Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 6 years
- Director since
- 2023
6 years of board service in total across 2 boards, counting each seat separately. Longest: Huntington Ingalls Industries Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Huntington Ingalls Industries Inc. April 29, 202699.6%
-
Centrus Energy Corp. June 20, 202596.1%
-
Huntington Ingalls Industries Inc. May 5, 202599.7%
-
Huntington Ingalls Industries Inc. May 1, 202499.5%
-
Huntington Ingalls Industries Inc. May 2, 202398.7%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 1, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +177 | $274.33 | $48,556 |
| Sep 11, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +21 | — | — |
| Jul 1, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +174 | $278.97 | $48,541 |
| Jun 12, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +19 | — | — |
| Apr 1, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +123 | $393.32 | $48,378 |
| Mar 13, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +13 | — | — |
| Jan 2, 2026 | Huntington Ingalls Industries Inc. | Grant or award | +139 | $349.75 | $48,615 |
| Dec 12, 2025 | Huntington Ingalls Industries Inc. | Grant or award | +16 | — | — |
| Oct 1, 2025 | Huntington Ingalls Industries Inc. | Grant or award | +144 | $286.01 | $41,185 |
| Sep 12, 2025 | Huntington Ingalls Industries Inc. | Grant or award | +18 | — | — |
| Jul 1, 2025 | Huntington Ingalls Industries Inc. | Grant or award | +167 | $246.31 | $41,134 |
| Jun 20, 2025 | Centrus Energy Corp. | Grant or award | +684 | — | — |
| Jun 20, 2025 | Centrus Energy Corp. | Shares withheld for tax | −1,168 | — | — |
| Jun 13, 2025 | Huntington Ingalls Industries Inc. | Grant or award | +20 | — | — |
| Apr 1, 2025 | Huntington Ingalls Industries Inc. | Grant or award | +204 | $202.20 | $41,249 |
Questions about Stephanie L. O'Sullivan
What boards is Stephanie L. O'Sullivan on?
Stephanie L. O'Sullivan sits on the boards of Centrus Energy Corp. and Huntington Ingalls Industries Inc.
How long has Stephanie L. O'Sullivan served on boards?
Our records show at least 6 years of board service across 2 boards, the earliest from 2023.
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