Joe Mastrangelo
Chief Executive Officer at Eos Energy Enterprises Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Eos Energy Enterprises Inc., 3 years.
Eos Energy Enterprises Inc.
Director · Chief Executive Officer
Chief executive roles
Eos Energy Enterprises Inc.
· Chief Executive Officer
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 9, 2024 | Eos Energy Enterprises Inc. | Open-market purchase | +52,800 | $1.43 | $75,504 |
| Jul 5, 2024 | Eos Energy Enterprises Inc. | Option exercise | +254,304 | — | — |
| Jul 5, 2024 | Eos Energy Enterprises Inc. | Shares withheld for tax | −115,683 | $1.92 | $222,111 |
| Jan 3, 2024 | Eos Energy Enterprises Inc. | Option exercise | +250,000 | — | — |
| Jan 3, 2024 | Eos Energy Enterprises Inc. | Shares withheld for tax | −122,427 | $0.99 | $121,203 |
| Sep 21, 2023 | Eos Energy Enterprises Inc. | Open-market purchase | +36,500 | $2.05 | $74,825 |
| Jul 28, 2023 | Eos Energy Enterprises Inc. | Open-market purchase | +31,199 | $2.23 | $69,574 |
| Jan 3, 2023 | Eos Energy Enterprises Inc. | Option exercise | +250,000 | — | — |
| Jan 3, 2023 | Eos Energy Enterprises Inc. | Shares withheld for tax | −130,627 | $1.36 | $177,653 |
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