Eos Energy Enterprises, Inc.

SecurityEOSE / Eos Energy Enterprises, Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership77,387 shares
Latest Disclosed Value $ 383,840
Engineers Gate Manager LP reports 75.64% decrease in ownership of EOSE / Eos Energy Enterprises, Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 77,387 shares of Eos Energy Enterprises, Inc. (US:EOSE) valued at $383,840 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 317,625 shares of Eos Energy Enterprises, Inc.. This represents a change in shares of -75.64% during the quarter. The current value of the position is $634,573 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 77,387 -240,238 -75.64 384 -89.48 0.0048
2026-02-17 2025-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 317,625 -237,188 -42.75 3,640 -42.41 0.0432
2025-11-14 2025-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 554,813 -1,757,707 -76.01 6,319 -46.63 0.0724
2025-08-14 2025-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,312,520 2,312,520 11,840 0.1473
2025-02-14 2024-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 0 -37,690 -100.00 0 -100.00
2024-11-14 2024-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 37,690 -142,572 -79.09 112 -51.32 0.0022
2024-08-14 2024-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 180,262 121,736 208.00 229 280.00 0.0052
2024-05-15 2024-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 58,526 -119,459 -67.12 60 -69.07 0.0016
2024-02-14 2023-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 177,985 177,985 194 0.0055
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.