Quick Takeaways
- EOSE - Eos Energy Enterprises, Inc. has 28 insiders with reported activity on this page.
- Net insider value flow over the last year: -$17,733,925.
- 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: $18,426,887.
- Net share flow: -1,516,177.
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: -$17,733,925.
Buys
$692,962
Shares: 115,150
Insiders: 3
Sells
$18,426,887
Shares: 1,631,327
Insiders: 8
Net
-$17,733,925
Shares: -1,516,177
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 | 592,697 | $0 | $3,327,816 | -$3,327,816 |
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 | -$1,113,328 | -8.7% | Mixed | 04 Mar 2026 |
| Nathan Kroeker | CCO and Interim CFO | $11,210,692 | -$1,750,463 | -14% | 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 | -$1,128,985 | -17% | 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 | -$392,047 | -21% | 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
|
$983,059,949 | $0 | 12 May 2026 | |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
|
Capital Ventures International |
4.5%
|
14,340,893
|
$241,213,820 | -$13,927,111 | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.5%
from 13D/G
|
24,083,779
|
$119,455,546 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
|
Vanguard Capital Management · Company |
5.1%
|
17,239,505
|
$85,507,945 | $0 | 31 Mar 2026 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
3%
|
14,869,170
|
$73,751,083 | — | 31 Mar 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
2.8%
|
14,074,001
|
$69,807,045 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
1.6%
|
8,017,930
|
$39,768,933 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.6%
|
7,812,894
|
$38,759,327 | — | 31 Mar 2026 | |
| 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 | |
| MARSHALL WACE, LLP |
13F
|
Company |
1.3%
|
6,611,495
|
$32,793,014 | — | 31 Mar 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
1.3%
|
6,350,481
|
$31,498,386 | — | 31 Mar 2026 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
1.2%
|
6,100,772
|
$30,259,829 | — | 31 Mar 2026 | |
| Electron Capital Partners, LLC |
13F
|
Company |
1.1%
|
5,379,661
|
$26,683,118 | — | 31 Mar 2026 | |
| HRT FINANCIAL LP |
13F
|
Company |
1%
|
5,194,562
|
$25,765,000 | — | 31 Mar 2026 | |
| Crystal Cove Asset Management, LLC |
13F
|
Company |
0.86%
|
4,298,487
|
$21,320,496 | — | 31 Mar 2026 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
0.83%
|
4,138,555
|
$20,527,249 | — | 31 Mar 2026 | |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.69%
|
3,444,846
|
$17,086,436 | — | 31 Mar 2026 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
0.6%
|
3,007,414
|
$14,916,773 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.6%
|
2,987,574
|
$14,818,367 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.59%
|
2,960,784
|
$14,685,490 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
0.57%
|
2,842,808
|
$14,100,328 | — | 31 Mar 2026 | |
| Marex Group plc |
13F
|
Company |
0.55%
|
2,759,960
|
$13,689,402 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.55%
|
2,725,293
|
$13,517,453 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.53%
|
2,631,071
|
$13,050,112 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.5%
|
2,489,945
|
$12,350,127 | — | 31 Mar 2026 | |
| Joe Mastrangelo |
3/4/5
|
Chief Executive Officer, Director |
—
mixed-class rows
|
2,153,793
mixed-class rows
|
$11,705,289 | -$1,113,328 | 04 Mar 2026 | |
| Nathan Kroeker |
3/4/5
|
CCO and Interim CFO |
0.13%
|
662,512
mixed-class rows
|
$11,210,692 | -$1,750,463 | 23 Jan 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.45%
|
2,241,141
|
$11,116,059 | — | 31 Mar 2026 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.43%
|
2,165,101
|
$10,738,901 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.38%
|
1,897,473
|
$9,411,466 | — | 31 Mar 2026 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.37%
|
1,845,231
|
$9,152,346 | — | 31 Mar 2026 | |
| Polar Capital Holdings Plc |
13F
|
Company |
0.34%
|
1,690,000
|
$8,382,400 | — | 31 Mar 2026 | |
| Invesco Ltd. |
13F
|
Company |
0.33%
|
1,649,067
|
$8,179,372 | — | 31 Mar 2026 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.32%
|
1,607,820
|
$7,974,787 | — | 31 Mar 2026 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.31%
|
1,537,606
|
$7,626,525 | — | 31 Mar 2026 | |
| CAPITAL FUND MANAGEMENT S.A. |
13F
|
Company |
0.29%
|
1,434,592
|
$7,115,576 | — | 31 Mar 2026 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.27%
|
1,368,501
|
$6,787,765 | — | 31 Mar 2026 | |
| BRC Group Holdings, Inc. |
3/4/5
|
10%+ Owner |
—
mixed-class rows
|
5,711,648
mixed-class rows
|
$6,285,247 | — | 01 Aug 2022 | |
| BARINGS LLC |
13F
|
Company |
0.24%
|
1,204,430
|
$5,973,973 | — | 31 Mar 2026 | |
| DnB Asset Management AS |
13F
|
Company |
0.24%
|
1,191,468
|
$5,909,681 | — | 31 Mar 2026 | |
| Walleye Trading LLC |
13F
|
Company |
0.24%
|
1,188,056
|
$5,892,758 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.22%
|
1,117,889
|
$5,544,729 | — | 31 Mar 2026 | |
| Michael W. Silberman |
3/4/5
|
Chief Legal Officer |
—
mixed-class rows
|
366,612
mixed-class rows
|
$5,462,037 | -$1,128,985 | 22 Jan 2026 | |
| Quantinno Capital Management LP |
13F
|
Company |
0.22%
|
1,078,070
|
$5,347,227 | — | 31 Mar 2026 | |
| Legal & General Group Plc |
13F
|
Company |
0.21%
|
1,045,699
|
$5,186,667 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.21%
|
1,033,456
|
$5,127,000 | — | 31 Mar 2026 | |
| Jeff McNeil |
3/4/5
|
Director |
—
mixed-class rows
|
349,562
mixed-class rows
|
$5,116,897 | — | 04 Dec 2025 | |
| Baker Avenue Asset Management, LP |
13F
|
Company |
0.2%
|
1,003,090
|
$4,975,326 | — | 31 Mar 2026 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.2%
|
984,329
|
$4,882,271 | — | 31 Mar 2026 | |
| Universal- Beteiligungs- und Servicegesellschaft mbH |
13F
|
Individual |
0.19%
|
933,778
|
$4,631,539 | — | 31 Mar 2026 |
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.