EOS ENERGY ENTERPRISES, INC.
Ownership & governance
Executives 5Directors 10Avg age 58Avg tenure 3.3y
JM
Joseph Mastrangelo
Chief Executive Officer
Age 57Since 2019-07-31Profile →
+14
Executives5
JM
Joseph Mastrangelo→
Chief Executive Officer
Age 57Since 2019-07-31
AL
Alessandro Lagi→
Director of Finance/CFO
Age 50Since 2026-06-07
JM
John Mahaz→
Chief Operating Officer
—Since 2025-08-17
MB
Michelle Buczkowski→
Chief Administrative Officer
Age 41Since 2025-10-31
MS
Michael Silberman→
Compliance Officer
Age 55Since 2024-01-30
Board of directors10
JM
Joseph Mastrangelo→
Director/Board Member
Age 57Since 2019-12-31
AD
Alexander Dimitrief→
Director/Board Member
Age 67Since 2020-11-15
MW
Marian Walters→
Director/Board Member
Age 63Since 2020-11-15
CD
Claude Demby→
Director/Board Member
Age 61Since 2021-08-26
JB
Jeffrey Bornstein→
Director/Board Member
Age 59Since 2022-09-06
JM
Jeffrey McNeil→
Director/Board Member
Age 64Since 2023-10-05
NR
Nicholas Robinson→
Director/Board Member
Age 46Since 2024-06-20
GN
Gregory Nixon→
Director/Board Member
Age 62Since 2024-07-23
Shareholders5
| Name | Stake | Shares |
|---|---|---|
| BlackRock Advisors LLC | 6.599 % | 22,406,085 |
| Driehaus Capital Management LLC | 4.38 % | 14,869,170 |
| Vanguard Capital Management LLC | 4.37 % | 14,835,437 |
| Two Sigma Investments LP | 4.145 % | 14,074,001 |
| STATE STREET CORPORATION | 2.362 % | 8,017,930 |
Catalog · 2026-07-09
Registry officers15
| Name | Role | Since | Shares |
|---|---|---|---|
| Alessandro Lagi | Director of Finance/CFO | 2026-06-07 | - |
| John Mahaz | Chief Operating Officer | 2025-08-17 | - |
| Joseph Mastrangelo | Chief Executive Officer | 2019-07-31 | - |
| Joseph Nigro | Chairman | 2025-12-31 | - |
| Michelle Buczkowski | Chief Administrative Officer | 2025-10-31 | - |
| Alexander Dimitrief | Director/Board Member | 2020-11-15 | - |
| Claude Demby | Director/Board Member | 2021-08-26 | - |
| David Urban | Director/Board Member | 2024-12-15 | - |
Registry · as of 2026-07-09
Institutional (13F)
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Fund membership
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Street consensus
Consensus buyMean target 6.5Range 4–10Analysts 9
4Mean 6.510
- Strong buy 1
- Buy 3
- Hold 7
Broker actions40 of 56
| Firm | Action | To | Target | Date |
|---|---|---|---|---|
| Needham | Maintained | Buy | 10 | 2026-09-15 |
| Roth Capital | Maintained | Neutral | 4.5 | 2026-09-10 |
| B. Riley Securities | Maintained | Neutral | 5 | 2026-08-14 |
| TD Cowen | Maintained | Hold | 4 | 2026-08-06 |
| Stifel | Maintained | Buy | 9 | 2026-08-06 |
| Truist Securities | Initiated | Buy | 7 | 2026-07-14 |
| Stifel | Maintained | Buy | 10 | 2026-07-13 |
| Needham | Initiated | Buy | 11 | 2026-05-22 |
| TD Cowen | Maintained | Hold | 8 | 2026-05-14 |
| JP Morgan | Maintained | Neutral | 6 | 2026-04-16 |
| B. Riley Securities | Maintained | Neutral | 8 | 2026-03-05 |
| Guggenheim | Downgrade | Neutral | — | 2026-02-27 |
Firm rows and rating mix from Yahoo Finance; mean target is Yahoo’s aggregate until OpenFilings derives consensus from broker rows.