Eos Energy Enterprises, Inc.
MX ˙ BMV
SecurityMX:EOSE / Eos Energy Enterprises, Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership7,812,894 shares
Latest Disclosed Value $ 38,759,327
Geode Capital Management, Llc reports 8.43% increase in ownership of EOSE / Eos Energy Enterprises, Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 7,812,894 shares of Eos Energy Enterprises, Inc. (MX:EOSE) valued at $38,759,327 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 7,205,507 shares of Eos Energy Enterprises, Inc.. This represents a change in shares of 8.43% 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)
2026-05-15 2026-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 7,812,894 607,387 8.43 38,759 -53.07 0.0013
2026-02-09 2025-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 7,205,507 998,332 16.08 82,587 16.80 0.0051
2025-11-12 2025-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 6,207,175 799,245 14.78 70,711 155.34 0.0045
2025-08-08 2025-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 5,407,930 2,722,495 101.38 27,692 172.69 0.0019
2025-05-13 2025-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,685,435 175,347 6.99 10,155 -16.80 0.0008
2025-02-12 2024-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,510,088 41,440 1.68 12,205 66.39 0.0009
2024-11-12 2024-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,468,648 376,494 18.00 7,335 176.06 0.0006
2024-08-09 2024-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,092,154 -1,487,534 -41.55 2,658 -27.94 0.0002
2024-05-13 2024-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 3,579,688 856,471 31.45 3,688 24.23 0.0003
2024-02-13 2023-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,723,217 407,796 17.61 2,969 -40.38 0.0003
2023-11-13 2023-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,315,421 106,952 4.84 4,979 -48.06 0.0006
2023-08-11 2023-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 2,208,469 1,421,781 180.73 9,585 374.22 0.0011
2023-05-15 2023-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 786,688 151,053 23.76 2,022 0.0003
2023-02-13 2022-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 635,635 82,250 14.86 1 -100.00 0.0001
2022-11-14 2022-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 553,385 135,305 32.36 924 82.97 0.0001
2022-08-12 2022-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 418,080 -198,802 -32.23 505 -80.41 0.0001
2022-05-13 2022-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 616,882 -79,334 -11.40 2,578 -50.75 0.0003
2022-02-11 2021-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 696,216 -738 -0.11 5,235 -46.46 0.0006
2021-11-12 2021-09-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 696,954 248,581 55.44 9,778 21.44 0.0013
2021-08-13 2021-06-30 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 448,373 141,777 46.24 8,052 33.18 0.0011
2021-05-12 2021-03-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 306,596 276,626 923.01 6,046 868.91 0.0009
2021-02-12 2020-12-31 13F EOS ENERGY ENTERPRISES COM CL A 29415C101 29,970 29,970 624 0.0001
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.