Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 8 years
- Director since
- 2023
8 years of board service in total across 2 boards, counting each seat separately. Longest: Lindblad Expeditions Holdings 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.
-
Custom Truck One Source Inc. June 11, 202688.3%
-
Lindblad Expeditions Holdings Inc. June 4, 202478.6%
-
Custom Truck One Source Inc. June 15, 202386.9%
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 |
|---|---|---|---|---|---|
| Aug 8, 2026 | Lindblad Expeditions Holdings Inc. | Grant or award | +3,240 | — | — |
| Mar 31, 2026 | Custom Truck One Source Inc. | Option exercise | +26,859 | — | — |
| Oct 17, 2025 | Custom Truck One Source Inc. | Other | −3,670,279 | — | — |
| Aug 8, 2025 | Lindblad Expeditions Holdings Inc. | Grant or award | +8,899 | $12.36 | $109,992 |
| Mar 31, 2025 | Custom Truck One Source Inc. | Option exercise | +22,218 | — | — |
| Aug 8, 2024 | Lindblad Expeditions Holdings Inc. | Grant or award | +14,647 | $7.51 | $109,999 |
| Jul 31, 2024 | Custom Truck One Source Inc. | Sold back to the company | −1,832,810 | — | — |
| Mar 31, 2024 | Custom Truck One Source Inc. | Option exercise | +18,640 | — | — |
| Dec 31, 2023 | Lindblad Expeditions Holdings Inc. | Grant or award | +2,329 | — | — |
| Dec 20, 2023 | Lindblad Expeditions Holdings Inc. | Gift | −100,000 | — | — |
| Nov 10, 2023 | Custom Truck One Source Inc. | Open-market purchase | +100,000 | $4.96 | $496,000 |
| Sep 30, 2023 | Lindblad Expeditions Holdings Inc. | Grant or award | +3,645 | — | — |
| Aug 8, 2023 | Lindblad Expeditions Holdings Inc. | Grant or award | +8,276 | — | — |
| Jun 30, 2023 | Lindblad Expeditions Holdings Inc. | Grant or award | +2,412 | — | — |
| Jun 22, 2023 | Lindblad Expeditions Holdings Inc. | Other | −46,157 | — | — |
Questions about Mark Ein
What boards is Mark Ein on?
Mark Ein sits on the boards of Custom Truck One Source Inc. and Lindblad Expeditions Holdings Inc.
How long has Mark Ein served on boards?
Our records show at least 8 years of board service across 2 boards, the earliest from 2023.
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