Transaction · 0001242648-26-000029
SNDKSandisk Corp
Ilkbahar Alper
Ilkbahar Alper, EVP, CTO, reported a transaction classified as withholding at Sandisk Corp involving 3244.000000 shares for an estimated $5044387.56. Reported holdings after the transaction were 40490.000000 shares. The stored filing text includes a detected 10b5-1 reference.
withholdingSEC transaction code FEVP, CTO
- Trade date
- Sep 03, 2026
- Filing date
- Sep 09, 2026
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.
Filing warnings
Notes recorded with this filingdelayed filingThe filing was reported 6 calendar days after the transaction date.
SNDK price since this filing
Daily closing prices, with the filing date and available return windowsSNDK · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -19.1%1w ago -15.8%1d ago -11.9%
Returns since7d -13.8%30d -8.8%90d180d1y
Transaction facts
Stored Form 4 columns with their raw values
- Type
- withholding Code F
- Identifier
- 0001242648-26-000029 Common Stock
- Transaction date
- Sep 03, 2026 Filed Sep 09, 2026, 12:50 AM · 6d delay
- Shares
- 3,244 sh $1,554.99 per share
- Estimated value
- -$5.04M Computed from shares × price
- Holdings after
- 40,490 sh Direct
Filing signal explanations
Badges describe filing facts only — not predictions.
Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Delayed Filing Direct Ownership 10b5-1 Detected
Filing-only score
-32 points
Compact filing score computed from stored Form 4 facts. Version v1.
Low filing signal
This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.
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. - tenb5_1_detected-10 points
is_10b5_1 = true
Stored filing content includes detected 10b5-1 language. - delayed_filing-6 points
reporting_delay_days = 6
Filing delay exceeds the configured threshold.
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
- F1
This Form 4 reports additional transactions effected on September 3, 2026 that were reported in part on a separate Form 4 filed on the same date, September 8, 2026.
- F2
The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 4, 2026.
- F3
Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1561.31 to a high of $1562.01. The Reporting Person undertakes to…
- F4
Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1563.22 to a high of $1564.20. The Reporting Person undertakes to…
- F5
Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1571.03 to a high of $1571.25. The Reporting Person undertakes to…
- F6
Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).
Related transactions
Same SEC filing0 other transactions
Recent company activity
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