Eos Energy Enterprises, Inc. SEC filings EOSE
Eos Energy Enterprises, Inc. has 795 filings in SEC EDGAR's recent list, going back to Mar 2, 2020. Its latest annual report, Form ARS, was filed on Apr 14, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations, exit or restructuring costs). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Nov 5, 2026 | Nov 4, 2026 |
| 144 | Notice of proposed sale | Oct 29, 2026 | — |
| 4 | Insider transaction | Oct 29, 2026 | Oct 28, 2026 |
| 144 | Notice of proposed sale | Oct 29, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Oct 19, 2026 | Oct 19, 2026 |
| 144 | Notice of proposed sale | Sep 22, 2026 | — |
| 4 | Insider transaction | Sep 16, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Sep 16, 2026 | Sep 14, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
Sep 16, 2026 | Sep 10, 2026 |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 4 | Insider transaction | Sep 15, 2026 | Sep 11, 2026 |
| 8-K |
Current report
New debt, Regulation FD disclosure
|
Sep 14, 2026 | Sep 10, 2026 |
| 4 | Insider transaction | Sep 9, 2026 | Sep 5, 2026 |
| 144 | Notice of proposed sale | Sep 9, 2026 | — |
| S-3ASR | Automatic shelf registration | Aug 31, 2026 | — |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 25, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Aug 4, 2026 |
| 3 | Initial insider ownership | Aug 6, 2026 | Aug 4, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 6, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Aug 6, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Jul 21, 2026 |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| CERT | Filing | Aug 3, 2026 | — |
| 8-A12B | Form 8-a12b | Aug 3, 2026 | — |
| 4 | Insider transaction | Jul 28, 2026 | Jul 25, 2026 |
| 4 | Insider transaction | Jul 28, 2026 | Jul 25, 2026 |
| 4 | Insider transaction | Jul 28, 2026 | Jul 25, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| 144 | Notice of proposed sale | Jul 28, 2026 | — |
| 144 | Notice of proposed sale | Jul 28, 2026 | — |
| 144 | Notice of proposed sale | Jul 28, 2026 | — |
| 4 | Insider transaction | Jul 27, 2026 | Jul 23, 2026 |
| 4 | Insider transaction | Jul 27, 2026 | Jul 23, 2026 |
| 4 | Insider transaction | Jul 27, 2026 | Jul 23, 2026 |
| S-8 | Employee stock plan registration | Jul 23, 2026 | — |
| 8-K |
Current report
Other events
|
Jul 23, 2026 | Jul 21, 2026 |
| 25-NSE | Delisting notice | Jul 20, 2026 | — |
| 4 | Insider transaction | Jul 15, 2026 | Jul 13, 2026 |
| 4 | Insider transaction | Jul 15, 2026 | Jul 13, 2026 |
| 3 | Initial insider ownership | Jul 15, 2026 | Jul 9, 2026 |
| 3 | Initial insider ownership | Jul 15, 2026 | Jul 13, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jul 15, 2026 | Jul 15, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 9, 2026 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Jul 9, 2026 | Jul 8, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 3, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 5, 2026 |
| 144 | Notice of proposed sale | Jul 7, 2026 | — |
| CERT | Filing | Jul 2, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 2, 2026 | — |
| 8-A12B | Filing | Jul 2, 2026 | — |
| 8-K |
Current report
Other events
|
Jul 2, 2026 | Jul 2, 2026 |
| 424B2 | Prospectus | Jul 2, 2026 | — |
| 8-K |
Current report
Other events
|
Jul 1, 2026 | Jun 30, 2026 |
| 424B5 | Prospectus supplement | Jun 30, 2026 | — |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 424B5 | Prospectus supplement | Jun 30, 2026 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jun 30, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 12, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 8, 2026 |
| 3 | Initial insider ownership | Jun 9, 2026 | Jun 8, 2026 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | May 29, 2026 | May 28, 2026 |
| 144 | Notice of proposed sale | May 28, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 28, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 19, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 14, 2026 | — |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Material agreement, Results of operations, Unregistered share sale, Regulation FD disclosure
|
May 13, 2026 | May 12, 2026 |
| S-3ASR | Automatic shelf registration | May 13, 2026 | — |
| UPLOAD | Letter from the SEC | May 5, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Apr 30, 2026 | Apr 29, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| CORRESP | Letter to the SEC | Apr 22, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 20, 2026 | — |
| ARS | Annual report to shareholders | Apr 14, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 14, 2026 | Dec 31, 2025 |
| UPLOAD | Letter from the SEC | Apr 9, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 9, 2026 | Apr 9, 2026 |
| 3 | Initial insider ownership | Apr 3, 2026 | Mar 24, 2026 |
| DEFA14A | Additional proxy material | Mar 31, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 31, 2026 | Mar 30, 2026 |
| PRE 14A | Preliminary proxy statement | Mar 30, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 26, 2026 | Mar 24, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 9, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2026 | Feb 26, 2026 |
| 8-K |
Current report
Material agreement
|
Feb 17, 2026 | Feb 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 4 | Insider transaction | Jan 26, 2026 | Jan 23, 2026 |
| 144 | Notice of proposed sale | Jan 26, 2026 | — |
| 4 | Insider transaction | Jan 23, 2026 | Jan 22, 2026 |
| 144 | Notice of proposed sale | Jan 23, 2026 | — |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 22, 2025 | Dec 22, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 5, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 5, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 144 | Notice of proposed sale | Dec 5, 2025 | — |
| 144 | Notice of proposed sale | Dec 5, 2025 | — |
| 144 | Notice of proposed sale | Dec 5, 2025 | — |
| 144 | Notice of proposed sale | Dec 5, 2025 | — |
| 4 | Insider transaction | Dec 4, 2025 | Dec 2, 2025 |
| 144 | Notice of proposed sale | Dec 4, 2025 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Nov 24, 2025 | Nov 18, 2025 |
| 424B5 | Prospectus supplement | Nov 21, 2025 | — |
| FWP | Free writing prospectus | Nov 20, 2025 | — |
| 424B5 | Prospectus supplement | Nov 18, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Nov 18, 2025 | Nov 18, 2025 |
| 25-NSE | Delisting notice | Nov 17, 2025 | — |
| 3 | Initial insider ownership | Nov 13, 2025 | Nov 3, 2025 |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2025 | Nov 5, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 31, 2025 | Oct 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Oct 17, 2025 | Oct 16, 2025 |
| S-3ASR | Automatic shelf registration | Oct 2, 2025 | — |
| DEFA14A | Additional proxy material | Sep 26, 2025 | — |
| 4 | Insider transaction | Sep 8, 2025 | Sep 5, 2025 |
| 144 | Notice of proposed sale | Sep 8, 2025 | — |
| 4 | Insider transaction | Sep 3, 2025 | Sep 3, 2025 |
| 144 | Notice of proposed sale | Sep 3, 2025 | — |
| DEFA14A | Additional proxy material | Sep 2, 2025 | — |
| DEF 14A | Proxy statement | Sep 2, 2025 | Oct 16, 2025 |
| PRE 14A | Preliminary proxy statement | Aug 18, 2025 | Oct 16, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| 144 | Notice of proposed sale | Aug 6, 2025 | — |
| 4 | Insider transaction | Aug 5, 2025 | Aug 4, 2025 |
| 10-Q | Quarterly report | Jul 30, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2025 | Jul 30, 2025 |
| 4 | Insider transaction | Jul 29, 2025 | Jul 25, 2025 |
| 4 | Insider transaction | Jul 29, 2025 | Jul 25, 2025 |
| 4 | Insider transaction | Jul 29, 2025 | Jul 25, 2025 |
| 4 | Insider transaction | Jul 29, 2025 | Jul 25, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 29, 2025 | Jul 23, 2025 |
| 144 | Notice of proposed sale | Jul 29, 2025 | — |
| 144 | Notice of proposed sale | Jul 29, 2025 | — |
| 144 | Notice of proposed sale | Jul 29, 2025 | — |
| 144 | Notice of proposed sale | Jul 29, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 29, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 17, 2025 | — |
| 4 | Insider transaction | Jul 8, 2025 | Jul 3, 2025 |
| 4 | Insider transaction | Jul 8, 2025 | Jul 5, 2025 |
| 144 | Notice of proposed sale | Jul 8, 2025 | — |
| 144 | Notice of proposed sale | Jul 8, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 8, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 8, 2025 | — |
| 144 | Notice of proposed sale | Jul 7, 2025 | — |
| 8-K |
Current report
New debt, Regulation FD disclosure
|
Jul 1, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 26, 2025 |
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Company profile
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies (SIC 3690)
- Listed as
- EOSE (Nasdaq), EOSEW (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Pittsburgh, PA
- SEC filer status
- Non-accelerated filer
- SEC CIK
- 1805077
- Former names
- B. Riley Principal Merger Corp. II (until Nov 13, 2020)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.