SNDK — Sandisk Corp
Price · 2025-02-13 → 2026-08-21
382 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2025-02-13.
Performance
Technicals
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Measured signals that fired on SNDK
| date | signal | measured base rate |
|---|---|---|
| 2026-08-14 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-24 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-12 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-05-28 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-05-15 | Institutional holders jumped in a quarter ownership | -0.52% over 21 days · t = -0.38 · n = 1,553 not distinguishable from its control group |
| 2026-05-04 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-03 | Shek Bernard Chief Legal Officer & Secty | Open-market sale 10b5-1 plan | 600 | 1,162.16 | 697.3K |
| 2026-07-01 | Shek Bernard Chief Legal Officer & Secty | Open-market sale 10b5-1 plan | 600 | 2,088.00 | 1.3M |
| 2026-06-20 | Shek Bernard Chief Legal Officer & Secty | Shares withheld for tax | 117 | 2,184.75 | 255.6K |
| 2026-06-03 | Shek Bernard Chief Legal Officer & Secty | Open-market sale 10b5-1 plan | 600 | 1,736.00 | 1.0M |
| 2026-06-02 | Ilkbahar Alper EVP, Chief Technology Officer | Gift | 2.7K | 0.00 | 0 |
| 2026-06-01 | Ilkbahar Alper EVP, Chief Technology Officer | Open-market sale | 999 | 1,755.31 | 1.8M |
| 2026-06-01 | Ilkbahar Alper EVP, Chief Technology Officer | Open-market sale | 600 | 1,758.40 | 1.1M |
| 2026-06-01 | Ilkbahar Alper EVP, Chief Technology Officer | Open-market sale | 401 | 1,757.00 | 704.6K |
| 2026-05-25 | Goeckeler David Chairman and CEO | Shares withheld for tax | 1.6K | 1,478.69 | 2.3M |
| 2026-05-25 | Ilkbahar Alper EVP, Chief Technology Officer | Shares withheld for tax | 653 | 1,478.69 | 965.6K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| FMR LLC | 8.5B | 13.4M |
| BlackRock, Inc. | 6.6B | 10.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.1B | 9.5M |
| STATE STREET CORP | 3.5B | 5.6M |
| GEODE CAPITAL MANAGEMENT, LLC | 2.7B | 4.2M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.3B | 3.6M |
| MORGAN STANLEY | 1.8B | 2.8M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.8B | 2.8M |
| GOLDMAN SACHS GROUP INC | 1.3B | 2.0M |
| JANE STREET GROUP, LLC | 1.1B | 1.8M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 10-K | 2026-08-17 | 2026-07-03 | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-08-06 | — | on EDGAR ↗ |
| SCHEDULE 13G | 2026-08-05 | — | on EDGAR ↗ |
| 8-K | 2026-08-05 | 2026-08-05 | on EDGAR ↗ |
| 4 | 2026-08-04 | 2026-08-03 | on EDGAR ↗ |
| 4 | 2026-07-02 | 2026-07-01 | on EDGAR ↗ |
| 4 | 2026-06-22 | 2026-06-20 | on EDGAR ↗ |
| 4 | 2026-06-05 | 2026-06-03 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Sandisk Rode an Estimated 70% Jump in NAND Prices. TrendForce Sees 10% to 15% This Quarter. · 2026-08-24
- Micron, Sandisk, and SK Hynix: History Says This About the Memory Trio's Rally · 2026-08-23
- SanDisk, Micron, Western Digital Remain Cheap as Cyclical and AI Bubble Concerns Remain · 2026-08-23 · benzinga
- Micron vs. Sandisk: Which AI Memory Stock Should You Own? · 2026-08-23
- Is It Too Late to Buy Sandisk After Its 568% Run? · 2026-08-22
- Billionaire Stanley Druckenmiller Just Sold Some Sandisk Stock and Bought These 3 Unstoppable Artificial Intelligence (AI) Stocks · 2026-08-22
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