Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 3 years
- Director since
- 2023
3 years of board service in total across 1 board, counting each seat separately. Longest: Regeneron Pharmaceuticals 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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Regeneron Pharmaceuticals Inc. June 14, 202499.7%
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 30, 2026 | Regeneron Pharmaceuticals Inc. | Option exercise | +400 | $719.37 | $287,748 |
| Oct 30, 2026 | Regeneron Pharmaceuticals Inc. | Open-market sale | −400 | $900.00 | $360,000 |
| Sep 2, 2026 | Regeneron Pharmaceuticals Inc. | Option exercise | +400 | $719.37 | $287,748 |
| Sep 2, 2026 | Regeneron Pharmaceuticals Inc. | Open-market sale | −400 | $850.00 | $340,000 |
| Aug 10, 2026 | Regeneron Pharmaceuticals Inc. | Option exercise | +400 | $719.37 | $287,748 |
| Aug 10, 2026 | Regeneron Pharmaceuticals Inc. | Open-market sale | −400 | $800.00 | $320,000 |
| Jan 2, 2026 | Regeneron Pharmaceuticals Inc. | Grant or award | +155 | — | — |
| Jan 2, 2025 | Regeneron Pharmaceuticals Inc. | Grant or award | +166 | — | — |
| Jan 2, 2024 | Regeneron Pharmaceuticals Inc. | Grant or award | +42 | — | — |
| Sep 8, 2023 | Regeneron Pharmaceuticals Inc. | Grant or award | +240 | — | — |
Questions about Kathryn Guarini
What boards is Kathryn Guarini on?
Kathryn Guarini sits on the board of Regeneron Pharmaceuticals Inc.
How long has Kathryn Guarini served on boards?
Our records show at least 3 years of board service across 1 board, the earliest from 2023.
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