Form 4: Eos Energy Enterprises CEO Sells Shares
Insider Transaction (Form 4)
Joe Mastrangelo, Chief Executive Officer and a Director of Eos Energy Enterprises, Inc., sold 250,000 shares of common stock on September 14, 2026 for $3.92 per share.
Summary
- Grant/award: acquired 500,000 Common Stock on September 14, 2026; holds 2,558,704 after (Direct).
- Open-market sale: disposed of 250,000 Common Stock at $3.92 ($980,000) on September 16, 2026; holds 2,308,704 after (Direct).
- Option exercise/conversion: disposed of 500,000 Performance-Based Restricted Stock Units on September 14, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $980,000 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Joe Mastrangelo — Director, Officer (Chief Executive Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-14 | Grant/award | Common Stock | 500,000 | — | — | 2,558,704 |
| 2026-09-16 | Open-market sale | Common Stock | 250,000 | $4 | $980.0K | 2,308,704 |
| 2026-09-14 | Option exercise/conversion | Performance-Based Restricted Stock Units | 500,000 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-14 | Grant/award (500,000 shares) |
| 2026-09-16 | Open-market sale (250,000 shares) |
| 2026-09-14 | Option exercise/conversion (500,000 shares) |
Keywords
insider transaction, Form 4, EOSE, Eos Energy Enterprises, Inc., bearish, Joe Mastrangelo
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