Updated Jul 16, 2026 · Last SEC filing 2026-07-02
Sandisk Corp (SNDK) has filed 17 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 1 Form 8-K material event filings were reported by SNDK in the last 90 days. 4 Form 144 notices of proposed sale were filed for SNDK stock. InsiderAlpha tracks every SNDK SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0002023554 |
|---|
| Form 4 filings (90d) | 17 |
|---|---|
| Form 8-K filings (90d) | 1 |
| Form 144 notices (90d) | 4 |
| Latest Form 4 filing | 2026-07-02 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Shek Bernard | Chief Legal Officer & Secty | S — Open-market sale | 600 | $2,088.00 | $1.25M | SEC | |
| Shek Bernard | Chief Legal Officer & Secty | F — Tax withholding / forfeiture | 117 | $2,184.75 | $256K | SEC | |
| Shek Bernard | Chief Legal Officer & Secty | S — Open-market sale | 600 | $1,736.00 | $1.04M | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | G — Bona-fide gift | 2.7K | $0.00 | — | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | S — Open-market sale | 999 | $1,755.31 | $1.75M | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | S — Open-market sale | 600 | $1,758.40 | $1.06M | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | S — Open-market sale | 401 | $1,757.00 | $705K | SEC | |
| Shek Bernard | Chief Legal Officer & Secty | F — Tax withholding / forfeiture | 211 | $1,478.69 | $312K | SEC | |
| Goeckeler David | Chairman and CEO | F — Tax withholding / forfeiture | 1.6K | $1,478.69 | $2.32M | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | F — Tax withholding / forfeiture | 653 | $1,478.69 | $966K | SEC | |
| Goeckeler David | Chairman and CEO | F — Tax withholding / forfeiture | 1.0K | $1,542.24 | $1.59M | SEC | |
| Visoso Luis Felipe | EVP and Chief Financial Office | F — Tax withholding / forfeiture | 1.6K | $1,542.24 | $2.45M | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | F — Tax withholding / forfeiture | 319 | $1,542.24 | $492K | SEC | |
| Shek Bernard | Chief Legal Officer & Secty | F — Tax withholding / forfeiture | 107 | $1,542.24 | $165K | SEC | |
| Ilkbahar Alper | EVP, Chief Technology Officer | F — Tax withholding / forfeiture | 162 | $1,392.56 | $226K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Sandisk Corp (SNDK). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Ilkbahar Alper | 8 | $7.25M |
| Shek Bernard | 7 | $3.22M |
| Goeckeler David | 3 | $5.72M |
| Pokorny Michael | 2 | $5.72M |
| Visoso Luis Felipe | 1 | $2.45M |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SNDK insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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