Quick Takeaways
- FSLR - FIRST SOLAR, INC. has 26 insiders with reported activity on this page.
- Net insider value flow over the last year: -$38,000,472.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 26 Insiders of FIRST SOLAR, INC.
- Symbol
- FSLR on Nasdaq
- Location
- Phoenix, AZ
What Changed
- Buy value: ; sell value: $38,000,472.
- Net share flow: -182,923.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$38,000,472.
Buys
$0
Shares: 0
Insiders: 0
Sells
$38,000,472
Shares: 182,923
Insiders: 13
Net
-$38,000,472
Shares: -182,923
Insiders: -13
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 76,562 | $0 | $15,042,183 | -$15,042,183 |
| 3-6 | 0 | 48,912 | $0 | $12,971,434 | -$12,971,434 |
| 6-9 | 0 | 32,679 | $0 | $6,152,563 | -$6,152,563 |
| 9-12 | 0 | 24,770 | $0 | $3,834,292 | -$3,834,292 |
FIRST SOLAR, INC. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael J. Ahearn | Director | $29,675,989 | Mixed | 31 Mar 2026 | ||
| Mark R. Widmar | Chief Executive Officer, Director | $21,933,146 | -$8,567,622 | -28% | Mixed | 13 Mar 2026 |
| POST WILLIAM J | Director | $7,095,529 | Mixed | 31 Mar 2026 | ||
| Caroline Stockdale | Chief People and Comm. Officer | $7,053,248 | -$588,717 | -7.7% | Mixed | 13 Mar 2026 |
| George A. Hambro | Director | $6,655,740 | Mixed | 28 Jun 2024 | ||
| Alexander R. Bradley | Chief Financial Officer | $6,458,534 | -$5,218,393 | -45% | Mixed | 13 Mar 2026 |
| Sharon L. Allen | Director | $4,367,584 | Mixed | 30 Jun 2022 | ||
| Paul H. Stebbins | Director | $4,108,364 | -$1,836,804 | -31% | Mixed | 31 Mar 2026 |
| Georges Antoun | Chief Commercial Officer | $3,997,523 | -$10,496,118 | -72% | Mixed | 13 Mar 2026 |
| Sweeney Michael T. | Director | $3,683,865 | -$1,219,995 | -25% | Mixed | 31 Mar 2026 |
| R. Craig Kennedy | Director | $3,668,080 | Mixed | 28 Jun 2024 | ||
| Michael Koralewski | Chief Supply Chain Officer | $3,050,471 | -$924,388 | -23% | Mixed | 13 Mar 2026 |
| Richard D. Chapman | Director | $3,038,100 | Mixed | 28 Jun 2024 | ||
| Molly Joseph | Director | $2,588,122 | Mixed | 30 Jun 2025 | ||
| Markus Gloeckler | Chief Technology Officer | $2,306,189 | -$3,195,893 | -58% | Mixed | 13 Mar 2026 |
| Jason E. Dymbort | General Counsel and Secretary | $2,194,568 | -$3,155,319 | -59% | Mixed | 13 Mar 2026 |
| Kuntal Kumar Verma | Chief Manufacturing Officer | $2,103,853 | -$1,393,279 | -40% | Mixed | 15 Apr 2026 |
| Patrick James Buehler | Chief Product Officer | $1,537,493 | -$1,001,967 | -39% | Mixed | 13 Mar 2026 |
| Anita M. George | Director | $1,310,068 | Mixed | 31 Mar 2026 | ||
| Norman L. Wright | Director | $1,250,246 | Mixed | 31 Mar 2026 | ||
| Lisa A. Kro | Director | $1,143,142 | Mixed | 31 Mar 2026 | ||
| Kathryn A. Hollister | Director | $500,953 | Mixed | 30 Jun 2022 | ||
| Venkata S. M. Renduchintala | Director | $498,949 | Mixed | 31 Mar 2026 | ||
| Samantha L. Sloan | EVP, Corporate Affairs | $337,946 | -$129,909 | -28% | Filing P/S | 13 Mar 2026 |
| Byron Michael Jeffers | VP - Global Controller and CAO | $143,314 | Mixed | 12 Aug 2024 | ||
| Nathan B. Theurer | VP - Global Controller and CAO | $34,909 | -$272,069 | -89% | Mixed | 13 Mar 2026 |
Top shareholders of FIRST SOLAR, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
13%
|
13,444,103
|
$3,512,003,027 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
12%
|
12,611,740
|
$3,294,564,916 | — | 31 Dec 2025 | |
| FMR LLC |
13F
13D/G
|
Company |
6.1%
from 13D/G
|
6,534,800
|
$1,707,085,810 | — | 31 Dec 2025 | |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
|
Capital Ventures International |
7.9%
|
8,466,499
|
$1,375,298,098 | +$341,687,992 | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.9%
|
5,261,896
|
$1,374,565,092 | — | 31 Dec 2025 | |
| Citadel Securities GP LLC |
13D/G
|
Kenneth Griffin |
5.3%
|
5,681,838
|
$922,957,765 | $0 | 30 Jun 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.7%
|
2,919,991
|
$761,395,794 | — | 31 Dec 2025 | |
| Farhad Fred Ebrahimi |
13D/G
|
— |
5%
|
5,296,289
|
$726,862,702 | $0 | 21 Mar 2025 | |
| MORGAN STANLEY |
13F
|
Company |
2.4%
|
2,521,347
|
$658,651,907 | — | 31 Dec 2025 | |
| Amundi |
13F
|
Individual |
2.1%
|
2,215,461
|
$578,791,421 | — | 31 Dec 2025 | |
| Hill City Capital, LP |
13F
|
Company |
2%
|
2,090,390
|
$546,072,580 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.8%
|
1,944,526
|
$507,968,528 | — | 31 Dec 2025 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
1.7%
|
1,853,641
|
$484,242,000 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13D/G
13F
|
Company |
3.2%
|
3,455,693
|
$474,259,307 | -$277,168,669 | 31 Jan 2025 | |
| NORGES BANK |
13F
|
Company |
1.4%
|
1,500,746
|
$392,039,878 | — | 31 Dec 2025 | |
| SCHRODER INVESTMENT MANAGEMENT GROUP |
13F
|
Company |
1.3%
|
1,427,105
|
$372,802,640 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
1.3%
|
1,419,732
|
$370,876,591 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.3%
|
1,386,880
|
$362,294,662 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
1.2%
|
1,261,472
|
$329,534,331 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.2%
|
1,249,171
|
$326,342,297 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
1.1%
|
1,187,792
|
$310,286,904 | — | 31 Dec 2025 | |
| Clean Energy Transition LLP |
13F
|
Company |
1.1%
|
1,148,982
|
$300,148,568 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
1.1%
|
1,125,320
|
$293,967,344 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.84%
|
899,866
|
$235,071,864 | — | 31 Dec 2025 | |
| Mirova US LLC |
13F
|
Company |
0.83%
|
889,077
|
$232,253,585 | — | 31 Dec 2025 | |
| Pictet Asset Management Holding SA |
13F
|
Company |
0.83%
|
880,269
|
$229,977,739 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.76%
|
809,217
|
$211,392,000 | — | 31 Dec 2025 | |
| SAMLYN CAPITAL, LLC |
13F
|
Company |
0.74%
|
792,028
|
$206,901,475 | — | 31 Dec 2025 | |
| Polar Capital Holdings Plc |
13F
|
Company |
0.72%
|
766,028
|
$200,109,494 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.67%
|
709,861
|
$185,436,989 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.66%
|
705,131
|
$184,201,260 | — | 31 Dec 2025 | |
| Capital Research Global Investors |
13F
|
Company |
0.66%
|
699,462
|
$182,720,458 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.6%
|
641,532
|
$167,587,430 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.58%
|
615,950
|
$160,904,621 | — | 31 Dec 2025 | |
| Handelsbanken Fonder AB |
13F
|
Company |
0.56%
|
597,970
|
$156,208,000 | — | 31 Dec 2025 | |
| HSBC HOLDINGS PLC |
13F
|
Company |
0.53%
|
566,927
|
$148,244,742 | — | 31 Dec 2025 | |
| Robeco Schweiz AG |
13F
|
Company |
0.51%
|
539,078
|
$140,823,346 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.45%
|
481,334
|
$125,738,885 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.43%
|
461,531
|
$120,565,917 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.42%
|
450,335
|
$117,640,000 | — | 31 Dec 2025 | |
| Castle Hook Partners LP |
13F
|
Company |
0.42%
|
443,731
|
$115,915,849 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.38%
|
402,871
|
$105,241,919 | — | 31 Dec 2025 | |
| Deutsche Girozentrale DekaBank |
13F
|
Individual |
0.49%
|
524,203
|
$103,750,000 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.33%
|
354,746
|
$92,670,297 | — | 31 Dec 2025 | |
| Zurcher Kantonalbank (Zurich Cantonalbank) |
13F
|
Company |
0.32%
|
344,599
|
$90,019,597 | — | 31 Dec 2025 | |
| Merewether Investment Management, LP |
13F
|
Company |
0.31%
|
325,100
|
$84,925,873 | — | 31 Dec 2025 | |
| AMF Tjanstepension AB |
13F
|
Company |
0.3%
|
323,367
|
$84,473,161 | — | 31 Dec 2025 | |
| Vontobel Holding Ltd. |
13F
|
Company |
0.28%
|
299,084
|
$78,129,714 | — | 31 Dec 2025 | |
| PECONIC PARTNERS LLC |
13F
|
Company |
0.28%
|
295,000
|
$77,062,850 | — | 31 Dec 2025 | |
| Two Seas Capital LP |
13F
|
Company |
0.27%
|
284,259
|
$74,256,979 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for FIRST SOLAR, INC.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -6.07% | $120,330 | $210.00 | -573 | 8,863 | 15 Apr 2026 | Direct |
| Paul H. Stebbins | FSLR | Common Stock | Award | 1.73% | 267 | 15,727 | 31 Mar 2026 | By Stebbins Family Trust | ||
| Post William J | FSLR | Common Stock | Award | 0.99% | 267 | 27,162 | 31 Mar 2026 | By Post Family Trust | ||
| Sweeney Michael T. | FSLR | Common Stock | Award | 1.93% | 267 | 14,102 | 31 Mar 2026 | Direct | ||
| Lisa A. Kro | FSLR | Common Stock | Award | 6.5% | 267 | 4,376 | 31 Mar 2026 | By Trust | ||
| Norman L. Wright | FSLR | Common Stock | Award | 5.91% | 267 | 4,786 | 31 Mar 2026 | Direct | ||
| Anita M. George | FSLR | Common Stock | Award | 5.62% | 267 | 5,015 | 31 Mar 2026 | Direct | ||
| Venkata S. M. Renduchintala | FSLR | Common Stock | Award | 16.2% | 267 | 1,910 | 31 Mar 2026 | Direct | ||
| Michael J. Ahearn | FSLR | Common Stock | Award | 0.57% | 374 | 65,744 | 31 Mar 2026 | Direct | ||
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -1.87% | $35,915 | $199.53 | -180 | 9,436 | 17 Mar 2026 | Direct |
| Nathan B. Theurer | FSLR | Common Stock | Sale | -100% | $19,155 | $199.53 | -96 | 0 | 17 Mar 2026 | Direct |
| Jason E. Dymbort | FSLR | Common Stock | Sale | -47.8% | $1,800,972 | $199.62 | -9,022 | 9,850 | 17 Mar 2026 | Direct |
| Alexander R. Bradley | FSLR | Common Stock | Sale | -32% | $2,820,728 | $199.97 | -14,106 | 30,000 | 17 Mar 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -1.85% | $388,950 | $200.80 | -1,937 | 102,798 | 16 Mar 2026 | Direct |
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -3.92% | $78,714 | $200.80 | -392 | 9,616 | 16 Mar 2026 | Direct |
| Nathan B. Theurer | FSLR | Common Stock | Sale | -26.7% | $7,028 | $200.80 | -35 | 96 | 16 Mar 2026 | Direct |
| Caroline Stockdale | FSLR | Common Stock | Sale | -0.97% | $67,268 | $200.80 | -335 | 34,060 | 16 Mar 2026 | Direct |
| Samantha L. Sloan | FSLR | Common Stock | Sale | -6.66% | $24,096 | $200.80 | -120 | 1,683 | 16 Mar 2026 | Direct |
| Michael Koralewski | FSLR | Common Stock | Sale | -1.81% | $53,011 | $200.80 | -264 | 14,339 | 16 Mar 2026 | Direct |
| Markus Gloeckler | FSLR | Common Stock | Sale | -3.43% | $73,894 | $200.80 | -368 | 10,348 | 16 Mar 2026 | Direct |
| Jason E. Dymbort | FSLR | Common Stock | Sale | -1.86% | $71,886 | $200.80 | -358 | 18,872 | 16 Mar 2026 | Direct |
| Patrick James Buehler | FSLR | Common Stock | Sale | -2.48% | $36,144 | $200.80 | -180 | 7,088 | 16 Mar 2026 | Direct |
| Alexander R. Bradley | FSLR | Common Stock | Sale | -1.32% | $118,472 | $200.80 | -590 | 44,106 | 16 Mar 2026 | Direct |
| Georges Antoun | FSLR | Common Stock | Sale | -1.26% | $49,196 | $200.80 | -245 | 19,126 | 16 Mar 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Options Exercise | 4.86% | 4,856 | 104,735 | 13 Mar 2026 | Direct | ||
| Mark R. Widmar | FSLR | Restricted Stock Units | Options Exercise | -50% | -4,856 | 4,856 | 13 Mar 2026 | Direct | ||
| Kuntal Kumar Verma | FSLR | Common Stock | Options Exercise | 9.97% | 907 | 10,008 | 13 Mar 2026 | Direct | ||
| Kuntal Kumar Verma | FSLR | Restricted Stock Units | Options Exercise | -50% | -907 | 907 | 13 Mar 2026 | Direct | ||
| Nathan B. Theurer | FSLR | Common Stock | Options Exercise | 131 | 131 | 13 Mar 2026 | Direct | |||
| Nathan B. Theurer | FSLR | Restricted Stock Units | Options Exercise | -50.2% | -131 | 130 | 13 Mar 2026 | Direct | ||
| Caroline Stockdale | FSLR | Common Stock | Options Exercise | 2.38% | 800 | 34,395 | 13 Mar 2026 | Direct | ||
| Caroline Stockdale | FSLR | Restricted Stock Units | Options Exercise | -50% | -800 | 800 | 13 Mar 2026 | Direct | ||
| Samantha L. Sloan | FSLR | Common Stock | Options Exercise | 18.4% | 280 | 1,803 | 13 Mar 2026 | Direct | ||
| Samantha L. Sloan | FSLR | Restricted Stock Units | Options Exercise | -50% | -280 | 280 | 13 Mar 2026 | Direct | ||
| Michael Koralewski | FSLR | Common Stock | Options Exercise | 4.58% | 640 | 14,603 | 13 Mar 2026 | Direct | ||
| Michael Koralewski | FSLR | Restricted Stock Units | Options Exercise | -50% | -640 | 640 | 13 Mar 2026 | Direct | ||
| Markus Gloeckler | FSLR | Common Stock | Options Exercise | 8.66% | 854 | 10,716 | 13 Mar 2026 | Direct | ||
| Markus Gloeckler | FSLR | Restricted Stock Units | Options Exercise | -50% | -854 | 853 | 13 Mar 2026 | Direct | ||
| Jason E. Dymbort | FSLR | Common Stock | Options Exercise | 4.65% | 854 | 19,230 | 13 Mar 2026 | Direct | ||
| Jason E. Dymbort | FSLR | Restricted Stock Units | Options Exercise | -50% | -854 | 853 | 13 Mar 2026 | Direct | ||
| Patrick James Buehler | FSLR | Common Stock | Options Exercise | 6.24% | 427 | 7,268 | 13 Mar 2026 | Direct | ||
| Patrick James Buehler | FSLR | Restricted Stock Units | Options Exercise | -50% | -427 | 427 | 13 Mar 2026 | Direct | ||
| Alexander R. Bradley | FSLR | Common Stock | Options Exercise | 3.33% | 1,441 | 44,696 | 13 Mar 2026 | Direct | ||
| Alexander R. Bradley | FSLR | Restricted Stock Units | Options Exercise | -50% | -1,441 | 1,440 | 13 Mar 2026 | Direct | ||
| Georges Antoun | FSLR | Common Stock | Options Exercise | 3.13% | 587 | 19,371 | 13 Mar 2026 | Direct | ||
| Georges Antoun | FSLR | Restricted Stock Units | Options Exercise | -50% | -587 | 587 | 13 Mar 2026 | Direct | ||
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -4.29% | $79,846 | $195.70 | -408 | 9,101 | 10 Mar 2026 | Direct |
| Nathan B. Theurer | FSLR | Common Stock | Sale | -100% | $63,407 | $195.70 | -324 | 0 | 10 Mar 2026 | Direct |
| Georges Antoun | FSLR | Common Stock | Sale | -4.04% | $150,575 | $190.36 | -791 | 18,784 | 09 Mar 2026 | Direct |
| Alexander R. Bradley | FSLR | Common Stock | Sale | -3.9% | $334,272 | $190.36 | -1,756 | 43,255 | 09 Mar 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.