FSLR
FIRST SOLAR, INC. · Technology · Market cap $18.8B
Insiders sold $3.8M net in the last 90 days ·4 sellers, 0 buyers· 6 of 7 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 2, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$43.4M
reported sales (SEC code S)
Unique Insiders
13
in the rolling window
Latest filing
Oct 2, 2026
Gloeckler Markus
FIRST SOLAR, INC. (FSLR) has 106 SEC Form 4 filings (283 transaction rows) in the rolling window, disclosed by 13 distinct insiders. Most recent filing: Oct 2, 2026.
Inside the rolling window, 13 insiders at FIRST SOLAR, INC. reported no open-market purchases and 77 open-market sales totaling $43.4M. The most active filer is Chief Manufacturing Officer Verma Kuntal Kumar with 12 filings. Insiders have net sold $15.5M over the trailing 6 months. The most recent open-market filing is a sale of 800 shares by Chief Technology Officer Gloeckler Markus, dated Oct 1, 2026, worth $139K.
- Industry:Solar
- CEO:Mark R. Widmar
- Employees:7,900
- HQ:Phoenix, AZ, US
- IPO:2006-11-17
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Technology Officer | Sale | 800 | $139K | Oct 2 | +0.1% | SEC ↗ | |
| Chief Technology Officer | Sale | 800 | $160K | Sep 2 | -13.7% | SEC ↗ | |
Sloan Samantha L.First in 3 months | EVP, Corporate Affairs | Sale | 127 | $28K | Aug 18 | -20.5% | SEC ↗ |
Dymbort Jason E.First in 3 months | General Counsel and Secretary | Sale | 3,700 | $923K | Aug 12 | -22.9% | SEC ↗ |
Gloeckler MarkusFirst in 3 months | Chief Technology Officer | Sale | 3,425 | $750K | Aug 5 | -26.2% | SEC ↗ |
Gloeckler MarkusFirst in 3 months | Chief Technology Officer | Sale | 829 | $206K | Aug 5 | -26.2% | SEC ↗ |
Koralewski MichaelFirst in 3 months | Chief Supply Chain Officer | Sale | 7,000 | $1.6M | Aug 5 | -26.2% | SEC ↗ |
| Chief Product Officer | Sale | 3,000 | $906K | Jun 3 | -45.1% | SEC ↗ | |
| Chief People and Comm. Officer | Sale | 10,628 | $2.9M | Jun 1 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 1,977 | $502K | May 27 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 5,195 | $1.4M | May 27 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 4,815 | $1.2M | May 22 | — | SEC ↗ | |
| Chief Manufacturing Officer | Sale | 582 | $146K | May 22 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 9,926 | $2.3M | May 13 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 1,300 | $312K | May 13 | — | SEC ↗ | |
| Chief Manufacturing Officer | Sale | 2,216 | $500K | May 13 | — | SEC ↗ | |
| Chief Manufacturing Officer | Sale | 1,455 | $349K | May 13 | — | SEC ↗ | |
| Chief Manufacturing Officer | Sale | 270 | $59K | May 8 | — | SEC ↗ | |
| VP - Global Controller and CAO | Sale | 31 | $7K | May 8 | — | SEC ↗ | |
| General Counsel and Secretary | Sale | 228 | $50K | May 8 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 498 | $107K | May 5 | — | SEC ↗ | |
| Chief Supply Chain Officer | Sale | 215 | $46K | May 5 | — | SEC ↗ | |
| Chief Product Officer | Sale | 235 | $51K | May 5 | — | SEC ↗ | |
| General Counsel and Secretary | Sale | 409 | $88K | May 5 | — | SEC ↗ | |
| Chief Technology Officer | Sale | 420 | $91K | May 5 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading FSLR 33 all-time
- RSen. John BoozmanPurchase$1,001 - $15,0002026-08-13
- DRep. Ro KhannaPurchase$1,001 - $15,0002026-08-10
- DRep. Gilbert Ray CisnerosSale$1,001 - $15,0002026-02-10
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002026-01-09
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002026-01-09
- DRep. Ro KhannaSale$1,001 - $15,0002026-01-29
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does FSLR have?
FIRST SOLAR, INC. (FSLR) has 106 SEC Form 4 filings (283 transaction rows) in the rolling 365-day window, disclosed by 13 distinct insiders. Most recent filing: Oct 2, 2026.
When was the most recent SEC Form 4 filing for FSLR?
The most recent Form 4 filing for FSLR on Tracefour is dated Oct 2, 2026.
Who is the most active insider at FSLR?
The most active SEC Form 4 filer at FSLR in the rolling window is Chief Manufacturing Officer Verma Kuntal Kumar, with 12 filings.
What is the net insider flow at FSLR over the last 6 months?
Over the trailing 180 days, insiders at FSLR have net sold $15.5M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at FSLR in the current window?
Inside the rolling window, insiders at FSLR bought $0 and sold $43.4M based on SEC Form 4 filings.
Can I get alerts for FSLR insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at FIRST SOLAR, INC. (FSLR). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
FIRST SOLAR, INC. is in the Technology sector.