Eos Energy Enterprises, Inc.
MX ˙ BMV
SecurityMX:EOSE / Eos Energy Enterprises, Inc.
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership452,435 shares
Latest Disclosed Value $ 1,988,452
Jpmorgan Chase & Co reports 53.17% increase in ownership of EOSE / Eos Energy Enterprises, Inc.

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 452,435 shares of Eos Energy Enterprises, Inc. (MX:EOSE) valued at $1,988,452 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 295,390 shares of Eos Energy Enterprises, Inc.. This represents a change in shares of 53.17% 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)
2026-05-13 2026-03-31 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 452,435 157,045 53.17 1,988 -41.27 0.0001
2026-02-11 2025-12-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 295,390 -835,618 -73.88 3,385 -73.72 0.0002
2025-11-26 2025-09-30 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 1,131,008 -32,724 -2.81 12,882 116.21 0.0008
2025-11-07 2025-09-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 1,131,008 -32,724 12,882 0.0008
2025-08-12 2025-06-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 1,163,732 1,163,732 5,958 0.0004
2024-11-08 2024-09-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 0 -1,351,938 -100.00 0 -100.00
2024-12-26 2024-06-30 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 1,351,938 728,828 116.97 1,717 167.71 0.0001
2024-08-12 2024-06-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 1,351,938 728,828 1,717 0.0001
2024-12-26 2024-03-31 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 623,110 550,066 753.06 642 711.39 0.0001
2024-05-10 2024-03-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 623,110 550,066 642 0.0001
2024-12-26 2023-12-31 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 73,044 0 0.00 80 -49.68 0.0000
2024-02-12 2023-12-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 73,044 0 80 0.0000
2023-11-14 2023-09-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 73,044 -10,408 -12.47 157 -56.63 0.0000
2023-08-11 2023-06-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 83,452 -24,150 -22.44 362 30.69 0.0000
2023-05-18 2023-03-31 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 107,602 -85,584 -44.30 277 0.0000
2023-05-11 2023-03-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 107,602 -85,584 277 0.0000
2023-02-13 2022-12-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 193,186 -31,279 -13.93 0 -100.00 0.0000
2022-11-14 2022-09-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 224,465 -954,589 -80.96 375 -73.72 0.0001
2022-08-11 2022-06-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 1,179,054 554,198 88.69 1,427 -45.37 0.0002
2022-05-11 2022-03-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 624,856 608,260 3,665.10 2,612 1,989.60 0.0003
2022-02-11 2021-12-31 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 16,596 -2,713 -14.05 125 -53.70 0.0000
2022-02-10 2021-12-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 16,596 -2,713 125 0.0000
2021-11-12 2021-09-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 19,309 -49,857 -72.08 270 -78.26 0.0000
2021-08-12 2021-06-30 13F EOS ENERGY ENTERPRISES COMMON 29415C101 69,166 69,166 1,242 0.0001
2021-05-12 2021-03-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 0 -13,000 -100.00 0 -100.00
2021-02-19 2020-12-31 13F/A-1 EOS ENERGY ENTERPRISES COMMON 29415C101 13,000 13,000 271 0.0000
2021-02-11 2020-12-31 13F EOS ENERGY ENTERPRISES COMMON 29415C101 13,000 271 0.0000
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.