EOSE
Eos Energy Enterprises, Inc. · Manufacturing · Market cap $611.8M
Insiders sold $3.1M net in the last 90 days ·5 sellers, 1 buyer· 10 of 11 sales under Rule 10b5-1 plans· latest Form 4 filed Sep 16, 2026
Insider Buying
$752K
reported purchases (SEC code P)
Insider Selling
$18.0M
reported sales (SEC code S)
Unique Insiders
11
in the rolling window
Latest filing
Sep 16, 2026
Mastrangelo Joe
Eos Energy Enterprises, Inc. (EOSE) has 46 SEC Form 4 filings (91 transaction rows) in the rolling window, disclosed by 11 distinct insiders. Most recent filing: Sep 16, 2026.
Inside the rolling window, 11 insiders at Eos Energy Enterprises, Inc. reported 6 open-market purchases totaling $752K and 21 open-market sales totaling $18.0M. The most active filer is Chief Executive Officer Mastrangelo Joe with 4 filings. Insiders have net sold $3.6M over the trailing 6 months. The most recent open-market filing is a sale of 250,000 shares by Chief Executive Officer Mastrangelo Joe, dated Sep 16, 2026, worth $980K.
- Industry:Electrical Equipment & Parts
- CEO:Joseph R. Mastrangelo Jr.
- Employees:787
- HQ:Pittsburgh, PA, US
- IPO:2020-11-02
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Executive Officer | Sale | 250,000 | $980K | Sep 16 | -57.3% | SEC ↗ | |
| Chief Accounting Officer | Sale | 43,750 | $172K | Sep 16 | -57.3% | SEC ↗ | |
Song HaiyanFirst filing | Director | Purchase | 10,000 | $40K | Sep 15 | -58.7% | SEC ↗ |
Song HaiyanFirst filing | Director | Purchase | 5,000 | $19K | Sep 15 | -58.7% | SEC ↗ |
| Chief Accounting Officer | Sale | 34,167 | $141K | Sep 9 | -59.5% | SEC ↗ | |
| Chief Accounting Officer | Sale | 29,167 | $98K | Jul 28 | -50.1% | SEC ↗ | |
| Chief Commercial Officer | Sale | 110,417 | $371K | Jul 28 | -50.1% | SEC ↗ | |
Mastrangelo JoeFirst in 5 months | Chief Executive Officer | Sale | 159,154 | $575K | Jul 28 | -50.1% | SEC ↗ |
| CCO and Interim CFO | Sale | 79,309 | $371K | Jul 7 | -64.6% | SEC ↗ | |
Kroeker NathanFirst in 5 months | CCO and Interim CFO | Sale | 35,289 | $207K | Jun 30 | -71.4% | SEC ↗ |
Silberman Michael WFirst in 5 months | Chief Legal Officer | Sale | 14,998 | $88K | Jun 30 | — | SEC ↗ |
Puri SumeetFirst filing | Chief Accounting Officer | Sale | 8,823 | $52K | Jun 30 | — | SEC ↗ |
Buczkowski MichelleFirst filing | Chief Administration Officer | Sale | 11,469 | $67K | Jun 30 | — | SEC ↗ |
| Director | Sale | 30,000 | $275K | May 29 | — | SEC ↗ | |
| Director | Sale | 22,319 | $161K | May 22 | — | SEC ↗ | |
Walters MarianFirst in 5 months | Director | Sale | 7,681 | $54K | May 19 | — | SEC ↗ |
Urban DavidFirst filing | Director | Purchase | 16,250 | $100K | Mar 10 | — | SEC ↗ |
| Chief Executive Officer | Purchase | 23,900 | $157K | Mar 5 | — | SEC ↗ | |
DIMITRIEF ALEXANDERFirst filing | Director | Purchase | 15,000 | $91K | Mar 4 | — | SEC ↗ |
Mastrangelo JoeFirst filing | Chief Executive Officer | Purchase | 60,000 | $345K | Mar 3 | — | SEC ↗ |
Kroeker NathanFirst filing | CCO and Interim CFO | Sale | 50,000 | $802K | Jan 26 | — | SEC ↗ |
Silberman Michael WFirst filing | Chief Legal Officer | Sale | 41,667 | $739K | Jan 23 | — | SEC ↗ |
Stidolph Russell MonokiFirst filing | Director | Sale | 500,000 | $7.5M | Dec 8 | — | SEC ↗ |
Stidolph Russell MonokiFirst filing | Director | Sale | 266,134 | $4.0M | Dec 8 | — | SEC ↗ |
Walters MarianFirst filing | Director | Sale | 50,000 | $791K | Dec 8 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does EOSE have?
Eos Energy Enterprises, Inc. (EOSE) has 46 SEC Form 4 filings (91 transaction rows) in the rolling 365-day window, disclosed by 11 distinct insiders. Most recent filing: Sep 16, 2026.
When was the most recent SEC Form 4 filing for EOSE?
The most recent Form 4 filing for EOSE on Tracefour is dated Sep 16, 2026.
Who is the most active insider at EOSE?
The most active SEC Form 4 filer at EOSE in the rolling window is Chief Executive Officer Mastrangelo Joe, with 4 filings.
What is the net insider flow at EOSE over the last 6 months?
Over the trailing 180 days, insiders at EOSE have net sold $3.6M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at EOSE in the current window?
Inside the rolling window, insiders at EOSE bought $752K and sold $18.0M based on SEC Form 4 filings.
Can I get alerts for EOSE insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Eos Energy Enterprises, Inc. (EOSE). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Eos Energy Enterprises, Inc. is in the Manufacturing sector.