| $1B | ||
| $100M | ||
| $54M | ||
| $40M | ||
| $32M | ||
| $31M |
Buys | $751,662 | 6 | 21 |
Sells | $18,127,558 | 22 | 79 |
| Mastrangelo Joe | Chief Executive Officer | 2 | $502,262 | 2 | $1.55M | $-1.05M |
| Urban David | director | 1 | $100,100 | 0 | $0 | $100,100 |
| DIMITRIEF ALEXANDER | director | 1 | $90,600 | 0 | $0 | $90,600 |
| Song Haiyan | director | 2 | $58,700 | 0 | $0 | $58,700 |
| Buczkowski Michelle | Chief Administration Officer | 0 | $0 | 2 | $167,323 | $-167,323 |
| Puri Sumeet | Chief Accounting Officer | 0 | $0 | 4 | $462,314 | $-462,314 |
| Bornstein Jeffrey S | director | 0 | $0 | 2 | $612,536 | $-612,536 |
| Silberman Michael W | Chief Legal Officer | 0 | $0 | 2 | $827,211 | $-827,211 |
| Walters Marian | director | 0 | $0 | 4 | $1.28M | $-1.28M |
| Kroeker Nathan | CCO and Interim CFO | 0 | $0 | 4 | $1.75M | $-1.75M |
| Stidolph Russell Monoki | director | 0 | $0 | 2 | $11.47M | $-11.47M |
Eos Energy Enterprises, Inc., a U.S.-based company, focuses on the creation, production, and implementation of battery storage solutions. These systems are designed for diverse clients across the utility, commercial and industrial, and renewable energy markets. The company's product line includes stationary battery storage units, with its flagship Eos Znyth DC battery system specifically engineered to meet the substantial demands of grid-scale energy storage. Founded in 2008, Eos Energy Enterprises maintains its corporate headquarters in …
Over the last 12 months, insiders at Eos Energy Enterprises, Inc. have bought $751,662 and sold $18.13M worth of Eos Energy Enterprises, Inc. stock.
On average, over the past 5 years, insiders at Eos Energy Enterprises, Inc. have bought $545,633 and sold $6.44M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Mastrangelo Joe (Chief Executive Officer) — $502,262. Urban David (director) — $100,100. DIMITRIEF ALEXANDER (director) — $90,600.
The last purchase of 5,000 shares for transaction amount of $19,200 was made by Song Haiyan (director) on 2026‑09‑14.
| 2026-10-29 | Sale | Buczkowski Michelle | Chief Commercial Officer | 50,000 0.014% | $2.00 | $100,000 | -4.55% | |
| 2026-09-16 | Sale | Mastrangelo Joe | Chief Executive Officer | 250,000 0.086% | $3.92 | $980,000 | -37.69% | |
| 2026-09-16 | Sale | Puri Sumeet | Chief Accounting Officer | 43,750 0.0151% | $3.92 | $171,500 | -37.69% | |
| 2026-09-14 | Song Haiyan | director | 5,000 0.0015% | $3.84 | $19,200 | -30.82% | ||
| 2026-09-11 | Song Haiyan | director | 10,000 0.0029% | $3.95 | $39,500 | -30.00% | ||
| 2026-09-09 | Sale | Puri Sumeet | Chief Accounting Officer | 34,167 0.0117% | $4.13 | $141,110 | -26.14% | |
| 2026-07-28 | Sale | Kroeker Nathan | Chief Commercial Officer | 110,417 0.038% | $3.36 | $371,001 | +0.30% | |
| 2026-07-28 | Sale | Puri Sumeet | Chief Accounting Officer | 29,167 0.01% | $3.36 | $98,001 | +0.30% | |
| 2026-07-27 | Sale | Mastrangelo Joe | Chief Executive Officer | 159,154 0.055% | $3.61 | $574,546 | -6.51% | |
| 2026-07-07 | Sale | Kroeker Nathan | CCO and Interim CFO | 79,309 0.0253% | $4.68 | $371,166 | -24.89% | |
| 2026-06-30 | Sale | Kroeker Nathan | CCO and Interim CFO | 35,289 0.013% | $5.86 | $206,794 | -38.61% | |
| 2026-06-30 | Sale | Silberman Michael W | Chief Legal Officer | 14,998 0.0055% | $5.87 | $88,038 | -38.61% | |
| 2026-06-30 | Sale | Puri Sumeet | Chief Accounting Officer | 8,823 0.0033% | $5.86 | $51,703 | -38.61% | |
| 2026-06-30 | Sale | Buczkowski Michelle | Chief Administration Officer | 11,469 0.0042% | $5.87 | $67,323 | -38.61% | |
| 2026-05-28 | Sale | Walters Marian | director | 30,000 0.0117% | $9.18 | $275,400 | -56.23% | |
| 2026-05-20 | Sale | Walters Marian | director | 22,319 0.0087% | $7.20 | $160,697 | -44.44% | |
| 2026-05-19 | Sale | Walters Marian | director | 7,681 0.0028% | $7.07 | $54,305 | -42.51% | |
| 2026-03-09 | Urban David | director | 16,250 0.0063% | $6.16 | $100,100 | -28.04% | ||
| 2026-03-04 | Mastrangelo Joe | Chief Executive Officer | 23,900 0.0089% | $6.58 | $157,262 | -33.19% | ||
| 2026-03-02 | Mastrangelo Joe | Chief Executive Officer | 60,000 0.0254% | $5.75 | $345,000 | -22.37% |
| Mastrangelo Joe | Chief Executive Officer | 2308704 0.6383% | $4.39M | 8 | 5 | +20.38% |
| Kroeker Nathan | Chief Commercial Officer | 887527 0.2454% | $1.69M | 1 | 8 | <0.0001% |
| Stidolph Russell Monoki | director | 364355 0.1007% | $692,274.50 | 2 | 2 | +42.73% |
| DIMITRIEF ALEXANDER | director | 235221 0.065% | $446,919.90 | 8 | 1 | +60.37% |
| Walters Marian | director | 158445 0.0438% | $301,045.50 | 1 | 5 | <0.0001% |
| Bornstein Jeffrey S | director | 115759 0.032% | $219,942.10 | 1 | 3 | +63.57% |
| Urban David | director | 62471 0.0173% | $118,694.90 | 1 | 0 | |
| Song Haiyan | director | 15000 0.0041% | $28,500.00 | 2 | 0 | |
| B. Riley Financial, Inc. | 10 percent owner | 5369778 1.4846% | $10.2M | 11 | 27 | +50.32% |
| Gonzales Randall B | Chief Financial Officer | 113700 0.0314% | $216,030.00 | 2 | 0 | <0.0001% |
| Demby Claude | director | 62012 0.0171% | $117,822.80 | 1 | 1 | <0.0001% |
| Shribman Daniel | director | 33960 0.0094% | $64,524.00 | 2 | 3 | <0.0001% |
| Tedone John J | Chief Accounting Officer | 15000 0.0041% | $28,500.00 | 1 | 0 | <0.0001% |
| Zibelman Audrey Ann | 5248 0.0015% | $9,971.20 | 1 | 0 | <0.0001% | |
| Berube Melissa | General Counsel | 2650 0.0007% | $5,035.00 | 1 | 0 | <0.0001% |
$69,929,790 | 202 | 9.94% | $260.45M | |
$3,165,452 | 53 | 8.61% | $1.52B | |
$11,611,216 | 36 | 9.83% | $1.65B | |
Eos Energy Enterprises, Inc. (EOSE) | $71,787,331 | 34 | 23.19% | $687.21M |
$16,584,608 | 31 | 36.14% | $1.97B |
| Increased Positions | 219 | +77.11% | 56M | +37.32% |
| Decreased Positions | 133 | -46.83% | 33M | -21.68% |
| New Positions | 100 | New | 16M | New |
| Sold Out Positions | 46 | Sold Out | 7M | Sold Out |
| Total Postitions | 370 | +30.28% | 174M | +15.64% |
| Blackrock, Inc. | $238,793.00 | 5.68% | 18.41M | +2M | +14.35% | 2025-09-30 |
| Vanguard Group Inc | $201,513.00 | 4.8% | 15.54M | +2M | +16.65% | 2025-09-30 |
| Rubric Capital Management Lp | $133,591.00 | 3.18% | 10.3M | +10M | New | 2025-09-30 |
| State Street Corp | $93,981.00 | 2.24% | 7.25M | +1M | +24.86% | 2025-09-30 |
| Electron Capital Partners, Llc | $85,533.00 | 2.04% | 6.59M | -384,721 | -5.51% | 2025-09-30 |
| Driehaus Capital Management Llc | $85,155.00 | 2.03% | 6.57M | -476,450 | -6.77% | 2025-09-30 |
| Geode Capital Management, Llc | $80,507.00 | 1.92% | 6.21M | +799,245 | +14.78% | 2025-09-30 |
| Stifel Financial Corp | $59,976.00 | 1.43% | 4.62M | -349,095 | -7.02% | 2025-09-30 |
| Morgan Stanley | $55,787.00 | 1.33% | 4.3M | +48,590 | +1.14% | 2025-09-30 |
| Bnp Paribas Financial Markets | $43,028.00 | 1.02% | 3.32M | +2M | +176.07% | 2025-09-30 |