Martin Mackay
Chief Executive Officer at Rallybio Corporation
Sits on 3 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 8 years
- Director since
- 2023
8 years of board service in total across 3 boards, counting each seat separately. Longest: Rallybio Corporation, 3 years.
Chief executive roles
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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Charles River Laboratories International Inc. May 5, 202699.6%
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Charles River Laboratories International Inc. May 20, 202598.9%
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Rallybio Corporation May 13, 202588.4%
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Charles River Laboratories International Inc. May 8, 202486.1%
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Charles River Laboratories International Inc. May 15, 202362.0%
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 |
|---|---|---|---|---|---|
| Nov 4, 2026 | Rallybio Corporation | Option exercise | +11,607 | $7.60 | $88,213 |
| Nov 4, 2026 | Rallybio Corporation | Option exercise | +3,562 | $2.38 | $8,478 |
| Nov 4, 2026 | Rallybio Corporation | Option exercise | +18,055 | $4.45 | $80,345 |
| May 8, 2026 | Charles River Laboratories International Inc. | Grant or award | +1,438 | $177.62 | $255,418 |
| May 8, 2026 | Charles River Laboratories International Inc. | Grant or award | +1,407 | $177.62 | $249,911 |
| May 21, 2025 | Charles River Laboratories International Inc. | Grant or award | +946 | $134.98 | $127,691 |
| May 21, 2025 | Charles River Laboratories International Inc. | Grant or award | +815 | $134.98 | $110,009 |
| May 13, 2024 | Charles River Laboratories International Inc. | Grant or award | +559 | $228.41 | $127,681 |
| May 13, 2024 | Charles River Laboratories International Inc. | Grant or award | +372 | $228.41 | $84,969 |
| Jul 3, 2023 | Charles River Laboratories International Inc. | Grant or award | +95 | — | — |
| May 31, 2023 | Charles River Laboratories International Inc. | Grant or award | +338 | — | — |
| May 15, 2023 | Charles River Laboratories International Inc. | Grant or award | +664 | — | — |
Questions about Martin Mackay
What boards is Martin Mackay on?
Martin Mackay sits on the boards of Charles River Laboratories International Inc., Kailera Therapeutics Inc. and Rallybio Corporation.
What company is Martin Mackay the CEO of?
Martin Mackay is Chief Executive Officer of Rallybio Corporation.
How long has Martin Mackay served on boards?
Our records show at least 8 years of board service across 3 boards, the earliest from 2023.
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