Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 5 years
- Director since
- 2023
5 years of board service in total across 2 boards, counting each seat separately. Longest: Cabot Corporation, 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Cabot Corporation March 9, 202398.6%
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 |
|---|---|---|---|---|---|
| Feb 26, 2026 | The Taiwan Fund Inc. | Open-market purchase | +50,687 | $64.90 | $3,289,580 |
| Jan 8, 2026 | Cabot Corporation | Grant or award | +486 | — | — |
| Jan 10, 2025 | Cabot Corporation | Grant or award | +1,788 | — | — |
| Jan 11, 2024 | Cabot Corporation | Grant or award | +2,035 | — | — |
| Jan 12, 2023 | Cabot Corporation | Grant or award | +1,854 | — | — |
Questions about William C. Kirby
What boards is William C. Kirby on?
William C. Kirby sits on the boards of Cabot Corporation and The Taiwan Fund Inc.
How long has William C. Kirby served on boards?
Our records show at least 5 years of board service across 2 boards, the earliest from 2023.
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