Eos Energy Enterprises, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Eos Energy Enterprises, Inc. (EOSE), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are EOSE insiders buying or selling?
In the last 12 months, Eos Energy Enterprises, Inc. insiders reported 5 open-market purchases ($751.7K) and 19 sales ($18.0M) — net selling of $17.3M. Since June 2020, Trabud has recorded 83 Form 4 filings for EOSE: 35 buys ($53.5M) and 48 sells ($54.4M).
Source: SEC EDGAR Form 4
Key Statistics (June 2020 – Sep 16, 2026)
Total Form 4 filings
83
SEC EDGAR
Insider filers
18
Insider buys (35)
$53.5M
Insider sells (48)
$54.4M
Insider sentiment
Net sellingNet insider flow of $968.8K in net selling since June 2020, and $17.3M in net selling over the last 12 months. 1 insider buy in the last 90 days.
Recent EOSE insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | Sumeet Puri | Chief Accounting Officer | Sale | 43.8K | $3.92 | $171.5K | SEC ↗ |
| Sep 16, 2026 | Joe Mastrangelo | Chief Executive Officer | Sale | 250.0K | $3.92 | $980.0K | SEC ↗ |
| Sep 15, 2026 | Haiyan Song | Director | Purchase | 15.0K | $3.91 | $58.7K | SEC ↗ |
| Sep 9, 2026 | Sumeet Puri | Chief Accounting Officer | Sale | 34.2K | $4.13 | $141.1K | SEC ↗ |
| Jul 28, 2026 | Sumeet Puri | Chief Accounting Officer | Sale | 29.2K | $3.36 | $98.0K | SEC ↗ |
| Jul 28, 2026 | Nathan Kroeker | Chief Commercial Officer | Sale | 110.4K | $3.36 | $371.0K | SEC ↗ |
| Jul 28, 2026 | Joe Mastrangelo | Chief Executive Officer | Sale | 159.2K | $3.61 | $574.5K | SEC ↗ |
| Jul 7, 2026 | Nathan Kroeker | CCO and Interim CFO | Sale | 79.3K | $4.68 | $371.2K | SEC ↗ |
| Jun 30, 2026 | Sumeet Puri | Chief Accounting Officer | Sale | 8.8K | $5.86 | $51.7K | SEC ↗ |
| Jun 30, 2026 | Michelle Buczkowski | Chief Administration Officer | Sale | 11.5K | $5.87 | $67.3K | SEC ↗ |
| Jun 30, 2026 | Michael W Silberman | Chief Legal Officer | Sale | 15.0K | $5.87 | $88.0K | SEC ↗ |
| Jun 30, 2026 | Nathan Kroeker | CCO and Interim CFO | Sale | 35.3K | $5.86 | $206.8K | SEC ↗ |
| May 29, 2026 | Marian Walters | Director | Sale | 30.0K | $9.18 | $275.4K | SEC ↗ |
| May 22, 2026 | Marian Walters | Director | Sale | 22.3K | $7.20 | $160.7K | SEC ↗ |
| May 19, 2026 | Marian Walters | Director | Sale | 7.7K | $7.07 | $54.3K | SEC ↗ |
| Mar 10, 2026 | David Urban | Director | Purchase | 16.3K | $6.16 | $100.1K | SEC ↗ |
| Mar 5, 2026 | Joe Mastrangelo | Chief Executive Officer | Purchase | 23.9K | $6.58 | $157.3K | SEC ↗ |
| Mar 4, 2026 | Alexander Dimitrief | Director | Purchase | 15.0K | $6.04 | $90.6K | SEC ↗ |
| Mar 3, 2026 | Joe Mastrangelo | Chief Executive Officer | Purchase | 60.0K | $5.75 | $345.0K | SEC ↗ |
| Jan 26, 2026 | Nathan Kroeker | CCO and Interim CFO | Sale | 50.0K | $16.04 | $802.0K | SEC ↗ |
| Jan 23, 2026 | Michael W Silberman | Chief Legal Officer | Sale | 41.7K | $17.74 | $739.2K | SEC ↗ |
| Dec 9, 2025 | Russell Monoki Stidolph | Director | Sale | 766.1K | $14.97 | $11.5M | SEC ↗ |
| Dec 9, 2025 | Jeffrey S Bornstein | Director | Sale | 40.3K | $15.19 | $612.5K | SEC ↗ |
| Dec 9, 2025 | Marian Walters | Director | Sale | 50.0K | $15.81 | $790.5K | SEC ↗ |
| Sep 8, 2025 | Sumeet Puri | Chief Accounting Officer | Sale | 40.5K | $7.11 | $288.1K | SEC ↗ |
Showing the 25 most recent of 83 Form 4 filings for Eos Energy Enterprises, Inc..
Most active EOSE insiders
- Bryant R Riley18 filings
- Joe Mastrangelo13 filings
- Alexander Dimitrief8 filings
- Nathan Kroeker8 filings
- Sumeet Puri7 filings
Ask anything about EOSE insider activity
Use Trabud's AI agent to query Eos Energy Enterprises, Inc.'s Form 4 history in plain English — "Show me EOSE CEO purchases this year" or compare it against any other ticker.
Open the AI agentEOSE insider trading FAQ
Are Eos Energy Enterprises, Inc. insiders buying or selling?
In the last 12 months, Eos Energy Enterprises, Inc. insiders reported 5 open-market purchases ($751.7K) and 19 sales ($18.0M) — net selling of $17.3M. Since June 2020, Trabud has recorded 83 Form 4 filings for EOSE: 35 buys ($53.5M) and 48 sells ($54.4M). Over the full record that is net selling of $968.8K.
How many insiders trade EOSE stock?
18 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Eos Energy Enterprises, Inc.. The most recent filing was accepted on Sep 16, 2026.
Where does Trabud get EOSE insider trading data?
All EOSE insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.