As of November 6, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Seer, Inc. The largest reported stake is Omid Farokhzad's, at 12%. 7 filings are on record since August 13, 2025 (Schedule 13G/A, May 15, 2026).
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Key facts
- · Holder: BML Investment Partners, L.P. · Percent: 4.7% · Shares: 2,180,490 · SCHEDULE 13D
- · Holder: Omid Farokhzad · Percent: 12% · SCHEDULE 13G/A
- · Holder: Invus Public Equities, L.P. · Percent: 4.4% · SCHEDULE 13G/A
- · Holder: Radoff Bradley Louis · Percent: 4.6% · SCHEDULE 13D/A
- · Holder: Radoff Bradley Louis · Percent: 4.6% · SCHEDULE 13D/A
Seer, Inc. has 7 Schedule 13D or 13G filings on record since 2025-08-13. 1 holder's latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Stated intent
Intent stated in Item 4 BML Investment Partners, L.P.
On November 2, the Reporting Person sent a letter to the Board expressing disappointment in the Board's decision to remain a public company.From Item 4 of the SCHEDULE 13D filed 2026-11-02
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 12% | 6,918,732 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 | |
| BML Investment Partners, L.P. | 4.7% | 2,180,490 | SCHEDULE 13D, 2026-11-02 | 2026-11-02 |
| 4.6% | 2,610,232 | SCHEDULE 13D/A, 2026-04-13 | 2026-04-12 | |
| Invus Public Equities, L.P. | 4.4% | 2,458,673 | SCHEDULE 13G/A, 2026-05-04 | 2026-03-31 |
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More on Seer, Inc. and the records around it.
Seer, Inc. elsewhere on the record
- Leadership changes Sep 2026
- Who owns it
Companies that share a holder
- Radoff Family Foundation also filed stake reports on 11 other companies: Identiv, Inc. (Nov 2026), HARTE HANKS INC (Aug 2026), REGIONAL HEALTH PROPERTIES, INC (Aug 2026)
- BML Investment Partners, L.P. also filed stake reports on 15 other companies: LENZ Therapeutics, Inc. (Nov 2026), Connect Biopharma Holdings Ltd (Oct 2026), Outset Medical, Inc. (Oct 2026)
- Invus Public Equities, L.P. also filed stake reports on 24 other companies: City Therapeutics, Inc. (Oct 2026), Yarrow Bioscience, Inc. (Sep 2026), Abivax S.A. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BML Investment Partners, L.P. | 0 | 2,180,490 | 0 | 2,180,490 | SCHEDULE 13D, 2026-11-02 |
| Braden M Leonard | 420,000 | 2,180,490 | 420,000 | 2,180,490 | SCHEDULE 13D, 2026-11-02 |
The latest filing identifies Seer, Inc. by CUSIP 81578P106 and gives its principal executive office as 3800 Bridge Parkway, Suite 102, Redwood City, CA 94065 (SCHEDULE 13D, 2026-11-02).
Purpose of Transaction (Item 4)
Radoff Bradley Louis
Item 4 is hereby amended to add the following: On April 13, 2026, the Reporting Persons submitted a non-binding proposal to acquire 100% of the equity of the Issuer at a purchase price of $2.25 per Share in cash, representing a 33% premium to the Issuer's most recent closing price, plus a contingent value right representing the right for stockholders to receive 80% of the net proceeds received from any license, sale or other disposition of the Issuer's business and assets, including PrognomiQ (the "Proposal"). The Proposal is only subject to limited confirmatory due diligence and is based on the availability of at least $215 million of net cash and cash equivalents at closing and is not subject to any financing conditions. The Reporting Persons requested a response regarding the Issuer's board of directors' (the "Board") willingness and availability to discuss the Proposal no later than 5:00pm ET on April 22, 2026, at which point the Proposal will expire. Also on April 13, 2026, Mr. Radoff delivered a letter to the Issuer nominating Howard H. Berman, Joshua S. Horowitz and Luis E. Rinaldini (the "Nominees") for election to the Board at the Issuer's 2026 annual meeting of stockholders (the "Annual Meeting"). Also on April 13, 2026, the Reporting Persons issued a press release (the "Press Release"), which included a copy of the Proposal delivered to the Board and announced the nomination of the Nominees for election to the Board at the Annual Meeting. The foregoing …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-04-13; the filing has the rest
BML Investment Partners, L.P.
On November 2, the Reporting Person sent a letter to the Board expressing disappointment in the Board's decision to remain a public company.Item 4 of the SCHEDULE 13D filed 2026-11-02
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-13 | Radoff Bradley Louis | 2.6% | SCHEDULE 13G/A |
| 2026-02-20 | Radoff Bradley Louis | 3.7% | SCHEDULE 13D |
| 2026-03-02 | Radoff Bradley Louis | 4.6% | SCHEDULE 13D/A |
| 2026-04-13 | Radoff Bradley Louis | 4.6% | SCHEDULE 13D/A |
| 2026-05-04 | Invus Public Equities, L.P. | 4.4% | SCHEDULE 13G/A |
| 2026-05-15 | Omid Farokhzad | 12% | SCHEDULE 13G/A |
| 2026-11-02 | BML Investment Partners, L.P. intent stated | 4.7% | SCHEDULE 13D |
Questions about who owns Seer, Inc.
Who owns Seer, Inc.?
On this page, one holder's latest ownership filing reports 5% or more of Seer, Inc.: Omid Farokhzad (12%, Schedule 13G/A, filed 2026-05-15).
When did Omid Farokhzad buy into Seer, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Omid Farokhzad on this page is the Schedule 13G/A, filed 2026-05-15, reporting 12%. 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%); 7 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 Seer, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 18, 2026 | Leadership change: David Horn departs, Chief Financial Officer, and 1 more | — | 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.