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CIK 0001805077 · Non-accelerated filer

Eos Energy Enterprises, Inc.

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Ticker
EOSE
Exchange
Nasdaq
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
(732) 225-8400
Business address
TWO ALLEGHENY CENTER, NOVA TOWER 2, PITTSBURGH, PA, 15212
Former names
B. Riley Principal Merger Corp. II

Securities

  • EOSE Common Stock Nasdaq
  • EOSEW Warrant Nasdaq
Open-market buys, last 90 days
$105,200
in 2 filings
Open-market sales, last 90 days
$1,392,610
in 4 filings, $1.4M under 10b5-1 plans

Net −$1,287,410. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Mastrangelo Joe −$980K Chief Executive Officer sold 10% of stake
  2. Puri Sumeet −$313K Chief Accounting Officer sold 22% of stake
  3. Buczkowski Michelle −$100K Chief Commercial Officer sold 31% of stake
  4. Song Haiyan +$59K Director 1 filing
  5. DIMITRIEF ALEXANDER +$47K Director 1 filing
Date Insider Transaction Shares Price Value Owned after
2026-06-26 Buczkowski Michelle Chief Administration Officer Option exercise · Restricted Stock Units 10b5-1 −22,938 45,876
2026-06-26 Silberman Michael W Chief Legal Officer Option exercise 10b5-1 +29,996 313,275
2026-06-26 Silberman Michael W Chief Legal Officer Option exercise · Restricted Stock Units 10b5-1 −29,996 59,991
2026-06-26 Kroeker Nathan CCO and Interim CFO Option exercise 10b5-1 +70,578 733,090
2026-06-26 Kroeker Nathan CCO and Interim CFO Option exercise · Restricted Stock Units 10b5-1 −70,578 141,157
2026-06-26 Mastrangelo Joe Chief Executive Officer Option exercise +130,570 1,701,050
2026-06-26 Mastrangelo Joe Chief Executive Officer Option exercise · Restricted Stock Units −130,570 261,140
2026-06-12 Mastrangelo Joe Chief Executive Officer Option exercise +200,000 $1.34 $268K 1,687,126
2026-06-12 Mastrangelo Joe Chief Executive Officer Shares withheld for taxes −116,646 $6.06 $707K 1,570,480
2026-06-12 Mastrangelo Joe Chief Executive Officer Option exercise · Stock Option (Right to Buy) −200,000 0
2026-06-08 Lagi Alessandro Chief Financial Officer Grant or award · Restricted Stock Units +277,773 277,773
2026-06-05 Bornstein Jeffrey S Director Grant or award · Restricted Stock Units +24,289 24,289
2026-06-05 Nigro Joseph Director Grant or award · Restricted Stock Units +24,289 24,289
2026-06-05 McNeil Jeff Director Grant or award · Restricted Stock Units +18,217 18,217
2026-06-05 Demby Claude Director Grant or award · Restricted Stock Units +18,217 18,217
2026-06-05 Walters Marian Director Grant or award · Restricted Stock Units +21,253 21,253
2026-06-05 Urban David Director Grant or award · Restricted Stock Units +18,217 18,217
2026-06-05 Nixon Gregory S. Director Grant or award · Restricted Stock Units +18,217 18,217
2026-06-05 DIMITRIEF ALEXANDER Director Grant or award · Restricted Stock Units +21,253 21,253
2026-06-02 Nigro Joseph Director Option exercise +3,565 38,950

Page 5 of 30 · 588 trades