Martin F. Jackson is President & VP at SELECT MEDICAL HOLDINGS CORP (SEM). They have made 6 open-market trades across 1 company since 2017, most recently 2025-08-01.
CIK 0001168882
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SEM | 1,383,421 | $22.8M |
Shares reported on the most recent Form 4, priced at the 2025-08-04 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SEM | SELL | 2021-06-16 | 2021-06-17 | $42.61 | $4.3M | -2.1% | -9.1% | -16.8% |
| SEM | SELL | 2021-05-28 | 2021-06-01 | $40.07 | $2.0M | +3.7% | +5.3% | -13.4% |
| SEM | SELL | 2021-05-26 | 2021-05-28 | $40.17 | $8.0M | +2.5% | +4.0% | -16.5% |
| SEM | SELL | 2020-06-03 | 2020-06-05 | $17.10 | $3.4M | -23.9% | -23.2% | +6.6% |
| SEM | SELL | 2017-12-20 | 2017-12-22 | $17.05 | $4.6M | +5.6% | +2.6% | +6.2% |
| SEM | SELL | 2017-12-12 | 2017-12-14 | $17.06 | $5.3M | +2.4% | +4.2% | +7.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.