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Dolby Laboratories stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+2.0% to $64.83
Dolby Laboratories (DLB) stock rose 2% over the last 252 sessions, to $64.83. On the way it reported 4 quarters, its insiders filed 7 open-market trades and 7 Form 144 notices of planned sales, and the company filed 2 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 1, 2026 | Form 144 | Form 144: John Couling plans to sell $451K | +0.5% (+0.3% vs SPY) | −0.7% (−2.6% vs SPY) | +6.8% (+5.9% vs SPY) |
| Sep 1, 2026 | Form 144 | Form 144: John Couling plans to sell $468K | −0.2% (+0.5% vs SPY) | +1.2% (+1.4% vs SPY) | −4.7% (−4.3% vs SPY) |
| Aug 27, 2026 | 8-K | Directors and officers: departures, appointments, pay | −4.0% (−4.6% vs SPY) | −5.0% (−4.9% vs SPY) | −10.4% (−11.3% vs SPY) |
| Aug 25, 2026 | Form 144 | Form 144: Ryan H Nicholson plans to sell $77K | +0.1% (−0.2% vs SPY) | −7.0% (−7.5% vs SPY) | −13.0% (−13.8% vs SPY) |
| Aug 25, 2026 | Insider sale | Nicholson Ryan sold $77K | +0.1% (−0.2% vs SPY) | −7.0% (−7.5% vs SPY) | −13.0% (−13.8% vs SPY) |
| Aug 14, 2026 | Form 144 | Form 144: Shriram Revankar plans to sell $188K | 0.0% (+0.2% vs SPY) | +2.9% (+4.9% vs SPY) | −0.7% (+1.5% vs SPY) |
| Aug 10, 2026 | Form 144 | Form 144: Ryan H Nicholson plans to sell $84K | +0.5% (+0.6% vs SPY) | +1.6% (+1.2% vs SPY) | +1.5% (+2.4% vs SPY) |
| Aug 10, 2026 | Insider sale | Nicholson Ryan sold $84K | +0.5% (+0.6% vs SPY) | +1.6% (+1.2% vs SPY) | +1.5% (+2.4% vs SPY) |
| Aug 4, 2026 | Insider sale | Nicholson Ryan sold $22K | +2.5% (+0.7% vs SPY) | +3.9% (+1.9% vs SPY) | +3.4% (+2.8% vs SPY) |
| Aug 3, 2026 | Form 144 | Form 144: John Couling plans to sell $460K | +1.6% (+0.1% vs SPY) | +4.9% (+1.5% vs SPY) | +5.1% (+2.5% vs SPY) |
| Jul 30, 2026 | Earnings | Earnings: beat the EPS estimate by 3.0% | −1.5% (−3.1% vs SPY) | +15.5% (+10.1% vs SPY) | +17.8% (+12.2% vs SPY) |
| Jul 1, 2026 | Form 144 | Form 144: John Couling plans to sell $408K | 0.0% (+0.2% vs SPY) | −5.3% (−5.1% vs SPY) | −1.6% (−0.9% vs SPY) |
| May 22, 2026 | Insider sale | Pendleton Todd sold $648K | +1.2% (+0.8% vs SPY) | +3.2% (+1.4% vs SPY) | −3.7% (−2.7% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 2.5% | +1.4% (+0.4% vs SPY) | −8.7% (−11.8% vs SPY) | −11.9% (−18.0% vs SPY) |
| Feb 13, 2026 | Insider sale | Nicholson Ryan sold $177K | −0.8% (−0.9% vs SPY) | −4.0% (−5.2% vs SPY) | −8.4% (−6.6% vs SPY) |
| Feb 2, 2026 | Insider sale | Couling John D sold $433K | +0.5% (0.0% vs SPY) | +1.0% (+1.2% vs SPY) | +1.4% (+3.1% vs SPY) |
| Jan 29, 2026 | Earnings | Earnings: beat the EPS estimate by 6.7% | +3.0% (+3.2% vs SPY) | +5.2% (+6.6% vs SPY) | +9.0% (+10.3% vs SPY) |
| Nov 20, 2025 | Insider sale | Couling John D sold $408K | +0.8% (+2.3% vs SPY) | +3.0% (+0.5% vs SPY) | +2.4% (−0.5% vs SPY) |
| Nov 18, 2025 | Earnings | Earnings: beat the EPS estimate by 40.4% | +0.6% (+1.5% vs SPY) | +3.4% (+2.9% vs SPY) | +4.4% (+3.6% vs SPY) |
| Nov 14, 2025 | 8-K | Directors and officers: departures, appointments, pay | −1.6% (−0.6% vs SPY) | +2.9% (+4.8% vs SPY) | +2.4% (+1.4% vs SPY) |
Insiders’ record here
In the year on the chart, Dolby Laboratories' insiders reported 0 open-market buys ($0) and 7 sales ($1.8M). Of the 6 old enough to score, 3 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +5.9%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Dolby Laboratories: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.