Quick Takeaways
- EOSE - Eos Energy Enterprises, Inc. has 28 insiders with reported activity on this page.
- Net insider value flow over the last year: -$21,577,967.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 28 Insiders of Eos Energy Enterprises, Inc.
- Symbol
- EOSE on Nasdaq
- Location
- Edison, NJ
What Changed
- Buy value: $692,962; sell value: $22,270,929.
- Net share flow: -2,076,533.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$21,577,967.
Buys
$692,962
Shares: 115,150
Insiders: 3
Sells
$22,270,929
Shares: 2,191,683
Insiders: 8
Net
-$21,577,967
Shares: -2,076,533
Insiders: -5
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 115,150 | 0 | $692,962 | $0 | +$692,962 |
| 3-6 | 0 | 948,129 | $0 | $14,415,975 | -$14,415,975 |
| 6-9 | 0 | 90,501 | $0 | $683,097 | -$683,097 |
| 9-12 | 0 | 1,153,053 | $0 | $7,171,858 | -$7,171,858 |
Eos Energy Enterprises, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Russell Monoki Stidolph | Director | $36,781,582 | -$11,471,766 | -24% | Mixed | 05 Dec 2025 |
| Joe Mastrangelo | Chief Executive Officer, Director | $11,705,289 | -$2,968,162 | -20% | Mixed | 04 Mar 2026 |
| Nathan Kroeker | CCO and Interim CFO | $11,210,692 | -$2,799,055 | -20% | Mixed | 23 Jan 2026 |
| BRC Group Holdings, Inc. | 10%+ Owner | $6,285,247 | Mixed | 01 Aug 2022 | ||
| Michael W. Silberman | Chief Legal Officer | $5,462,037 | -$1,821,454 | -25% | Mixed | 22 Jan 2026 |
| Jeff McNeil | Director | $5,116,897 | Mixed | 04 Dec 2025 | ||
| Dr. Krishna Singh | Director | $3,018,286 | Mixed | 09 Apr 2021 | ||
| Eric M. Javidi | Chief Financial Officer | $2,813,937 | Mixed | 05 Mar 2025 | ||
| Wood River Capital, LLC | Former 10% Owner | $2,741,322 | Mixed | 28 Feb 2023 | ||
| Marian Walters | Director | $2,367,258 | -$1,185,500 | -33% | Mixed | 22 Dec 2025 |
| Jeffrey S. Bornstein | Director | $1,967,092 | -$612,536 | -24% | Mixed | 04 Dec 2025 |
| Alexander Dimitrief | Director | $1,705,476 | -$179,400 | -9.5% | Mixed | 02 Mar 2026 |
| Sumeet Puri | Chief Accounting Officer | $1,452,136 | -$640,194 | -31% | Mixed | 05 Sep 2025 |
| Claude Demby | Director | $1,135,031 | Mixed | 19 May 2025 | ||
| Michelle Buczkowski | Chief Administration Officer | $544,134 | Mixed | 02 Dec 2025 | ||
| David Urban | Director | $505,920 | +$100,100 | +25% | Mixed | 09 Mar 2026 |
| Randall B. Gonzales | Chief Financial Officer | $410,980 | Mixed | 11 Jan 2023 | ||
| Joseph Nigro | Director | $410,819 | Mixed | 22 Dec 2025 | ||
| Melissa Berube | General Counsel | $178,709 | Mixed | 27 Jan 2024 | ||
| Audrey Ann Zibelman | Director | $118,292 | Mixed | 30 Apr 2024 | ||
| Sagar Kurada | Chief Financial officer | $72,294 | Mixed | 03 Jan 2022 | ||
| John J. Tedone | Chief Accounting Officer | $60,676 | Mixed | 14 Feb 2023 | ||
| Daniel Shribman | Former Director | $39,737 | Filing P/S | 08 Nov 2022 | ||
| Nathaniel Fick | Director | Mixed | 24 Mar 2026 | |||
| Cerberus Capital Management II, L.P. | Director, 10%+ Owner | Mixed | 23 Jan 2025 | |||
| Gregory S. Nixon | Director | Mixed | 19 May 2025 | |||
| SPRING CREEK CAPITAL LLC | 10%+ Owner | Mixed | 02 May 2022 | |||
| Nicholas P. Robinson | Director | Mixed | 21 Jun 2024 |
Top shareholders of Eos Energy Enterprises, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Cerberus Capital Management II, L.P. |
13D/G
3/4/5
|
Director, 10%+ Owner |
32%
|
159,587,654
|
$791,554,764 | +$5,726,528 | 24 Mar 2026 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.5%
from 13D/G
|
23,426,616
|
$268,469,020 | — | 31 Dec 2025 | |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
|
Capital Ventures International |
4.5%
|
14,340,893
|
$241,213,820 | -$13,927,111 | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
5.5%
|
18,616,874
|
$213,349,376 | — | 31 Dec 2025 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
4.2%
|
14,270,294
|
$163,537,569 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.3%
|
7,689,841
|
$88,125,578 | — | 31 Dec 2025 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
|
Vanguard Capital Management |
5.1%
|
17,239,505
|
$85,507,945 | $0 | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.1%
|
7,205,507
|
$82,587,153 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
1.9%
|
6,578,167
|
$75,385,794 | — | 31 Dec 2025 | |
| Rubric Capital Management LP |
13F
|
Company |
1.9%
|
6,500,000
|
$74,490,000 | — | 31 Dec 2025 | |
| Electron Capital Partners, LLC |
13F
|
Company |
1.8%
|
6,121,896
|
$70,156,928 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
1.6%
|
5,349,993
|
$61,310,920 | — | 31 Dec 2025 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
1.2%
|
4,235,823
|
$48,542,575 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.96%
|
3,269,699
|
$37,470,751 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.94%
|
3,211,785
|
$36,807,056 | — | 31 Dec 2025 | |
| Russell Monoki Stidolph |
3/4/5
|
Director |
—
mixed-class rows
|
2,443,443
mixed-class rows
|
$36,781,582 | -$11,471,766 | 05 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.72%
|
2,462,575
|
$28,221,110 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.72%
|
2,461,988
|
$28,214,383 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.69%
|
2,359,506
|
$27,039,939 | — | 31 Dec 2025 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.66%
|
2,248,934
|
$25,772,783 | — | 31 Dec 2025 | |
| HRT FINANCIAL LP |
13F
|
Company |
0.58%
|
1,974,160
|
$22,623,000 | — | 31 Dec 2025 | |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. |
13F
|
Company |
0.57%
|
1,948,500
|
$22,329,811 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.57%
|
1,921,948
|
$22,025,525 | — | 31 Dec 2025 | |
| NewEdge Advisors, LLC |
13F
|
Company |
0.55%
|
1,865,543
|
$21,033,921 | — | 31 Dec 2025 | |
| Graham Capital Management, L.P. |
13F
|
Company |
0.53%
|
1,791,515
|
$20,530,762 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
0.49%
|
1,675,135
|
$19,197,042 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.44%
|
1,482,461
|
$16,989,003 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.41%
|
1,408,419
|
$16,140,481 | — | 31 Dec 2025 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
0.37%
|
1,256,795
|
$14,402,871 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.37%
|
1,243,136
|
$14,246,339 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.36%
|
1,210,636
|
$13,873,889 | — | 31 Dec 2025 | |
| BARINGS LLC |
13F
|
Company |
0.35%
|
1,204,430
|
$13,802,768 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.35%
|
1,182,863
|
$13,555,611 | — | 31 Dec 2025 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.33%
|
1,135,687
|
$13,015,000 | — | 31 Dec 2025 | |
| Jump Financial, LLC |
13F
|
Company |
0.32%
|
1,102,546
|
$12,635,178 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.32%
|
1,071,635
|
$12,280,936 | — | 31 Dec 2025 | |
| Joe Mastrangelo |
3/4/5
|
Chief Executive Officer, Director |
—
mixed-class rows
|
2,153,793
mixed-class rows
|
$11,705,289 | -$2,968,162 | 04 Mar 2026 | |
| Baker Avenue Asset Management, LP |
13F
|
Company |
0.3%
|
1,007,183
|
$11,542,316 | — | 31 Dec 2025 | |
| Zweig-DiMenna Associates LLC |
13F
|
Company |
0.29%
|
993,988
|
$11,391,102 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.29%
|
979,739
|
$11,229,000 | — | 31 Dec 2025 | |
| Nathan Kroeker |
3/4/5
|
CCO and Interim CFO |
0.19%
|
662,512
mixed-class rows
|
$11,210,692 | -$2,799,055 | 23 Jan 2026 | |
| AMERICAN FINANCIAL GROUP INC |
13F
|
Company |
0.29%
|
971,928
|
$11,138,295 | — | 31 Dec 2025 | |
| Caption Management, LLC |
13F
|
Company |
0.27%
|
914,727
|
$10,482,771 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.26%
|
895,829
|
$10,266,205 | — | 31 Dec 2025 | |
| Polar Capital Holdings Plc |
13F
|
Company |
0.26%
|
878,000
|
$10,061,880 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.25%
|
851,593
|
$9,760,000 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.25%
|
847,826
|
$9,716,086 | — | 31 Dec 2025 | |
| Universal- Beteiligungs- und Servicegesellschaft mbH |
13F
|
Individual |
0.25%
|
845,314
|
$9,687,299 | — | 31 Dec 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.25%
|
833,866
|
$9,499,485 | — | 31 Dec 2025 | |
| Walleye Capital LLC |
13F
|
Company |
0.24%
|
822,762
|
$9,428,853 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for Eos Energy Enterprises, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| David Urban | EOSE | Common Stock | Purchase | 35.2% | $100,100 | $6.16 | 16,250 | 62,471 | 09 Mar 2026 | Direct |
| Joe Mastrangelo | EOSE | Common Stock | Purchase | 1.63% | $157,262 | $6.58 | 23,900 | 1,487,126 | 04 Mar 2026 | Direct |
| Alexander Dimitrief | EOSE | Common Stock | Purchase | 6.81% | $90,600 | $6.04 | 15,000 | 235,221 | 02 Mar 2026 | Direct |
| Joe Mastrangelo | EOSE | Common Stock | Purchase | 4.28% | $345,000 | $5.75 | 60,000 | 1,463,226 | 02 Mar 2026 | Direct |
| Nathan Kroeker | EOSE | Common Stock | Sale | -7.02% | $802,000 | $16.04 | -50,000 | 662,512 | 26 Jan 2026 | Direct |
| Nathan Kroeker | EOSE | Common Stock | Options Exercise | 16.3% | 100,000 | 712,512 | 23 Jan 2026 | Direct | ||
| Nathan Kroeker | EOSE | Restricted Stock Units | Options Exercise | -100% | -100,000 | 0 | 23 Jan 2026 | Direct | ||
| Michael W. Silberman | EOSE | Common Stock | Sale | -12.8% | $739,173 | $17.74 | -41,667 | 283,279 | 23 Jan 2026 | Direct |
| Michael W. Silberman | EOSE | Common Stock | Options Exercise | 34.5% | 83,334 | 324,946 | 22 Jan 2026 | Direct | ||
| Michael W. Silberman | EOSE | Restricted Stock Units | Options Exercise | -50% | -83,334 | 83,333 | 22 Jan 2026 | Direct | ||
| Marian Walters | EOSE | Restricted Stock Units | Award | 1,782 | 1,782 | 22 Dec 2025 | Direct | |||
| Joseph Nigro | EOSE | Restricted Stock Units | Award | 3,565 | 3,565 | 22 Dec 2025 | Direct | |||
| Russell Monoki Stidolph | EOSE | Common Stock | Sale | -39.3% | $3,515,981 | $14.89 | -236,135 | 364,355 | 08 Dec 2025 | Direct |
| Russell Monoki Stidolph | EOSE | Common Stock | Tax liability | -14.2% | -60,304 | 365,123 | 08 Dec 2025 | Direct | ||
| Russell Monoki Stidolph | EOSE | Common Stock | Options Exercise | 88.9% | 296,439 | 630,006 | 08 Dec 2025 | Direct | ||
| Russell Monoki Stidolph | EOSE | Common Stock | Sale | -1.39% | $460,785 | $15.36 | -29,999 | 2,123,273 | 08 Dec 2025 | See footnote |
| Russell Monoki Stidolph | EOSE | Stock Option (Right to Buy) | Options Exercise | -100% | -296,439 | 0 | 08 Dec 2025 | Direct | ||
| Russell Monoki Stidolph | EOSE | Common Stock | Gift | -17.1% | -75,000 | 364,355 | 05 Dec 2025 | Direct | ||
| Russell Monoki Stidolph | EOSE | Common Stock | Other | 20.6% | 75,000 | 439,355 | 05 Dec 2025 | Direct | ||
| Russell Monoki Stidolph | EOSE | Common Stock | Other | -3.53% | -75,000 | 2,048,273 | 05 Dec 2025 | See footnote | ||
| Russell Monoki Stidolph | EOSE | Common Stock | Sale | -18.8% | $7,495,000 | $14.99 | -500,000 | 2,153,272 | 05 Dec 2025 | See footnote |
| Alexander Dimitrief | EOSE | Common Stock | Tax liability | -7.44% | -17,704 | 220,221 | 05 Dec 2025 | Direct | ||
| Alexander Dimitrief | EOSE | Common Stock | Options Exercise | 8.42% | 18,473 | 237,925 | 05 Dec 2025 | Direct | ||
| Alexander Dimitrief | EOSE | Stock Option (Right to Buy) | Options Exercise | -100% | -18,473 | 0 | 05 Dec 2025 | Direct | ||
| Jeffrey S. Bornstein | EOSE | Common Stock | Sale | -21.8% | $486,536 | $15.05 | -32,328 | 115,759 | 05 Dec 2025 | Direct |
| Jeff McNeil | EOSE | Common Stock | Gift | -13.9% | -16,000 | 99,179 | 04 Dec 2025 | Direct | ||
| Jeffrey S. Bornstein | EOSE | Common Stock | Sale | -100% | $126,000 | $15.75 | -8,000 | 0 | 04 Dec 2025 | By Whipstick Ventures LLC |
| Marian Walters | EOSE | Common Stock | Sale | -27% | $790,500 | $15.81 | -50,000 | 135,334 | 04 Dec 2025 | Direct |
| Marian Walters | EOSE | Common Stock | Tax liability | -11.1% | -16,933 | 135,334 | 04 Dec 2025 | Direct | ||
| Marian Walters | EOSE | Common Stock | Options Exercise | 58.6% | 68,473 | 185,334 | 04 Dec 2025 | Direct | ||
| Marian Walters | EOSE | Stock Option (Right to Buy) | Options Exercise | -100% | -68,473 | 0 | 04 Dec 2025 | Direct | ||
| Michelle Buczkowski | EOSE | Restricted Stock Units | Award | 234,742 | 234,742 | 02 Dec 2025 | Direct | |||
| Sumeet Puri | EOSE | Common Stock | Sale | -19.8% | $288,097 | $7.11 | -40,501 | 164,290 | 08 Sep 2025 | Direct |
| Sumeet Puri | EOSE | Common Stock | Options Exercise | 50.1% | 68,334 | 204,791 | 05 Sep 2025 | Direct | ||
| Sumeet Puri | EOSE | Restricted Stock Units | Options Exercise | -50% | -68,334 | 68,333 | 05 Sep 2025 | Direct | ||
| Marian Walters | EOSE | Common Stock | Sale | -27.2% | $395,000 | $7.90 | -50,000 | 133,794 | 03 Sep 2025 | Direct |
| Alexander Dimitrief | EOSE | Common Stock | Sale | -17% | $270,000 | $6.00 | -45,000 | 219,452 | 04 Aug 2025 | Direct |
| Joe Mastrangelo | EOSE | Common Stock | Sale | -10.6% | $990,002 | $5.94 | -166,667 | 1,403,226 | 29 Jul 2025 | Direct |
| Nathan Kroeker | EOSE | Common Stock | Sale | -14% | $590,288 | $5.94 | -99,375 | 612,512 | 29 Jul 2025 | Direct |
| Michael W. Silberman | EOSE | Common Stock | Sale | -21.4% | $389,812 | $5.94 | -65,625 | 241,612 | 29 Jul 2025 | Direct |
| Sumeet Puri | EOSE | Common Stock | Sale | -11.4% | $103,950 | $5.94 | -17,500 | 136,457 | 29 Jul 2025 | Direct |
| Joe Mastrangelo | EOSE | Common Stock | Options Exercise | 27% | 333,333 | 1,569,893 | 25 Jul 2025 | Direct | ||
| Joe Mastrangelo | EOSE | Restricted Stock Units | Options Exercise | -33.3% | -333,333 | 666,667 | 25 Jul 2025 | Direct | ||
| Nathan Kroeker | EOSE | Common Stock | Options Exercise | 45% | 220,833 | 711,887 | 25 Jul 2025 | Direct | ||
| Nathan Kroeker | EOSE | Restricted Stock Units | Options Exercise | -33.3% | -220,833 | 441,667 | 25 Jul 2025 | Direct | ||
| Michael W. Silberman | EOSE | Common Stock | Options Exercise | 90.4% | 145,833 | 307,237 | 25 Jul 2025 | Direct | ||
| Michael W. Silberman | EOSE | Restricted Stock Units | Options Exercise | -33.3% | -145,833 | 291,667 | 25 Jul 2025 | Direct | ||
| Sumeet Puri | EOSE | Common Stock | Options Exercise | 61% | 58,333 | 153,957 | 25 Jul 2025 | Direct | ||
| Sumeet Puri | EOSE | Restricted Stock Units | Options Exercise | -33.3% | -58,333 | 116,667 | 25 Jul 2025 | Direct | ||
| Nathan Kroeker | EOSE | Common Stock | Sale | -8.78% | $232,490 | $4.92 | -47,254 | 491,054 | 08 Jul 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.