First Solar, Inc. (FSLR) ownership: Top institutional holder: VANGUARD GROUP INC ($3.51B). Insider activity: Net Seller (0 buys, 20 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 13444103.00 | $3.51B | 2025-12-31 |
| BlackRock, Inc. | 13821076.00 | $2.73B | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6788934.00 | $1.34B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5696888.00 | $1.12B | 2026-03-31 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 5681300.00 | $1.12B | 2026-03-31 |
| STATE STREET CORP | 5284617.00 | $1.04B | 2026-03-31 |
| JANE STREET GROUP, LLC | 4944100.00 | $975.27M | 2026-03-31 |
| CITADEL ADVISORS LLC | 3914500.00 | $772.17M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-26 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.