๐Ÿ•ต๏ธ Sandisk Corp ($SNDK)

SEC insider & ownership activity, last 12 months ยท CIK 2023554 ยท every row links its SEC filing

Over the last 12 months insiders sold $12.6M with no open-market buying against it. Ilkbahar Alper sold $3.5M in discretionary trades (Jun). Blackrock, Inc. trimmed 10.9% โ†’ 6.0%. No red-flag 8-Ks in the window.

๐Ÿšจ 3 signals active โ€” planned-vs-executed verdicts, pre-event flags, and cluster context live in the API and the alerts bot.
Aug 2025: net +$0 Sep 2025: net +$0 Oct 2025: net +$0 Nov 2025: net +$0 Dec 2025: net -$248K Jan 2026: net +$0 Mar 2026: net +$0 Mar 2026: net +$0 Apr 2026: net +$0 May 2026: net -$4.4M Jun 2026: net -$4.6M Jul 2026: net -$1.3M
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

0 buyers, $0 (0 lots) ยท 5 sellers, $12.6M (9 lots)

InsiderBuysBoughtSellsSoldLast
Ilkbahar Alper0โ€“ 3$3.5MJun 1, 2026
Michael Pokorny0โ€“ 1$3.5MMay 12, 2026
Shek Bernard0โ€“ 2$2.3MJul 1, 2026
Suzuki Miyuki0โ€“ 1$2.2MFeb 25, 2026
Sayiner Necip0โ€“ 2$1.1MMay 8, 2026

5%+ holders

HolderStakeClassScheduleEvent
FMR LLC 8.7% 13GApr 7, 2026 filing โ†—
Abigail P. Johnson 8.7% 13GApr 7, 2026 filing โ†—
Vanguard Capital Management 7.2% 13GApr 30, 2026 filing โ†—
Blackrock, Inc. 6.0% 13GJan 21, 2026 filing โ†—

Planned insider sales (Form 144)

SellerPlannedApprox. sale date
Bernard Shek$4.1MJun 3, 2026 filing โ†—
Alper Ilkbahar$3.5MJun 1, 2026 filing โ†—
Michael Pokorny$3.5MMay 12, 2026 filing โ†—
Necip Sayiner$870KMay 8, 2026 filing โ†—
Miyuki Suzuki$2.2MFeb 25, 2026 filing โ†—
Massengill Living Trust$1.3MFeb 2, 2026 filing โ†—
Kimberly Alexy$690KJan 22, 2026 filing โ†—
Massengill Living Trust$985KJan 21, 2026 filing โ†—
Kimberly Alexy$740KJan 16, 2026 filing โ†—
Massengill Living Trust$421KJan 15, 2026 filing โ†—
Massengill Living$694KJan 7, 2026 filing โ†—
Kimberly Alexy$1.0MJan 6, 2026 filing โ†—
Massengill Living Trust$953KJan 6, 2026 filing โ†—
Necip Sayiner$248KDec 3, 2025 filing โ†—
Massengill Living Trust$508KNov 26, 2025 filing โ†—
Massengill Living Trust$336KNov 25, 2025 filing โ†—
Massengill Living Trust$225KNov 24, 2025 filing โ†—
Kimberly Alexy$486KNov 21, 2025 filing โ†—
Kimberly Alexy$653KNov 20, 2025 filing โ†—

Material events (8-K)

ItemEvent date
Other events (8.01)May 14, 2026 filing โ†—
Financial Statements and Exhibits (9.01)May 14, 2026 filing โ†—
Earnings (2.02)Apr 30, 2026 filing โ†—
Other events (8.01)Apr 30, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Apr 30, 2026 filing โ†—
Material agreement (1.01)Mar 25, 2026 filing โ†—
Other events (8.01)Mar 25, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Mar 25, 2026 filing โ†—
Earnings (2.02)Jan 29, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Jan 29, 2026 filing โ†—
Officer/director changes (5.02)Dec 30, 2025 filing โ†—
Shareholder vote (5.07)Nov 18, 2025 filing โ†—
Earnings (2.02)Nov 6, 2025 filing โ†—
Financial Statements and Exhibits (9.01)Nov 6, 2025 filing โ†—
Earnings (2.02)Aug 14, 2025 filing โ†—
Financial Statements and Exhibits (9.01)Aug 14, 2025 filing โ†—