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Sandisk stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+302.3% to $835.06
Sandisk (SNDK) stock rose 302% over the last 252 sessions, to $835.06. On the way it reported 5 quarters, its insiders filed no open-market trades (10b5-1 plan sales aside) and 5 Form 144 notices of planned sales, and the company filed 4 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 29, 2026 | Earnings | Earnings: beat the EPS estimate by 6.7% | −5.5% (−5.1% vs SPY) | −30.3% (−29.6% vs SPY) | — |
| Sep 17, 2026 | Form 144 | Form 144: David Goeckeler plans to sell $51.4M | +6.0% (+4.9% vs SPY) | +17.8% (+15.8% vs SPY) | −8.6% (−11.2% vs SPY) |
| Sep 16, 2026 | 8-K | Directors and officers: departures, appointments, pay | +6.0% (+4.9% vs SPY) | +17.8% (+15.8% vs SPY) | −8.6% (−11.2% vs SPY) |
| Sep 15, 2026 | Form 144 | Form 144: Luis Visoso plans to sell $4.7M | −1.4% (−0.9% vs SPY) | +12.9% (+11.0% vs SPY) | −4.6% (−7.1% vs SPY) |
| Sep 14, 2026 | Form 144 | Form 144: David Goeckeler plans to sell $55.3M | −5.1% (−4.7% vs SPY) | +9.3% (+9.3% vs SPY) | −9.4% (−11.4% vs SPY) |
| Sep 11, 2026 | 8-K | Material definitive agreement | −5.1% (−4.7% vs SPY) | +9.3% (+9.3% vs SPY) | −9.4% (−11.4% vs SPY) |
| Sep 8, 2026 | Form 144 | Form 144: Bernard Shek plans to sell $7.1M | −0.1% (+0.4% vs SPY) | −11.4% (−10.2% vs SPY) | −4.7% (−6.1% vs SPY) |
| Sep 3, 2026 | Form 144 | Form 144: Alper Ilkbahar plans to sell $9.7M | +0.1% (−0.9% vs SPY) | +8.6% (+9.5% vs SPY) | +10.2% (+9.3% vs SPY) |
| Aug 5, 2026 | Earnings | Earnings: beat the EPS estimate by 13.7% | −5.5% (−5.4% vs SPY) | −11.6% (−11.5% vs SPY) | +8.4% (+9.2% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 59.7% | +3.0% (+2.0% vs SPY) | +28.1% (+25.1% vs SPY) | +46.5% (+40.4% vs SPY) |
| Mar 25, 2026 | 8-K | Material definitive agreement | −3.6% (−4.1% vs SPY) | −10.0% (−9.6% vs SPY) | +28.3% (+20.2% vs SPY) |
| Jan 29, 2026 | Earnings | Earnings: beat the EPS estimate by 75.0% | +2.2% (+2.4% vs SPY) | +10.3% (+11.6% vs SPY) | +18.6% (+20.0% vs SPY) |
| Jan 2, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.4% (−1.1% vs SPY) | +31.6% (+30.0% vs SPY) | +92.7% (+91.8% vs SPY) |
| Nov 6, 2025 | Earnings | Earnings: beat the EPS estimate by 36.9% | −4.2% (−3.1% vs SPY) | +26.8% (+26.0% vs SPY) | +5.4% (+4.2% vs SPY) |
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% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±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 → Sandisk: 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.