As of November 7, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Eos Energy Enterprises, Inc. The largest reported stake is Cerberus Capital Management II, L.P.'s, at 32.6%. 15 filings are on record since July 8, 2025 (Schedule 13D/A, August 6, 2026).
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Key facts
- · Reporting person: Hudson Bay Capital Management LP · Sole voting: 0 · Shared voting: 30,568,009 · Sole dispositive: 0 · Shared dispositive: 30,568,009 · SCHEDULE 13G, 2026-11-06
- · Reporting person: Cerberus Capital Management II, L.P. · Sole voting: 175,829,986 · Shared voting: 0 · Sole dispositive: 175,829,986 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-08-06
- · Reporting person: BlackRock, Inc. · Sole voting: 25,354,673 · Shared voting: 0 · Sole dispositive: 25,903,425 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-28
- · Holder: Cerberus Capital Management II, L.P. · Percent: 31.1% · SCHEDULE 13D/A
- · Holder: Cerberus Capital Management II, L.P. · Percent: 31.1% · SCHEDULE 13D/A
Eos Energy Enterprises, Inc. has 15 Schedule 13D or 13G filings on record since 2025-07-08. 4 holders' latest filing reports 5% or more of common stock, par value $0.0001. Each figure below is the holder's own, as filed, with the filing linked.
Layoffs on record: 1 filing or notice, latest 2026-11-05 (layoff filings and notices).
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Cerberus Capital Management II, L.P. | 32.6% | 175,829,986 | SCHEDULE 13D/A, 2026-08-06 | 2026-08-04 |
| Hudson Bay Capital Management LP | 7.75% | 30,568,009 | SCHEDULE 13G, 2026-11-06 | 2026-09-30 |
| BlackRock, Inc. | 7.6% | 25,903,425 | SCHEDULE 13G/A, 2026-07-28 | 2026-06-30 |
| Vanguard Capital Management | 5.07% | 17,239,505 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Capital Ventures International | 4.5% | 14,340,893 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| Legal & General Group Plc | 0% | 0 | SCHEDULE 13G/A, 2025-07-08 | 2022-12-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on Eos Energy Enterprises, Inc. and the records around it.
Eos Energy Enterprises, Inc. elsewhere on the record
- Layoff notices Nov 2026
- Leadership changes Sep 2026
- Who owns it
Companies that share a holder
- Legal & General Group Plc also filed stake reports on 7 other companies: A10 NETWORKS, INC. (Jul 2025), Fastly, Inc. (Jul 2025), NETSCOUT SYSTEMS, INC. (Jul 2025)
- Hudson Bay Capital Management LP also filed stake reports on 34 other companies: Newbridge Acquisition Ltd (Nov 2026), FG Imperii Acquisition Corp. (Nov 2026), Inflection Point Acquisition Corp. III (Nov 2026)
- Capital Ventures International also filed stake reports on 45 other companies: AmpliTech Group, Inc. (Aug 2026), Bitdeer Technologies Group (Aug 2026), Compass Diversified Holdings (Aug 2026)
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What the Full Report on Eos Energy Enterprises, Inc. covers
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Which Company This Is
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Cerberus Capital Management II, L.P. | 175,829,986 | 0 | 175,829,986 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| CCM Denali Equity Holdings, LP | 175,829,986 | 0 | 175,829,986 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| CCM Denali Equity Holdings GP, LLC | 175,829,986 | 0 | 175,829,986 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| CCM Frontier JV Holdco, LLC | 20,017,772 | 0 | 20,017,772 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| CCM Frontier Power USA Holdings, LP | 20,017,772 | 0 | 20,017,772 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| CCM Frontier Power USA Holdings GP, LLC | 20,017,772 | 0 | 20,017,772 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| Cerberus GP Manager LLC | 20,017,772 | 0 | 20,017,772 | 0 | SCHEDULE 13D/A, 2026-08-06 |
| Hudson Bay Capital Management LP | 0 | 30,568,009 | 0 | 30,568,009 | SCHEDULE 13G, 2026-11-06 |
| Sander Gerber | 0 | 30,568,009 | 0 | 30,568,009 | SCHEDULE 13G, 2026-11-06 |
| BlackRock, Inc. | 25,354,673 | 0 | 25,903,425 | 0 | SCHEDULE 13G/A, 2026-07-28 |
The latest filing identifies Eos Energy Enterprises, Inc. by CUSIP 29415C101 and gives its principal executive office as TWO ALLEGHENY CENTER, NOVA TOWER 2, PITTSBURGH, PA 15212 (SCHEDULE 13G, 2026-11-06).
Source of funds (Item 3)
Item 3 is hereby amended and supplemented by the addition of the following: The information in Item 4 is incorporated herein by reference.Cerberus Capital Management II, L.P., SCHEDULE 13D/A, 2026-08-06
Purpose of Transaction (Item 4)
Cerberus Capital Management II, L.P.
Item 4 is hereby amended and supplemented by the addition of the following: Pursuant to the previously disclosed A&R Term Sheet, on August 4, 2026, the Issuer, CCM Frontier, and HBC MSF Capital Solutions Blocker II LLC, an affiliate of Hudson Bay Capital Management LP ("HBC"), consummated the closing of the funding (the "Funding") of Frontier Power USA Parent, LLC (the "JV Company"), a Delaware limited liability company and a joint venture among the Issuer, CCM Frontier and HBC. Pursuant to a Contribution and Warrants Purchase Agreement (the "Contribution and Warrants Purchase Agreement"), dated as of August 4, 2026, by and between CCM Frontier and the JV Company, CCM Frontier (i) caused the JV Company to receive the benefit of certain contracts, contacts, investment opportunities, subject matter expertise and other going concern value with respect to the Frontier power platform developed by affiliates of CCM Frontier and (ii) contributed cash and certain assets to the JV Company as detailed in the Contribution and Warrants Purchase Agreement. In exchange therefor and for certain funds previously contributed by CCM Frontier to the JV Company, the JV Company (A) issued to CCM Frontier 50,000,001 Class A-1 Units of the JV Company and 100,000,000 Class A-2 Units of the JV Company and (B) sold and transferred to CCM Frontier warrants to purchase 20,017,772 shares of Common Stock of the Issuer (the "JV Warrants") that were previously contributed to the JV Company by the …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-08-06; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-08 | Legal & General Group Plc | 5.4% | SCHEDULE 13G/A |
| 2025-07-08 | Legal & General Group Plc | 0% | SCHEDULE 13G/A |
| 2025-07-17 | BlackRock, Inc. | 6.5% | SCHEDULE 13G |
| 2025-07-29 | The Vanguard Group | 5.4% | SCHEDULE 13G |
| 2025-08-14 | Capital Ventures International | 5.8% | SCHEDULE 13G |
| 2026-02-13 | Capital Ventures International | 4.5% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-20 | Cerberus Capital Management II, L.P. | 32% | SCHEDULE 13D/A |
| 2026-04-29 | Vanguard Capital Management | 5.07% | SCHEDULE 13G |
| 2026-05-14 | Cerberus Capital Management II, L.P. | 32% | SCHEDULE 13D/A |
| 2026-07-02 | Cerberus Capital Management II, L.P. | 31.1% | SCHEDULE 13D/A |
| 2026-07-09 | Cerberus Capital Management II, L.P. | 31.1% | SCHEDULE 13D/A |
| 2026-07-28 | BlackRock, Inc. | 7.6% | SCHEDULE 13G/A |
| 2026-08-06 | Cerberus Capital Management II, L.P. | 32.6% | SCHEDULE 13D/A |
| 2026-11-06 | Hudson Bay Capital Management LP | 7.75% | SCHEDULE 13G |
Questions about who owns Eos Energy Enterprises, Inc.
Who owns Eos Energy Enterprises, Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of Eos Energy Enterprises, Inc.: Cerberus Capital Management II, L.P. (32.6%, Schedule 13D/A, filed 2026-08-06), Hudson Bay Capital Management LP (7.75%, Schedule 13G, filed 2026-11-06), BlackRock, Inc. (7.6%, Schedule 13G/A, filed 2026-07-28) and Vanguard Capital Management (5.07%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Eos Energy Enterprises, Inc.?
By the share each holder's latest filing reports, the largest holders of Eos Energy Enterprises, Inc. on this page are Cerberus Capital Management II, L.P. (32.6%), Hudson Bay Capital Management LP (7.75%) and BlackRock, Inc. (7.6%).
When did Cerberus Capital Management II, L.P. buy into Eos Energy Enterprises, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Cerberus Capital Management II, L.P. on this page is the Schedule 13D/A, filed 2026-04-20, reporting 32%; its latest, Schedule 13D/A filed 2026-08-06, reports 32.6%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 15 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Eos Energy Enterprises, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 16, 2026 | Leadership change: Nathan Kroeker departs, Chief Commercial Officer | — | Leadership changes | Source |
| August 25, 2026 | Leadership change: Michelle Buczkowski appointed, Chief Administration Officer | — | Leadership changes | Source |
| July 9, 2026 | Leadership change: Greg Nixon departs, Director, and 3 more | — | Leadership changes | Source |
| April 30, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| March 31, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.