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
Trade date
Aug 21, 2026
Filing date
Aug 24, 2026
View on SEC Insider profile
Estimated value-$510kShares × reported price
Shares traded320$1,596.08 per share
Holdings after49.5kDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Calculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

SNDK price since this filing

Daily closing prices, with the filing date and available return windows
SNDK · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +7.1%1w ago +9.9%1d ago +7.2%
Returns since7d +4.9%30d +21.7%90d180d1y

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
$1,596.08 per share
Estimated value
-$510k
Computed from shares × price
Holdings after
49,500 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
Filing-only score

-16 points

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.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • tax_withholding-22 points

    transaction_code = F

    Tax withholding on vesting shares is mechanical.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

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
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