Eos Energy Enterprises, Inc.
EOSEW- Exchange
- Nasdaq
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies
- SEC CIK
- 0001805077
In the last 90 days, Eos Energy Enterprises, Inc. insiders filed 1 open-market purchase and 11 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Other share classesEOSE
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Eos Energy Enterprises, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 1 filing
- 1 insider, $58.7K in total
- Open-market sells
- 11 filings
- 5 insiders, $3.12M in total
- Insiders trading
- 6
- Net value
- −$3.06M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Eos Energy Enterprises, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Puri Sumeet | Chief Accounting Officer | 280,195 | Sep 16, 2026 | 5 |
| Mastrangelo Joe | Chief Executive Officer | 2,308,704 | Sep 16, 2026 | 9 |
| Song Haiyan | Director | 15,000 | Sep 15, 2026 | 2 |
| Buczkowski Michelle | Chief Commercial Officer | 61,827 | Aug 26, 2026 | 4 |
| Lagi Alessandro | Chief Financial Officer | – | Aug 26, 2026 | 2 |
| CCM Frontier JV Holdco, LLC | Director, 10% Owner | – | Aug 6, 2026 | 1 |
| CCM Frontier Power USA Holdings, LP | Director, 10% Owner | – | Aug 6, 2026 | 1 |
| CCM Frontier Power USA Holdings GP, LLC | Director, 10% Owner | – | Aug 6, 2026 | 1 |
| Cerberus GP Manager LLC | Director, 10% Owner | – | Aug 6, 2026 | 1 |
| Dimitrief Alexander | Director | 11,377Indirect | Aug 6, 2026 | 6 |
| Walters Marian | Director | 171,634 | Aug 6, 2026 | 9 |
| Bornstein Jeffrey S | Director | 143,806 | Aug 6, 2026 | 4 |
| Urban David | Director | 97,767 | Aug 6, 2026 | 4 |
| Nigro Joseph | Director | 41,723 | Aug 6, 2026 | 5 |
| Demby Claude | Director | 157,400 | Aug 6, 2026 | 3 |
| Kroeker Nathan | Chief Commercial Officer | 904,471 | Aug 6, 2026 | 5 |
| Martin Marie Batz | Chief Legal Officer | – | Jul 15, 2026 | 1 |
| Silberman Michael W | Chief Legal Officer | 298,277 | Jun 30, 2026 | 2 |
| Nixon Gregory S. | Director | 13,867 | Jun 9, 2026 | 2 |
| McNeil Jeff | Director | 122,290 | Jun 9, 2026 | 3 |
| Stidolph Russell Monoki | Director | 364,355 | Dec 8, 2025 | 1 |
| Javidi Eric M | Chief Financial Officer | – | Mar 19, 2025 | 0 |
| CCM Denali Equity Holdings, LP | Director, 10% Owner | 0Indirect | Jan 27, 2025 | 0 |
| CCM Denali Equity Holdings GP, LLC | Director, 10% Owner | 0Indirect | Jan 27, 2025 | 0 |
| Cerberus Capital Management II, L.P. | Director, 10% Owner | 0Indirect | Jan 27, 2025 | 0 |
| Zibelman Audrey Ann | Director | 104,897 | May 2, 2024 | 0 |
| Berube Melissa | General Counsel | 171,836 | Jan 30, 2024 | 0 |
| Koch Industries Inc | Other: Former 10% Owner | – | May 4, 2023 | 0 |
| Wood River Capital, LLC | Other: Former 10% Owner | – | May 4, 2023 | 0 |
| Tedone John J | Chief Accounting Officer | 25,487 | Feb 16, 2023 | 0 |
| Gonzales Randall B | Chief Financial Officer | 188,094 | Jan 13, 2023 | 0 |
| Shribman Daniel | Other: Former Director | 33,960 | Nov 10, 2022 | 0 |
| Riley Bryant R | 10% Owner | 5,369,778Indirect | Aug 1, 2022 | 0 |
| BRC Group Holdings, Inc. | 10% Owner | 5,369,778Indirect | Aug 1, 2022 | 0 |
| BRF Investments, LLC | 10% Owner | 5,369,778Indirect | Aug 1, 2022 | 0 |
| Spring Creek Capital LLC | 10% Owner | 0 | May 3, 2022 | 0 |
| Singh Krishna Pal | Director | 2,794,709Indirect | Mar 30, 2022 | 0 |
| Kurada Sagar | Chief Financial officer | 66,939 | Jan 5, 2022 | 0 |
| AltEnergy Storage Bridge LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| AltEnergy Transmission LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| AltEnergy Storage VI LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| AltEnergy Storage II LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| AltEnergy Storage V LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| AltEnergy Storage Bridge Phase II LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| AltEnergy, LLC | 10% Owner | 2,653,272Indirect | Jan 3, 2022 | 0 |
| BRC Partners Opportunity Fund, LP | 10% Owner | 5,765,942Indirect | Oct 18, 2021 | 0 |
| B. Riley Capital Management, LLC | 10% Owner | 5,765,942Indirect | Oct 18, 2021 | 0 |
| BRC Partners Management GP, LLC | 10% Owner | 5,765,942Indirect | Oct 18, 2021 | 0 |
| B. Riley Securities, Inc. | 10% Owner | 0Indirect | Sep 21, 2021 | 0 |
| B. Riley Principal Investments, LLC | 10% Owner | 0Indirect | Sep 21, 2021 | 0 |
Showing the 50 most recent filers.
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 16, 2026 (view filing)4:28 PM ET | Sep 16 | Same day | Puri SumeetChief Accounting Officer | SSale | −43.8K | $3.92 | −$171.5K | −13.5%280.2K after | 10b5-1 |
| Sep 16, 2026 (view filing)4:27 PM ET | Sep 16 | Same day | Mastrangelo JoeChief Executive Officer | SSale | −250.0K | $3.92 | −$980.0K | −9.8%2.31M after | 10b5-1 |
| Sep 15, 2026 (view filing)8:56 AM ET | Sep 11-14 | 4 days | Song HaiyanDirector | PPurchase | +15.0K | $3.91 | +$58.7K | New position15.0K after | 2 lots |
| Sep 9, 2026 (view filing)6:05 PM ET | Sep 9 | Same day | Puri SumeetChief Accounting Officer | SSale | −34.2K | $4.13 | −$141.1K | −12.6%236.4K after | 10b5-1 |
| Jul 28, 2026 (view filing)5:03 PM ET | Jul 28 | Same day | Puri SumeetChief Accounting Officer | SSale | −29.2K | $3.36 | −$98.0K | −12.6%202.3K after | 10b5-1 |
| Jul 28, 2026 (view filing)5:02 PM ET | Jul 28 | Same day | Kroeker NathanChief Commercial Officer | SSale | −110.4K | $3.36 | −$371.0K | −11.1%887.5K after | 10b5-1 |
| Jul 28, 2026 (view filing)5:02 PM ET | Jul 27 | 1 day | Mastrangelo JoeChief Executive Officer | SSale | −159.2K | $3.61 | −$574.5K | −7.6%1.95M after | |
| Jul 7, 2026 (view filing)5:20 PM ET | Jul 7 | Same day | Kroeker NathanCCO and Interim CFO | SSale | −79.3K | $4.68 | −$371.2K | −9.3%777.1K after | 10b5-1 |
| Jun 30, 2026 (view filing) | Jun 30 | Same day | Puri SumeetChief Accounting Officer | SSale | −8.82K | $5.86 | −$51.7K | −4.8%173.1K after | 10b5-1 |
| Jun 30, 2026 (view filing) | Jun 30 | Same day | Buczkowski MichelleChief Administration Officer | SSale | −11.5K | $5.87 | −$67.3K | −16.2%59.2K after | 10b5-1 |
| Jun 30, 2026 (view filing) | Jun 30 | Same day | Silberman Michael WChief Legal Officer | SSale | −15.0K | $5.87 | −$88.0K | −4.8%298.3K after | 10b5-1 |
| Jun 30, 2026 (view filing) | Jun 30 | Same day | Kroeker NathanCCO and Interim CFO | SSale | −35.3K | $5.86 | −$206.8K | −4.8%697.8K after | 10b5-1 |
| May 29, 2026 (view filing) | May 28 | 1 day | Walters MarianDirector | SSale | −30.0K | $9.18 | −$275.4K | −15.9%158.4K after | |
| May 22, 2026 (view filing) | May 20 | 2 days | Walters MarianDirector | SSale | −22.3K | $7.20 | −$160.7K | −12.3%158.4K after | |
| May 19, 2026 (view filing) | May 19 | Same day | Walters MarianDirector | SSale | −7.68K | $7.07 | −$54.3K | −5.4%135.3K after | |
| Mar 10, 2026 (view filing) | Mar 9 | 1 day | Urban DavidDirector | PPurchase | +16.3K | $6.16 | +$100.1K | +35.2%62.5K after | |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Mastrangelo JoeChief Executive Officer | PPurchase | +23.9K | $6.58 | +$157.3K | +1.6%1.49M after | |
| Mar 4, 2026 (view filing) | Mar 2 | 2 days | Dimitrief AlexanderDirector | PPurchase | +15.0K | $6.04 | +$90.6K | +6.8%235.2K after | |
| Mar 3, 2026 (view filing) | Mar 2 | 1 day | Mastrangelo JoeChief Executive Officer | PPurchase | +60.0K | $5.75 | +$345.0K | +4.3%1.46M after | |
| Jan 26, 2026 (view filing) | Jan 26 | Same day | Kroeker NathanCCO and Interim CFO | SSale | −50.0K | $16.04 | −$802.0K | −7.0%662.5K after | 10b5-1 |
| Jan 23, 2026 (view filing) | Jan 23 | Same day | Silberman Michael WChief Legal Officer | SSale | −41.7K | $17.74 | −$739.2K | −12.8%283.3K after | 10b5-1 |
| Dec 8, 2025 (view filing) | Dec 5-8 | 3 days | Stidolph Russell MonokiDirector | SSale | −530.0K | $15.01 | −$7.96M | −20.0%2.12M after | 2 lots |
| Dec 8, 2025 (view filing) | Dec 8 | Same day | Stidolph Russell MonokiDirector | SSale | −236.1K | $14.89 | −$3.52M | −39.3%364.4K after | 2 lots |
| Dec 8, 2025 (view filing) | Dec 5 | 3 days | Bornstein Jeffrey SDirector | SSale | −32.3K | $15.05 | −$486.5K | −21.8%115.8K after | |
| Dec 8, 2025 (view filing) | Dec 4 | 4 days | Bornstein Jeffrey SDirector | SSale | −8.00K | $15.75 | −$126.0K | −100.0%0 after | |
| Dec 8, 2025 (view filing) | Dec 4 | 4 days | Walters MarianDirector | SSale | −50.0K | $15.81 | −$790.5K | −27.0%135.3K after | |
| Sep 8, 2025 (view filing) | Sep 8 | Same day | Puri SumeetChief Accounting Officer | SSale | −40.5K | $7.11 | −$288.1K | −19.8%164.3K after | 2 lots10b5-1 |
| Sep 3, 2025 (view filing) | Sep 3 | Same day | Walters MarianDirector | SSale | −50.0K | $7.90 | −$395.0K | −27.2%133.8K after | |
| Aug 5, 2025 (view filing) | Aug 4 | 1 day | Dimitrief AlexanderDirector | SSale | −45.0K | $6.00 | −$270.0K | −17.0%219.5K after | |
| Jul 29, 2025 (view filing) | Jul 29 | Same day | Mastrangelo JoeChief Executive Officer | SSale | −166.7K | $5.94 | −$990.0K | −10.6%1.40M after | 10b5-1 |
| Jul 29, 2025 (view filing) | Jul 29 | Same day | Kroeker NathanCCO and Interim CFO | SSale | −99.4K | $5.94 | −$590.3K | −14.0%612.5K after | 10b5-1 |
| Jul 29, 2025 (view filing) | Jul 29 | Same day | Silberman Michael WGeneral Counsel | SSale | −65.6K | $5.94 | −$389.8K | −21.4%241.6K after | 10b5-1 |
| Jul 29, 2025 (view filing) | Jul 29 | Same day | Puri SumeetChief Accounting Officer | SSale | −17.5K | $5.94 | −$104.0K | −11.4%136.5K after | 10b5-1 |
| Jul 8, 2025 (view filing) | Jul 7-8 | 1 day | Kroeker NathanCCO and Interim CFO | SSale | −71.4K | $5.02 | −$358.2K | −12.7%491.1K after | 2 lots10b5-1 |
| Jul 8, 2025 (view filing) | Jul 8 | Same day | Mastrangelo JoeChief Executive Officer | SSale | −127.2K | $4.92 | −$625.6K | −9.3%1.24M after | 10b5-1 |
| May 16, 2025 (view filing) | May 16 | Same day | Mastrangelo JoeChief Executive Officer | SSale | −270.4K | $6.86 | −$1.85M | −19.6%1.11M after | |
| May 16, 2025 (view filing) | May 16 | Same day | Kroeker NathanChief Commercial Officer | SSale | −152.9K | $6.86 | −$1.05M | −27.5%403.8K after | |
| May 16, 2025 (view filing) | May 16 | Same day | Silberman Michael WGeneral Counsel | SSale | −100.9K | $6.86 | −$692.5K | −38.5%161.4K after | |
| May 16, 2025 (view filing) | May 16 | Same day | Puri SumeetChief Accounting Officer | SSale | −36.2K | $6.86 | −$248.1K | −27.4%95.6K after | |
| Sep 16, 2024 (view filing) | Sep 12 | 4 days | Bornstein Jeffrey SDirector | SSale | −132.7K | $2.63 | −$349.1K | −94.3%8.00K after | |
| Sep 16, 2024 (view filing) | Sep 12 | 4 days | Bornstein Jeffrey SDirector | SSale | −30.0K | $2.62 | −$78.6K | −26.1%84.9K after | |
| Aug 19, 2024 (view filing) | Aug 15-16 | 4 days | Dimitrief AlexanderDirector | PPurchase | +3.00K | $1.90 | +$5.69K | +1.8%172.3K after | 2 lots |
| Aug 15, 2024 (view filing) | Aug 13 | 2 days | Dimitrief AlexanderDirector | PPurchase | +2.00K | $1.68 | +$3.36K | +1.2%169.3K after | |
| Aug 12, 2024 (view filing) | Aug 9 | 3 days | Mastrangelo JoeChief Executive Officer | PPurchase | +52.8K | $1.43 | +$75.5K | +6.2%909.8K after | |
| Mar 12, 2024 (view filing) | Mar 8 | 4 days | Dimitrief AlexanderDirector | PPurchase | +5.00K | $1.13 | +$5.65K | +100.0%10.0K after | |
| Sep 21, 2023 (view filing) | Sep 21 | Same day | Mastrangelo JoeChief Executive Officer | PPurchase | +36.5K | $2.05 | +$74.8K | +6.6%590.8K after | |
| Sep 8, 2023 (view filing) | Sep 7 | 1 day | Demby ClaudeDirector | SSale | −20.1K | $2.78 | −$56.0K | −24.5%62.0K after | |
| Aug 1, 2023 (view filing) | Jul 28 | 4 days | Dimitrief AlexanderDirector | PPurchase | +5.00K | $2.13 | +$10.7K | New position5.00K after | |
| Jul 28, 2023 (view filing) | Jul 28 | Same day | Mastrangelo JoeChief Executive Officer | PPurchase | +31.2K | $2.23 | +$69.6K | +6.0%554.3K after | |
| Jul 28, 2023 (view filing) | Jul 28 | Same day | Kroeker NathanChief Financial Officer | PPurchase | +4.00K | $2.15 | +$8.60K | New position4.00K after |