AlphaYouEOSE: Mastrangelo Joe discloses securities transactions
By AlphaYouPublished Form 4
Mastrangelo Joe
Reporting filer
Mastrangelo Joe reported Grant or award in Eos Energy Enterprises, Inc.: 500000 units of Common Stock, dated 2026-09-14. The full Form 4 contains 3 transaction entries.
- Disclosed
- Sep 16, 2026
Reported details
3 entries| Security | Owner | Date | Code | Action | Quantity | Price | Following holdings | Reporting delay | Filed terms and references |
|---|---|---|---|---|---|---|---|---|---|
| Common Stock | Mastrangelo Joe | 2026-09-14 | A | Grant or award | 500000 | 0 | 2,558,704 | 2 days | Filed terms
|
| Common Stock | Mastrangelo Joe | 2026-09-16 | S | Sale | 250000 | 3.92 | 2,308,704 | 0 days | Filed terms
|
| Performance-Based Restricted Stock Units (derivative) | Mastrangelo Joe | 2026-09-14 | M | Exercise or conversion | 500000 | 0 | 0 | 2 days | Filed terms
|
Common Stock
- Owner
- Mastrangelo Joe
- Date
- 2026-09-14
- Code
- A
- Action
- Grant or award
- Quantity
- 500000
- Price
- 0
- Following holdings
- 2,558,704
- Reporting delay
- 2 days
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-09-14
- transaction Form Type: 4
- transaction Code: A
- equity Swap Involved: 0
- transaction Shares: 500000
- transaction Price Per Share: 0
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 2558704
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Mastrangelo Joe
- Date
- 2026-09-16
- Code
- S
- Action
- Sale
- Quantity
- 250000
- Price
- 3.92
- Following holdings
- 2,308,704
- Reporting delay
- 0 days
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-09-16
- transaction Form Type: 4
- transaction Code: S
- equity Swap Involved: 0
- id: F2
- transaction Shares: 250000
- transaction Price Per Share: 3.92
- id: F3
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 2308704
- direct Or Indirect Ownership: D
Performance-Based Restricted Stock Units (derivative)
- Owner
- Mastrangelo Joe
- Date
- 2026-09-14
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 500000
- Price
- 0
- Following holdings
- 0
- Reporting delay
- 2 days
- Filed terms and references
Filed terms
- security Title: Performance-Based Restricted Stock Units
- id: F1
- id: F1
- transaction Date: 2026-09-14
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: 0
- transaction Shares: 500000
- id: F4
- transaction Price Per Share: 0
- transaction Acquired Disposed Code: D
- id: F5
- id: F5
- underlying Security Title: Common Stock
- underlying Security Shares: 500000
- shares Owned Following Transaction: 0
- direct Or Indirect Ownership: D
Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.
Filing context
- Quantities and prices are shown in the units filed. No trade value is inferred from their product.
- Mastrangelo Joe: Chief Executive Officer, Director.
- The filing reports a Rule 10b5-1 trading plan.
- 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.
Original sources
Prepared automatically from public filing data. Report a correction.