Eos Energy Enterprises, Inc.
MX ˙ BMV
SecurityMX:EOSE / Eos Energy Enterprises, Inc.
InstitutionFourThought Financial Partners, LLC
Latest Disclosed Ownership198,656 shares
Latest Disclosed Value $ 985,334
FourThought Financial Partners, LLC reports 10.62% increase in ownership of EOSE / Eos Energy Enterprises, Inc.

On May 7, 2026 - FourThought Financial Partners, LLC filed a 13F-HR form disclosing ownership of 198,656 shares of Eos Energy Enterprises, Inc. (MX:EOSE) valued at $985,334 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 179,588 shares of Eos Energy Enterprises, Inc.. This represents a change in shares of 10.62% during the quarter.

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)
2026-05-07 2026-03-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 198,656 19,068 10.62 985 -52.14 0.0850
2026-02-06 2025-12-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 179,588 -9,668 -5.11 2,058 -4.50 0.1738
2025-11-13 2025-09-30 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 189,256 -10,245 -5.14 2,156 111.07 0.1895
2025-08-12 2025-06-30 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 199,501 -75,116 -27.35 1,021 -1.64 0.1008
2025-05-07 2025-03-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 274,617 0 0.00 1,038 -22.19 0.1086
2025-02-04 2024-12-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 274,617 274,617 1,335 0.1386
2024-08-13 2024-06-30 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 0 -274,617 -100.00 0 -100.00
2024-05-14 2024-03-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 274,617 51,174 22.90 283 16.05 0.0324
2024-02-13 2023-12-31 13F/A-1 EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 223,443 0 0.00 244 -49.37 0.0305
2024-02-06 2023-12-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 223,443 0 244 0.0306
2023-11-13 2023-09-30 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 223,443 153,443 219.20 480 58.42 0.0671
2023-08-11 2023-06-30 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 70,000 0 0.00 304 69.27 0.0399
2023-05-04 2023-03-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 70,000 0 0.00 180 73.79 0.0247
2023-02-07 2022-12-31 13F EOS ENERGY ENTERPRISES INC COM CL A Stock 29415C101 70,000 70,000 104 0.0150
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.