Leadership changeCompany-reported
What was reported
Eos Energy Enterprises Appoints Cybersecurity and Software Leader Haiyan Song to Board of Directors, Names Marie Martin Chief Legal Officer in Planned Transition Song brings deep technology, cybersecurity, software, edge computing, and digital infrastructure expertise as Eos scales American-made energy storage for an increasingly complex grid Pittsburgh-based Martin brings two decades of legal and governance leadership at global industrial companies to strengthen Eos’ foundation as it scales U.S. manufacturing and commercial deployment PITTSBURGH, PA, JULY 9, 2026 — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long- duration energy storage (LDES) systems sourced and manufactured in the United States, today announced the appointment of Haiyan Song to its Board of Directors and a planned leadership transition of the Company’s Chief Legal Officer.U.S. Securities and Exchange Commission (EDGAR) · Exhibit 99.1 to 8-K · Jul 9, 2026 · Open the source ↗
What the evidence supports
Eos Energy Enterprises told the SEC (Form 8-K, Item 5.02) that there was a change involving its directors or officers, or their pay arrangements. The filing gives Jul 8, 2026 as the date of the earliest event reported. The company also furnished a press release, which is its own account rather than a regulatory statement.
What remains unknown
The reasons for the change beyond those stated, and what it means for the company's strategy or results.
Source passages
Exact excerpts from the source, with links. Quotes are checked character for character against our stored copy.
Press release lead paragraphEos Energy Enterprises Appoints Cybersecurity and Software Leader Haiyan Song to Board of Directors, Names Marie Martin Chief Legal Officer in Planned Transition Song brings deep technology, cybersecurity, software, edge computing, and digital infrastructure expertise as Eos scales American-made energy storage for an increasingly complex grid Pittsburgh-based Martin brings two decades of legal and governance leadership at global industrial companies to strengthen Eos’ foundation as it scales U.S. manufacturing and commercial deployment PITTSBURGH, PA, JULY 9, 2026 — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long- duration energy storage (LDES) systems sourced and manufactured in the United States, today announced the appointment of Haiyan Song to its Board of Directors and a planned leadership transition of the Company’s Chief Legal Officer.U.S. Securities and Exchange Commission (EDGAR) · Exhibit 99.1 to 8-K · Jul 9, 2026 · Open the source ↗
Revision history
- Revision 1 · Nov 11, 2026, 21:09 UTC
Eos Energy Enterprises reports changes involving its directors or officers (Form 8-K, Item 5.02)
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