SanDisk SNDK
$835.06 +$28.63 (+3.55%)
Market closed · Nov 6, 9:40 pm ET · Last extended-hours $841.46 +0.77%
Open$898.27
Prev close$806.43
Day range$816.42 – $912.09
Volume17.76M
Market cap$118.82B
P/E (TTM)6.6
Dividend yield–
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership85.2%+8.88 pts vs. prior quarter
Institutions holding2,107+28 vs. prior quarter
Insider trades (recent)6 buys / 44 sellsNet selling
Short interest3.24% of floatDays to cover 1.0 · as of 15 Oct 2026
Short-sale volume share5.9%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$231.47M (7 inflow days, 13 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 29.8% of shares outstanding.
Largest holders
By investor type
Reported short interest has fallen from 4.61% to 3.24% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| BlackRock | Mutual Fund | 2026/Q3 | +790,251 | 7.6% |
| Amova Asset Management | Mutual Fund | 2026/Q3 | +284,359 | 0.2% |
| Sumitomo Mitsui Trust Asset Management | Mutual Fund | 2026/Q3 | +284,359 | 0.2% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +6,251,642 | 5.1% |
| Invesco Capital Management LLC | Mutual Fund | 2026/Q3 | +4,213,897 | 3.4% |
| J.P. Morgan Asset Management, Inc. | Mutual Fund | 2026/Q3 | +2,130,420 | 1.8% |
| Clear Street LLC | Private Company | 2026/Q3 | +1,758,809 | 2.0% |
| Situational Awareness LP | Hedge Fund | 2026/Q3 | +1,355,225 | 1.7% |
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +621,849 | 0.4% |
| Exchange Traded Concepts, LLC | Mutual Fund | 2026/Q3 | +606,137 | 0.4% |
| Wells Fargo & Company | Public Company | 2026/Q3 | +528,570 | 0.6% |
| Jennison Associates LLC | Mutual Fund | 2026/Q3 | +471,525 | 0.3% |
| Wellington Management Group | Mutual Fund | 2026/Q3 | +443,714 | 0.7% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +443,472 | 1.1% |
| Teachers Insurance and Annuity Association-College Retirement Equities Fund | Mutual Fund | 2026/Q3 | +377,512 | 0.5% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 19 Oct 2026 | Bernard Shek | Chief Legal Officer | Sale to Issuer | -322 | $1,365.38 | 25,266 |
| 30 Sep 2026 | Bernard Shek | Chief Legal Officer | Automatic Disposition | -600 | $1,734.94 | 25,588 |
| 19 Sep 2026 | Bernard Shek | Chief Legal Officer | Sale to Issuer | -118 | $1,791.82 | 26,188 |
| 16 Sep 2026 | David V. Goeckeler | Chairperson & CEO | Other Acquisition | +3,296 | – | 382,865 |
| 16 Sep 2026 | David V. Goeckeler | Chairperson & CEO | Automatic Disposition | -33,841 | $1,587.00 | 382,865 |
| 16 Sep 2026 | Luis Visoso | Chief Financial Officer | Other Acquisition | +1,635 | – | 132,611 |
| 16 Sep 2026 | Michael Pokorny | Vice President | Other Acquisition | +458 | – | 21,550 |
| 16 Sep 2026 | Bernard Shek | Chief Legal Officer | Other Acquisition | +1,001 | – | 26,188 |
| 16 Sep 2026 | Alper Ilkbahar | Executive Vice President | Other Acquisition | +1,619 | – | 42,109 |
| 14 Sep 2026 | Luis Visoso | Chief Financial Officer | Automatic Disposition | -1,000 | $1,568.83 | 130,976 |
| 13 Sep 2026 | David V. Goeckeler | Chairperson & CEO | Automatic Disposition | -33,838 | $1,541.88 | 413,410 |
| 7 Sep 2026 | Bernard Shek | Chief Legal Officer | Automatic Disposition | -2,308 | $1,767.33 | 25,305 |
| 2 Sep 2026 | David V. Goeckeler | Chairperson & CEO | Sale to Issuer | -10,540 | $1,554.99 | 447,248 |
| 2 Sep 2026 | Luis Visoso | Chief Financial Officer | Sale to Issuer | -5,838 | $1,554.99 | 131,976 |
| 2 Sep 2026 | Michael Pokorny | Vice President | Sale to Issuer | -1,283 | $1,554.99 | 21,092 |
| 2 Sep 2026 | Bernard Shek | Chief Legal Officer | Sale to Issuer | -2,271 | $1,554.99 | 25,305 |
| 2 Sep 2026 | Alper Ilkbahar | Executive Vice President | Sale to Issuer | -3,244 | $1,554.99 | 40,490 |
| 2 Sep 2026 | Alper Ilkbahar | Executive Vice President | Automatic Disposition | -4,712 | $1,558.90 | 44,134 |
| 2 Sep 2026 | Alper Ilkbahar | Executive Vice President | Automatic Disposition | -400 | $1,571.04 | 40,490 |
| 31 Aug 2026 | Bernard Shek | Chief Legal Officer | Automatic Disposition | -600 | $1,525.60 | 29,884 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 4,704,783 | 3.2% | 1.0 |
| 30 Sep 2026 | 4,819,278 | 3.3% | 1.0 |
| 15 Sep 2026 | 5,618,213 | 3.8% | 1.0 |
| 31 Aug 2026 | 5,996,105 | 4.1% | 1.0 |
| 14 Aug 2026 | 7,676,558 | 5.3% | 1.0 |
| 31 Jul 2026 | 6,823,953 | 4.6% | 1.0 |
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