Eos Energy Enterprises (EOSE)Driehaus Capital Management LLC reduced its stake -1.31M shares

13.6M

Shares reported · -1.31M vs prior quarter

0.46%

Disclosed portfolio weight

$79.7M

Reported value

Holdings as of

Jun 30, 2026

Filed

Aug 14, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jun 30, 2026Company filing · Form 8-K · Material agreement, Other newsSigned an important agreement, and reported other company news
2. Jul 8, 2026Company filing · Form 8-K · Executive change, Other newsChanged a top executive or board member, and reported other company news“On July 8, 2026, Greg Nixon resigned from his role as a preferred stock director of the Board of Directors (the “Board”) of Eos Energy Enterprises, Inc. (the “Company”), effective July 8, 2026, to devote more time to other business ventures.”
3. Jul 15, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors (and 1 more item)
4. Aug 3, 2026Company filing · Form 8-K · Material agreement, Unregistered sharesSigned an important agreement, and sold new shares without registering them
5. Aug 5, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Aug 24, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On August 24, 2026, Eos Energy Enterprises, Inc. (the "Company") implemented a leadership transition designed to align its commercial operations by bringing sales, business development, government affairs, marketing and communications under a unified commercial organization.”
2. Sep 10, 2026Company filing · Form 8-K · New debt, Reg FDTook on new debt or obligations, and shared information with investors
3. Sep 10, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“In connection with the transition of his role and pending separation, on September 10, 2026, the Company entered into a separation agreement with Mr. Kroeker (the “Separation Agreement”).”

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Eos Energy Enterprises

For Eos Energy Enterprises, OQRO holds 3 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its EOSE page.

How this filing works

• SEC Form 13F

Other disclosures at Eos Energy Enterprises

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRFeb 17, 2026
• SEC Form 13F-HRFeb 13, 2026

Everything OQRO holds on this company is on its EOSE page.