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First Solar, Inc.

FSLR
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001274494

In the last 90 days, First Solar, Inc. insiders filed 0 open-market purchases and 5 sales; 1,012 institutions reported holding it in 13F filings for Q2 2026, worth $23.4B in total; Soros Fund Management is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by First Solar, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
5 filings
4 insiders, $3.62M in total
Insiders trading
4
Net value
−$3.62M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for First Solar, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for First Solar, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Sloan Samantha L.EVP, Corporate Affairs2,353Sep 3, 20267
Gloeckler MarkusChief Technology Officer5,842Sep 2, 20267
Dymbort Jason E.General Counsel and Secretary5,624Aug 12, 20266
Koralewski MichaelChief Supply Chain Officer7,642Aug 5, 20265
Ahearn Michael JDirector66,057Aug 5, 20265
George Anita M.Director5,171Jul 1, 20264
Kro Lisa ADirector4,599IndirectJul 1, 20264
Morgan Curtis ADirector223Jul 1, 20261
Post William JDirector27,385IndirectJul 1, 20264
Stebbins Paul HDirector15,950IndirectJul 1, 20265
Sweeney Michael TDirector14,325Jul 1, 20265
Renduchintala Venkata S MDirector2,133Jul 1, 20264
Wright Norman L.Director5,009Jul 1, 20264
Buehler Patrick JamesChief Product Officer4,406Jun 3, 20265
Stockdale CarolineChief People and Comm. Officer23,792Jun 1, 20265
Widmar Mark RChief Executive Officer81,861May 27, 20267
Verma Kuntal KumarChief Manufacturing Officer4,967May 22, 202610
Theurer Nathan B.VP - Global Controller and CAO0May 8, 20267
Antoun GeorgesChief Commercial Officer19,918May 5, 20265
Bradley Alexander R.Chief Financial Officer30,712May 5, 20264
Joseph MollyDirector16,195Jul 1, 20250
Jeffers Byron MichaelVP - Global Controller and CAO0Aug 13, 20240
Kennedy R CraigDirector14,108Jul 1, 20240
Hambro George ADirector25,599IndirectJul 1, 20240
Chapman Richard DDirector1,245Jul 1, 20240
Allen Sharon L.Director24,813Jul 1, 20220
Hollister Kathryn ADirector2,846Jul 1, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Mar 10, 2026 (view filing)Mar 91 dayWidmar Mark RChief Executive OfficerSSale−5.54K$190.36−$1.05M−5.3%99.9K after4 lots
Mar 5, 2026 (view filing)Mar 41 dayTheurer Nathan B.VP - Global Controller and CAOSSale−92$196.95−$18.1K−100.0%0 after10b5-1
Mar 5, 2026 (view filing)Mar 41 dayVerma Kuntal KumarChief Manufacturing OfficerSSale−728$196.95−$143.4K−8.7%7.61K after10b5-1
Mar 5, 2026 (view filing)Mar 41 dayGloeckler MarkusChief Technology OfficerSSale−3.64K$196.95−$716.9K−31.2%8.04K after10b5-1
Mar 3, 2026 (view filing)Mar 3Same dayBradley Alexander R.Chief Financial OfficerSSale−3.19K$195.93−$625.8K−7.3%40.8K after
Mar 3, 2026 (view filing)Mar 3Same dayBuehler Patrick JamesChief Product OfficerSSale−1.36K$195.93−$266.7K−18.8%5.86K after
Mar 3, 2026 (view filing)Mar 3Same daySloan Samantha L.EVP, Corporate AffairsSSale−111$195.93−$21.7K−8.8%1.15K after
Mar 3, 2026 (view filing)Mar 3Same dayKoralewski MichaelChief Supply Chain OfficerSSale−1.33K$195.93−$260.6K−9.4%12.9K after
Mar 3, 2026 (view filing)Mar 3Same dayGloeckler MarkusChief Technology OfficerSSale−3.42K$195.93−$671.1K−22.7%11.7K after
Mar 3, 2026 (view filing)Mar 3Same dayTheurer Nathan B.VP - Global Controller and CAOSSale−49$195.93−$9.60K−34.8%92 after
Mar 3, 2026 (view filing)Mar 3Same dayVerma Kuntal KumarChief Manufacturing OfficerSSale−3.43K$195.93−$671.3K−29.1%8.33K after
Mar 3, 2026 (view filing)Mar 3Same dayDymbort Jason E.General Counsel and SecretarySSale−3.27K$195.93−$641.3K−16.4%16.6K after
Mar 3, 2026 (view filing)Mar 3Same dayWidmar Mark RChief Executive OfficerSSale−7.74K$195.93−$1.52M−7.8%91.8K after
Mar 3, 2026 (view filing)Mar 3Same dayStockdale CarolineChief People and Comm. OfficerSSale−1.65K$195.93−$323.3K−4.9%32.2K after
Mar 3, 2026 (view filing)Mar 3Same dayAntoun GeorgesChief Commercial OfficerSSale−1.96K$194.95−$381.7K−10.0%17.7K after
Nov 10, 2025 (view filing)Nov 73 daysStebbins Paul HDirectorSSale−7.00K$262.40−$1.84M−31.4%15.3K after3 lots
Nov 10, 2025 (view filing)Nov 64 daysSweeney Michael TDirectorSSale−4.50K$271.11−$1.22M−24.8%13.7K after
Nov 6, 2025 (view filing)Nov 42 daysAntoun GeorgesChief Commercial OfficerSSale−37.4K$265.01−$9.91M−70.8%15.4K after13 lots10b5-1
Sep 3, 2025 (view filing)Sep 21 daySloan Samantha L.EVP, Corporate AffairsSSale−140$188.47−$26.4K−13.6%890 after
Aug 20, 2025 (view filing)Aug 191 dayDymbort Jason E.General Counsel and SecretarySSale−1.82K$215.33−$392.8K−8.2%20.4K after10b5-1
Aug 18, 2025 (view filing)Aug 153 daysWidmar Mark RChief Executive OfficerSSale−2.32K$199.44−$462.9K−2.8%81.9K after18 lots10b5-1
Aug 18, 2025 (view filing)Aug 144 daysTheurer Nathan B.VP - Global Controller and CAOSSale−686$182.03−$124.9K−100.0%0 after10b5-1
Aug 14, 2025 (view filing)Aug 12-132 daysWidmar Mark RChief Executive OfficerSSale−27.7K$185.71−$5.15M−24.8%84.2K after11 lots10b5-1
Jul 7, 2025 (view filing)Jul 34 daysBuehler Patrick JamesChief Product OfficerSSale−1.60K$180.00−$288.0K−26.7%4.40K after10b5-1
Jun 4, 2025 (view filing)Jun 31 dayBuehler Patrick JamesChief Product OfficerSSale−1.87K$149.08−$278.5K−23.7%6.00K after10b5-1
Jun 3, 2025 (view filing)Jun 21 dayKoralewski MichaelChief Supply Chain OfficerSSale−2.95K$158.21−$466.9K−20.6%11.4K after10b5-1
May 29, 2025 (view filing)May 281 dayGloeckler MarkusChief Technology OfficerSSale−9.56K$155.05−$1.48M−54.3%8.04K after10b5-1
May 13, 2025 (view filing)May 121 dayBradley Alexander R.Chief Financial OfficerSSale−8.79K$150.00−$1.32M−19.2%36.9K after2 lots10b5-1
Mar 19, 2025 (view filing)Mar 181 dayVerma Kuntal KumarChief Manufacturing OfficerSSale−503$127.83−$64.3K−9.7%4.70K after5 lots10b5-1
Mar 18, 2025 (view filing)Mar 171 dayAntoun GeorgesChief Commercial OfficerSSale−229$133.75−$30.6K−0.4%52.8K after
Mar 18, 2025 (view filing)Mar 171 dayBradley Alexander R.Chief Financial OfficerSSale−599$133.75−$80.1K−1.3%45.7K after
Mar 18, 2025 (view filing)Mar 171 dayBuehler Patrick JamesChief Product OfficerSSale−186$133.75−$24.9K−2.3%7.87K after
Mar 18, 2025 (view filing)Mar 171 dayDymbort Jason E.General Counsel and SecretarySSale−363$133.75−$48.6K−1.6%22.3K after
Mar 18, 2025 (view filing)Mar 171 dayGloeckler MarkusChief Technology OfficerSSale−380$133.75−$50.8K−2.1%17.6K after
Mar 18, 2025 (view filing)Mar 171 dayKoralewski MichaelChief Supply Chain OfficerSSale−273$133.75−$36.5K−1.9%14.3K after
Mar 18, 2025 (view filing)Mar 171 dayStockdale CarolineChief People and Comm. OfficerSSale−341$133.75−$45.6K−1.1%30.3K after
Mar 18, 2025 (view filing)Mar 171 dayTheurer Nathan B.VP - Global Controller and CAOSSale−35$133.75−$4.68K−10.2%307 after
Mar 18, 2025 (view filing)Mar 171 dayVerma Kuntal KumarChief Manufacturing OfficerSSale−404$133.75−$54.0K−7.2%5.20K after
Mar 18, 2025 (view filing)Mar 171 dayWidmar Mark RChief Executive OfficerSSale−1.97K$133.75−$263.0K−1.7%111.9K after
Mar 10, 2025 (view filing)Mar 73 daysWidmar Mark RChief Executive OfficerSSale−1.27K$132.96−$169.1K−1.2%109.0K after
Mar 10, 2025 (view filing)Mar 73 daysVerma Kuntal KumarChief Manufacturing OfficerSSale−419$132.96−$55.7K−8.2%4.70K after
Mar 10, 2025 (view filing)Mar 73 daysTheurer Nathan B.VP - Global Controller and CAOSSale−31$132.96−$4.12K−12.8%211 after
Mar 10, 2025 (view filing)Mar 73 daysStockdale CarolineChief People and Comm. OfficerSSale−227$132.96−$30.2K−0.8%29.9K after
Mar 10, 2025 (view filing)Mar 73 daysKoralewski MichaelChief Supply Chain OfficerSSale−188$132.96−$25.0K−1.3%14.0K after
Mar 10, 2025 (view filing)Mar 73 daysGloeckler MarkusChief Technology OfficerSSale−378$132.96−$50.3K−2.2%17.1K after
Mar 10, 2025 (view filing)Mar 73 daysDymbort Jason E.General Counsel and SecretarySSale−320$132.96−$42.5K−1.4%21.8K after
Mar 10, 2025 (view filing)Mar 73 daysBuehler Patrick JamesChief Product OfficerSSale−192$132.96−$25.5K−2.5%7.63K after
Mar 10, 2025 (view filing)Mar 73 daysBradley Alexander R.Chief Financial OfficerSSale−391$132.96−$52.0K−0.9%44.9K after
Mar 10, 2025 (view filing)Mar 73 daysAntoun GeorgesChief Commercial OfficerSSale−147$132.96−$19.5K−0.3%52.5K after
Mar 3, 2025 (view filing)Feb 283 daysWidmar Mark RChief Executive OfficerSSale−21.5K$141.09−$3.04M−17.2%103.4K after10b5-1