Sandisk (SNDK) CTO Ilkbahar Alper Sells 4,712 Shares

What Happened
Ilkbahar Alper, EVP and Chief Technology Officer of Sandisk Corp (SNDK), sold a total of 4,712 shares in multiple open-market transactions on September 3, 2026, generating aggregate proceeds of approximately $7,259,190. Individual lots ranged from 40 to 2,594 shares at prices between about $1,513.23 and $1,558.90 per share. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 4, 2026 — i.e., pre‑arranged sales rather than ad‑hoc trades.

Key Details

• Transaction date: 2026-09-03 (Form 4 filed 2026-09-08 — filing appears late; transactionTimeliness = 'L').
• Total sold: 4,712 shares for total proceeds ≈ $7,259,190.
• Price range in these reported trades: approximately $1,513.23 to $1,558.90 per share. Notable large block: 2,594 shares at a weighted average price of $1,543.76 (≈ $4.00M).
• Footnotes: Sales were made under a 10b5-1 plan (adopted June 4, 2026). Several entries report weighted-average sale prices across multiple executions; the filer states it will provide per-price breakdowns on request.
• Shares owned after transaction: Not specified in the provided excerpt of the filing.

Context

• Sales under a 10b5-1 plan are pre-planned and common for executives managing diversification or liquidity; they do not necessarily signal a change in view on the company.
• This filing reports sales (code S). For retail investors, purchases are often considered stronger signals than routine plan-based sales.
• The late filing may be a technical compliance issue; Form 4s are generally due within two business days of the transaction, so the five-day gap is notable for timeliness monitoring.