🕵️ Sandisk Corp ($SNDK)
SEC insider & ownership activity, last 12 months · CIK 2023554 · every row links its SEC filing
Over the last 12 months insiders sold $79.5M with no open-market buying against it. Goeckeler David sold $51.7M through a 10b5-1 trading plan in 13 lots (Sep). 1 planned sale is pending, the largest $55.3M (David Goeckeler). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 7 sellers, $79.5M (60 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Goeckeler David | 0 | – | 13 | $51.7M | Sep 14, 2026 |
| Ilkbahar Alper | 0 | – | 37 | $11.4M | Sep 3, 2026 |
| Shek Bernard | 0 | – | 5 | $8.0M | Sep 8, 2026 |
| Michael Pokorny | 0 | – | 1 | $3.5M | May 12, 2026 |
| Suzuki Miyuki | 0 | – | 1 | $2.2M | Feb 25, 2026 |
| Visoso Luis Felipe | 0 | – | 1 | $1.6M | Sep 15, 2026 |
| Sayiner Necip | 0 | – | 2 | $1.1M | May 8, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.2% | 13G | Apr 30, 2026 | filing ↗ | |
| BlackRock, Inc. | 6.0% | 13G | Jan 21, 2026 | filing ↗ | |
| FMR LLC | 5.3% | 13G | Aug 6, 2026 | filing ↗ | |
| Abigail P. Johnson | 5.3% | 13G | Aug 6, 2026 | filing ↗ | |
| JANE Street Group, LLC | 5.0% | 13G | Aug 5, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| David Goeckeler | $51.4M | Sep 17, 2026 | filing ↗ |
| Luis Visoso | $4.7M | Sep 15, 2026 | filing ↗ |
| David Goeckeler | $55.3M | Sep 14, 2026 | filing ↗ |
| Alper Ilkbahar | $9.7M | Sep 3, 2026 | filing ↗ |
| Bernard Shek | $4.1M | Jun 3, 2026 | filing ↗ |
| Alper Ilkbahar | $3.5M | Jun 1, 2026 | filing ↗ |
| Michael Pokorny | $3.5M | May 12, 2026 | filing ↗ |
| Necip Sayiner | $870K | May 8, 2026 | filing ↗ |
| Miyuki Suzuki | $2.2M | Feb 25, 2026 | filing ↗ |
| Massengill Living Trust | $1.3M | Feb 2, 2026 | filing ↗ |
| Kimberly Alexy | $690K | Jan 22, 2026 | filing ↗ |
| Massengill Living Trust | $985K | Jan 21, 2026 | filing ↗ |
| Kimberly Alexy | $740K | Jan 16, 2026 | filing ↗ |
| Massengill Living Trust | $421K | Jan 15, 2026 | filing ↗ |
| Massengill Living | $694K | Jan 7, 2026 | filing ↗ |
| Kimberly Alexy | $1.0M | Jan 6, 2026 | filing ↗ |
| Massengill Living Trust | $953K | Jan 6, 2026 | filing ↗ |
| Necip Sayiner | $248K | Dec 3, 2025 | filing ↗ |
| Massengill Living Trust | $508K | Nov 26, 2025 | filing ↗ |
| Massengill Living Trust | $336K | Nov 25, 2025 | filing ↗ |
| Massengill Living Trust | $225K | Nov 24, 2025 | filing ↗ |
| Kimberly Alexy | $486K | Nov 21, 2025 | filing ↗ |
| Kimberly Alexy | $653K | Nov 20, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Sep 10, 2026 | filing ↗ |
| Material agreement (1.01) | Sep 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 9, 2026 | filing ↗ |
| Earnings (2.02) | Aug 5, 2026 | filing ↗ |
| Other events (8.01) | Aug 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 5, 2026 | filing ↗ |
| Other events (8.01) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Other events (8.01) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 25, 2026 | filing ↗ |
| Other events (8.01) | Mar 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 25, 2026 | filing ↗ |
| Earnings (2.02) | Jan 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 30, 2025 | filing ↗ |
| Shareholder vote (5.07) | Nov 18, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |