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Sandisk Corp. planned insider sales

In the last twelve months insiders at Sandisk Corp. filed 24 Form 144 notices of planned sales, 119,414 shares worth $151.7 million at the time of filing, from 10 sellers. The latest, filed 17 September 2026: David Goeckeler (director, officer), 33,841 shares worth $51.4 million, planned for around 17 September 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
17 September 2026David GoeckelerDirector, Officer33,841$51.4 million17 September 202633,841 shares from 17 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance Stock Units; Restricted Stock UnitsForm 144
15 September 2026Luis VisosoOfficer3,000$4.7 million15 September 20261,000 shares from 15 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
14 September 2026David GoeckelerDirector, Officer33,838$55.3 million14 September 202633,838 shares from 14 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance Stock Units; Restricted Stock UnitsForm 144
8 September 2026Bernard ShekOfficer4,108$7.1 million8 September 20263,508 shares from 8 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock Units; WDC-SpinoffForm 144
3 September 2026Alper IlkbaharOfficer6,270$9.7 million3 September 20265,112 shares from 3 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
3 June 2026Bernard ShekOfficer2,400$4.1 million3 June 20262,400 shares from 3 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSpin-offForm 144
1 June 2026Alper IlkbaharOfficer2,000$3.5 million1 June 20262,000 shares from 1 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
12 May 2026Michael PokornyOfficer2,446$3.5 million12 May 20262,446 shares from 12 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
8 May 2026Necip SayinerDirector579$870,3018 May 2026579 shares from 8 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
25 February 2026Miyuki SuzukiDirector3,500$2.2 million25 February 20263,500 shares from 25 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
2 February 2026Massengill Living TrustFormer Affiliate2,000$1.3 million2 February 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
22 January 2026Kimberly AlexyFormer Director1,367$690,33522 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
21 January 2026Massengill Living TrustFormer Affiliate2,000$984,57121 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
16 January 2026Kimberly AlexyFormer Director1,737$739,96216 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 January 2026Massengill Living TrustFormer Affiliate1,000$421,45915 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
7 January 2026Massengill LivingFormer Affiliate2,000$693,8397 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
6 January 2026Massengill Living TrustFormer Affiliate2,816$953,0096 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
6 January 2026Kimberly AlexyDirector3,000$1.0 million6 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
3 December 2025Necip SayinerDirector1,271$248,0273 December 20251,271 shares from 3 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
26 November 2025Massengill Living TrustFormer Affiliate2,340$508,39526 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
25 November 2025Massengill Living TrustFormer Director1,500$335,62525 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
24 November 2025Massengill Living TrustFormer Affiliate1,000$225,22024 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
21 November 2025Kimberly AlexyDirector2,401$485,83021 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
20 November 2025Kimberly AlexyDirector3,000$652,66420 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?