Ein Mark insider trades
Ein Mark has filed 60 Form 4s with the SEC that we hold, for Lindblad Expeditions Holdings, INC. (LIND) (Director), Custom Truck One Source, Inc. (CTOS) (Director), SHCO (Director) and DOMA (Director). Across all of them we count 7 purchases worth $7.2M and 0 sales worth $0 reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a purchase of 351,903 shares of Custom Truck One Source, Inc. worth $2.1M, dated 2022-05-13. The first filing on our record is dated 2021-07-02 and the latest 2026-08-11.
Lindblad Expeditions Holdings, INC. (LIND)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Custom Truck One Source, Inc. (CTOS)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-05-13 | P, purchase reported on Form 4 | 351,903 | $2.1M | 2022-05-16 |
| 2022-05-16 | P, purchase reported on Form 4 | 50,000 | $289.5K | 2022-05-18 |
| 2023-11-10 | P, purchase reported on Form 4 | 100,000 | $496.0K | 2023-11-14 |
SHCO
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-07-19 | P, purchase reported on Form 4 | 125,000 | $1.8M | 2021-07-21 |
| 2022-12-08 | P, purchase reported on Form 4 | 356,936 | $1.4M | 2022-12-12 |
| 2022-12-09 | P, purchase reported on Form 4 | 100,000 | $409.0K | 2022-12-12 |
DOMA
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-02-23 | P, purchase reported on Form 4 | 332,970 | $799.1K | 2022-02-24 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1246840) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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