Sandisk Corp CTO Alper Ilkbahar Disposes Shares for Tax Withholding and Under 10b5-1 Plan

Overview & Context

On September 3, 2026, Alper Ilkbahar, Executive Vice President and Chief Technology Officer of Sandisk Corp ($SNDK), executed multiple non-derivative transactions resulting in the aggregate disposition of 3,644 shares of Common Stock with a combined value of approximately $5.67 million.

Transaction Breakdown

1. Rule 10b5-1 Plan Sales:

   • 120 shares sold at a weighted average price of $1,561.69
   • 200 shares sold at a weighted average price of $1,563.684
   • 40 shares sold at $1564.40
   • 40 shares sold at a weighted average price of $1,571.041
   • Subtotal: 400 shares for gross proceeds of $625,557.24 pursuant to a Rule 10b5-1 plan established on June 4, 2026.

2. Tax Withholding (Code F):

   • 3,244 shares withheld at $1,554.99 per share ($5,044,387.56) to satisfy tax withholding obligations triggered by equity vesting under Rule 16b-3(e).

Holdings & Market Impact

• Post-Transaction Holdings: 40,490 directly held shares.
• Significance Assessment: Low. The vast majority (~89%) of the disposed shares were automatically withheld to cover tax liabilities upon equity award vesting. The remaining 400 shares were executed under a pre-established Rule 10b5-1 trading arrangement.