Form 4 Tracker
FIRST SOLAR, INC.
FSLR

95 insider filings · Latest: Oct 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
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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May 21, 2026May 21 8:16 PMVerma Kuntal Kumar
Proposed Sale
582$250.00$145.5K—

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May 13, 2026May 13 11:40 PMMark R WidmarDirector, Chief Executive Officer
Sale
1,300$240.02$312.0K93,848(D)

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May 11, 2026May 13 11:40 PMMark R WidmarDirector, Chief Executive Officer
Sale
9,926$233.21$2.3M95,148(D)

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May 13, 2026May 13 8:02 PMKuntal Kumar VermaChief Manufacturing Officer
Sale
1,455$240.00$349.2K5,549(D)

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May 11, 2026May 13 8:02 PMKuntal Kumar VermaChief Manufacturing Officer
Sale
2,216$225.79$500.4K7,004(D)

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May 13, 2026May 13 7:56 PMWidmar Mark R
Proposed Sale
1,300$240.02$312.0K—

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May 13, 2026May 13 4:07 PMVerma Kuntal Kumar
Proposed Sale
1,455$240.00$349.2K—

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May 11, 2026May 11 8:10 PMWidmar Mark R
Proposed Sale
9,926$233.21$2.3M—

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May 11, 2026May 11 5:00 PMVerma Kuntal Kumar
Proposed Sale
2,216$225.79$500.4K—

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May 6, 2026May 8 7:22 PMKuntal Kumar VermaChief Manufacturing Officer
Sale
270$218.16$58.9K9,220(D)

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May 6, 2026May 8 7:20 PMNathan B. TheurerVP - Global Controller and CAO
Sale
31$218.16$6.8K0(D)

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May 6, 2026May 8 7:17 PMJason E. DymbortGeneral Counsel and Secretary
Sale
228$218.16$49.7K9,324(D)

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May 6, 2026May 6 1:59 PMTheurer Nathan B.
Proposed Sale
31$218.16$6.8K—

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May 6, 2026May 6 1:47 PMDymbort Jason E.
Proposed Sale
228$218.16$49.7K—

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May 6, 2026May 6 1:44 PMVerma Kuntal Kumar
Proposed Sale
270$218.16$58.9K—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Sep 1, 2026Sep 3 7:41 PMSamantha L. SloanEVP, Corporate Affairs
Option Exercise
469—469(D)

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Aug 14, 2026Aug 18 6:53 PMSamantha L. SloanEVP, Corporate Affairs
Option Exercise
437—1,314(D)

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May 4, 2026May 6 12:00 AMGeorges AntounChief Commercial Officer
Option Exercise
1,358—4,074(D)

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May 4, 2026May 5 11:57 PMAlexander R. BradleyChief Financial Officer
Option Exercise
1,210—3,630(D)

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May 4, 2026May 5 11:54 PMMichael KoralewskiChief Supply Chain Officer
Option Exercise
518—1,556(D)

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May 4, 2026May 5 11:52 PMPatrick James BuehlerChief Product Officer
Option Exercise
553—1,660(D)

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May 4, 2026May 5 11:49 PMJason E. DymbortGeneral Counsel and Secretary
Option Exercise
968—2,904(D)

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May 4, 2026May 5 11:48 PMMarkus GloecklerChief Technology Officer
Option Exercise
968—2,904(D)

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May 4, 2026May 5 11:47 PMSamantha L. SloanEVP, Corporate Affairs
Option Exercise
44—134(D)

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May 4, 2026May 5 11:46 PMCaroline StockdaleChief People and Comm. Officer
Option Exercise
622—1,867(D)

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May 4, 2026May 5 11:44 PMNathan B. TheurerVP - Global Controller and CAO
Option Exercise
44—134(D)

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May 4, 2026May 5 11:43 PMKuntal Kumar VermaChief Manufacturing Officer
Option Exercise
1,106—3,319(D)

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May 4, 2026May 5 11:42 PMMark R WidmarDirector, Chief Executive Officer
Option Exercise
3,802—11,407(D)

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

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Mar 13, 2026Mar 17 11:33 PMKuntal Kumar VermaChief Manufacturing Officer
Option Exercise
907—907(D)

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Mar 13, 2026Mar 17 11:32 PMNathan B. TheurerVP - Global Controller and CAO
Option Exercise
131—130(D)

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Mar 13, 2026Mar 17 11:30 PMCaroline StockdaleChief People and Comm. Officer
Option Exercise
800—800(D)

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Mar 13, 2026Mar 17 11:29 PMSamantha L. SloanEVP, Corporate Affairs
Option Exercise
280—280(D)

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Mar 13, 2026Mar 17 11:29 PMMichael KoralewskiChief Supply Chain Officer
Option Exercise
640—640(D)

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Mar 13, 2026Mar 17 11:28 PMMarkus GloecklerChief Technology Officer
Option Exercise
854—853(D)

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