Eos Energy Enterprises, Inc. (EOSE) Insider Trading
Over the last 3 months, EOSE insiders made 0 open-market buys and 8 sales, a net sale of -$1.8M (SEC Form 4). Over the last 6 months, 279 institutions increased and 195 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
8
Net (3m)
-$1.8M
Insider trades by month Buys Sells
Dec
Jan
Mar
May
Jun
Jul
Context3-month price -64%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 26, 2026 | Lagi Alessandroofficer: Chief Financial Officer | Grant | 195,130 | — |
| Aug 26, 2026 | Puri Sumeetofficer: Chief Accounting Officer | Grant | 65,044 | — |
| Aug 26, 2026 | Mastrangelo Joedirector, officer: Chief Executive Officer | Grant | 611,406 | — |
| Aug 26, 2026 | Buczkowski Michelleofficer: Chief Commercial Officer | Grant | 195,130 | — |
| Aug 6, 2026 | Kroeker Nathanofficer: Chief Commercial Officer | Option | 16,944 | $5.48 |
| Aug 6, 2026 | Mastrangelo Joedirector, officer: Chief Executive Officer | Option | 48,758 | $5.48 |
| Aug 6, 2026 | Nigro Josephdirector | Option | 2,773 | $5.48 |
| Aug 6, 2026 | Cerberus GP Manager LLCdirector, 10 percent owner: | Grant | 20,017,772 | $5.48 |
| Aug 6, 2026 | DIMITRIEF ALEXANDERdirector | Option | 603 | $5.48 |
| Aug 6, 2026 | Bornstein Jeffrey Sdirector | Option | 9,558 | $5.48 |
| Aug 6, 2026 | Nigro Josephdirector | Option | 1,217 | $5.48 |
| Aug 6, 2026 | Kroeker Nathanofficer: Chief Commercial Officer | Option | 7,435 | $5.48 |
| Aug 6, 2026 | Urban Daviddirector | Option | 5,347 | $5.48 |
| Aug 6, 2026 | Buczkowski Michelleofficer: Chief Administration Officer | Option | 2,585 | $5.48 |
| Aug 6, 2026 | DIMITRIEF ALEXANDERdirector | Option | 1,377 | $5.48 |
| Aug 6, 2026 | Walters Mariandirector | Option | 5,005 | $5.48 |
| Aug 6, 2026 | Demby Claudedirector | Option | 801 | $5.48 |
| Aug 6, 2026 | DIMITRIEF ALEXANDERdirector | Option | 17,897 | $5.48 |
| Aug 6, 2026 | Demby Claudedirector | Option | 1,825 | $5.48 |
| Aug 6, 2026 | Buczkowski Michelleofficer: Chief Administration Officer | Option | 1,134 | $5.48 |
| Aug 6, 2026 | Mastrangelo Joedirector, officer: Chief Executive Officer | Option | 111,118 | $5.48 |
| Aug 6, 2026 | Urban Daviddirector | Option | 12,185 | $5.48 |
| Aug 6, 2026 | Bornstein Jeffrey Sdirector | Option | 4,194 | $5.48 |
| Aug 6, 2026 | DIMITRIEF ALEXANDERdirector | Option | 7,853 | $5.48 |
| Aug 6, 2026 | Walters Mariandirector | Option | 11,407 | $5.48 |
| Jul 28, 2026 | Puri Sumeetofficer: Chief Accounting Officer | Option | 58,334 | — |
| Jul 28, 2026 | Kroeker Nathanofficer: Chief Commercial Officer | Sell | 110,417 | $3.36 |
| Jul 28, 2026 | Kroeker Nathanofficer: Chief Commercial Officer | Option | 220,834 | — |
| Jul 28, 2026 | Puri Sumeetofficer: Chief Accounting Officer | Sell | 29,167 | $3.36 |
| Jul 28, 2026 | Mastrangelo Joedirector, officer: Chief Executive Officer | Option | 333,334 | — |
Source: EOSE SEC Form 4 filings, latest Aug 26, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their EOSE positions over the last 6 months (SEC Form 13F).
Increased
279
New positions
153
Reduced
195
Sold out
43
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 27.1M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 24.1M | May 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 22.3M | Aug 14, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 20.4M | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 19.2M | Aug 14, 2026 |
| CITADEL ADVISORS LLC | Increased | 18.0M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 15.0M | Aug 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 15.0M | May 15, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | Increased | 14.9M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 14.8M | May 15, 2026 |
| TWO SIGMA INVESTMENTS, LP | Reduced | 13.7M | Aug 14, 2026 |
| Hudson Bay Capital Management LP | New Position | 13.7M | Aug 14, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | Reduced | 13.6M | Aug 14, 2026 |
| Walleye Trading LLC | Increased | 10.7M | Aug 3, 2026 |
| STATE STREET CORP | Increased | 10.2M | Aug 7, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.