# EOS ENERGY ENTERPRISES INC COM CL A

EOS ENERGY ENTERPRISES INC COM CL A is a security (CUSIP 29415C101) tracked across SEC portfolio filings. 350 institutional managers reported $1.4B on Form 13F as of 2026-06-30; 20 registered fund positions totaling $39.4M via N-PORT as of 2026-06-30.

## Summary

- Issuer: EOS ENERGY ENTERPRISES INC
- Class: COM CL A
- CUSIP: 29415C101
- Asset category: EC
- 13F holders: 350
- 13F value: $1.4B
- 13F period: 2026-06-30
- N-PORT fund positions: 20
- N-PORT value: $39.4M
- N-PORT report: 2026-06-30

## Top institutional holders (Form 13F)

_Showing 15 of 350 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $213.3M | 18,616,874 |
| BlackRock, Inc. | New York, NY | $119.5M | 24,083,779 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $101.2M | 6,350,481 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $89.1M | 6,100,772 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $74.4M | 14,074,001 |
| Driehaus Capital Management LLC | Chicago, IL | $73.8M | 14,869,170 |
| [Walleye Trading LLC](https://search.stillhousedata.com/firm/136196) | NEW YORK, NY | $62.7M | 907,229 |
| STATE STREET CORP | BOSTON, MA | $39.8M | 8,017,930 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $38.8M | 7,812,894 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $36.7M | 72,762 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $32.8M | 6,611,495 |
| [Caption Management, LLC](https://search.stillhousedata.com/firm/173841) | OKLAHOMA CITY, OK | $29.5M | 176,400 |
| Crystal Cove Asset Management, LLC | NEWPORT BEACH, CA | $28.8M | 4,298,487 |
| [Electron Capital Partners, LLC](https://search.stillhousedata.com/firm/166102) | NEW YORK, NY | $26.7M | 5,379,661 |
| STIFEL FINANCIAL CORP | ST. LOUIS, MO | $20.5M | 4,138,555 |

## Top fund holders (N-PORT)

_Showing 15 of 20 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $17.9M | 2.20% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $13.4M | 7.63% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $2.6M | 5.29% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $2.4M | 1.09% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $2.2M | 1.71% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $925K | 0.16% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $771K | 0.25% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $644K | 0.59% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $571K | 5.79% |
| [Driehaus Small/Mid Cap Growth Fund](https://search.stillhousedata.com/fund/S000068519) | Driehaus Mutual Funds | $567K | 62.92% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $370K | 1.02% |
| Adams Natural Resources Fund, Inc. | Adams Natural Resources Fund, Inc. | $368K | 4.79% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $214K | 5.11% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $140K | 1.85% |
| [The Gabelli Utilities Fund](https://search.stillhousedata.com/fund/S000001075) | Gabelli Utilities Fund | $50K | 0.28% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/29415C101.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.