David W. Grzebinski
President & CEO at Kirby Corporation
Sits on 1 board. Last updated September 28, 2026
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: Kirby 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.
-
Kirby Corporation April 27, 202699.4%
-
Kirby Corporation April 27, 202399.2%
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 2, 2026 | Kirby Corporation | Open-market sale | −18,310 | $141.32 | $2,587,569 |
| Feb 24, 2026 | Kirby Corporation | Option exercise | +34,152 | $73.29 | $2,503,000 |
| Feb 24, 2026 | Kirby Corporation | Open-market sale | −34,152 | $130.05 | $4,441,468 |
| Feb 3, 2026 | Kirby Corporation | Option exercise | +22,470 | — | — |
| Feb 3, 2026 | Kirby Corporation | Shares withheld for tax | −8,844 | $120.68 | $1,067,294 |
| Jan 24, 2026 | Kirby Corporation | Option exercise | +8,150 | — | — |
| Jan 24, 2026 | Kirby Corporation | Shares withheld for tax | −3,244 | $128.70 | $417,503 |
| Nov 21, 2025 | Kirby Corporation | Option exercise | +29,451 | $73.93 | $2,177,312 |
| Nov 21, 2025 | Kirby Corporation | Open-market sale | −29,451 | $107.41 | $3,163,332 |
| Feb 3, 2025 | Kirby Corporation | Option exercise | +18,347 | — | — |
| Feb 3, 2025 | Kirby Corporation | Shares withheld for tax | −7,221 | $107.14 | $773,658 |
| Jan 24, 2025 | Kirby Corporation | Option exercise | +11,913 | — | — |
| Jan 24, 2025 | Kirby Corporation | Shares withheld for tax | −4,729 | $109.09 | $515,887 |
| Nov 14, 2024 | Kirby Corporation | Gift | −1,000 | — | — |
| Sep 16, 2024 | Kirby Corporation | Option exercise | +26,358 | $75.50 | $1,990,029 |
Questions about David W. Grzebinski
What boards is David W. Grzebinski on?
David W. Grzebinski sits on the board of Kirby Corporation.
What company is David W. Grzebinski the CEO of?
David W. Grzebinski is President & CEO of Kirby Corporation.
How long has David W. Grzebinski served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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