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NASDAQ · INDUSTRIALS · Holders

Eos Energy Enterprises Inc (EOSE) Institutional Ownership & Insider Trading History

Recent insider purchases and sales for EOSE from Form 4 filings. Institutional holdings surface here when ownership sources publish.

Section freshness

Price Jun 26, 4:00 PM EDT · Statements Mar 30, 8:00 PM EDT

Source timingDetails

Data freshness

Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.

Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.

PriceLive
Last traded •
Source: Market data provider
Fundamentalsevery 1 hr
Provider checked •
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Analystevery 1 day
Provider checked •
Source: Market data provider
Newsevery 15 min
Latest item •
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Ownership read

EOSE insider sentiment: Mixed, sale-heavy.

27 sales and 4 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.

Review insider tradesView institutions

Insider flow

EOSE

Purchases3.25M
Sales12.57M

Directional bars ignore awards, gifts, conversions, and tax withholding rows.

Top holder

—

Institutional data pending

Insider stance

Mixed, sale-heavy

$132.99M sold / $20.00M bought

Latest filing

Jun 12, 2026

Most recent holder or insider filing date

Filings shown

116

0 holder / 116 insider

Holder rows
Pending
Market data source
Latest filing
Jun 12, 2026
Most recent holder or insider filing date
Increased / initiated
Pending
0 decreased
Insider rows
116
Market data source

Recent insider transactions

Eos Energy Enterprises Inc (EOSE) Form 4 filings

Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.

Mastrangelo Joe

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Jun 12, 2026

Mastrangelo Joe

Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale.
Shares
1.57M
% company
0.46%
Price
$6.06
Value
$9,517,109

Filed Jun 12, 2026

Mastrangelo Joe

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
1.69M
% company
0.50%
Price
$1.34
Value
$2,260,749

Filed Jun 12, 2026

Lagi Alessandro

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
277.77K
% company
0.08%
Price
No cash value
Value
No cash value

Filed Jun 8, 2026

Demby Claude

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
18.22K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

Walters Marian

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
21.25K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

McNeil Jeff

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
18.22K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

Urban David

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
18.22K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

Nigro Joseph

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
24.29K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

DIMITRIEF ALEXANDER

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
21.25K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

Bornstein Jeffrey S

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
24.29K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

Nixon Gregory S.

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
18.22K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Jun 5, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Jun 2, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
160.23K
% company
0.05%
Price
No cash value
Value
No cash value

Filed Jun 2, 2026

Nigro Joseph

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Jun 2, 2026

Nigro Joseph

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
38.95K
% company
0.01%
Price
No cash value
Value
No cash value

Filed Jun 2, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
35.02K
% company
0.01%
Price
No cash value
Value
No cash value

Filed May 28, 2026

Walters Marian

SaleOpen-market or direct sale reported on Form 4.
Shares
158.44K
% company
0.05%
Price
$9.18
Value
$1,454,525

Filed May 28, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
188.44K
% company
0.06%
Price
$1.18
Value
$222,365

Filed May 28, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
65.02K
% company
0.02%
Price
No cash value
Value
No cash value

Filed May 20, 2026

Walters Marian

SaleOpen-market or direct sale reported on Form 4.
Shares
158.44K
% company
0.05%
Price
$7.20
Value
$1,140,804

Filed May 20, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
180.76K
% company
0.05%
Price
$1.18
Value
$213,302

Filed May 20, 2026

Demby Claude

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

Demby Claude

Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale.
Shares
155.57K
% company
0.05%
Price
$6.88
Value
$1,070,356

Filed May 19, 2026

Demby Claude

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
164.82K
% company
0.05%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
87.34K
% company
0.03%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
158.44K
% company
0.05%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Walters Marian

SaleOpen-market or direct sale reported on Form 4.
Shares
135.33K
% company
0.04%
Price
$7.07
Value
$956,811

Filed May 19, 2026

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
143.01K
% company
0.04%
Price
$1.18
Value
$168,758

Filed May 19, 2026

McNeil Jeff

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

McNeil Jeff

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
122.29K
% company
0.04%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Urban David

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

Urban David

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
85.58K
% company
0.03%
Price
No cash value
Value
No cash value

Filed May 19, 2026

DIMITRIEF ALEXANDER

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

DIMITRIEF ALEXANDER

Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale.
Shares
251.40K
% company
0.07%
Price
$6.88
Value
$1,729,625

Filed May 19, 2026

DIMITRIEF ALEXANDER

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
262.18K
% company
0.08%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Bornstein Jeffrey S

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

Bornstein Jeffrey S

Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale.
Shares
134.25K
% company
0.04%
Price
$6.88
Value
$923,626

Filed May 19, 2026

Bornstein Jeffrey S

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
146.57K
% company
0.04%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Nixon Gregory S.

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed May 19, 2026

Nixon Gregory S.

Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale.
Shares
13.87K
% company
<0.01%
Price
$6.88
Value
$95,405

Filed May 19, 2026

Nixon Gregory S.

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
23.11K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed May 19, 2026

Urban David

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
62.47K
% company
0.02%
Price
$6.16
Value
$384,821

Filed Mar 9, 2026

Mastrangelo Joe

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
1.49M
% company
0.44%
Price
$6.58
Value
$9,785,289

Filed Mar 4, 2026

DIMITRIEF ALEXANDER

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
235.22K
% company
0.07%
Price
$6.04
Value
$1,420,735

Filed Mar 2, 2026

Mastrangelo Joe

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
1.46M
% company
0.43%
Price
$5.75
Value
$8,413,550

Filed Mar 2, 2026

Kroeker Nathan

SaleOpen-market or direct sale reported on Form 4.
Shares
662.51K
% company
0.20%
Price
$16.04
Value
$10,626,692

Filed Jan 26, 2026

Kroeker Nathan

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Jan 23, 2026

Kroeker Nathan

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
712.51K
% company
0.21%
Price
No cash value
Value
No cash value

Filed Jan 23, 2026

Silberman Michael W

SaleOpen-market or direct sale reported on Form 4.
Shares
283.28K
% company
0.08%
Price
$17.74
Value
$5,025,369

Filed Jan 23, 2026

Silberman Michael W

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
83.33K
% company
0.02%
Price
No cash value
Value
No cash value

Filed Jan 22, 2026

Silberman Michael W

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
324.95K
% company
0.10%
Price
No cash value
Value
No cash value

Filed Jan 22, 2026

Walters Marian

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
1.78K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Dec 22, 2025

Nigro Joseph

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
3.56K
% company
<0.01%
Price
No cash value
Value
No cash value

Filed Dec 22, 2025

Stidolph Russell Monoki

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Dec 8, 2025

Stidolph Russell Monoki

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Dec 8, 2025

Stidolph Russell Monoki

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Dec 8, 2025

Stidolph Russell Monoki

SaleOpen-market or direct sale reported on Form 4.
Shares
364.36K
% company
0.11%
Price
$14.89
Value
$5,425,246

Filed Dec 8, 2025

Stidolph Russell Monoki

Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale.
Shares
599.72K
% company
0.18%
Price
$14.89
Value
$8,929,861

Filed Dec 8, 2025

Stidolph Russell Monoki

Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale.
Shares
611.21K
% company
0.18%
Price
$14.89
Value
$9,100,962

Filed Dec 8, 2025

Stidolph Russell Monoki

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
630.01K
% company
0.19%
Price
$2.32
Value
$1,461,614

Filed Dec 8, 2025

Stidolph Russell Monoki

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
509.37K
% company
0.15%
Price
$1.18
Value
$601,060

Filed Dec 8, 2025

Stidolph Russell Monoki

SaleOpen-market or direct sale reported on Form 4.
Shares
364.36K
% company
0.11%
Price
$14.80
Value
$5,392,454

Filed Dec 8, 2025

Stidolph Russell Monoki

Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale.
Shares
365.12K
% company
0.11%
Price
$14.80
Value
$5,403,820

Filed Dec 8, 2025

Stidolph Russell Monoki

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
395.14K
% company
0.12%
Price
$14.43
Value
$5,701,913

Filed Dec 8, 2025

Stidolph Russell Monoki

SaleOpen-market or direct sale reported on Form 4.
Shares
2.12M
% company
0.63%
Price
$15.36
Value
$32,613,473

Filed Dec 8, 2025

Stidolph Russell Monoki

GiftGift transfer. Usually non-cash and not an open-market sale.
Shares
364.36K
% company
0.11%
Price
Non-cash
Value
Non-cash

Filed Dec 5, 2025

Stidolph Russell Monoki

GiftGift transfer. Usually non-cash and not an open-market sale.
Shares
379.36K
% company
0.11%
Price
Non-cash
Value
Non-cash

Filed Dec 5, 2025

Stidolph Russell Monoki

JProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Shares
439.36K
% company
0.13%
Price
Not reported
Value
Not reported

Filed Dec 5, 2025

Stidolph Russell Monoki

JProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Shares
2.05M
% company
0.60%
Price
Not reported
Value
Not reported

Filed Dec 5, 2025

Stidolph Russell Monoki

SaleOpen-market or direct sale reported on Form 4.
Shares
2.15M
% company
0.63%
Price
$14.99
Value
$32,277,547

Filed Dec 5, 2025

DIMITRIEF ALEXANDER

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Dec 5, 2025

DIMITRIEF ALEXANDER

Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale.
Shares
220.22K
% company
0.06%
Price
$15.03
Value
$3,309,922

Filed Dec 5, 2025

DIMITRIEF ALEXANDER

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
237.93K
% company
0.07%
Price
$14.43
Value
$3,433,258

Filed Dec 5, 2025

Bornstein Jeffrey S

SaleOpen-market or direct sale reported on Form 4.
Shares
115.76K
% company
0.03%
Price
$15.05
Value
$1,742,173

Filed Dec 5, 2025

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
95.02K
% company
0.03%
Price
No cash value
Value
No cash value

Filed Dec 4, 2025

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
—
% company
—
Price
No cash value
Value
No cash value

Filed Dec 4, 2025

Walters Marian

SaleOpen-market or direct sale reported on Form 4.
Shares
135.33K
% company
0.04%
Price
$15.81
Value
$2,139,631

Filed Dec 4, 2025

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
185.33K
% company
0.05%
Price
$1.18
Value
$218,694

Filed Dec 4, 2025

Walters Marian

Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale.
Shares
135.33K
% company
0.04%
Price
$15.75
Value
$2,131,511

Filed Dec 4, 2025

Walters Marian

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
152.27K
% company
0.04%
Price
$14.43
Value
$2,197,213

Filed Dec 4, 2025

McNeil Jeff

GiftGift transfer. Usually non-cash and not an open-market sale.
Shares
99.18K
% company
0.03%
Price
Non-cash
Value
Non-cash

Filed Dec 4, 2025

Bornstein Jeffrey S

SaleOpen-market or direct sale reported on Form 4.
Shares
—
% company
—
Price
$15.75
Value
Not reported

Filed Dec 4, 2025

Buczkowski Michelle

Award / grantAward, grant, or acquisition under an equity compensation plan.
Shares
234.74K
% company
0.07%
Price
No cash value
Value
No cash value

Filed Dec 2, 2025

Puri Sumeet

SaleOpen-market or direct sale reported on Form 4.
Shares
164.29K
% company
0.05%
Price
$7.25
Value
$1,191,103

Filed Sep 8, 2025

Puri Sumeet

SaleOpen-market or direct sale reported on Form 4.
Shares
184.29K
% company
0.05%
Price
$6.98
Value
$1,286,344

Filed Sep 8, 2025

Puri Sumeet

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
68.33K
% company
0.02%
Price
No cash value
Value
No cash value

Filed Sep 5, 2025

Puri Sumeet

Option exerciseDerivative exercise or conversion before any separate sale row.
Shares
204.79K
% company
0.06%
Price
No cash value
Value
No cash value

Filed Sep 5, 2025

Walters Marian

SaleOpen-market or direct sale reported on Form 4.
Shares
133.79K
% company
0.04%
Price
$7.90
Value
$1,056,973

Filed Sep 3, 2025

DIMITRIEF ALEXANDER

SaleOpen-market or direct sale reported on Form 4.
Shares
219.45K
% company
0.06%
Price
$6.00
Value
$1,316,712

Filed Aug 4, 2025

Mastrangelo Joe

SaleOpen-market or direct sale reported on Form 4.
Shares
1.40M
% company
0.41%
Price
$5.94
Value
$8,335,162

Filed Jul 29, 2025

Showing 92 of 116 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders

Frequently asked

Common questions.

Who are the largest EOSE shareholders?

Eos Energy Enterprises Inc (EOSE) institutional holders are ranked by reported share count when ownership data publishes filing rows.

What is institutional ownership of EOSE?

Eos Energy Enterprises Inc (EOSE) institutional ownership appears when filing-based market data returns holder rows. TECHi does not fill unavailable ownership fields with placeholder shareholders.

Where can I see Eos Energy Enterprises Inc insider transactions?

Eos Energy Enterprises Inc (EOSE) has 116 Form 4 insider transactions on file, most recently on Jun 12, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.

Are EOSE insiders buying or selling?

Recent EOSE insider activity reads Mixed, sale-heavy: 27 sales and 4 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.

Who is the most active EOSE insider?

Mastrangelo Joe is the most active EOSE insider by absolute share movement, with 13.09 million shares moving across the filing history. Review the action labels before treating that activity as buying or selling.