Harold M. Messmer Jr.
Executive Chairman at Robert Half Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Robert Half Inc., 3 years.
Robert Half Inc.
Director · Chairman
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 |
|---|---|---|---|---|---|
| Mar 23, 2026 | Robert Half Inc. | Grant or award | +649 | — | — |
| Mar 23, 2026 | Robert Half Inc. | Grant or award | +44,319 | — | — |
| Mar 23, 2026 | Robert Half Inc. | Shares withheld for tax | −5,896 | $24.82 | $146,339 |
| Mar 25, 2025 | Robert Half Inc. | Grant or award | +1,236 | — | — |
| Mar 25, 2025 | Robert Half Inc. | Grant or award | +21,542 | — | — |
| Mar 25, 2025 | Robert Half Inc. | Shares withheld for tax | −5,689 | $53.43 | $303,963 |
| Mar 19, 2024 | Robert Half Inc. | Grant or award | +12,289 | — | — |
| Mar 19, 2024 | Robert Half Inc. | Grant or award | +14,658 | — | — |
| Mar 19, 2024 | Robert Half Inc. | Shares withheld for tax | −14,289 | $78.58 | $1,122,830 |
| Mar 20, 2023 | Robert Half Inc. | Grant or award | +34,314 | — | — |
| Mar 20, 2023 | Robert Half Inc. | Grant or award | +15,272 | — | — |
| Mar 20, 2023 | Robert Half Inc. | Shares withheld for tax | −40,416 | $75.42 | $3,048,175 |
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