Comparable stake leader
BlackRock, Inc.
SEC ownership of FIRST SOLAR, INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001274494.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
04 Aug 2026
- Public ticker
- FSLR on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
04 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001274494
- Issuer location
- Phoenix, AZ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of FIRST SOLAR, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
04 Aug 2026
13F
13D/G
3/4/5
Lead comparable stake: 12%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 12%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
12%
VANGUARD CAPITAL MANAGEMENT LLC
7.3%
SUSQUEHANNA SECURITIES, LLC
7%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.3%
Citadel Securities GP LLC
5.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
12%
from 13D/G
|
$3,310,298,243
14,029,065 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
7.3%
from 13D/G
|
$1,613,244,598
6,836,941 shares
|
— | 30 Jun 2026 |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
G1 Execution Services, LLC
|
7%
|
$1,661,821,128
7,518,532 shares
|
+$397,554,504 | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
5.3%
from 13D/G
|
$1,330,447,718
5,638,446 shares
|
— | 30 Jun 2026 |
| Citadel Securities GP LLC |
13D/G
Kenneth Griffin
|
5.3%
|
$922,957,765
5,681,838 shares
|
$0 | 30 Jun 2025 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
5.2%
from 13D/G
|
$1,315,719,095
5,576,026 shares
|
— | 30 Jun 2026 |
| JANE STREET GROUP, LLC |
13D/G
|
5.1%
|
$1,216,326,764
5,502,994 shares
|
$0 | 30 Jun 2026 |
| Farhad Fred Ebrahimi |
13D/G
|
5%
|
$726,862,702
5,296,289 shares
|
$0 | 21 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$43,161,680.
Buys
$0
Insiders: 0
Sells
$43,161,680
Insiders: 13
Net
-$43,161,680
Shares: -186,960
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 186,960
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 18,081 | $0 | $4,363,085 | -$4,363,085 |
| 3-6 | 0 | 119,827 | $0 | $25,800,775 | -$25,800,775 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 49,052 | $0 | $12,997,820 | -$12,997,820 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 27 reporting-owner rows connected to FIRST SOLAR, INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
27
Largest Forms 3/4/5 holder
Mark R. Widmar
Net 12M change
-$43,161,680
Latest report
14 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Mark R. Widmar | Chief Executive Officer, Director | $23,908,683 | -$9,006,225 | -27% | Mixed | 22 May 2026 |
| Michael J. Ahearn | Director | $16,359,106 | Median | 04 Aug 2026 | ||
| Alexander R. Bradley | Chief Financial Officer | $7,007,762 | -$4,006,656 | -36% | Mixed | 04 May 2026 |
| Caroline Stockdale | Chief People and Comm. Officer | $6,771,075 | -$3,574,289 | -35% | Mixed | 28 May 2026 |
| George A. Hambro | Director | $6,655,740 | Mixed | 28 Jun 2024 | ||
| POST WILLIAM J | Director | $5,401,965 | Mixed | 30 Jun 2026 | ||
| Georges Antoun | Chief Commercial Officer | $4,451,941 | -$10,618,164 | -70% | Mixed | 04 May 2026 |
| Sharon L. Allen | Director | $4,367,584 | Mixed | 30 Jun 2022 | ||
| R. Craig Kennedy | Director | $3,668,080 | Mixed | 28 Jun 2024 | ||
| Paul H. Stebbins | Director | $3,146,297 | -$1,836,804 | -37% | Mixed | 30 Jun 2026 |
| Richard D. Chapman | Director | $3,038,100 | Mixed | 28 Jun 2024 | ||
| Sweeney Michael T. | Director | $2,825,749 | -$1,219,995 | -30% | Mixed | 30 Jun 2026 |
| Molly Joseph | Director | $2,588,122 | Mixed | 30 Jun 2025 | ||
| Michael Koralewski | Chief Supply Chain Officer | $1,890,650 | -$2,054,441 | -52% | Mixed | 03 Aug 2026 |
| Markus Gloeckler | Chief Technology Officer | $1,875,527 | -$2,760,139 | -60% | Mixed | 03 Aug 2026 |
| Jason E. Dymbort | General Counsel and Secretary | $1,630,824 | -$3,823,196 | -70% | Mixed | 11 Aug 2026 |
| Kuntal Kumar Verma | Chief Manufacturing Officer | $1,484,373 | -$2,550,529 | -63% | Mixed | 21 May 2026 |
| Patrick James Buehler | Chief Product Officer | $1,444,835 | -$1,392,159 | -49% | Mixed | 02 Jun 2026 |
| Anita M. George | Director | $1,020,031 | Mixed | 30 Jun 2026 | ||
| Norman L. Wright | Director | $988,075 | Mixed | 30 Jun 2026 |
Recent insider transactions for FIRST SOLAR, INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Samantha L. Sloan | FSLR | Common Stock | Sale | -5.92% | $28,315 | $222.95 | -127 | 2,018 | 17 Aug 2026 | Direct |
| Samantha L. Sloan | FSLR | Common Stock | Options Exercise | 25.6% | 437 | 2,145 | 14 Aug 2026 | Direct | ||
| Samantha L. Sloan | FSLR | Restricted Stock Units | Options Exercise | -25% | -437 | 1,314 | 14 Aug 2026 | Direct | ||
| Jason E. Dymbort | FSLR | Common Stock | Sale | -39.7% | $922,706 | $249.38 | -3,700 | 5,624 | 11 Aug 2026 | Direct |
| Markus Gloeckler | FSLR | Common Stock | Sale | -11.1% | $205,592 | $248.00 | -829 | 6,642 | 04 Aug 2026 | Direct |
| Michael J. Ahearn | FSLR | Common Stock | Gift | -40.3% | -44,584 | 66,057 | 04 Aug 2026 | Direct | ||
| Markus Gloeckler | FSLR | Common Stock | Sale | -31.4% | $749,902 | $218.95 | -3,425 | 7,471 | 03 Aug 2026 | Direct |
| Michael Koralewski | FSLR | Common Stock | Sale | -47.8% | $1,550,570 | $221.51 | -7,000 | 7,642 | 03 Aug 2026 | Direct |
| Michael J. Ahearn | FSLR | Common Stock | Award | 0.48% | 313 | 66,057 | 30 Jun 2026 | Direct | ||
| Anita M. George | FSLR | Common Stock | Tax liability | -1.28% | -67 | 5,171 | 30 Jun 2026 | Direct | ||
| Anita M. George | FSLR | Common Stock | Award | 4.45% | 223 | 5,238 | 30 Jun 2026 | Direct | ||
| Lisa A. Kro | FSLR | Common Stock | Award | 5.1% | 223 | 4,599 | 30 Jun 2026 | By Trust | ||
| Curtis A. Morgan | FSLR | Common Stock | Award | 223 | 223 | 30 Jun 2026 | Direct | |||
| Post William J | FSLR | Common Stock | Award | 0.82% | 223 | 27,385 | 30 Jun 2026 | By Post Family Trust | ||
| Paul H. Stebbins | FSLR | Common Stock | Award | 1.42% | 223 | 15,950 | 30 Jun 2026 | By Stebbins Family Trust | ||
| Sweeney Michael T. | FSLR | Common Stock | Award | 1.58% | 223 | 14,325 | 30 Jun 2026 | Direct | ||
| Venkata S. M. Renduchintala | FSLR | Common Stock | Award | 11.7% | 223 | 2,133 | 30 Jun 2026 | Direct | ||
| Norman L. Wright | FSLR | Common Stock | Award | 4.66% | 223 | 5,009 | 30 Jun 2026 | Direct | ||
| Patrick James Buehler | FSLR | Common Stock | Sale | -40.5% | $906,000 | $302.00 | -3,000 | 4,406 | 02 Jun 2026 | Direct |
| Caroline Stockdale | FSLR | Common Stock | Sale | -30.9% | $2,929,077 | $275.60 | -10,628 | 23,792 | 28 May 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -5.97% | $1,397,344 | $268.98 | -5,195 | 81,861 | 26 May 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -2.22% | $502,459 | $254.15 | -1,977 | 87,056 | 22 May 2026 | Direct |
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -10.5% | $145,500 | $250.00 | -582 | 4,967 | 21 May 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -5.13% | $1,191,378 | $247.43 | -4,815 | 89,033 | 21 May 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -1.37% | $312,026 | $240.02 | -1,300 | 93,848 | 13 May 2026 | Direct |
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -20.8% | $349,200 | $240.00 | -1,455 | 5,549 | 13 May 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -9.45% | $2,314,888 | $233.21 | -9,926 | 95,148 | 11 May 2026 | Direct |
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -24% | $500,360 | $225.79 | -2,216 | 7,004 | 11 May 2026 | Direct |
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -2.85% | $58,903 | $218.16 | -270 | 9,220 | 06 May 2026 | Direct |
| Nathan B. Theurer | FSLR | Common Stock | Sale | -100% | $6,763 | $218.16 | -31 | 0 | 06 May 2026 | Direct |
| Jason E. Dymbort | FSLR | Common Stock | Sale | -2.39% | $49,740 | $218.16 | -228 | 9,324 | 06 May 2026 | Direct |
| Georges Antoun | FSLR | Common Stock | Sale | -2.76% | $122,047 | $215.63 | -566 | 19,918 | 05 May 2026 | Direct |
| Alexander R. Bradley | FSLR | Common Stock | Sale | -1.6% | $107,384 | $215.63 | -498 | 30,712 | 05 May 2026 | Direct |
| Michael Koralewski | FSLR | Common Stock | Sale | -1.45% | $46,360 | $215.63 | -215 | 14,642 | 05 May 2026 | Direct |
| Patrick James Buehler | FSLR | Common Stock | Sale | -3.08% | $50,673 | $215.63 | -235 | 7,406 | 05 May 2026 | Direct |
| Jason E. Dymbort | FSLR | Common Stock | Sale | -3.78% | $88,193 | $215.63 | -409 | 10,409 | 05 May 2026 | Direct |
| Markus Gloeckler | FSLR | Common Stock | Sale | -3.71% | $90,565 | $215.63 | -420 | 10,896 | 05 May 2026 | Direct |
| Samantha L. Sloan | FSLR | Common Stock | Sale | -1.1% | $4,097 | $215.63 | -19 | 1,708 | 05 May 2026 | Direct |
| Caroline Stockdale | FSLR | Common Stock | Sale | -0.76% | $56,495 | $215.63 | -262 | 34,420 | 05 May 2026 | Direct |
| Nathan B. Theurer | FSLR | Common Stock | Sale | -29.6% | $2,803 | $215.63 | -13 | 31 | 05 May 2026 | Direct |
| Kuntal Kumar Verma | FSLR | Common Stock | Sale | -4.8% | $103,287 | $215.63 | -479 | 9,490 | 05 May 2026 | Direct |
| Mark R. Widmar | FSLR | Common Stock | Sale | -1.43% | $329,051 | $215.63 | -1,526 | 105,074 | 05 May 2026 | Direct |
| Georges Antoun | FSLR | Common Stock | Options Exercise | 7.1% | 1,358 | 20,484 | 04 May 2026 | Direct | ||
| Georges Antoun | FSLR | Restricted Stock Units | Options Exercise | -25% | -1,358 | 4,074 | 04 May 2026 | Direct | ||
| Alexander R. Bradley | FSLR | Common Stock | Options Exercise | 4.03% | 1,210 | 31,210 | 04 May 2026 | Direct | ||
| Alexander R. Bradley | FSLR | Restricted Stock Units | Options Exercise | -25% | -1,210 | 3,630 | 04 May 2026 | Direct | ||
| Michael Koralewski | FSLR | Common Stock | Options Exercise | 3.61% | 518 | 14,857 | 04 May 2026 | Direct | ||
| Michael Koralewski | FSLR | Restricted Stock Units | Options Exercise | -25% | -518 | 1,556 | 04 May 2026 | Direct | ||
| Patrick James Buehler | FSLR | Common Stock | Options Exercise | 7.8% | 553 | 7,641 | 04 May 2026 | Direct | ||
| Patrick James Buehler | FSLR | Restricted Stock Units | Options Exercise | -25% | -553 | 1,660 | 04 May 2026 | Direct |
* marks a reported price that did not pass the local price check.