Form 4 Tracker
Eton Pharmaceuticals, Inc.
ETON

24 insider filings · Latest: Oct 6, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Oct 6, 2026Oct 6 8:49 PMDavid KrempaChief Business Officer
Sale
4,166$55.07$229.4K43,381(D)

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Oct 6, 2026Oct 6 8:05 PMKrempa David
Proposed Sale
4,166$55.07$229.4K—

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Aug 28, 2026Aug 31 8:06 PMPaul V MaierDirector
Sale
50,000$59.07$3.0M59,745(D)

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Aug 28, 2026Aug 28 8:51 PMPaul V MaierDirector
Sale
50,000$59.07$3.0M59,745(D)

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Aug 28, 2026Aug 28 8:41 PMMAIER PAUL V
Proposed Sale
50,000$59.07$3.0M—

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Aug 24, 2026Aug 24 9:19 PMDavid KrempaChief Business Officer
Sale
25,000$65.07$1.6M37,025(D)

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Aug 24, 2026Aug 24 8:19 PMKrempa David
Proposed Sale
25,000$65.07$1.6M—

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Aug 20, 2026Aug 20 10:26 PMBRYNJELSEN SEANDirector, President & CEO
Sale
91,022$60.70$5.5M961,194(D)

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Aug 19, 2026Aug 20 10:26 PMBRYNJELSEN SEANDirector, President & CEO
Sale
8,978$62.65$562.5K1,052,216(D)

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Aug 19, 2026Aug 20 9:01 PMBRYNJELSEN SEAN
Proposed Sale
100,000$63.43$6.3M—

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Aug 19, 2026Aug 19 2:49 PMBRYNJELSEN SEAN
Proposed Sale
100,000$63.43$6.3M—

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Jul 14, 2026Jul 17 11:12 PMOpaleye Management Inc.10% Owner
Sale
28,315$37.54$1.1M40,000(I)

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Jul 14, 2026Jul 16 9:14 PMOpaleye Management Inc.10% Owner
Sale
28,315$37.54$1.1M40,000(I)

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Jul 7, 2026Jul 7 10:29 PMOpaleye Management Inc.10% Owner
Sale
26,685$38.37$1.0M53,315(I)

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Jul 6, 2026Jul 7 10:29 PMOpaleye Management Inc.10% Owner
Sale
10,000$38.00$380.0K2,700,000(I)

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Jul 2, 2026Jul 7 10:29 PMOpaleye Management Inc.10% Owner
Sale
90,000$37.39$3.4M60,000(I)

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Jun 26, 2026Jun 26 8:14 PMGruber James R.
Proposed Sale
251,818$35.70$9.0M—

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Jun 25, 2026Jun 25 8:12 PMGruber James R.
Proposed Sale
25,000$35.01$875.3K—

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Jun 23, 2026Jun 23 8:32 PMGruber James R.
Proposed Sale
25,000$33.23$830.9K—

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Jun 17, 2026Jun 17 9:08 PMJennifer Mckie AdamsDirector
Sale
50,000$32.48$1.6M0(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Oct 2, 2026Oct 6 8:49 PMDavid KrempaChief Business Officer
Option Exercise
10,522$0.0021,044(D)

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Aug 28, 2026Aug 31 8:06 PMPaul V MaierDirector
Option Exercise
50,000$3.780(D)

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Aug 28, 2026Aug 31 8:06 PMPaul V MaierDirector
Option Exercise
12,500$7.310(D)

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Aug 28, 2026Aug 28 8:51 PMPaul V MaierDirector
Option Exercise
50,000$3.780(D)

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Aug 24, 2026Aug 24 9:19 PMDavid KrempaChief Business Officer
Option Exercise
25,000$7.3170,000(D)

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Jul 31, 2026Aug 4 9:10 PMCharles J CasamentoDirector
Grant/Award
10,000—10,000(D)

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Jul 31, 2026Aug 4 9:04 PMJudith M. MatthewsChief Financial Officer
Grant/Award
32,246—32,246(D)

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Jul 31, 2026Aug 4 9:03 PMIpek Erdogan-TrinkausChief Commercial Officer
Grant/Award
80,000—80,000(D)

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Jul 31, 2026Aug 4 9:01 PMBRYNJELSEN SEANDirector, President & CEO
Grant/Award
128,985—128,985(D)

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Jul 31, 2026Aug 4 9:01 PMDavid KrempaChief Business Officer
Grant/Award
128,985—128,985(D)

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Jul 31, 2026Aug 4 8:57 PMPaul V MaierDirector
Grant/Award
10,000—10,000(D)

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Jul 31, 2026Aug 4 8:56 PMNorbert G RiedelDirector
Grant/Award
10,000—10,000(D)

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Jul 31, 2026Aug 4 8:55 PMJennifer Mckie AdamsDirector
Grant/Award
10,000—10,000(D)

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Jul 14, 2026Jul 14 9:28 PMBRYNJELSEN SEANDirector, President & CEO
Option Exercise
200,000$1.370(D)

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Jul 12, 2026Jul 14 9:28 PMBRYNJELSEN SEANDirector, President & CEO
Option Exercise
27,500$0.000(D)

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Jul 12, 2026Jul 13 8:36 PMDavid KrempaChief Business Officer
Option Exercise
10,000$0.000(D)

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Jun 26, 2026Jun 30 8:27 PMDavid KrempaChief Business Officer
Grant/Award
10,000—96,829(D)

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Jun 17, 2026Jun 17 9:08 PMJennifer Mckie AdamsDirector
Option Exercise
50,000$3.780(D)

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May 27, 2026May 27 10:28 PMDavid KrempaChief Business Officer
Option Exercise
19,679$3.58118,406(D)

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May 26, 2026May 27 10:28 PMDavid KrempaChief Business Officer
Option Exercise
37,524$1.3812,476(D)

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