Mark S. Schroeder is President & VP at LABORATORY CORP OF AMERICA HOLDINGS (LH). They have made 9 open-market trades across 1 company since 2020, most recently 2026-03-26.
CIK 0001793112
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 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| LH | 12,677 | $4.0M |
Shares reported on the most recent Form 4, priced at the 2026-03-30 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| LH | SELL · 10b5-1 | 2025-03-28 | 2025-03-31 | $231.67 | $1.2M | -5.8% | +3.9% | +13.2% |
| LH | SELL · 10b5-1 | 2025-02-28 | 2025-03-04 | $249.23 | $2.7M | -6.1% | -8.5% | -2.8% |
| LH | SELL · 10b5-1 | 2024-04-01 | 2024-04-03 | $217.29 | $2.8M | -4.9% | -5.8% | -5.2% |
| LH | SELL · 10b5-1 | 2024-03-07 | 2024-03-11 | $218.45 | $2.2M | -3.1% | -5.0% | -10.1% |
| LH | SELL · 10b5-1 | 2023-05-18 | 2023-05-22 | $216.77 | $325K | -0.5% | +6.9% | -1.1% |
| LH | SELL · 10b5-1 | 2023-03-31 | 2023-04-03 | $225.81 | $1.8M | -0.7% | -2.1% | -9.5% |
| LH | SELL | 2023-02-14 | 2023-02-16 | $247.63 | $153K | -7.4% | -15.3% | -15.5% |
| LH | SELL | 2023-02-07 | 2023-02-09 | $243.01 | $199K | -0.2% | -9.7% | -8.0% |
| LH | SELL | 2023-02-03 | 2023-02-06 | $253.90 | $165K | +5.4% | -5.4% | -8.4% |
| LH | SELL | 2022-11-08 | 2022-11-10 | $232.67 | $519K | -2.7% | -6.5% | +1.0% |
| LH | SELL | 2022-03-29 | 2022-03-31 | $277.11 | $1.3M | +1.6% | -8.1% | -9.2% |
| LH | SELL | 2022-02-15 | 2022-02-17 | $273.98 | $113K | +3.3% | +5.7% | -7.4% |
| LH | SELL | 2022-02-07 | 2022-02-08 | $277.38 | $113K | -5.5% | -4.9% | -13.8% |
| LH | SELL · 10b5-1 | 2022-02-03 | 2022-02-04 | $271.81 | $44K | -2.8% | -3.8% | -9.2% |
| LH | SELL | 2021-03-30 | 2021-04-01 | $251.88 | $336K | -0.1% | +5.5% | +8.9% |
| LH | SELL · 10b5-1 | 2021-02-16 | 2021-02-17 | $237.06 | $45K | -0.1% | -0.6% | +10.5% |
| LH | SELL · 10b5-1 | 2021-02-05 | 2021-02-08 | $225.85 | $46K | +9.2% | +3.1% | +22.8% |
| LH | SELL | 2020-11-06 | 2020-11-10 | $214.59 | $252K | -0.0% | +2.4% | +11.4% |
| LH | SELL · 10b5-1 | 2020-02-13 | 2020-02-14 | $188.49 | $35K | -5.8% | -27.7% | -15.5% |
| LH | SELL · 10b5-1 | 2020-02-10 | 2020-02-11 | $181.99 | $20K | +0.6% | -26.6% | -9.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.