filed stake reports on 20 other companies: Tempus AI, Inc. (Nov 2026), 10x Genomics, Inc. (Oct 2026), Twist Bioscience Corp (Sep 2026)
- Soleus Capital Master Fund, L.P. also filed stake reports on 24 other companies: Beta Bionics, Inc. (Nov 2026), Evolus, Inc (Nov 2026), INSPIRE MEDICAL SYSTEMS, INC. (Nov 2026)
- Baker Bros. Advisors LP also filed stake reports on 25 other companies: Madrigal Pharmaceuticals, Inc. (Nov 2026), Kodiak Sciences Inc. (Sep 2026), BeOne Medicines Ltd. (Sep 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| ARK Investment Management LLC | 16,642,316 | 226,246 | 17,932,099 | 0 | SCHEDULE 13G/A, 2026-08-14 |
| Catherine D. Wood | 0 | 16,868,562 | 0 | 17,932,099 | SCHEDULE 13G/A, 2026-08-14 |
| Baker Bros. Advisors LP | 6,395,431 | 0 | 6,395,431 | 0 | SCHEDULE 13G/A, 2026-08-14 |
| Baker Bros. Advisors (GP) LLC | 6,395,431 | 0 | 6,395,431 | 0 | SCHEDULE 13G/A, 2026-08-14 |
| Julian C. Baker | 6,415,295 | 0 | 6,415,295 | 0 | SCHEDULE 13G/A, 2026-08-14 |
| Felix J. Baker | 6,415,295 | 0 | 6,415,295 | 0 | SCHEDULE 13G/A, 2026-08-14 |
| Soleus Capital Master Fund, L.P. | 0 | 2,500,000 | 0 | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 |
| Soleus Capital, LLC | 0 | 2,500,000 | 0 | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 |
| Soleus Capital Group, LLC | 0 | 2,500,000 | 0 | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 |
| Soleus Capital Management, L.P. | 0 | 2,500,000 | 0 | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 |
| Soleus GP, LLC | 0 | 2,500,000 | 0 | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 |
| Guy Levy | 0 | 2,500,000 | 0 | 2,500,000 | SCHEDULE 13G/A, 2026-08-13 |
| The Vanguard Group | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-03-26 |
The latest filing identifies Cerus Corporation by CUSIP 157085101 and gives its principal executive office as 1220 Concord Avenue, Suite 600, Concord, CA 94520 (SCHEDULE 13G/A, 2026-08-14).
What the percentages are based on
The information in Item 11 of each of the cover pages to this Amendment No. 13 is incorporated herein by reference. The percentage of beneficial ownership for each of the Reporting Persons reported herein is based on 201,457,000 shares of Common Stock outstanding as of June 30, 2026, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on July 30, 2026.Baker Bros. Advisors LP, SCHEDULE 13G/A, 2026-08-14
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-30 | ARK Investment Management LLC | 10.05% | SCHEDULE 13G/A |
| 2025-08-14 | Julian C. Baker | 6.8% | SCHEDULE 13G/A |
| 2025-11-14 | Baker Bros. Advisors LP | 5.2% | SCHEDULE 13G/A |
| 2026-03-24 | Soleus Capital Master Fund, L.P. | 5.1% | SCHEDULE 13G |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-08-13 | Soleus Capital Master Fund, L.P. | 1.2% | SCHEDULE 13G/A |
| 2026-08-14 | ARK Investment Management LLC | 8.95% | SCHEDULE 13G/A |
| 2026-08-14 | Baker Bros. Advisors LP | 3.2% | SCHEDULE 13G/A |
Questions about who owns Cerus Corporation
Who owns Cerus Corporation?
On this page, one holder's latest ownership filing reports 5% or more of Cerus Corporation: ARK Investment Management LLC (8.95%, Schedule 13G/A, filed 2026-08-14).
When did ARK Investment Management LLC buy into Cerus Corporation?
The filings give report dates, not purchase dates. The earliest filing from ARK Investment Management LLC on this page is the Schedule 13G/A, filed 2025-07-30, reporting 10.05%; its latest, Schedule 13G/A filed 2026-08-14, reports 8.95%. 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%); 8 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.
Also on the record for Cerus Corporation
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| July 10, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
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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.