Transaction · 0001363249-26-000066

Ilkbahar Alper

Ilkbahar Alper, EVP, CTO, reported a transaction classified as withholding at Sandisk Corp involving 320.000000 shares for an estimated $510745.60. Reported holdings after the transaction were 49500.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FEVP, CTO
SNDKSandisk Corp
Filing timeAug 24
Trade dateAug 21, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$1,493.12
Pre-filing
1mo ago +7.1%1w ago +9.9%1d ago +7.2%
Returns since
7d +1.0%30d +1.0%90d +1.0%180d +1.0%1y +1.0%

SNDK price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
SNDK since 2026-08-24Filed 10 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001363249-26-000066
Common Stock
Transaction date
Aug 21, 2026
Filed Aug 24, 2026, 09:50 PM · 3d delay
Shares
320 sh
$159k per share
Estimated value
-$51.0M
Computed from shares × price
Holdings after
49.5k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-16score
Filing-only score

-16

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

EVP, Chief Technology Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The reported transaction reflects the conversion of performance stock units to shares solely for the purpose of satisfying FICA tax withholding obligations as a result of the Reporting Person's retire…

  2. F2

    Represents shares withheld to satisfy the reporting person's tax withholding obligation in connection with the transaction described in Footnote (1) and is exempt pursuant to Rule 16b-3(e).

  3. F3

    Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).

Original filing · 0001363249-26-000066
Related transactions

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Same reporting owner
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