As of November 6, 2026, First Solar, Inc. is a publicly traded company (Nasdaq: FSLR); its largest reported holder is BlackRock, with 11.8% on Schedule 13G/A of July 28, 2026, then Vanguard (7.3%). The largest insider holding is Mark R. Widmar, the chief executive and a director, with 81,861 shares (0.08% of shares outstanding), per Form 4 of May 27, 2026 (Schedule 13G/A, July 28, 2026).
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Is First Solar, Inc. a real, registered company?
- First Solar, Inc. files with the SEC under CIK 1274494 (its SEC filings).
- Its shares are listed under the ticker FSLR on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Phoenix, Arizona, 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 First Solar, 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 Citadel Securities GP LLC (filed 2026-10-15).
Who are First Solar, Inc.'s owners and officers?
First Solar, Inc.: incorporated in Delaware; business address in Phoenix, Arizona; industry Semiconductors & Related Devices (Schedule 13G, 2026-10-15).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-10-15 | Citadel Securities Gp LLC | 5% |
| Schedule 13G/A, 2026-10-15 | Citadel Securities Gp LLC | 6% |
| Schedule 13G/A, 2026-08-14 | G1 Execution Services, LLC | 7% |
| Schedule 13G, 2026-08-13 | Jane Street Group, LLC | 5.1% |
| Schedule 13G, 2026-08-07 | State Street Corporation | 5.2% |
| Schedule 13G/A, 2026-07-28 | Blackrock, Inc. | 11.8% |
| Schedule 13G/A, 2026-05-15 | Capital Ventures International | 5.3% |
| Schedule 13G/A, 2026-05-06 | Fmr LLC | 1.7% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 5.32% |
| Schedule 13G, 2026-04-29 | Vanguard Capital Management | 7.3% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G, 2026-02-05 | Fmr LLC | 6.1% |
Questions about who owns First Solar, Inc.
Who owns First Solar, Inc.?
On this page, 8 holders' latest ownership filings report 5% or more of First Solar, Inc.: Blackrock, Inc. (11.8%, Schedule 13G/A, filed 2026-07-28), Vanguard Capital Management (7.3%, Schedule 13G, filed 2026-04-29), G1 Execution Services, LLC (7%, Schedule 13G/A, filed 2026-08-14), Vanguard Portfolio Management (5.32%, Schedule 13G, filed 2026-04-29) and Capital Ventures International (5.3%, Schedule 13G/A, filed 2026-05-15); 3 more are listed above.
Who are the largest shareholders of First Solar, Inc.?
By the share each holder's latest filing reports, the largest holders of First Solar, Inc. on this page are Blackrock, Inc. (11.8%), Vanguard Capital Management (7.3%) and G1 Execution Services, LLC (7%).
When did Blackrock, Inc. buy into First Solar, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Blackrock, Inc. on this page is the Schedule 13G/A, filed 2026-07-28, reporting 11.8%. 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%); 12 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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What the Full Report on First Solar, Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Which insiders own First Solar, 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.
- , the chief executive and a director: 81,861 shares (0.08% of shares outstanding) (Form 4, 2026-05-27).
- , a director: 69,752 shares (0.06% of shares outstanding), 66,479 held directly and 3,273 indirectly (Form 4, 2026-10-02).
- , the chief financial officer: 30,712 shares (0.03% of shares outstanding) (Form 4, 2026-05-05).
- , a director: 27,685 shares (0.03% of shares outstanding), held indirectly through a post family trust (Form 4, 2026-10-02).
- , the chief people and comm. officer: 23,792 shares (0.02% of shares outstanding) (Form 4, 2026-06-01).
Shares outstanding: 107,481,151 as of 2026-10-23, from the company's latest SEC cover page.
How much has First Solar, Inc. raised?
No fundraising or offering filing from First Solar, Inc. is on file with us.
Keep reading
More on First Solar, Inc. and the records around it.
First Solar, Inc. elsewhere on the record
- 5%+ stake filings Oct 2026
Companies that share a holder
- Citadel Securities GP LLC also filed stake reports on 24 other companies: CIPHER DIGITAL INC. (Oct 2026), AmpliTech Group, Inc. (Oct 2026), IREN Limited (Sep 2026)
- Capital Ventures International also filed stake reports on 45 other companies: AmpliTech Group, Inc. (Aug 2026), Bitdeer Technologies Group (Aug 2026), Compass Diversified Holdings (Aug 2026)
- JANE STREET GROUP, LLC also filed stake reports on 73 other companies: AXT INC (Nov 2026), BIOVIE INC. (Nov 2026), Bitdeer Technologies Group (Nov 2026)
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