Form 4 Tracker
Eos Energy Enterprises, Inc.
EOSE

60 insider filings · Latest: Sep 14, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
May 16, 2025May 16 9:49 PMJoseph Mastrangelo
Proposed Sale
270,384$6.86$1.9M—

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Page 4 of 4

Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 26, 2026Jun 30 9:05 PMNathan KroekerCCO and Interim CFO
Option Exercise
70,578—141,157(D)

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Jun 26, 2026Jun 30 9:05 PMJoe MastrangeloDirector, Chief Executive Officer
Option Exercise
130,570—261,140(D)

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Jun 12, 2026Jun 15 1:15 PMJoe MastrangeloDirector, Chief Executive Officer
Option Exercise
200,000$1.340(D)

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Jun 5, 2026Jun 9 8:27 PMJeffrey S BornsteinDirector
Grant/Award
24,289—24,289(D)

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Jun 5, 2026Jun 9 8:26 PMJoseph NigroDirector
Grant/Award
24,289—24,289(D)

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Jun 5, 2026Jun 9 8:24 PMJeff McneilDirector
Grant/Award
18,217—18,217(D)

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Jun 5, 2026Jun 9 8:24 PMClaude DembyDirector
Grant/Award
18,217—18,217(D)

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Jun 5, 2026Jun 9 8:23 PMMarian WaltersDirector
Grant/Award
21,253—21,253(D)

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Jun 5, 2026Jun 9 8:22 PMDavid UrbanDirector
Grant/Award
18,217—18,217(D)

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Jun 5, 2026Jun 9 8:22 PMGregory S. NixonDirector
Grant/Award
18,217—18,217(D)

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Jun 5, 2026Jun 9 8:21 PMAlexander DimitriefDirector
Grant/Award
21,253—21,253(D)

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Jun 8, 2026Jun 9 8:19 PMAlessandro LagiChief Financial Officer
Grant/Award
277,773—277,773(D)

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Jun 2, 2026Jun 3 8:55 PMJoseph NigroDirector
Option Exercise
3,565—0(D)

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Jun 2, 2026Jun 3 8:53 PMMarian WaltersDirector
Option Exercise
1,782—0(D)

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May 28, 2026May 29 8:01 PMMarian WaltersDirector
Option Exercise
30,000$1.1835,018(D)

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May 20, 2026May 22 8:02 PMMarian WaltersDirector
Option Exercise
22,319$1.1865,018(D)

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May 19, 2026May 19 11:33 PMJeff McneilDirector
Option Exercise
23,111—0(D)

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May 19, 2026May 19 11:31 PMJeffrey S BornsteinDirector
Option Exercise
30,815—0(D)

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May 19, 2026May 19 11:29 PMClaude DembyDirector
Option Exercise
23,111—0(D)

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May 19, 2026May 19 11:28 PMAlexander DimitriefDirector
Option Exercise
26,963—0(D)

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