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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 2026-11-07T14:03:26.246Z

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2026-10-292026-10-29Buczkowski MichelleS50,000Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-29 and its public availability date is 2026-10-29. Subtracting those calendar dates gives 0 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001628280-26-068288 ↗SEC 0001628280-26-062273 ↗SEC 0001628280-26-062270 ↗

Recent Form 4 activity

Inspect all 11 displayed rows: Recent Form 4 activity

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2026-10-292026-10-29Buczkowski MichelleS50,000Not reported
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

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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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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.