Wellington Management Group LLP increased its position in Eos Energy Enterprises by 475.8% during the second quarter. The firm acquired 954,828 additional shares. Total holdings reached 1,155,515 shares by the end of the period.
The investment was valued at approximately $6.79 million at the quarter's close. Wellington Management now holds a 0.32% stake in the company.
The 13F filing was reported to the SEC on September 9, 2026. This follows a stock price surge after Eos announced a partnership with MN8 Energy and Google. The collaboration focuses on supplying long-duration battery storage for a solar project.