Eos Energy Enterprises, Inc. (EOSE): Insider Trades and Fund Holdings
In the past 12 months, Eos Energy Enterprises, Inc. insiders reported 2 open-market purchases worth $59K and 3 sales worth $1.29M; 3 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144) and fund moves in the past year, newest first.
- Oct 19, 2026NewsCompany reported: Quarterly or annual results
- Sep 22, 2026Planned saleMichael Silberman (former officer) filed notice to sell about $467,263 around Sep 22, 2026
- Sep 16, 2026NewsCompany reported: Executive or director change (amended)
- Sep 16, 2026Insider saleCEO Joe Mastrangelo sold $980,000 under a 10b5-1 plan (0 days after: executive or director change)
- Sep 16, 2026Insider saleCAO Sumeet Puri sold $171,500 under a 10b5-1 plan (0 days after: executive or director change)
- Sep 16, 2026Planned saleMastrangelo Joe (officer, director) filed notice to sell about $1 million around Sep 16, 2026
- Sep 16, 2026Planned saleKroeker Nathan (former officer) filed notice to sell about $687,344 around Sep 16, 2026
- Sep 16, 2026Planned saleSilberman Michael W (former officer) filed notice to sell about $453,906 around Sep 16, 2026
- Sep 16, 2026Planned salePuri Sumeet (officer) filed notice to sell about $181,563 around Sep 16, 2026
- Sep 14, 2026Insider buyDirector Haiyan Song bought $19,200
- Sep 11, 2026Insider buyDirector Haiyan Song bought $39,500
- Sep 9, 2026Insider saleCAO Sumeet Puri sold $141,110 under a 10b5-1 plan
- Sep 9, 2026Planned salePuri Sumeet (officer) filed notice to sell about $142,818 around Sep 9, 2026
- Aug 25, 2026NewsCompany reported: Executive or director change
- Jun 30, 2026FundBridgewater Associates opened a position in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies sold out in Q2 2026 (13F filed Aug 13, 2026)
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 16, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 16 | Joe MastrangeloCEO | ▼ SELL10b5-1 | $980K |
| Sep 16 | Sumeet PuriCAO | ▼ SELL10b5-1 | $172K |
| Sep 15 | Haiyan SongDirector | ▲ BUY | $40K |
| Sep 15 | Haiyan SongDirector | ▲ BUY | $19K |
| Sep 9 | Sumeet PuriCAO | ▼ SELL10b5-1 | $141K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Joe Mastrangelo | CEO | 0 | $0 | 1 | $980K |
| Sumeet Puri | CAO | 0 | $0 | 2 | $313K |
| Haiyan Song | Director | 2 | $59K | 0 | $0 |
Buybacks and executive pay
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $4.85M | $23.1M | n/a |
| 2024 | $5.45M | $15.3M | n/a |
| 2023 | $4.33M | $1.97M | n/a |
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
Tracked funds that report EOSE
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Bridgewater Associates | 633,125 | $3.72M | ▲ New |
| Renaissance Technologies | 0 | $0 | ▼ Sold out |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →