D. Scott MacKesy is 10% at SELECT MEDICAL HOLDINGS CORP (SEM). They have made 17 open-market trades across 7 companies since 2006, most recently 2026-06-15.
CIK 0001212997
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.
1 open-market purchase totalling $17.5M since 2008, against 16 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PAYC | 5,644,975 | $1.4B |
| SEM | 966,971 | $16.0M |
| CWAN | 240,129 | $5.9M |
| MINI | 7,079 | $209K |
| ADS | 2,549 | $145K |
| UAM | 2,121 | $21K |
| MDAS | 28,114 | — |
| ITCD | 4,127,611 | — |
| CYCL | 17,922,000 |
Shares reported on the most recent Form 4, priced at the 2025-06-16 close. 5 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 100% | 60% | 60% |
| Avg Move | -14.1% | -1.1% | -3.8% |
| Scored | 10 | 10 | 10 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CWAN | SELL | 2026-06-15 | 2026-06-17 | $24.30 | $15.4M | N/A | N/A | N/A |
| PAYC | SELL | 2015-11-18 | 2015-11-18 | $41.75 | $117.3M | -16.7% | -3.1% | -29.8% |
| PAYC | SELL | 2015-09-28 | 2015-09-30 | $37.56 | $25.4M | -16.7% | -3.1% | -3.1% |
| PAYC | SELL | 2015-09-21 | 2015-09-23 | $37.56 | $107.7M | -16.7% | -3.1% | -3.1% |
| PAYC | SELL | 2015-05-20 | 2015-05-22 | $35.75 | $184.1M | -16.7% | -3.1% | -3.1% |
| PAYC | SELL | 2015-01-14 | 2015-01-16 | $22.50 | $127.4M | -16.7% | -3.1% | -3.1% |
| SEM | SELL | 2013-12-17 | 2013-12-19 | $10.25 | $398K | -12.3% | +1.6% | +1.6% |
| SEM | SELL | 2013-12-05 | 2013-12-09 | $8.56 | $4.9M | -12.3% | +1.6% | +1.6% |
| SEM | SELL | 2013-12-02 | 2013-12-04 | $8.56 | $5.6M | -12.3% | +1.6% | +1.6% |
| SEM | SELL | 2013-02-26 | 2013-02-28 | $9.05 | $443K | -12.3% | +1.6% | +1.6% |
| SVVS | SELL | 2010-12-15 | 2010-12-16 | $25.12 | $251K | N/A | N/A | N/A |
| CYCL | SELL | 2009-04-27 | 2009-04-29 | $8.26 | $9.9M | N/A | N/A | N/A |
| UAM | SELL | 2009-03-04 | 2009-03-05 | $6.50 | $134K | -8.5% | -2.2% | -2.2% |
| CYCL | SELL | 2009-03-03 | 2009-03-05 | $8.25 | $127K | N/A | N/A | N/A |
| SVVS | BUY | 2008-05-06 | 2008-05-08 | $15.34 | $17.5M | N/A | N/A | N/A |
| SVVS | SELL | 2007-08-22 | 2007-08-22 | $39.82 | $7K | N/A | N/A | N/A |
| RHD | SELL | 2006-11-09 | 2006-11-13 | $59.12 | $364.2M | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| — |
| SVVS | 4,156 | — |
| AGAM | 37,071 | — |
| Total | $1.4B |