FIRST SOLAR INC FSLR
COM · Common Stock · CUSIP 336433107 · ISIN US3364331070
American company dedicated to the production of photovoltaic modules
- SectorTechnology
- IndustrySemiconductors & Related Devices
- HeadquartersPhoenix, AZ
- Founded1999
- Websitefirstsolar.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($38.1m this quarter). Holder counts are more reliable. Shares outstanding: 107.2m as of 2025-07-25, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $165.26. Options: 68 managers hold calls ($7.0bn notional), 51 hold puts ($4.2bn).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 573 |
| Q4 2022 | 675 |
| Q1 2023 | 730 |
| Q2 2023 | 749 |
| Q3 2023 | 740 |
| Q4 2023 | 781 |
| Q1 2024 | 791 |
| Q2 2024 | 907 |
| Q3 2024 | 923 |
| Q4 2024 | 891 |
| Q1 2025 | 825 |
| Q2 2025 | 874 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 350 | 338 |
| Q4 2023 | 355 | 363 |
| Q1 2024 | 389 | 347 |
| Q2 2024 | 459 | 394 |
| Q3 2024 | 477 | 380 |
| Q4 2024 | 401 | 453 |
| Q1 2025 | 398 | 452 |
| Q2 2025 | 481 | 354 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $4.6bn | $6.4bn | 1.39 |
| Q4 2024 | $3.2bn | $3.3bn | 1.04 |
| Q1 2025 | $2.8bn | $2.2bn | 0.80 |
| Q2 2025 | $7.0bn | $4.2bn | 0.60 |
Biggest buyers
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +4.3m |
| BlackRock, Inc. | Added | +1.1m |
| CITADEL ADVISORS LLC | Added | +910.8k |
| VIKING GLOBAL INVESTORS LP | Added | +854.9k |
| UBS Group AG | Added | +824.9k |
| Hill City Capital, LP | Added | +795.0k |
| FMR LLC | Added | +776.5k |
| Pictet Asset Management Holding SA | Added | +623.0k |
| SUSQUEHANNA ADVISORS GROUP, INC. | New | +600.0k |
| JANE STREET GROUP, LLC | Added | +519.5k |
Biggest sellers
| D. E. Shaw & Co., Inc. | Reduced | -1.7m |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | -854.3k |
| JPMORGAN CHASE & CO | Reduced | -613.2k |
| Demars Financial Group, LLC | Reduced | -606.5k |
| Polar Capital Holdings Plc | Sold out | -417.1k |
| HSBC HOLDINGS PLC | Reduced | -374.7k |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -349.3k |
| Invesco Ltd. | Reduced | -305.7k |
| Encompass Capital Advisors LLC | Reduced | -303.1k |
| Amundi | Reduced | -221.2k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.1bn6.9m shares |
| PEAK6 LLC | Added | $784.4m4.7m shares |
| CITADEL ADVISORS LLC | Added | $758.8m4.6m shares |
| JANE STREET GROUP, LLC | Added | $713.1m4.3m shares |
| Two Seas Capital LP | New | $470.8m2.8m shares |
| CITIGROUP INC | Added | $392.1m2.4m shares |
| IMC-Chicago, LLC | Added | $322.2m1.9m shares |
| SOROS FUND MANAGEMENT LLC | Added | $271.2m1.6m shares |
| Walleye Trading LLC | Added | $226.9m1.4m shares |
| GROUP ONE TRADING LLC | Added | $209.3m1.3m shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.1bn6.8m shares |
| JANE STREET GROUP, LLC | Added | $896.1m5.4m shares |
| CITADEL ADVISORS LLC | Added | $540.0m3.3m shares |
| Walleye Trading LLC | Added | $221.7m1.3m shares |
| IMC-Chicago, LLC | Added | $215.6m1.3m shares |
| D. E. Shaw & Co., Inc. | Reduced | $130.8m790.0k shares |
| GROUP ONE TRADING LLC | Added | $113.2m684.1k shares |
| SUSQUEHANNA ADVISORS GROUP, INC. | New | $99.3m600.0k shares |
| SIMPLEX TRADING, LLC | Added | $74.3m448.9k shares |
| LMR Partners LLP | Added | $69.3m418.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2026-07-28 | 11.8% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.3% |
| SUSQUEHANNA SECURITIES, LLC 13G · institution +1.7 pts · filed 2026-08-14 | 7.0% |
| Citadel Securities GP LLC 13G · passive investor +1.0 pts · filed 2026-10-15 | 6.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.3% |
| STATE STREET CORP 13G · institution new · filed 2026-08-07 | 5.2% |
| JANE STREET GROUP, LLC 13G · institution new · filed 2026-08-13 | 5.1% |
Fell to 5% or below in the last year: FMR LLC (1.7%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 6 | $7.3m | $7.0m |
| Q4 2023 | 0 | — | 3 | $1.8m | $1.8m |
| Q1 2024 | 0 | — | 6 | $8.2m | $7.1m |
| Q2 2024 | 0 | — | 12 | $26.1m | $20.5m |
| Q3 2024 | 0 | — | 2 | $2.4m | $2.4m |
| Q4 2024 | 0 | — | 1 | $714.9k | $714.9k |
| Q1 2025 | 0 | — | 10 | $5.2m | $4.1m |
| Q2 2025 | 0 | — | 4 | $3.5m | $3.5m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-03 | Buehler Patrick James Chief Product Officer | Sold plan | $278.5k1.9k shares |
| 2025-06-02 | Koralewski Michael Chief Supply Chain Officer | Sold plan | $466.9k3.0k shares |
| 2025-05-28 | Gloeckler Markus Chief Technology Officer | Sold plan | $1.5m9.6k shares |
| 2025-05-12 | Bradley Alexander R. Chief Financial Officer | Sold plan | $1.3m8.8k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.04% of their portfolio | 13.3m $2.2bn | Added +57.5k |
| BlackRock, Inc. 0.04% of their portfolio | 13.0m $2.1bn | Added +1.1m |
| STATE STREET CORP 0.03% of their portfolio | 5.3m $881.7m | Added +111.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.09% of their portfolio | 5.0m $833.2m | Added +4.3m |
| WELLINGTON MANAGEMENT GROUP LLP 0.09% of their portfolio | 3.0m $491.5m | Added +203.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.03% of their portfolio | 2.9m $471.9m | Added +26.5k |
| FMR LLC 0.03% of their portfolio | 2.8m $459.0m | Added +776.5k |
| UBS Group AG 0.08% of their portfolio | 2.3m $387.5m | Added +824.9k |
| VIKING GLOBAL INVESTORS LP 1.08% of their portfolio | 2.3m $375.1m | Added +854.9k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.90% of their portfolio | 2.2m $370.5m | Reduced -3.5k |
| SAMLYN CAPITAL, LLC 5.25% of their portfolio | 2.2m $362.1m | Added +445.4k |
| MORGAN STANLEY 0.02% of their portfolio | 2.2m $359.4m | Added +515.9k |
| Hill City Capital, LP 19.16% of their portfolio | 2.1m $355.9m | Added +795.0k |
| Invesco Ltd. 0.06% of their portfolio | 2.1m $351.2m | Reduced -305.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.07% of their portfolio | 2.0m $329.6m | Added +249.9k |
| Amundi 0.08% of their portfolio | 1.5m $229.9m | Reduced -221.2k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.19% of their portfolio | 1.4m $223.5m | Added +47.6k |
| DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio | 1.3m $221.4m | Reduced -64.7k |
| NORTHERN TRUST CORP 0.03% of their portfolio | 1.3m $217.7m | Added +19.9k |
| NORGES BANK 0.03% of their portfolio | 1.3m $212.6m | Added +31.0k |
| DEUTSCHE BANK AG\ 0.08% of their portfolio | 1.3m $210.3m | Reduced -135.3k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 1.1m $190.1m | Added +52.8k |
| CITADEL ADVISORS LLC 0.16% of their portfolio | 1.1m $181.8m | Added +910.8k |
| Capital Research Global Investors 0.03% of their portfolio | 1.0m $169.9m | Added +474.9k |
| MILLENNIUM MANAGEMENT LLC 0.15% of their portfolio | 1.0m $168.1m | Added +186.4k |
| Mirova US LLC 1.62% of their portfolio | 944.9k $156.4m | Added +50.3k |
| Nuveen, LLC 0.04% of their portfolio | 926.4k $153.4m | Added +19.0k |
| JANE STREET GROUP, LLC 0.24% of their portfolio | 884.8k $146.5m | Added +519.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.21% of their portfolio | 842.3k $139.4m | Reduced -112.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 794.0k $131.4m | Reduced -11.8k |
| Clean Energy Transition LLP 12.21% of their portfolio | 754.0k $124.8m | Added +16.5k |
| Legal & General Group Plc 0.03% of their portfolio | 724.7k $120.0m | Reduced -119.4k |
| Handelsbanken Fonder AB 0.42% of their portfolio | 706.6k $117.0m | Added +285.4k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 699.0k $115.7m | Reduced -613.2k |
| Pictet Asset Management Holding SA 0.12% of their portfolio | 685.0k $113.4m | Added +623.0k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 666.8k $110.4m | Reduced -22.7k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 654.7k $108.4m | Added +476.4k |
| Robeco Schweiz AG 2.41% of their portfolio | 631.7k $104.6m | Added +27.7k |
| SUSQUEHANNA ADVISORS GROUP, INC. 3.95% of their portfolio | 600.0k $99.3m | New |
| CANADA PENSION PLAN INVESTMENT BOARD 0.08% of their portfolio | 570.1k $94.4m | Reduced -188.9k |
| HSBC HOLDINGS PLC 0.06% of their portfolio | 545.1k $90.2m | Reduced -374.7k |
| DekaBank Deutsche Girozentrale 0.15% of their portfolio | 524.2k $84.0m | Added +20.0k |
| BARCLAYS PLC 0.03% of their portfolio | 406.9k $67.4m | Added +77.4k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.20% of their portfolio | 394.5k $65.3m | Added +36.0k |
| Atreides Management, LP 1.81% of their portfolio | 393.5k $65.1m | New |
| Erste Asset Management GmbH 0.50% of their portfolio | 388.1k $59.4m | Added +141.0k |
| STOREBRAND ASSET MANAGEMENT AS 0.18% of their portfolio | 366.9k $60.7m | Added +407 |
| Encompass Capital Advisors LLC 2.32% of their portfolio | 346.9k $57.4m | Reduced -303.1k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.14% of their portfolio | 335.5k $55.5m | Reduced -134.1k |
| Point72 Asset Management, L.P. 0.13% of their portfolio | 334.7k $55.4m | New |
| STRS OHIO 0.20% of their portfolio | 317.9k $52.6m | Added +132.4k |
| Swiss National Bank 0.03% of their portfolio | 308.4k $51.1m | Added +21.5k |
| ARIEL INVESTMENTS, LLC 0.58% of their portfolio | 307.3k $50.9m | New |
| PECONIC PARTNERS LLC 1.59% of their portfolio | 300.0k $49.7m | New |
| FIRST TRUST ADVISORS LP 0.04% of their portfolio | 293.6k $48.6m | Reduced -7.2k |
| Triodos Investment Management BV 3.40% of their portfolio | 274.1k $45.3m | Added +25.6k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 273.8k $45.3m | Reduced -204.1k |
| NATIONAL BANK OF CANADA /FI/ 0.05% of their portfolio | 257.8k $42.7m | Added +182.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 254.0k $42.0m | Reduced -349.3k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 248.7k $41.2m | Added +4.7k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.07% of their portfolio | 236.3k $39.1m | Reduced -2.6k |
| Vontobel Holding Ltd. 0.13% of their portfolio | 233.8k $38.7m | Added +44.5k |
| CIBC Private Wealth Group LLC 0.06% of their portfolio | 217.0k $35.9m | Added +106.5k |
| CITIGROUP INC 0.02% of their portfolio | 215.7k $35.7m | Reduced -177.6k |
| RHUMBLINE ADVISERS 0.03% of their portfolio | 206.9k $34.3m | Added +4.6k |
| IMC-Chicago, LLC 0.85% of their portfolio | 205.0k $33.9m | Added +172.9k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.32% of their portfolio | 203.1k $33.6m | Added +41.9k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.03% of their portfolio | 201.2k $33.3m | Added +2.8k |
| Merewether Investment Management, LP 0.95% of their portfolio | 198.6k $32.9m | Added +147.2k |
| CIBC WORLD MARKETS CORP 0.22% of their portfolio | 197.3k $32.7m | Added +184.6k |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 186.2k $29.9m | Reduced -191.4k |
| TRILLIUM ASSET MANAGEMENT, LLC 0.82% of their portfolio | 184.2k $30.5m | Added +4.0k |
| ABN AMRO Bank N.V. 0.40% of their portfolio | 184.2k $30.7m | Added +8.5k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 184.0k $30.5m | Reduced -1.7m |
| Tidal Investments LLC 0.19% of their portfolio | 179.8k $29.8m | Added +158.1k |
| SG Americas Securities, LLC 0.13% of their portfolio | 179.1k $29.7m | Added +167.6k |
| Raiffeisen Bank International AG 0.40% of their portfolio | 177.6k $27.2m | Reduced -3.3k |
| SORA INVESTORS LLC 2.58% of their portfolio | 172.9k $28.6m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.03% of their portfolio | 171.0k $28.3m | Reduced -854.3k |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 168.8k $27.4m | Reduced -21.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 168.3k $27.9m | Added +487 |
| SOROS FUND MANAGEMENT LLC 0.47% of their portfolio | 166.1k $27.5m | Reduced -141.1k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 162.3k $26.9m | Added +12.0k |
| TODD ASSET MANAGEMENT LLC 0.57% of their portfolio | 158.6k $26.2m | Reduced -1.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 158.1k $26.2m | Added +37.6k |
| Swedbank AB 0.03% of their portfolio | 156.5k $25.9m | First filing |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 153.6k $25.4m | Added +10.6k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 151.6k $25.1m | Reduced -92.6k |
| Assenagon Asset Management S.A. 0.04% of their portfolio | 145.1k $24.0m | Reduced -39.2k |
| Employees Provident Fund Board 0.20% of their portfolio | 142.7k $23.6m | Added +5.7k |
| Aberdeen Group plc 0.04% of their portfolio | 142.2k $23.5m | Added +15.5k |
| Robeco Institutional Asset Management B.V. 0.04% of their portfolio | 141.5k $23.4m | Added +15.2k |
| Bank Julius Baer & Co. Ltd, Zurich 0.07% of their portfolio | 140.7k $23.3m | Added +4.0k |
| E. Ohman J:or Asset Management AB 0.58% of their portfolio | 140.5k $23.3m | Reduced -103.7k |
| California Public Employees Retirement System 0.01% of their portfolio | 138.0k $22.8m | Added +3.8k |
| Avalon Trust Co 1.61% of their portfolio | 133.4k $22.1m | Reduced -6.8k |
| Tredje AP-fonden 0.17% of their portfolio | 129.1k $21.4m | Added +31.2k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.02% of their portfolio | 125.0k $20.7m | Added +39.0k |
| OFI INVEST ASSET MANAGEMENT 0.42% of their portfolio | 120.9k $17.1m | Reduced -9.0k |
| Walleye Trading LLC 0.48% of their portfolio | 117.8k $19.5m | Reduced -81.2k |