Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Tandem Diabetes Care 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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Tandem Diabetes Care Inc. May 20, 202687.2%
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Tandem Diabetes Care Inc. May 21, 202584.8%
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Bionano Genomics Inc. June 18, 202487.6%
-
Tandem Diabetes Care Inc. May 22, 202490.0%
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Tandem Diabetes Care Inc. May 24, 202382.6%
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 27, 2026 | Tandem Diabetes Care Inc. | Option exercise | +1,700 | $19.00 | $32,300 |
| Oct 27, 2026 | Tandem Diabetes Care Inc. | Open-market sale | −1,700 | $19.15 | $32,555 |
| May 21, 2026 | Tandem Diabetes Care Inc. | Option exercise | +8,759 | — | — |
| May 22, 2025 | Tandem Diabetes Care Inc. | Option exercise | +4,387 | $20.64 | $90,548 |
| May 24, 2024 | Tandem Diabetes Care Inc. | Option exercise | +4,434 | $51.73 | $229,371 |
| May 25, 2023 | Tandem Diabetes Care Inc. | Option exercise | +2,757 | — | — |
Questions about Christopher J. Twomey
What boards is Christopher J. Twomey on?
Christopher J. Twomey sits on the boards of Bionano Genomics Inc. and Tandem Diabetes Care Inc.
How long has Christopher J. Twomey served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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