Eos Energy Enterprises, Inc.
Eos Energy Enterprises, Inc. (EOSE) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · EOSE · as of Sep 30, 2025
Ownership Breakdown
326
Institutional Holders
▲ 72 vs Q2
$1.74B
Total Inst. Value
▲ $1.06B vs Q2
260.74M
Shares Outstanding
freeFloat 98.20%
152.41M
13F Shares Held
▲ 19.86M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
EOSE largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. miscellaneous electrical machinery, equipment & supplies | 18.41M | 7.74% | 7.74% | $209.70B | Nov 12, 2025 | ▲ 2.31M |
VANGUARD GROUP INC miscellaneous electrical machinery, equipment & supplies | 15.54M | 6.54% | 6.54% | $176.96B | Nov 7, 2025 | ▲ 2.22M |
RUBRIC CAPITAL MANAGEMENT LP miscellaneous electrical machinery, equipment & supplies | 10.30M | 4.33% | 4.33% | $117.32B | Nov 14, 2025 | NEW |
SUSQUEHANNA INTERNATIONAL GROUP, LLP miscellaneous electrical machinery, equipment & supplies | 8.28M | 3.48% | 3.48% | $94.32B | Nov 14, 2025 | ▲ 3.60M |
GRAHAM CAPITAL MANAGEMENT, L.P. miscellaneous electrical machinery, equipment & supplies | 7.74M | 3.26% | 3.26% | $88.20B | Nov 14, 2025 | ▲ 142.8K |
STATE STREET CORP miscellaneous electrical machinery, equipment & supplies | 7.25M | 3.05% | 3.05% | $82.53B | Nov 14, 2025 | ▲ 1.44M |
ELECTRON CAPITAL PARTNERS, LLC miscellaneous electrical machinery, equipment & supplies | 6.59M | 2.77% | 2.77% | $75.11B | Nov 14, 2025 | ▼ 384.7K |
DRIEHAUS CAPITAL MANAGEMENT LLC miscellaneous electrical machinery, equipment & supplies | 6.57M | 2.76% | 2.76% | $74.78B | Nov 14, 2025 | ▼ 476.4K |
GEODE CAPITAL MANAGEMENT, LLC miscellaneous electrical machinery, equipment & supplies | 6.21M | 2.61% | 2.61% | $70.71B | Nov 12, 2025 | ▲ 799.2K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP miscellaneous electrical machinery, equipment & supplies | 5.49M | 2.31% | 2.31% | $62.56B | Nov 14, 2025 | ▲ 656.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
33
Increased
+37.03M shares5
New Positions
first time holders11
Decreased
−9.77M shares0
Sold Out
fully exitedNet shares change (top 50)
+27.26M
+37.03M / −9.77M
Net new holders
+27
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
EOSE insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
10
Buy transactions
17
Sell transactions
0.59
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Walters Marian director | May 28, 2026 | Sale | 30,000 | $9.18 | $275.4K | 158.4K | Form 4 ↗ |
Walters Marian director | May 20, 2026 | Sale | 22,319 | $7.20 | $160.7K | 158.4K | Form 4 ↗ |
Bornstein Jeffrey S director | May 19, 2026 | D-Return | 12,326 | $6.88 | $84.8K | 134.2K | Form 4 ↗ |
Demby Claude director | May 19, 2026 | D-Return | 9,244 | $6.88 | $63.6K | 155.6K | Form 4 ↗ |
DIMITRIEF ALEXANDER director | May 19, 2026 | D-Return | 10,785 | $6.88 | $74.2K | 251.4K | Form 4 ↗ |
Nixon Gregory S. director | May 19, 2026 | Award | 23,111 | — | — | 23.1K | Form 4 ↗ |
Nixon Gregory S. director | May 19, 2026 | D-Return | 9,244 | $6.88 | $63.6K | 13.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Eos Energy Enterprises, Inc. (EOSE) is primarily owned by institutional investors, who hold approximately 58.5% of total shares outstanding. Company insiders own approximately 1.80%, while retail and public investors account for the remaining 39.75%.
The largest institutional shareholder of Eos Energy Enterprises, Inc. is BLACKROCK, INC., holding approximately 18.41 million shares — equal to 7.74% of outstanding shares — as of September 30, 2025.
A total of 326 institutional investors currently hold EOSE stock, with a combined institutional value of approximately $1.74 billion as of the most recent 13F filing period.
Frequently asked questions
EOSE ownershipEos Energy Enterprises, Inc. (EOSE) is primarily owned by institutional investors, who hold approximately 58.5% of shares. The largest shareholder is BLACKROCK, INC. with a 7.74% stake. Company insiders hold 1.80%. Data sourced from SEC Form 13F as of September 30, 2025.