Eos能源企業公司

SecurityEOSE / Eos Energy Enterprises, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership385,583 shares
Latest Disclosed Value $ 1,974,184
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series ownership in EOSE / Eos Energy Enterprises, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 385,583 shares of Eos Energy Enterprises, Inc. (US:EOSE) valued at $1,974,185 USD as of June 30, 2025. The entity filed a previous NPORT-P on November 26, 2024 disclosing 0 shares of Eos Energy Enterprises, Inc.. The current value of the position is $2,729,928 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)
2025-08-26 2025-06-30 NP Eos Energy Enterprises EC US29415C1018 385,583 385,583 1,974 0.0443
2024-11-26 2024-09-30 NP Eos Energy Enterprises EC US29415C1018 0 -285,763 -100.00 0 -100.00
2024-08-26 2024-06-30 NP Eos Energy Enterprises EC US29415C1018 285,763 93,195 48.40 363 82.83 0.0074
2024-05-28 2024-03-31 NP Eos Energy Enterprises EC US29415C1018 192,568 0 0.00 198 -5.26 0.0041
2024-02-26 2023-12-31 NP Eos Energy Enterprises EC US29415C1018 192,568 17,906 10.25 210 -44.27 0.0045
2023-11-28 2023-09-30 NP Eos Energy Enterprises EC US29415C1018 174,662 -15,348 -8.08 376 -54.49 0.0098
2023-08-25 2023-06-30 NP Eos Energy Enterprises EC US29415C1018 190,010 120,520 173.44 825 184.14 0.0196
2022-05-26 2022-03-31 NP Eos Energy Enterprises EC US29415C1018 69,490 0 0.00 290 -44.44 0.0068
2022-02-25 2021-12-31 NP Eos Energy Enterprises EC US29415C1018 69,490 5,340 8.32 523 -42.00 0.0113
2021-11-24 2021-09-30 NP Eos Energy Enterprises EC US29415C1018 64,150 37,339 139.27 900 87.11 0.0198
2021-08-26 2021-06-30 NP Eos Energy Enterprises EC US29415C1018 26,811 26,811 482 0.0103
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.