As of November 6, 2026, Standard Biotools Inc. is a publicly traded company (Nasdaq: LAB). The largest holder reporting an active stake on Schedule 13D is Casdin Capital, LLC, at 23.9%. No bankruptcy or receivership appears in its SEC Form 8-K filings. Passive holders reporting on Schedule 13G include Mak Capital One LLC (7.3%), MAK Capital Fund LP (6.7%), Long Focus Capital Management, LLC (6%) (Schedule 13D/A, June 9, 2026).
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Is Standard Biotools Inc. a real, registered company?
- Standard Biotools Inc. files with the SEC under CIK 1162194 (its SEC filings).
- Its shares are listed under the ticker LAB on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Boston, Massachusetts, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under STANDARD BIOTOOLS INC. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Long Focus Capital Management, LLC (filed 2026-08-14).
Who are Standard Biotools Inc.'s owners and officers?
Standard Biotools Inc.: incorporated in Delaware; business address in Boston, Massachusetts; industry Pharmaceutical Preparations (Schedule 13G, 2026-08-14).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-08-14 | Long Focus Capital Management, LLC | 6% |
| Schedule 13G/A, 2026-08-14 | Mak Capital One LLC | 7.3% |
| Schedule 13G/A, 2026-07-30 | Blackrock, Inc. | 2% |
| Schedule 13D, 2026-06-12 | Viking Global Investors LP | 15% |
| Schedule 13D/A, 2026-06-09 | Casdin Capital, LLC | 23.9% |
| Schedule 13G/A, 2026-05-15 | Mak Capital Fund LP | 6.7% |
| Schedule 13G/A, 2026-05-15 | Viking Global Investors LP | 15% |
| Schedule 13G, 2026-01-07 | Mak Capital Fund LP | 5.19% |
| Schedule 13D/A, 2025-11-28 | Casdin Capital, LLC | 24.2% |
Questions about who owns Standard Biotools Inc.
Who owns Standard Biotools Inc.?
On this page, 5 holders' latest ownership filings report 5% or more of Standard Biotools Inc.: Casdin Capital, LLC (23.9%, Schedule 13D/A, filed 2026-06-09), Viking Global Investors LP (15%, Schedule 13D, filed 2026-06-12), Mak Capital One LLC (7.3%, Schedule 13G/A, filed 2026-08-14), Mak Capital Fund LP (6.7%, Schedule 13G/A, filed 2026-05-15) and Long Focus Capital Management, LLC (6%, Schedule 13G, filed 2026-08-14).
Who are the largest shareholders of Standard Biotools Inc.?
By the share each holder's latest filing reports, the largest holders of Standard Biotools Inc. on this page are Casdin Capital, LLC (23.9%), Viking Global Investors LP (15%) and Mak Capital One LLC (7.3%).
When did Casdin Capital, LLC buy into Standard Biotools Inc.?
The filings give report dates, not purchase dates. The earliest filing from Casdin Capital, LLC on this page is the Schedule 13D/A, filed 2025-11-28, reporting 24.2%; its latest, Schedule 13D/A filed 2026-06-09, reports 23.9%. 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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Which insiders own Standard Biotools Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director and 10% owner: 91,837,025 shares (23.3% of shares outstanding), 3,053,169 held directly and 88,783,856 indirectly (Form 4, 2026-06-23).
- Casdin Private Growth Equity Fund GP, LLC, a director: 77,745,281 shares (19.7% of shares outstanding), 2,901,062 held directly and 74,844,219 indirectly, on a joint filing (Form 4, 2025-12-04).
- Casdin Capital, LLC, a director and 10% owner: 77,745,281 shares (19.7% of shares outstanding), 2,901,062 held directly and 74,844,219 indirectly, on a joint filing (Form 4, 2025-12-04).
- Casdin Private Growth Equity Fund, L.P., a director: 77,745,281 shares (19.7% of shares outstanding), 2,901,062 held directly and 74,844,219 indirectly, on a joint filing (Form 4, 2025-12-04).
- Casdin Partners GP, LLC, a director and 10% owner: 77,745,281 shares (19.7% of shares outstanding), 2,901,062 held directly and 74,844,219 indirectly, on a joint filing (Form 4, 2025-12-04).
Shares outstanding: 394,790,441 as of 2026-11-01, from the company's latest SEC cover page.
How much has Standard Biotools Inc. raised?
Acquisitions reported on Form 8-K, Item 2.01: completed an acquisition (2026-01-30).
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More on Standard Biotools Inc. and the records around it.
Standard Biotools Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- Casdin Capital, LLC also filed stake reports on 3 other companies: BIOLIFE SOLUTIONS INC (Jun 2026), Relay Therapeutics, Inc. (Feb 2026), Codexis, Inc. (Nov 2025)
- MAK CAPITAL ONE LLC also filed stake reports on 3 other companies: PERMA FIX ENVIRONMENTAL SERVICES INC (Aug 2026), ClearPoint Neuro, Inc. (Aug 2026), HEIDRICK & STRUGGLES INTERNATIONAL INC (Nov 2025)
- MAK Capital Fund LP also filed stake reports on 7 other companies: Comstock Inc. (Oct 2026), Autolus Therapeutics plc (May 2026), ClearPoint Neuro, Inc. (May 2026)
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