Form 4 Tracker
Eos Energy Enterprises, Inc.
EOSE

60 insider filings · Latest: Sep 14, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 30, 2026Jun 30 9:07 PMMichelle BuczkowskiChief Administration Officer
Sale
11,469$5.87$67.3K59,242(D)

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Jun 30, 2026Jun 30 9:06 PMMichael W SilbermanChief Legal Officer
Sale
14,998$5.87$88.0K298,277(D)

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Jun 30, 2026Jun 30 9:05 PMNathan KroekerCCO and Interim CFO
Sale
35,289$5.86$206.8K697,801(D)

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Jun 30, 2026Jun 30 8:52 PMPuri Sumeet
Proposed Sale
8,823$5.99$52.8K—

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Jun 30, 2026Jun 30 8:22 PMSilberman Michael W
Proposed Sale
14,998$5.99$89.8K—

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Jun 30, 2026Jun 30 8:20 PMKroeker Nathan
Proposed Sale
35,289$5.99$211.4K—

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Jun 30, 2026Jun 30 8:20 PMBuczkowski Michelle
Proposed Sale
11,469$5.99$68.7K—

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May 28, 2026May 29 8:01 PMMarian WaltersDirector
Sale
30,000$9.18$275.4K158,445(D)

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May 28, 2026May 28 8:31 PMMarian Walters
Proposed Sale
30,000$9.18$275.4K—

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May 20, 2026May 22 8:02 PMMarian WaltersDirector
Sale
22,319$7.20$160.7K158,445(D)

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May 19, 2026May 19 11:25 PMMarian WaltersDirector
Sale
7,681$7.07$54.3K135,334(D)

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May 19, 2026May 19 8:49 PMMarian Walters
Proposed Sale
30,000$7.07$212.1K—

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Mar 9, 2026Mar 10 12:52 PMDavid UrbanDirector
Purchase
16,250$6.16$100.1K62,471(D)

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Mar 4, 2026Mar 5 1:48 PMJoe MastrangeloDirector, Chief Executive Officer
Purchase
23,900$6.58$157.3K1,487,126(D)

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Mar 2, 2026Mar 4 1:56 PMAlexander DimitriefDirector
Purchase
15,000$6.04$90.6K235,221(D)

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Mar 2, 2026Mar 3 2:00 PMJoe MastrangeloDirector, Chief Executive Officer
Purchase
60,000$5.75$345.0K1,463,226(D)

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Jan 26, 2026Jan 26 9:52 PMNathan KroekerCCO and Interim CFO
Sale
50,000$16.04$802.0K662,512(D)

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Jan 26, 2026Jan 26 9:05 PMKroeker Nathan
Proposed Sale
50,000$16.99$849.3K—

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Jan 23, 2026Jan 23 9:34 PMMichael W SilbermanChief Legal Officer
Sale
41,667$17.74$739.2K283,279(D)

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Jan 23, 2026Jan 23 9:07 PMSilberman Michael W
Proposed Sale
41,667$18.25$760.6K—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Sep 14, 2026Sep 16 8:28 PMSumeet PuriChief Accounting Officer
Option Exercise
87,500—0(D)

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Sep 14, 2026Sep 16 8:27 PMJoe MastrangeloDirector, Chief Executive Officer
Option Exercise
500,000—0(D)

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Sep 5, 2026Sep 9 10:05 PMSumeet PuriChief Accounting Officer
Option Exercise
68,333—0(D)

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Aug 24, 2026Aug 26 8:06 PMSumeet PuriChief Accounting Officer
Grant/Award
65,044—65,044(D)

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Aug 24, 2026Aug 26 8:06 PMMichelle BuczkowskiChief Commercial Officer
Grant/Award
195,130—195,130(D)

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Aug 24, 2026Aug 26 8:05 PMAlessandro LagiChief Financial Officer
Grant/Award
195,130—195,130(D)

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Aug 24, 2026Aug 26 8:03 PMJoe MastrangeloDirector, Chief Executive Officer
Grant/Award
611,406—611,406(D)

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Aug 4, 2026Aug 6 9:16 PMCerberus GP Manager LLCDirector, 10% Owner
Grant/Award
20,017,772—20,017,772(I)

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Jul 21, 2026Aug 6 12:14 PMJoe MastrangeloDirector, Chief Executive Officer
Option Exercise
48,758$5.4848,758(D)

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Jul 21, 2026Aug 6 12:14 PMJoe MastrangeloDirector, Chief Executive Officer
Option Exercise
111,118$5.480(D)

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Jul 21, 2026Aug 6 12:12 PMAlexander DimitriefDirector
Option Exercise
8,456$5.48603(I)

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Jul 21, 2026Aug 6 12:12 PMAlexander DimitriefDirector
Option Exercise
19,274$5.480(I)

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Jul 21, 2026Aug 6 12:11 PMMarian WaltersDirector
Option Exercise
11,407$5.480(D)

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Jul 21, 2026Aug 6 12:11 PMMarian WaltersDirector
Option Exercise
5,005$5.485,005(D)

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Jul 21, 2026Aug 6 12:10 PMJeffrey S BornsteinDirector
Option Exercise
4,194$5.484,194(D)

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Jul 21, 2026Aug 6 12:10 PMJeffrey S BornsteinDirector
Option Exercise
9,558$5.480(D)

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Jul 21, 2026Aug 6 12:08 PMDavid UrbanDirector
Option Exercise
5,347$5.485,347(D)

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Jul 21, 2026Aug 6 12:08 PMDavid UrbanDirector
Option Exercise
12,185$5.480(D)

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Jul 21, 2026Aug 6 12:06 PMJoseph NigroDirector
Option Exercise
2,773$5.480(D)

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Jul 21, 2026Aug 6 12:06 PMJoseph NigroDirector
Option Exercise
1,217$5.481,217(D)

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