Public ownership evidence

Eos Energy Enterprises, Inc. Class A Common Stock (EOSE) Ownership Disclosures

Read EOSE insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Eos Energy Enterprises, Inc. Class A Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-16
Trade date
2026-09-16
Reporting owners
Puri Sumeet
Code
S
Shares
43,750
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001628280-26-062273
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read EOSE fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read EOSE fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-09-162026-09-16Puri SumeetS43,750Not reported
2026-09-162026-09-16Mastrangelo JoeS250,000Not reported
2026-09-162026-09-14Mastrangelo JoeA500,000Not reported
2026-09-152026-09-14Song HaiyanP5,000Not reported
2026-09-152026-09-11Song HaiyanP10,000Not reported
2026-09-092026-09-09Puri SumeetS34,167Not reported
2026-08-272026-08-24Puri SumeetA65,044Not reported
2026-08-272026-08-24Buczkowski MichelleA195,130Not reported
2026-08-272026-08-24Lagi AlessandroA195,130Not reported
2026-08-272026-08-24Mastrangelo JoeA611,406Not reported
2026-08-072026-08-04CCM Frontier JV Holdco, LLC, CCM Frontier Power USA Holdings GP, LLC, CCM Frontier Power USA Holdings, LP, Cerberus GP Manager LLCA20,017,772Not reported
2026-07-292026-07-28Puri SumeetS29,167Not reported
2026-07-292026-07-28Kroeker NathanS110,417Not reported
2026-07-292026-07-27Mastrangelo JoeS159,154Not reported
2026-07-282026-07-23Nigro JosephA5,942Not reported
2026-07-282026-07-23Walters MarianA5,942Not reported
2026-07-282026-07-23DIMITRIEF ALEXANDERA5,942Not reported
2026-07-162026-07-13Song HaiyanA29,980Not reported
2026-07-162026-07-13Martin Marie BatzA216,731Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-29211$1,241None
Cornerstone Financial Management LLC2026-03-312026-08-29211$1,047None
Cornerstone Financial Management LLC2025-12-312026-08-29211$2,418None
Advisors Asset Management, Inc.2021-12-312026-08-282,839$21,349None
Advisors Asset Management, Inc.2022-06-302026-08-282,656$3,000None
Advisors Asset Management, Inc.2021-09-302026-08-282,563$36,000None
Corient Private Wealth LP2026-06-302026-08-2893,005$546,870None
Advisors Asset Management, Inc.2022-09-302026-08-271,875$3,000None
Advisors Asset Management, Inc.2022-03-312026-08-272,764$11,554None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2621,800$108,128None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25392,054$2,305,278None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,305,278$392,054,000None
Nokomis Capital, L.L.C.2026-06-302026-08-2249,400$290,472Put
CANTOR FITZGERALD, L. P.2026-06-302026-08-2079,519$467,572None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2013,639$80,197None
Beacon Pointe Advisors, LLC2026-06-302026-08-19200,793$1,180,663None
Copia Wealth Management2026-06-302026-08-195,006$29,435None
Ensign Peak Advisors, Inc2026-03-312026-08-1924,150$119,784None
Ensign Peak Advisors, Inc2025-12-312026-08-1924,150$276,759None
Ensign Peak Advisors, Inc2025-09-302026-08-1953,450$608,796None
Fulcrum Asset Management LLP2026-06-302026-08-1948,924$297,947None
Strive Financial Group ,LLC2026-06-302026-08-18575$3,381None
Almitas Capital LLC2026-06-302026-08-1850,000$294,000None
Corient Private Wealth LP2026-06-302026-08-1893,005$546,870None
Empowered Funds, LLC2026-06-302026-08-1811,221$65,979None
Empowered Funds, LLC2026-06-302026-08-182,232$13,124None
Equitable Holdings, Inc.2026-06-302026-08-1865,644$385,987None
Jefferies Financial Group Inc.2026-06-302026-08-18150,000$882,000Put
Jefferies Financial Group Inc.2026-06-302026-08-1842,673$250,917None
MCGUIRE CAPITAL ADVISORS INC2026-06-302026-08-15500$2,940None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-1549,442$290,719None
Alpine Global Management, LLC2026-06-302026-08-15500,000$2,940,000None
STANCE CAPITAL LLC2026-06-302026-08-157,763$45,646None
TORONTO DOMINION BANK2026-06-302026-08-15115,000$676,200Call
SummitTX Capital, L.P.2026-06-302026-08-1522,011$129,425None
Graham Capital Management, L.P.2026-06-302026-08-153,566,446$20,970,702None
Federation des caisses Desjardins du Quebec2026-06-302026-08-152,130$12,524None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15500$2,940None
Advisors Asset Management, Inc.2026-06-302026-08-155,625$33,075None
Marex Group Ltd2026-06-302026-08-15717,015$4,216,048None
Marex Group Ltd2026-06-302026-08-1511,624$68,349None
Quarry LP2026-06-302026-08-151,166,288$6,857,773None
Militia Capital Partners, LP2025-12-312026-08-15138,200$1,583,772Put
Militia Capital Partners, LP2025-09-302026-08-15768,200$8,749,798Put
Militia Capital Partners, LP2025-06-302026-08-15144,100$737,792Put
Militia Capital Partners, LP2025-03-312026-08-1544,000$166,320Put
Militia Capital Partners, LP2024-12-312026-08-15110,000$534,600Put
XTX Topco Ltd2026-06-302026-08-15344,261$2,024,255None
Sagefield Capital LP2026-06-302026-08-1512,507$73,541None
Sagefield Capital LP2026-06-302026-08-15240,110$1,411,847None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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