Mark Andrew Sherman is VP at Dolby Laboratories, Inc. (DLB). They have made 43 open-market trades across 1 company since 2012, most recently 2025-12-17.
CIK 0001256708
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 43 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DLB | 93,945 | $5.6M |
Shares reported on the most recent Form 4, priced at the 2025-12-17 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DLB | SELL · 10b5-1 | 2025-12-16 | 2025-12-17 | $66.85 | $1.6M | -2.8% | -7.1% | -8.6% |
| DLB | SELL · 10b5-1 | 2025-12-01 | 2025-12-03 | $67.56 | $304K | +0.2% | -4.4% | -2.6% |
| DLB | SELL · 10b5-1 | 2025-06-04 | 2025-06-06 | $75.02 | $1.1M | -2.5% | -0.6% | -3.2% |
| DLB | SELL | 2025-05-30 | 2025-06-03 | $74.97 | $26K | -1.3% | +0.7% | -3.9% |
| DLB | SELL · 10b5-1 | 2025-01-30 | 2025-02-03 | $84.88 | $3.4M | +0.4% | -2.0% | -11.0% |
| DLB | SELL | 2024-12-17 | 2024-12-18 | $78.07 | $1.9M | +0.7% | +4.8% | +6.1% |
| DLB | SELL | 2024-05-28 | 2024-05-30 | $79.62 | $364K | -0.4% | +0.9% | -11.9% |
| DLB | SELL | 2023-12-18 | 2023-12-19 | $86.16 | $1.8M | +0.6% | -1.1% | -1.7% |
| DLB | SELL | 2023-07-12 | 2023-07-14 | $89.00 | $1.9M | +0.1% | -12.5% | -8.8% |
| DLB | SELL | 2023-05-08 | 2023-05-10 | $83.54 | $2.3M | -2.4% | -2.8% | -9.2% |
| DLB | SELL | 2023-02-03 | 2023-02-07 | $84.61 | $1.4M | -1.2% | -3.4% | -0.7% |
| DLB | SELL | 2022-12-20 | 2022-12-22 | $68.09 | $223K | +3.8% | +15.5% | +19.8% |
| DLB | SELL | 2022-12-16 | 2022-12-19 | $70.09 | $1.0M | +3.6% | +12.2% | +21.3% |
| DLB | SELL | 2022-02-09 | 2022-02-09 | $77.23 | $278K | -2.7% | -8.6% | -6.5% |
| DLB | SELL | 2021-12-17 | 2021-12-20 | $90.43 | $597K | +5.2% | -1.9% | -18.1% |
| DLB | SELL | 2021-03-01 | 2021-03-03 | $100.00 | $1.3M | +0.7% | +3.7% | -3.0% |
| DLB | SELL | 2021-02-16 | 2021-02-17 | $95.00 | $1.2M | +7.6% | +6.1% | +1.5% |
| DLB | SELL | 2021-02-05 | 2021-02-08 | $91.59 | $5.0M | +1.9% | +6.4% | +4.3% |
| DLB | SELL | 2020-12-18 | 2020-12-21 | $91.96 | $301K | +2.2% | +2.4% | +7.3% |
| DLB | SELL | 2020-12-16 | 2020-12-17 | $90.67 | $586K | +5.2% | +1.5% | +8.0% |
| DLB | SELL | 2020-11-03 | 2020-11-05 | $80.00 | $2.0M | +5.6% | +7.8% | +7.8% |
| DLB | SELL | 2020-11-02 | 2020-11-03 | $76.00 | $1.9M | +8.5% | +12.3% | +11.2% |
| DLB | SELL | 2020-02-19 | 2020-02-20 | $73.00 | $1.5M | -6.4% | -32.8% | -19.7% |
| DLB | SELL | 2020-02-06 | 2020-02-10 | $72.00 | $5.3M | +2.2% | -15.2% | -18.5% |
| DLB | SELL | 2020-02-05 | 2020-02-06 | $71.96 | $6.8M | +2.4% | -15.3% | -22.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.