Ronald B Stark
CIK 1329875 · SVP, Controller and PAO · last filed 2026-06-05
Ronald B Stark is a SVP, Controller and PAO who has filed 30 SEC Form 4 insider transactions across 4 companies since 2013. The most recent filing, for MWH, was dated Jun 5, 2026. Current disclosed insider exposure totals $3.0M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.98M
4
30
$0
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MWH | SVP, Controller and PAO | — | $31.75 | — | $0 | 2 | 2026-06-05 |
| Arcadium Lithium plc (ALTM) Delisted | Chief Accounting Officer | 0 | $5.84 | $0 | $0 | 9 | 2025-03-06 |
| Livent Corp. (LTHM) Delisted | Chief Accounting Officer | 12,581 | $16.51 | $207.7K | $0 | 6 | 2023-12-27 |
| NRG | VP, Chief Accounting Officer | 23,765 | $125.47 | $2.98M | $0 | 12 | 2015-02-04 |
Recent Filings
30 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-05 | MWH | Disp (D) | — | $0 | EDGAR |
| 2026-06-03 | MWH | Disp (D) | — | $0 | EDGAR |
| 2025-03-06 | Arcadium Lithium plc (ALTM) Delisted | Disp (D) | −84,645 | $0 | EDGAR |
| 2025-03-03 | Arcadium Lithium plc (ALTM) Delisted | Tax (F) | −2,745 | -$16.0K | EDGAR |
| 2025-02-26 | Arcadium Lithium plc (ALTM) Delisted | Tax (F) | −710 | -$4.1K | EDGAR |
| 2025-02-14 | Arcadium Lithium plc (ALTM) Delisted | Grant (A) | +38,861 | $0 | EDGAR |
| 2024-03-08 | Arcadium Lithium plc (ALTM) Delisted | Grant (A) | +22,728 | $0 | EDGAR |
| 2024-02-26 | Arcadium Lithium plc (ALTM) Delisted | Tax (F) | −137 | -$643 | EDGAR |
| 2024-02-01 | Arcadium Lithium plc (ALTM) Delisted | Tax (F) | −4,674 | -$31.8K | EDGAR |
| 2024-01-12 | Arcadium Lithium plc (ALTM) Delisted | Grant (A) | — | $0 | EDGAR |