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Eos Energy Enterprises, Inc. (NASDAQ:EOSE)
US · Delayed Price · Currency is USD
Industrials · Electrical Equipment & Parts
1.68-0.05 (-2.75%)
Insider Score
/ 100
EOSE Insider Score
Eos Energy Enterprises, Inc. has a live Insider Score.
Scored on 2 qualifying trades from 1 insider in the last 90 days.
EOSE Stock Insider Trading Activity
EOSE stock’s insider trading shows 2 purchases for an estimated $58.70K and 7 sales on the open market for an estimated $2.71M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days2 qualifying buys1 insider$58.70K bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Puri Sumeet Other | Sell | 43,750 | $3.92 | $171.50K | 13.5% | 280,195 | Sep 16, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Sell | 250,000 | $3.92 | $980.00K | 9.8% | 2,308,704 | Sep 16, 2026 | — | Form 4 |
| Puri Sumeet Other | Option exercise | 87,500 | — | — | 37.0% | 323,945 | Sep 14, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Award | 500,000 | — | — | 24.3% | 2,558,704 | Sep 14, 2026 | — | Form 4 |
| Song Haiyan Director | Buy | 5,000 | $3.84 | $19.20K | 50.0% | 15,000 | Sep 14, 2026 | CDilution | Form 4 |
| Song Haiyan Director | Buy | 10,000 | $3.95 | $39.50K | New | 10,000 | Sep 11, 2026 | BFirst BuyDilution | Form 4 |
| Puri Sumeet Other | Sell | 34,167 | $4.13 | $141.11K | 12.6% | 236,445 | Sep 9, 2026 | — | Form 4 |
| Puri Sumeet Other | Option exercise | 68,333 | — | — | 33.8% | 270,612 | Sep 5, 2026 | — | Form 4 |
| Kroeker Nathan Other | Sell | 110,417 | $3.36 | $371.00K | 11.1% | 887,527 | Jul 28, 2026 | — | Form 4 |
| Puri Sumeet Other | Sell | 29,167 | $3.36 | $98.00K | 12.6% | 202,279 | Jul 28, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Sell | 159,154 | $3.61 | $574.55K | 7.6% | 1,947,586 | Jul 27, 2026 | — | Form 4 |
| Kroeker Nathan Other | Option exercise | 220,834 | — | — | 28.4% | 997,944 | Jul 25, 2026 | — | Form 4 |
| Puri Sumeet Other | Option exercise | 58,334 | — | — | 33.7% | 231,446 | Jul 25, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Option exercise | 333,334 | — | — | 18.8% | 2,106,740 | Jul 25, 2026 | — | Form 4 |
| Demby Claude Director | Option exercise | 1,825 | $5.48 | $10.00K | 1.2% | 157,400 | Jul 21, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Option exercise | 111,118 | $5.48 | $608.93K | 5.7% | 2,058,704 | Jul 21, 2026 | — | Form 4 |
| DIMITRIEF ALEXANDER Director | Option exercise | 17,897 | $5.48 | $98.08K | 7.1% | 269,296 | Jul 21, 2026 | — | Form 4 |
| DIMITRIEF ALEXANDER Director | Option exercise | 1,377 | $5.48 | $7.55K | 13.8% | 11,377 | Jul 21, 2026 | — | Form 4 |
| Walters Marian Director | Option exercise | 11,407 | $5.48 | $62.51K | 7.1% | 171,634 | Jul 21, 2026 | — | Form 4 |
| Bornstein Jeffrey S Director | Option exercise | 9,558 | $5.48 | $52.38K | 7.1% | 143,806 | Jul 21, 2026 | — | Form 4 |
| Urban David Director | Option exercise | 12,185 | $5.48 | $66.77K | 14.2% | 97,767 | Jul 21, 2026 | — | Form 4 |
| Nigro Joseph Director | Option exercise | 2,773 | $5.48 | $15.20K | 7.1% | 41,723 | Jul 21, 2026 | — | Form 4 |
| Buczkowski Michelle Other | Option exercise | 2,585 | $5.48 | $14.17K | 4.4% | 61,827 | Jul 21, 2026 | — | Form 4 |
| Kroeker Nathan Other | Option exercise | 16,944 | $5.48 | $92.85K | 1.9% | 904,471 | Jul 21, 2026 | — | Form 4 |
| Kroeker Nathan CFO | Sell | 79,309 | $4.68 | $371.17K | 9.3% | 777,110 | Jul 7, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Tax withheld | 121,245 | $5.06 | $613.50K | 6.4% | 1,773,406 | Jul 6, 2026 | — | Form 4 |
| Mastrangelo Joe CEO | Option exercise | 254,304 | — | — | 15.5% | 1,894,651 | Jul 5, 2026 | — | Form 4 |
| Kroeker Nathan CFO | Option exercise | 105,008 | — | — | 14.0% | 856,419 | Jul 5, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.