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: Quest Diagnostics Incorporated, 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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Quest Diagnostics Incorporated May 20, 202691.8%
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Quest Diagnostics Incorporated May 15, 202594.1%
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Quest Diagnostics Incorporated May 16, 202491.5%
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Quest Diagnostics Incorporated May 17, 202392.3%
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 26, 2026 | Quest Diagnostics Incorporated | Open-market sale | −1,203 | $243.00 | $292,329 |
| May 20, 2026 | Quest Diagnostics Incorporated | Grant or award | +1,142 | — | — |
| Oct 22, 2025 | Quest Diagnostics Incorporated | Open-market sale | −1,482 | $182.40 | $270,317 |
| May 15, 2025 | Quest Diagnostics Incorporated | Grant or award | +1,203 | — | — |
| May 16, 2024 | Quest Diagnostics Incorporated | Grant or award | +1,482 | — | — |
| May 17, 2023 | Quest Diagnostics Incorporated | Grant or award | +1,369 | — | — |
Questions about Gary M. Pfeiffer
What boards is Gary M. Pfeiffer on?
Gary M. Pfeiffer sits on the board of Quest Diagnostics Incorporated.
How long has Gary M. Pfeiffer served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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