TapewireFind a company

person · Reporting owner

Mastrangelo Joe

Disclosed activity across 1 company

Tapewire entity
19508
SEC CIK
0001833309

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Eos Energy Enterprises, Inc.EOSE · Entity 4901Director · Chief Executive OfficerSeptember 14, 2026September 16, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Eos Energy Enterprises, Inc.

Report date September 14, 2026 · Filed September 16, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect2,308,704 Ending reported balance After 2026-09-16 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-09-14 · Grant · Acquired 500,000 · Balance 2,558,704

F1: On July 5, 2024, the Reporting Person was granted performance-based restricted stock units ("2024 PRSU Awards"). The 2024 PRSU Awards are eligible to vest in up to two installments based on the total shareholder return of the Issuer over two- and three-year performance periods, each commencing on July 5, 2024. On September 14, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the first performance period, resulting in the vesting of these shares.

Row 2 · 2026-09-16 · Sale · Disposed 250,000 · Balance 2,308,704

F2: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2025 to cover estimated tax withholding obligations in connection with the vesting of performance-based restricted stock units.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.84 to $4.16, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Performance-Based Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect0 Reported balance After 2026-09-14 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-09-14 · Exercise / conversion · Disposed 500,000 · Balance 0

F1: On July 5, 2024, the Reporting Person was granted performance-based restricted stock units ("2024 PRSU Awards"). The 2024 PRSU Awards are eligible to vest in up to two installments based on the total shareholder return of the Issuer over two- and three-year performance periods, each commencing on July 5, 2024. On September 14, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the first performance period, resulting in the vesting of these shares.

F4: Represents the outstanding awarded and vested units pursuant to the 2024 PRSU Awards dated July 25, 2024 related to the achievement of certain total shareholder return objectives.

F5: Not applicable.

Filing footnotes · ownership attribution and instrument terms

F1: On July 5, 2024, the Reporting Person was granted performance-based restricted stock units ("2024 PRSU Awards"). The 2024 PRSU Awards are eligible to vest in up to two installments based on the total shareholder return of the Issuer over two- and three-year performance periods, each commencing on July 5, 2024. On September 14, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the first performance period, resulting in the vesting of these shares.

F2: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2025 to cover estimated tax withholding obligations in connection with the vesting of performance-based restricted stock units.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.84 to $4.16, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4: Represents the outstanding awarded and vested units pursuant to the 2024 PRSU Awards dated July 25, 2024 related to the achievement of certain total shareholder return objectives.

F5: Not applicable.

Transaction history

JSON API
Reset

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 16, 2026 Filed Sep 16, 2026 20:27 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 SaleCommon Stock 250,000 $3.92 $980,000.00
Disclosure

SEC source: 0001628280-26-062270 · wk-form4_1789590447.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,308,704

F2 · kind: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2025 to cover estimated tax withholding obligations in connection with the vesting of performance-based restricted stock units.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.84 to $4.16, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:27 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionPerformance-Based Restricted Stock Units · Derivative 500,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-062270 · wk-form4_1789590447.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 500,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: On July 5, 2024, the Reporting Person was granted performance-based restricted stock units ("2024 PRSU Awards"). The 2024 PRSU Awards are eligible to vest in up to two installments based on the total shareholder return of the Issuer over two- and three-year performance periods, each commencing on July 5, 2024. On September 14, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the first performance period, resulting in the vesting of these shares.

F1 · derivative.exercise_price: On July 5, 2024, the Reporting Person was granted performance-based restricted stock units ("2024 PRSU Awards"). The 2024 PRSU Awards are eligible to vest in up to two installments based on the total shareholder return of the Issuer over two- and three-year performance periods, each commencing on July 5, 2024. On September 14, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the first performance period, resulting in the vesting of these shares.

F4 · shares: Represents the outstanding awarded and vested units pursuant to the 2024 PRSU Awards dated July 25, 2024 related to the achievement of certain total shareholder return objectives.

F5 · derivative.exercise_date: Not applicable.

F5 · derivative.expiration_date: Not applicable.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:27 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantCommon Stock 500,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-062270 · wk-form4_1789590447.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,558,704

F1 · price: On July 5, 2024, the Reporting Person was granted performance-based restricted stock units ("2024 PRSU Awards"). The 2024 PRSU Awards are eligible to vest in up to two installments based on the total shareholder return of the Issuer over two- and three-year performance periods, each commencing on July 5, 2024. On September 14, 2026, the Compensation Committee of the Issuer's Board of Directors certified the achievement of the first performance period, resulting in the vesting of these shares.

Read SEC document
August 24, 2026 Filed Aug 26, 2026 20:03 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantRestricted Stock Units · Derivative 611,406 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-059074 · wk-form4_1787774618.xml · derivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 611,406

Underlying: Common Stock · 611,406 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
July 27, 2026 Filed Jul 28, 2026 21:02 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 SaleCommon Stock 159,154 $3.61 $574,545.94
Disclosure

SEC source: 0001628280-26-050226 · wk-form4_1785272514.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,947,586

F2 · shares: Represents shares withheld from vested restricted stock unit ("RSU") award to satisfy tax obligations, as permitted by the Company's Amended and Restated 2020 Incentive Plan.

Read SEC document
July 25, 2026 Filed Jul 28, 2026 21:02 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 333,334 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-050226 · wk-form4_1785272514.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 333,333

Underlying: Common Stock · 333,334 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
July 25, 2026 Filed Jul 28, 2026 21:02 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 333,334 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-050226 · wk-form4_1785272514.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,106,740

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
July 21, 2026 Filed Aug 6, 2026 12:14 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionWarrant (right to buy) · Derivative 48,758 $0.00 Strike: $5.48 $0.00
Disclosure

SEC source: 0001628280-26-053916 · wk-form4_1786018487.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,758

Underlying: Common Stock · 48,758 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents the conversion of a subscription right issued by the Issuer as part of a rights offering that closed on July 21, 2026 (the "Rights Offering"). Each subscription right was exercisable for units that consisted of (i) 1 share of common stock and (ii) 0.4388 of a warrant exercisable to acquire a share of common stock at an exercise price of $5.48 per share.

F1 · derivative.exercise_date: Represents the conversion of a subscription right issued by the Issuer as part of a rights offering that closed on July 21, 2026 (the "Rights Offering"). Each subscription right was exercisable for units that consisted of (i) 1 share of common stock and (ii) 0.4388 of a warrant exercisable to acquire a share of common stock at an exercise price of $5.48 per share.

F2 · derivative.exercise_date: Warrants became exercisable immediately after the Rights Offering closed and expire 10 years later, unless exercised or redeemed earlier. If a warrant is not exercised or redeemed before it expires, it will have no value.

F2 · derivative.expiration_date: Warrants became exercisable immediately after the Rights Offering closed and expire 10 years later, unless exercised or redeemed earlier. If a warrant is not exercised or redeemed before it expires, it will have no value.

Read SEC document
July 21, 2026 Filed Aug 6, 2026 12:14 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionSubscription Rights (right to buy) · Derivative 111,118 $0.00 Strike: $5.48 $0.00
Disclosure

SEC source: 0001628280-26-053916 · wk-form4_1786018487.xml · derivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 111,118 shares

Expires 2026-07-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents the conversion of a subscription right issued by the Issuer as part of a rights offering that closed on July 21, 2026 (the "Rights Offering"). Each subscription right was exercisable for units that consisted of (i) 1 share of common stock and (ii) 0.4388 of a warrant exercisable to acquire a share of common stock at an exercise price of $5.48 per share.

F1 · derivative.exercise_date: Represents the conversion of a subscription right issued by the Issuer as part of a rights offering that closed on July 21, 2026 (the "Rights Offering"). Each subscription right was exercisable for units that consisted of (i) 1 share of common stock and (ii) 0.4388 of a warrant exercisable to acquire a share of common stock at an exercise price of $5.48 per share.

Read SEC document
July 21, 2026 Filed Aug 6, 2026 12:14 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 111,118 $5.48 $608,926.64
Disclosure

SEC source: 0001628280-26-053916 · wk-form4_1786018487.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,058,704

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents the conversion of a subscription right issued by the Issuer as part of a rights offering that closed on July 21, 2026 (the "Rights Offering"). Each subscription right was exercisable for units that consisted of (i) 1 share of common stock and (ii) 0.4388 of a warrant exercisable to acquire a share of common stock at an exercise price of $5.48 per share.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 21:18 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Tax withholdingCommon Stock 121,245 $5.06 $613,499.70
Disclosure

SEC source: 0001628280-26-047541 · wk-form4_1783459097.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,773,406

F2 · shares: Represents shares withheld from vested restricted stock unit ("RSU") award to satisfy tax obligations, as permitted by the Company's Amended and Restated 2020 Incentive Plan.

Read SEC document
July 05, 2026 Filed Jul 7, 2026 21:18 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 254,304 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-047541 · wk-form4_1783459097.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 254,304 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F4 · derivative.exercise_date: Not applicable.

F4 · derivative.expiration_date: Not applicable.

Read SEC document
July 05, 2026 Filed Jul 7, 2026 21:18 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 254,304 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-047541 · wk-form4_1783459097.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,894,651

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
June 30, 2026 Filed Jun 30, 2026 21:05 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Tax withholdingCommon Stock 60,703 $6.09 $369,681.27
Disclosure

SEC source: 0001628280-26-046285 · wk-form4_1782853514.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,640,347

F2 · shares: Represents shares withheld from vested restricted stock unit ("RSU") award to satisfy tax obligations, as permitted by the Company's Amended and Restated 2020 Incentive Plan.

Read SEC document
June 26, 2026 Filed Jun 30, 2026 21:05 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 130,570 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-046285 · wk-form4_1782853514.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 261,140

Underlying: Common Stock · 130,570 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F4 · derivative.exercise_date: Not applicable.

F4 · derivative.expiration_date: Not applicable.

Read SEC document
June 26, 2026 Filed Jun 30, 2026 21:05 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 130,570 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-046285 · wk-form4_1782853514.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,701,050

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 13:15 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionStock Option (Right to Buy) · Derivative 200,000 $0.00 Strike: $1.34 $0.00
Disclosure

SEC source: 0001628280-26-043041 · wk-form4_1781529328.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 200,000 shares

Expires 2032-06-16

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: On June 16, 2022 the reporting person was granted stock options to purchase 200,000 shares of common stock which vested on September 27, 2022.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 13:15 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Tax withholdingCommon Stock 116,646 $6.06 $706,874.76
Disclosure

SEC source: 0001628280-26-043041 · wk-form4_1781529328.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,570,480

F1 · shares: The transactions reported in this Form 4 reflect the exercise of Non-Qualified Stock Options by the Reporting Person and the subsequent retention of the underlying shares of Common Stock. The option exercise and corresponding acquisition of shares reported in Table I and Table II were exempted from Section 16(b) liability pursuant to Rule 16b-3 promulgated under the Securities Exchange Act of 1934. The Reporting Person has elected to retain the net shares acquired upon exercise to maintain and support their long-term equity position in the Issuer, including in connection with any potential future equity or rights offerings that may be conducted by the Issuer.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 13:15 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 200,000 $1.34 $268,000.00
Disclosure

SEC source: 0001628280-26-043041 · wk-form4_1781529328.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,687,126

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 13:48 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 23,900 $6.58 $157,262.00
Disclosure

SEC source: 0001628280-26-015015 · wk-form4_1772718498.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,487,126

Read SEC document
March 02, 2026 Filed Mar 3, 2026 14:00 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 60,000 $5.75 $345,000.00
Disclosure

SEC source: 0001628280-26-013586 · wk-form4_1772546447.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,463,226

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.74 to $5.75, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Read SEC document
July 29, 2025 Filed Jul 30, 2025 01:46 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 SaleCommon Stock 166,667 $5.94 $990,001.98
Disclosure

SEC source: 0001805077-25-000149 · wk-form4_1753839984.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,403,226

F2 · kind: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2025 to cover estimated tax withholding obligations in connection with the vesting of restricted stock units.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.80 to $6.29, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Read SEC document
July 25, 2025 Filed Jul 30, 2025 01:46 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 333,333 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000149 · wk-form4_1753839984.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 666,667

Underlying: Common Stock · 333,333 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F5 · derivative.exercise_date: Not applicable.

F5 · derivative.expiration_date: Not applicable.

Read SEC document
July 25, 2025 Filed Jul 30, 2025 01:46 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 333,333 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000149 · wk-form4_1753839984.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,569,893

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
July 08, 2025 Filed Jul 8, 2025 21:03 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 SaleCommon Stock 127,152 $4.92 $625,587.84
Disclosure

SEC source: 0001805077-25-000134 · wk-form4_1752008602.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,236,560

F2 · kind: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2025 to cover estimated tax withholding obligations in connection with the vesting of restricted stock units.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.86 to $5.17, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Read SEC document
July 05, 2025 Filed Jul 8, 2025 21:03 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 254,303 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000134 · wk-form4_1752008602.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 254,304

Underlying: Common Stock · 254,303 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F5 · derivative.exercise_date: Not applicable.

F5 · derivative.expiration_date: Not applicable.

Read SEC document
July 05, 2025 Filed Jul 8, 2025 21:03 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 254,303 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000134 · wk-form4_1752008602.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,363,712

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
June 26, 2025 Filed Jun 27, 2025 20:05 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantRestricted Stock Units · Derivative 391,710 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000123 · wk-form4_1751054707.xml · derivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 391,710

Underlying: Common Stock · 391,710 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 16, 2025 Filed May 16, 2025 22:16 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 SaleCommon Stock 270,384 $6.86 $1,854,834.24
Disclosure

SEC source: 0001805077-25-000088 · wk-form4_1747433754.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,109,409

F1 · shares: The sales reported on this Form 4 represent the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of performance-based restricted stock units. The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. Such sales were automatic and not at the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.73 to $7.10, inclusive.

Read SEC document
May 08, 2025 Filed May 12, 2025 21:45 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionPerformance-Based Restricted Stock Units · Derivative 470,000 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000059 · wk-form4_1747086295.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 470,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: On July 25, 2024, the reporting person was granted PRSUs to receive 500,000 shares of common stock, which vest based on the achievement of certain performance milestones in the Company's June 21, 2024 credit and guaranty agreement. On May 8th, 2025, the Company's Compensation Committee certified the achievement of 15 of the 16 milestones and 470,000 PRSUs vested. The remaining 30,000 PRSUs associated with the final milestone have been forfeited.

F1 · derivative.exercise_price: Each performance-based restricted stock unit ("PRSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 08, 2025 Filed May 12, 2025 21:45 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantPerformance-Based Restricted Stock Units · Derivative 470,000 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000059 · wk-form4_1747086295.xml · derivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 470,000

Underlying: Common Stock · 470,000 shares

Expires not disclosed

F2 · security: On July 25, 2024, the reporting person was granted PRSUs to receive 500,000 shares of common stock, which vest based on the achievement of certain performance milestones in the Company's June 21, 2024 credit and guaranty agreement. On May 8th, 2025, the Company's Compensation Committee certified the achievement of 15 of the 16 milestones and 470,000 PRSUs vested. The remaining 30,000 PRSUs associated with the final milestone have been forfeited.

F1 · derivative.exercise_price: Each performance-based restricted stock unit ("PRSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 08, 2025 Filed May 12, 2025 21:45 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 470,000 $0.00 $0.00
Disclosure

SEC source: 0001805077-25-000059 · wk-form4_1747086295.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,379,793

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each performance-based restricted stock unit ("PRSU") represents a contingent right to receive one share of common stock.

Read SEC document
August 09, 2024 Filed Aug 12, 2024 14:54 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 52,800 $1.43 $75,504.00
Disclosure

SEC source: 0001805077-24-000096 · wk-form4_1723474491.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 909,793

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.42 to $1.43, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Read SEC document
July 25, 2024 Filed Jul 30, 2024 00:13 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantRestricted Stock Units · Derivative 1,000,000 $0.00 $0.00
Disclosure

SEC source: 0001805077-24-000072 · wk-form4_1722298397.xml · derivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Common Stock · 1,000,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
July 05, 2024 Filed Jul 9, 2024 21:33 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 254,304 $0.00 $0.00
Disclosure

SEC source: 0001805077-24-000067 · wk-form4_1720560810.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 508,607

Underlying: Common Stock · 254,304 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, as amended from time to time, which will vest in three equal installments on each of the first three anniversaries of the grant date, or if earlier, upon a Change in Control (as defined in the 2020 Incentive Plan), subject to continued service through each vesting date.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock.

F4 · derivative.exercise_date: Not applicable.

F4 · derivative.expiration_date: Not applicable.

Read SEC document
July 05, 2024 Filed Jul 9, 2024 21:33 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Tax withholdingCommon Stock 115,683 $1.92 $222,111.36
Disclosure

SEC source: 0001805077-24-000067 · wk-form4_1720560810.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 856,993

F1 · shares: Represents shares withheld from vested restricted stock unit ("RSU") award to satisfy tax obligations, as permitted by the Company's Amended and Restated 2020 Incentive Plan.

Read SEC document
July 05, 2024 Filed Jul 9, 2024 21:33 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 254,304 $0.00 $0.00
Disclosure

SEC source: 0001805077-24-000067 · wk-form4_1720560810.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 972,676

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 03, 2024 Filed Jan 6, 2024 00:47 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 250,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-24-000739 · wk-form4_1704502062.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 250,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, as amended from time to time, which vested in three equal installments on each of January 3, 2022, January 3, 2023 and January 3, 2024.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock.

F4 · derivative.exercise_date: Not applicable.

F4 · derivative.expiration_date: Not applicable.

Read SEC document
January 03, 2024 Filed Jan 6, 2024 00:47 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Tax withholdingCommon Stock 122,427 $0.99 $121,753.65
Disclosure

SEC source: 0001628280-24-000739 · wk-form4_1704502062.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 718,372

F1 · shares: Represents shares withheld from vested restricted stock unit ("RSU") award to satisfy tax obligations, as permitted by the Company's Amended and Restated 2020 Incentive Plan.

Read SEC document
January 03, 2024 Filed Jan 6, 2024 00:47 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 250,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-24-000739 · wk-form4_1704502062.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 840,799

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 21, 2023 Filed Sep 21, 2023 16:45 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 36,500 $2.05 $74,810.40
Disclosure

SEC source: 0001628280-23-032748 · wk-form4_1695314732.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 590,799

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.04 to $2.05, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
July 28, 2023 Filed Jul 28, 2023 21:45 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 31,199 $2.23 $69,573.77
Disclosure

SEC source: 0001628280-23-026146 · wk-form4_1690580702.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 554,299

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.15 to $2.24987, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
July 05, 2023 Filed Jul 6, 2023 23:05 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantRestricted Stock Units · Derivative 762,911 $0.00 $0.00
Disclosure

SEC source: 0001628280-23-024497 · wk-form4_1688684723.xml · derivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 762,911

Underlying: Common Stock · 762,911 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, as amended from time to time, which will vest in three equal installments on each of the first three anniversaries of the grant date, or if earlier, upon a Change in Control (as defined in the 2020 Incentive Plan), subject to continued service through each vesting date.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
January 03, 2023 Filed Jan 5, 2023 23:31 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionRestricted Stock Units · Derivative 250,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-23-000530 · wf-form4_167296143646637.xml · derivative · entry 3

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,000

Underlying: Common Stock · 250,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock

F2 · derivative.exercise_date: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, as amended from time to time, which will vest in three equal installments on each of January 3, 2022, January 2, 2023 and January 1, 2024, subject to continued service through each vesting date.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
January 03, 2023 Filed Jan 5, 2023 23:31 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Tax withholdingCommon Stock 130,627 $1.36 $177,652.72
Disclosure

SEC source: 0001628280-23-000530 · wf-form4_167296143646637.xml · nonDerivative · entry 2

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 523,100

Read SEC document
January 03, 2023 Filed Jan 5, 2023 23:31 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 Exercise / conversionCommon Stock 250,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-23-000530 · wf-form4_167296143646637.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 653,727

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock

Read SEC document
November 10, 2022 Filed Nov 14, 2022 14:03 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 65,000 $1.15 $74,743.50
Disclosure

SEC source: 0000950103-22-019550 · dp184234_4-mastrangelo.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 403,727

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.145 to $1.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
July 29, 2022 Filed Aug 2, 2022 20:11 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 GrantStock Option (Right to Buy) · Derivative 200,000 $0.00 Strike: $1.34 $0.00
Disclosure

SEC source: 0001628280-22-020226 · wf-form4_165947107952301.xml · derivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2032-06-16

F1 · date: On June 16, 2022, the reporting person was granted stock options to purchase 400,000 shares of common stock. The stock option vest in two equal installments based on the achievement of certain performance conditions during specified time periods (each, a "Milestone Event"), with the full vesting of the applicable tranche of stock options to occur 60 days after the achievement of the applicable Milestone Event. The first of the Milestone Events was achieved on July 29, 2022 and the stock options with respect to 200,000 shares of common stock will become fully vested and exercisable on the 60th day following the date of the achievement of the Milestone Event, subject to the reporting person's continued employment with the issuer through such date.

F1 · derivative.exercise_date: On June 16, 2022, the reporting person was granted stock options to purchase 400,000 shares of common stock. The stock option vest in two equal installments based on the achievement of certain performance conditions during specified time periods (each, a "Milestone Event"), with the full vesting of the applicable tranche of stock options to occur 60 days after the achievement of the applicable Milestone Event. The first of the Milestone Events was achieved on July 29, 2022 and the stock options with respect to 200,000 shares of common stock will become fully vested and exercisable on the 60th day following the date of the achievement of the Milestone Event, subject to the reporting person's continued employment with the issuer through such date.

F1 · balance_after: On June 16, 2022, the reporting person was granted stock options to purchase 400,000 shares of common stock. The stock option vest in two equal installments based on the achievement of certain performance conditions during specified time periods (each, a "Milestone Event"), with the full vesting of the applicable tranche of stock options to occur 60 days after the achievement of the applicable Milestone Event. The first of the Milestone Events was achieved on July 29, 2022 and the stock options with respect to 200,000 shares of common stock will become fully vested and exercisable on the 60th day following the date of the achievement of the Milestone Event, subject to the reporting person's continued employment with the issuer through such date.

Read SEC document
May 12, 2022 Filed May 13, 2022 00:08 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 70,000 $1.40 $98,000.00
Disclosure

SEC source: 0001628280-22-014193 · wf-form4_165240051581019.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,727

F1 · shares: This transaction was executed in multiple trades at prices ranging from $1.36 to $1.46 per share. The price reported represents the weighted average purchase price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares purchased at each separate price.

Read SEC document
March 01, 2022 Filed Mar 2, 2022 22:11 UTC Eos Energy Enterprises, Inc. EOSE · Entity 4901 PurchaseCommon Stock 35,000 $2.88 $100,800.00
Disclosure

SEC source: 0001628280-22-004716 · wf-form4_164625902041555.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 268,727

F1 · shares: This transaction was executed in multiple trades at prices ranging from $2.83 to $2.9 per share. The price reported represents the weighted average purchase price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares purchased at each separate price.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.