Sandisk (SNDK) — insider trading
Information Technology · NASDAQ
Sandisk (SNDK) has 115 reported SEC Form 4 insider transactions in our data, including 72 open-market sales among the most recent 100 (latest 2026-10-01).
Recent Form 4 transactions
Showing the 100 most recent of 115 recorded transactions. See all on SEC EDGAR →
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-01 | Shek Bernard | Officer (Chief Legal Officer and Secty) | Open-market sale | 600 | $1,734.94 | $1.04M | Form 4 |
| 2026-09-20 | Shek Bernard | Officer (Chief Legal Officer and Secty) | Shares withheld for taxes / exercise cost | 118 | $1,791.82 | $211.4K | Form 4 |
| 2026-09-17 | Visoso Luis Felipe | Officer (EVP & CFO) | Grant / award / vesting | 1,635 | — | $0 | Form 4 |
| 2026-09-17 | Shek Bernard | Officer (Chief Legal Officer and Secty) | Grant / award / vesting | 1,001 | — | $0 | Form 4 |
| 2026-09-17 | Pokorny Michael | Officer (VP, Chief Accounting Officer) | Grant / award / vesting | 458 | — | $0 | Form 4 |
| 2026-09-17 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Grant / award / vesting | 1,619 | — | $0 | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 165 | $1,587.00 | $261.9K | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,520 | $1,585.85 | $2.41M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,080 | $1,583.80 | $1.71M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,480 | $1,580.25 | $2.34M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 640 | $1,579.41 | $1.01M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 2,876 | $1,578.34 | $4.54M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 4,139 | $1,576.82 | $6.53M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 2,778 | $1,575.58 | $4.38M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 2,588 | $1,574.57 | $4.07M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 306 | $1,573.15 | $481.4K | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,157 | $1,572.60 | $1.82M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 4,558 | $1,571.21 | $7.16M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 910 | $1,570.04 | $1.43M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 9,604 | $1,569.00 | $15.07M | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 40 | $1,567.26 | $62.7K | Form 4 |
| 2026-09-17 | Goeckeler David | Director, Officer (Chairman & CEO) | Grant / award / vesting | 3,296 | — | $0 | Form 4 |
| 2026-09-15 | Visoso Luis Felipe | Officer (EVP & CFO) | Open-market sale | 1,000 | $1,568.83 | $1.57M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 360 | $1,541.88 | $555.1K | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 864 | $1,540.78 | $1.33M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,480 | $1,539.19 | $2.28M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 3,200 | $1,537.68 | $4.92M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,695 | $1,535.96 | $2.60M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 700 | $1,535.12 | $1.07M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 1,200 | $1,532.17 | $1.84M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 359 | $1,529.36 | $549.0K | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 4,080 | $1,528.45 | $6.24M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 2,280 | $1,526.45 | $3.48M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 3,075 | $1,524.27 | $4.69M | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 181 | $1,522.87 | $275.6K | Form 4 |
| 2026-09-14 | Goeckeler David | Director, Officer (Chairman & CEO) | Open-market sale | 14,364 | $1,522.59 | $21.87M | Form 4 |
| 2026-09-08 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Open-market sale | 2,308 | $1,767.33 | $4.08M | Form 4 |
| 2026-09-03 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Shares withheld for taxes / exercise cost | 2,271 | $1,554.99 | $3.53M | Form 4 |
| 2026-09-03 | Visoso Luis Felipe | Officer (EVP & CFO) | Shares withheld for taxes / exercise cost | 5,838 | $1,554.99 | $9.08M | Form 4 |
| 2026-09-03 | Pokorny Michael | Officer (VP, Chief Accounting Officer) | Shares withheld for taxes / exercise cost | 1,283 | $1,554.99 | $2.00M | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Shares withheld for taxes / exercise cost | 3,244 | $1,554.99 | $5.04M | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,571.04 | $62.8K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,564.40 | $62.6K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 200 | $1,563.68 | $312.7K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 120 | $1,561.69 | $187.4K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,558.90 | $62.4K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,557.79 | $124.6K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 78 | $1,555.57 | $121.3K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,554.02 | $62.2K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 120 | $1,553.35 | $186.4K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,550.48 | $62.0K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,548.85 | $62.0K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,547.46 | $123.8K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,546.02 | $123.7K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 2,594 | $1,543.76 | $4.00M | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,542.68 | $123.4K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,541.01 | $123.3K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,539.61 | $123.2K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,538.41 | $123.1K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 160 | $1,537.49 | $246.0K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,535.66 | $122.9K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,534.48 | $122.8K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 120 | $1,533.69 | $184.0K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,532.02 | $61.3K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,530.52 | $122.4K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,529.71 | $122.4K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,527.58 | $61.1K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,526.81 | $122.1K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,523.61 | $121.9K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,522.10 | $60.9K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,520.93 | $121.7K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 68 | $1,519.23 | $103.3K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 52 | $1,517.68 | $78.9K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 80 | $1,515.05 | $121.2K | Form 4 |
| 2026-09-03 | Ilkbahar Alper | Officer (EVP & Chief Technology Officer) | Open-market sale | 40 | $1,513.23 | $60.5K | Form 4 |
| 2026-09-03 | Goeckeler David | Director, Officer (Chairman & CEO) | Shares withheld for taxes / exercise cost | 10,540 | $1,554.99 | $16.39M | Form 4 |
| 2026-09-01 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Open-market sale | 600 | $1,525.60 | $915.4K | Form 4 |
| 2026-08-25 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Shares withheld for taxes / exercise cost | 654 | $1,480.77 | $968.4K | Form 4 |
| 2026-08-25 | Goeckeler David | Director, Officer (Chairman and CEO) | Shares withheld for taxes / exercise cost | 49,782 | $1,480.77 | $73.72M | Form 4 |
| 2026-08-25 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Shares withheld for taxes / exercise cost | 212 | $1,480.77 | $313.9K | Form 4 |
| 2026-08-21 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Shares withheld for taxes / exercise cost | 108 | $1,596.08 | $172.4K | Form 4 |
| 2026-08-21 | Goeckeler David | Director, Officer (Chairman and CEO) | Shares withheld for taxes / exercise cost | 1,033 | $1,596.08 | $1.65M | Form 4 |
| 2026-08-21 | Visoso Luis Felipe | Officer (EVP & CFO) | Shares withheld for taxes / exercise cost | 1,589 | $1,596.08 | $2.54M | Form 4 |
| 2026-08-21 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Shares withheld for taxes / exercise cost | 320 | $1,596.08 | $510.7K | Form 4 |
| 2026-08-20 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Shares withheld for taxes / exercise cost | 111 | $1,600.62 | $177.7K | Form 4 |
| 2026-08-20 | Goeckeler David | Director, Officer (Chairman and CEO) | Shares withheld for taxes / exercise cost | 1,300 | $1,600.62 | $2.08M | Form 4 |
| 2026-08-20 | Visoso Luis Felipe | Officer (EVP & CFO) | Shares withheld for taxes / exercise cost | 25,655 | $1,600.62 | $41.06M | Form 4 |
| 2026-08-20 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Option exercise / conversion (derivative) | 276 | — | $0 | Form 4 |
| 2026-08-20 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Shares withheld for taxes / exercise cost | 163 | $1,600.62 | $260.9K | Form 4 |
| 2026-08-20 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Shares withheld for taxes / exercise cost | 276 | $1,600.62 | $441.8K | Form 4 |
| 2026-08-20 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Option exercise / conversion | 276 | — | $0 | Form 4 |
| 2026-08-03 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Open-market sale | 600 | $1,162.16 | $697.3K | Form 4 |
| 2026-07-01 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Open-market sale | 600 | $2,088.00 | $1.25M | Form 4 |
| 2026-06-20 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Shares withheld for taxes / exercise cost | 117 | $2,184.75 | $255.6K | Form 4 |
| 2026-06-03 | Shek Bernard | Officer (Chief Legal Officer & Secty) | Open-market sale | 600 | $1,736.00 | $1.04M | Form 4 |
| 2026-06-02 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Bona fide gift | 2,694 | — | $0 | Form 4 |
| 2026-06-01 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Open-market sale | 600 | $1,758.40 | $1.06M | Form 4 |
| 2026-06-01 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Open-market sale | 401 | $1,757.00 | $704.6K | Form 4 |
| 2026-06-01 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Open-market sale | 999 | $1,755.31 | $1.75M | Form 4 |
| 2026-05-25 | Ilkbahar Alper | Officer (EVP, Chief Technology Officer) | Shares withheld for taxes / exercise cost | 653 | $1,478.69 | $965.6K | Form 4 |
Ask the chat about SNDK's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: Sandisk (SNDK).
Last updated 2026-10-01 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.