Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Eos Energy Enterprises, Inc.EOSE · Entity 4901 | Director · Chief Executive Officer | September 14, 2026 | September 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 / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 2,308,704 |
Ending reported balance
After 2026-09-16 transaction · row 2
2 source rows · reconciled sequenceRow 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 security | Direct | 0 |
Reported balance
After 2026-09-14 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 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 APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| January 03, 2022 Filed Jan 5, 2022 21:44 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | Exercise / conversionRestricted Stock Units · Derivative | 250,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-22-000327 · wf-form4_164141902448073.xml · derivative · entry 3 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 500,000 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, 2022 Filed Jan 5, 2022 21:44 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | Tax withholdingCommon Stock | 95,819 | $7.60 | $728,224.40 |
DisclosureSEC source: 0001628280-22-000327 · wf-form4_164141902448073.xml · nonDerivative · entry 2 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 233,727 Read SEC document |
| January 03, 2022 Filed Jan 5, 2022 21:44 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | Exercise / conversionCommon Stock | 250,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-22-000327 · wf-form4_164141902448073.xml · nonDerivative · entry 1 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 329,546 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 |
| February 26, 2021 Filed Mar 2, 2021 22:03 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | GrantRestricted Stock Units · Derivative | 750,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-21-003751 · wf-form4_161472257628225.xml · derivative · entry 1 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 750,000 Underlying: Common Stock · 750,000 shares Expires not disclosed 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: (2)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. F2 · derivative.expiration_date: (2)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. Read SEC document |
| February 11, 2021 Filed Feb 17, 2021 00:03 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | GrantCommon Stock | 5,015 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001213900-21-009785 · ownership.xml · nonDerivative · entry 1 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 79,546 F1 · price: Common Stock grant in connection with the issuer's achievement of certain performance targets. Read SEC document |
| November 18, 2020 Filed Nov 23, 2020 22:00 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | Exercise / conversionRestricted Stock Units · Derivative | 74,531 | $0.00 | $0.00 |
DisclosureSEC source: 0001213900-20-038810 · ownership.xml · derivative · entry 2 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 74,531 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 restricted stock units which vest in full when the per share price of the Company's common stock quals or exceeds $12.00 at any time. F3 · derivative.expiration_date: Not applicable. Read SEC document |
| November 18, 2020 Filed Nov 23, 2020 22:00 UTC | Eos Energy Enterprises, Inc. EOSE · Entity 4901 | Exercise / conversionCommon Stock | 74,531 | $0.00 | $0.00 |
DisclosureSEC source: 0001213900-20-038810 · ownership.xml · nonDerivative · entry 1 Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 74,531 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.