Form 4 Tracker
FIRST SOLAR, INC.
FSLR

82 insider filings · Latest: Aug 11, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Aug 17, 2026Aug 17 7:39 PMSloan Samantha L.
Proposed Sale
127$222.95$28.3K

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Aug 11, 2026Aug 12 11:55 PMJason E. DymbortGeneral Counsel and Secretary
Sale
3,700$249.38$922.7K5,624(D)

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Aug 11, 2026Aug 11 9:35 PMDymbort Jason E.
Proposed Sale
3,700$249.38$922.7K

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Aug 4, 2026Aug 5 10:11 PMMarkus GloecklerChief Technology Officer
Sale
829$248.00$205.6K6,642(D)

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Aug 3, 2026Aug 5 10:11 PMMarkus GloecklerChief Technology Officer
Sale
3,425$218.95$749.9K7,471(D)

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Aug 3, 2026Aug 5 10:08 PMMichael KoralewskiChief Supply Chain Officer
Sale
7,000$221.51$1.6M7,642(D)

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Aug 4, 2026Aug 4 6:22 PMGloeckler Markus
Proposed Sale
829$248.00$205.6K

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Aug 3, 2026Aug 3 4:55 PMGloeckler Markus
Proposed Sale
3,425$218.95$749.9K

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Aug 3, 2026Aug 3 4:11 PMKoralewski Michael
Proposed Sale
7,000$221.51$1.6M

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Jun 2, 2026Jun 3 8:21 PMPatrick James BuehlerChief Product Officer
Sale
3,000$302.00$906.0K4,406(D)

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Jun 2, 2026Jun 2 2:32 PMBuehler Patrick James
Proposed Sale
3,000$302.00$906.0K

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May 28, 2026Jun 1 6:27 PMCaroline StockdaleChief People and Comm. Officer
Sale
10,628$275.60$2.9M23,792(D)

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May 28, 2026May 28 1:56 PMStockdale Caroline
Proposed Sale
10,628$275.60$2.9M

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May 26, 2026May 27 8:03 PMMark R WidmarDirector, Chief Executive Officer
Sale
5,195$268.98$1.4M81,861(D)

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May 22, 2026May 27 8:03 PMMark R WidmarDirector, Chief Executive Officer
Sale
1,977$254.15$502.5K87,056(D)

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May 26, 2026May 26 8:07 PMWidmar Mark R
Proposed Sale
5,195$268.98$1.4M

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May 21, 2026May 22 8:31 PMKuntal Kumar VermaChief Manufacturing Officer
Sale
582$250.00$145.5K4,967(D)

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May 21, 2026May 22 8:28 PMMark R WidmarDirector, Chief Executive Officer
Sale
4,815$247.43$1.2M89,033(D)

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May 22, 2026May 22 8:05 PMWidmar Mark R
Proposed Sale
1,977$254.15$502.5K

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May 21, 2026May 21 8:27 PMWidmar Mark R
Proposed Sale
4,815$247.43$1.2M

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 4, 2026May 6 12:00 AMGeorges AntounChief Commercial Officer
Option Exercise
1,3584,074(D)

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May 4, 2026May 5 11:57 PMAlexander R. BradleyChief Financial Officer
Option Exercise
1,2103,630(D)

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May 4, 2026May 5 11:54 PMMichael KoralewskiChief Supply Chain Officer
Option Exercise
5181,556(D)

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May 4, 2026May 5 11:52 PMPatrick James BuehlerChief Product Officer
Option Exercise
5531,660(D)

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May 4, 2026May 5 11:49 PMJason E. DymbortGeneral Counsel and Secretary
Option Exercise
9682,904(D)

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May 4, 2026May 5 11:48 PMMarkus GloecklerChief Technology Officer
Option Exercise
9682,904(D)

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May 4, 2026May 5 11:47 PMSamantha L. SloanEVP, Corporate Affairs
Option Exercise
44134(D)

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May 4, 2026May 5 11:46 PMCaroline StockdaleChief People and Comm. Officer
Option Exercise
6221,867(D)

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May 4, 2026May 5 11:44 PMNathan B. TheurerVP - Global Controller and CAO
Option Exercise
44134(D)

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May 4, 2026May 5 11:43 PMKuntal Kumar VermaChief Manufacturing Officer
Option Exercise
1,1063,319(D)

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May 4, 2026May 5 11:42 PMMark R WidmarDirector, Chief Executive Officer
Option Exercise
3,80211,407(D)

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Mar 13, 2026Mar 17 11:34 PMMark R WidmarDirector, Chief Executive Officer
Option Exercise
4,8564,856(D)

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Mar 13, 2026Mar 17 11:33 PMKuntal Kumar VermaChief Manufacturing Officer
Option Exercise
907907(D)

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Mar 13, 2026Mar 17 11:32 PMNathan B. TheurerVP - Global Controller and CAO
Option Exercise
131130(D)

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Mar 13, 2026Mar 17 11:30 PMCaroline StockdaleChief People and Comm. Officer
Option Exercise
800800(D)

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Mar 13, 2026Mar 17 11:29 PMSamantha L. SloanEVP, Corporate Affairs
Option Exercise
280280(D)

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Mar 13, 2026Mar 17 11:29 PMMichael KoralewskiChief Supply Chain Officer
Option Exercise
640640(D)

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Mar 13, 2026Mar 17 11:28 PMMarkus GloecklerChief Technology Officer
Option Exercise
854853(D)

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Mar 13, 2026Mar 17 11:27 PMJason E. DymbortGeneral Counsel and Secretary
Option Exercise
854853(D)

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Mar 13, 2026Mar 17 11:26 PMPatrick James BuehlerChief Product Officer
Option Exercise
427427(D)

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Page 1 of 3

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