Joe Mastrangelo

CIK 1833309 · Chief Executive Officer · last filed 2026-03-05

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$9.01M

Companies

2

Total Filings

23

Lifetime Open-Market Net

-$2.47M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
EOSE Chief Executive Officer 1,487,126 $6.06 $9.01M $502.3K 2 2026-03-05
Eos Energy Enterprises, Inc. (EOSEW) Delisted Chief Executive Officer 1,569,893 $1.47 $2.31M -$2.98M 21 2025-07-29

Recent Filings · Page 2 of 3

23 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2024-01-05 Eos Energy Enterprises, Inc. (EOSEW) Delisted Mixed +127,573 -$121.8K EDGAR
2023-09-21 Eos Energy Enterprises, Inc. (EOSEW) Delisted Buy (P) +36,500 $74.8K EDGAR
2023-07-28 Eos Energy Enterprises, Inc. (EOSEW) Delisted Buy (P) +31,199 $69.6K EDGAR
2023-07-06 Eos Energy Enterprises, Inc. (EOSEW) Delisted Grant (A) $0 EDGAR
2023-01-05 Eos Energy Enterprises, Inc. (EOSEW) Delisted Mixed +119,373 -$177.7K EDGAR
2022-11-14 Eos Energy Enterprises, Inc. (EOSEW) Delisted Buy (P) +65,000 $74.7K EDGAR
2022-08-02 Eos Energy Enterprises, Inc. (EOSEW) Delisted Grant (A) $0 EDGAR
2022-05-12 Eos Energy Enterprises, Inc. (EOSEW) Delisted Buy (P) +70,000 $98.0K EDGAR
2022-03-02 Eos Energy Enterprises, Inc. (EOSEW) Delisted Buy (P) +35,000 $100.8K EDGAR
2022-01-05 Eos Energy Enterprises, Inc. (EOSEW) Delisted Mixed +154,181 -$728.2K EDGAR
Showing 1120 of 23
Page 2 of 3
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.