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: 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 13, 202572.7%
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 | +1,929 | $725.89 | $1,400,242 |
| Oct 30, 2026 | Regeneron Pharmaceuticals Inc. | Open-market sale | −1,929 | $875.00 | $1,687,875 |
| Jan 2, 2026 | Regeneron Pharmaceuticals Inc. | Grant or award | +155 | — | — |
| Jan 2, 2025 | Regeneron Pharmaceuticals Inc. | Grant or award | +166 | — | — |
| Jun 14, 2024 | Regeneron Pharmaceuticals Inc. | Option exercise | +1,535 | $625.60 | $960,296 |
| Jun 14, 2024 | Regeneron Pharmaceuticals Inc. | Open-market sale | −1,535 | $1,040.00 | $1,596,400 |
| May 28, 2024 | Regeneron Pharmaceuticals Inc. | Option exercise | +1,172 | $625.60 | $733,203 |
| May 28, 2024 | Regeneron Pharmaceuticals Inc. | Open-market sale | −1,172 | $974.86 | $1,142,536 |
| Jan 2, 2024 | Regeneron Pharmaceuticals Inc. | Grant or award | +135 | — | — |
| Dec 27, 2023 | Regeneron Pharmaceuticals Inc. | Option exercise | +2,049 | $482.68 | $989,011 |
| Dec 27, 2023 | Regeneron Pharmaceuticals Inc. | Open-market sale | −2,049 | $898.00 | $1,840,002 |
| Apr 21, 2023 | Regeneron Pharmaceuticals Inc. | Option exercise | +3,070 | $520.01 | $1,596,431 |
| Apr 21, 2023 | Regeneron Pharmaceuticals Inc. | Open-market sale | −3,070 | $798.42 | $2,451,149 |
| Feb 6, 2023 | Regeneron Pharmaceuticals Inc. | Option exercise | +3,071 | $520.01 | $1,596,951 |
| Feb 6, 2023 | Regeneron Pharmaceuticals Inc. | Open-market sale | −3,071 | $798.00 | $2,450,658 |
Questions about Michael S. Brown
What boards is Michael S. Brown on?
Michael S. Brown sits on the board of Regeneron Pharmaceuticals Inc.
How long has Michael S. Brown served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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