Stark Ronald B
SEC insider (Form 3/4/5 filer). CIK 0001329875. EVP and CAO at SOLV Energy, Inc. (MWH) and 1 other issuer. 8 reported Form 4/5 transactions since Sep 2024; latest on Aug 19, 2026. Located in SAN DIEGO, CA.
Companies Stark Ronald B has filed insider reports for
- SOLV Energy, Inc. (MWH): Officer, EVP and CAO
- Arcadium Lithium plc (ALTM): Officer, Chief Accounting Officer
Stark Ronald B
CIK: 0001329875
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (8 total)
- Aug 19, 2026MWH
SOLV Energy, Inc.
SaleDirectSOLV Energy Management Holdings LP Units
4.7K shares- - Jun 4, 2026MWH
SOLV Energy, Inc.
DispositionDirectSOLV Energy Management Holdings LP Units
1.1K shares- - Jun 1, 2026MWH
SOLV Energy, Inc.
DispositionDirectSOLV Energy Management Holdings LP Units
7.5K shares- - Mar 6, 2025ALTM
Arcadium Lithium plc
DispositionDirect26.6K shares- - Mar 6, 2025ALTM
Arcadium Lithium plc
DispositionDirect58.1K shares- - Feb 28, 2025ALTM
Arcadium Lithium plc
Tax PaymentDirect2.7K shares at avg. $5.83$16K - Feb 24, 2025ALTM
Arcadium Lithium plc
Tax PaymentDirect710 shares at avg. $5.82$4K - Feb 12, 2025ALTM
Arcadium Lithium plc
AwardDirect38.9K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 19, 2026 |  MWH SOLV Energy, Inc. | Sale SOLV Energy Management Holdings LP Units | 4,733 | - | - | Direct |
| Jun 4, 2026 | MWH SOLV Energy, Inc. | Disposition SOLV Energy Management Holdings LP Units | 1,122 | - | - | Direct |
| Jun 1, 2026 | MWH SOLV Energy, Inc. | Disposition SOLV Energy Management Holdings LP Units | 7,482 | - | - | Direct |
| Mar 6, 2025 |  ALTM Arcadium Lithium plc | Disposition | 26,593 | - | - | Direct |
| Mar 6, 2025 | ALTM Arcadium Lithium plc | Disposition | 58,052 | - | - | Direct |
| Feb 28, 2025 | ALTM Arcadium Lithium plc | Tax Payment | 2,745 | $5.83 | $16,003 | Direct |
| Feb 24, 2025 | ALTM Arcadium Lithium plc | Tax Payment | 710 | $5.82 | $4,132 | Direct |
| Feb 12, 2025 | ALTM Arcadium Lithium plc | Award | 38,861 | - | - | Direct |
1-8 of 8 transactions