Mastrangelo Joe
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed Jun 12, 2026
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
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
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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 •
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Fundamentalsevery 1 hr
Provider checked •
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Analystevery 1 day
Provider checked •
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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.
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
- Shares
- 1.57M
- % company
- 0.46%
- Price
- $6.06
- Value
- $9,517,109
Filed Jun 12, 2026
Mastrangelo Joe
- Shares
- 1.69M
- % company
- 0.50%
- Price
- $1.34
- Value
- $2,260,749
Filed Jun 12, 2026
Lagi Alessandro
- Shares
- 277.77K
- % company
- 0.08%
- Price
- No cash value
- Value
- No cash value
Filed Jun 8, 2026
Demby Claude
- Shares
- 18.22K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
Walters Marian
- Shares
- 21.25K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
McNeil Jeff
- Shares
- 18.22K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
Urban David
- Shares
- 18.22K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
Nigro Joseph
- Shares
- 24.29K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
DIMITRIEF ALEXANDER
- Shares
- 21.25K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
Bornstein Jeffrey S
- Shares
- 24.29K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
Nixon Gregory S.
- Shares
- 18.22K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 5, 2026
Walters Marian
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed Jun 2, 2026
Walters Marian
- Shares
- 160.23K
- % company
- 0.05%
- Price
- No cash value
- Value
- No cash value
Filed Jun 2, 2026
Nigro Joseph
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed Jun 2, 2026
Nigro Joseph
- Shares
- 38.95K
- % company
- 0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 2, 2026
Walters Marian
- Shares
- 35.02K
- % company
- 0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 28, 2026
Walters Marian
- Shares
- 158.44K
- % company
- 0.05%
- Price
- $9.18
- Value
- $1,454,525
Filed May 28, 2026
Walters Marian
- Shares
- 188.44K
- % company
- 0.06%
- Price
- $1.18
- Value
- $222,365
Filed May 28, 2026
Walters Marian
- Shares
- 65.02K
- % company
- 0.02%
- Price
- No cash value
- Value
- No cash value
Filed May 20, 2026
Walters Marian
- Shares
- 158.44K
- % company
- 0.05%
- Price
- $7.20
- Value
- $1,140,804
Filed May 20, 2026
Walters Marian
- Shares
- 180.76K
- % company
- 0.05%
- Price
- $1.18
- Value
- $213,302
Filed May 20, 2026
Demby Claude
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
Demby Claude
- Shares
- 155.57K
- % company
- 0.05%
- Price
- $6.88
- Value
- $1,070,356
Filed May 19, 2026
Demby Claude
- Shares
- 164.82K
- % company
- 0.05%
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
Walters Marian
- Shares
- 87.34K
- % company
- 0.03%
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
Walters Marian
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
Walters Marian
- Shares
- 158.44K
- % company
- 0.05%
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
Walters Marian
- Shares
- 135.33K
- % company
- 0.04%
- Price
- $7.07
- Value
- $956,811
Filed May 19, 2026
Walters Marian
- Shares
- 143.01K
- % company
- 0.04%
- Price
- $1.18
- Value
- $168,758
Filed May 19, 2026
McNeil Jeff
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
McNeil Jeff
- Shares
- 122.29K
- % company
- 0.04%
- Price
- No cash value
- Value
- No cash value
Filed May 19, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | Mastrangelo Joe | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | Jun 12, 2026 |
| 2 | Mastrangelo Joe | 0.46% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 1.57M | $6.06 | $9,517,109 | Jun 12, 2026 |
| 3 | Mastrangelo Joe | 0.50% | Option exerciseDerivative exercise or conversion before any separate sale row. | 1.69M | $1.34 | $2,260,749 | Jun 12, 2026 |
| 4 | Lagi Alessandro | 0.08% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 277.77K | No cash value | No cash value | Jun 8, 2026 |
| 5 | Demby Claude | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 18.22K | No cash value | No cash value | Jun 5, 2026 |
| 6 | Walters Marian | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 21.25K | No cash value | No cash value | Jun 5, 2026 |
| 7 | McNeil Jeff | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 18.22K | No cash value | No cash value | Jun 5, 2026 |
| 8 | Urban David | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 18.22K | No cash value | No cash value | Jun 5, 2026 |
| 9 | Nigro Joseph | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 24.29K | No cash value | No cash value | Jun 5, 2026 |
| 10 | DIMITRIEF ALEXANDER | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 21.25K | No cash value | No cash value | Jun 5, 2026 |
| 11 | Bornstein Jeffrey S | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 24.29K | No cash value | No cash value | Jun 5, 2026 |
| 12 | Nixon Gregory S. | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 18.22K | No cash value | No cash value | Jun 5, 2026 |
| 13 | Walters Marian | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | Jun 2, 2026 |
| 14 | Walters Marian | 0.05% | Option exerciseDerivative exercise or conversion before any separate sale row. | 160.23K | No cash value | No cash value | Jun 2, 2026 |
| 15 | Nigro Joseph | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | Jun 2, 2026 |
| 16 | Nigro Joseph | 0.01% | Option exerciseDerivative exercise or conversion before any separate sale row. | 38.95K | No cash value | No cash value | Jun 2, 2026 |
| 17 | Walters Marian | 0.01% | Option exerciseDerivative exercise or conversion before any separate sale row. | 35.02K | No cash value | No cash value | May 28, 2026 |
| 18 | Walters Marian | 0.05% | SaleOpen-market or direct sale reported on Form 4. | 158.44K | $9.18 | $1,454,525 | May 28, 2026 |
| 19 | Walters Marian | 0.06% | Option exerciseDerivative exercise or conversion before any separate sale row. | 188.44K | $1.18 | $222,365 | May 28, 2026 |
| 20 | Walters Marian | 0.02% | Option exerciseDerivative exercise or conversion before any separate sale row. | 65.02K | No cash value | No cash value | May 20, 2026 |
| 21 | Walters Marian | 0.05% | SaleOpen-market or direct sale reported on Form 4. | 158.44K | $7.20 | $1,140,804 | May 20, 2026 |
| 22 | Walters Marian | 0.05% | Option exerciseDerivative exercise or conversion before any separate sale row. | 180.76K | $1.18 | $213,302 | May 20, 2026 |
| 23 | Demby Claude | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | May 19, 2026 |
| 24 | Demby Claude | 0.05% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 155.57K | $6.88 | $1,070,356 | May 19, 2026 |
| 25 | Demby Claude | 0.05% | Option exerciseDerivative exercise or conversion before any separate sale row. | 164.82K | No cash value | No cash value | May 19, 2026 |
| 26 | Walters Marian | 0.03% | Option exerciseDerivative exercise or conversion before any separate sale row. | 87.34K | No cash value | No cash value | May 19, 2026 |
| 27 | Walters Marian | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | May 19, 2026 |
| 28 | Walters Marian | 0.05% | Option exerciseDerivative exercise or conversion before any separate sale row. | 158.44K | No cash value | No cash value | May 19, 2026 |
| 29 | Walters Marian | 0.04% | SaleOpen-market or direct sale reported on Form 4. | 135.33K | $7.07 | $956,811 | May 19, 2026 |
| 30 | Walters Marian | 0.04% | Option exerciseDerivative exercise or conversion before any separate sale row. | 143.01K | $1.18 | $168,758 | May 19, 2026 |
| 31 | McNeil Jeff | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | May 19, 2026 |
| 32 | McNeil Jeff | 0.04% | Option exerciseDerivative exercise or conversion before any separate sale row. | 122.29K | No cash value | No cash value | May 19, 2026 |
Showing 32 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.