Dagmar Dolby is 10% Owner at Dolby Laboratories, Inc. (DLB). They have made 146 open-market trades across 1 company since 2013, most recently 2026-09-15.
CIK 0001308547
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 146 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DLB | 119,024 | $7.1M |
Shares reported on the most recent Form 4, priced at the 2026-09-17 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 27% | 18% | 34% |
| Avg Move | +2.1% | +5.2% | +8.5% |
| Scored | 146 | 146 | 146 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DLB | SELL | 2019-07-24 | 2019-07-25 | $65.99 | $9.9M | -11.9% | -8.7% | -4.7% |
| DLB | SELL | 2019-07-12 | 2019-07-16 | $65.08 | $6.1M | +1.5% | -10.6% | -4.3% |
| DLB | SELL | 2019-07-05 | 2019-07-09 | $65.01 | $3.4M | +2.5% | -5.6% | -0.7% |
| DLB | SELL | 2019-07-02 | 2019-07-03 | $65.13 | $6.9M | +0.9% | -9.2% | +0.3% |
| DLB | SELL | 2019-06-26 | 2019-06-27 | $65.06 | $6.7M | -2.0% | +2.5% | -2.6% |
| DLB | SELL | 2019-06-20 | 2019-06-24 | $65.11 | $12.1M | +0.2% | +2.0% | -3.6% |
| DLB | SELL | 2019-05-15 | 2019-05-16 | $65.04 | $5.4M | -4.3% | -1.5% | -9.1% |
| DLB | SELL | 2019-05-01 | 2019-05-02 | $65.10 | $8.6M | -2.1% | -8.0% | +4.2% |
| DLB | SELL | 2019-04-24 | 2019-04-26 | $65.01 | $3.8M | -0.4% | -3.1% | +2.8% |
| DLB | SELL | 2019-04-17 | 2019-04-18 | $65.14 | $2.0M | +0.1% | -4.1% | +1.2% |
| DLB | SELL | 2019-03-04 | 2019-03-06 | $65.05 | $313K | -0.1% | -0.5% | -3.6% |
| DLB | SELL | 2019-02-26 | 2019-02-28 | $65.18 | $9.6M | -1.0% | -1.9% | -6.1% |
| DLB | SELL | 2019-02-06 | 2019-02-07 | $65.25 | $3.3M | +2.4% | +2.1% | +0.7% |
| DLB | SELL | 2019-02-04 | 2019-02-06 | $65.38 | $6.8M | +0.6% | -0.9% | +0.4% |
| DLB | SELL | 2018-07-06 | 2018-07-10 | $61.94 | $6.5M | +4.2% | +4.7% | +9.9% |
| DLB | SELL | 2018-07-03 | 2018-07-06 | $61.34 | $6.1M | +3.9% | +5.5% | +11.2% |
| DLB | SELL | 2018-06-29 | 2018-07-02 | $61.47 | $6.1M | +3.3% | +3.8% | +12.1% |
| DLB | SELL | 2018-06-15 | 2018-06-19 | $65.31 | $6.5M | -5.5% | -0.1% | +6.1% |
| DLB | SELL | 2018-06-11 | 2018-06-13 | $64.11 | $9.6M | -4.6% | -1.5% | +9.2% |
| DLB | SELL | 2018-06-05 | 2018-06-06 | $63.87 | $9.6M | +1.5% | -4.5% | +8.8% |
| DLB | SELL | 2018-05-30 | 2018-05-31 | $62.59 | $5.3M | +1.8% | -2.3% | +11.3% |
| DLB | SELL | 2018-05-25 | 2018-05-30 | $61.54 | $6.2M | +2.9% | -1.4% | +11.7% |
| DLB | SELL | 2018-05-23 | 2018-05-25 | $61.50 | $6.1M | +5.7% | +1.3% | +14.7% |
| DLB | SELL | 2018-05-21 | 2018-05-23 | $62.27 | $9.3M | +4.2% | +4.1% | +11.7% |
| DLB | SELL | 2018-05-17 | 2018-05-21 | $62.49 | $6.2M | +0.7% | +4.5% | +9.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.