LYTIR

Company · SNDK

Sandisk Corporation

Name as listed on its exchange; filed with the SEC as Sandisk Corp.

Nasdaq's symbol directory lists SNDK on Nasdaq as “Sandisk Corporation - Common Stock When-Issued”.

In the 12 months to Nov 8, 2026: insiders sold on 10 occasions ($123.1M); 5 planned-sale notices; 4 filings by holders of 5% or more; 4 congressional trade disclosures; 4 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC · Appeared in No. 41, No. 22, No. 19, No. 18, No. 5, No. 4, No. 3, No. 2

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $123.1M in total.Jul: Insider sales $1.3MAug: Insider sales $697KSep: Insider sales $119.4MOct: Insider sales $1.0MNov: Insider sales $695KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $123.1M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. David Goeckeler, Chairman & CEO sold on 2 days all under a 10b5-1 plan latest Sep 17, 2026 sold $105.0M
  2. Bernard Shek, Chief Legal Officer and Secty sold on 6 days all under a 10b5-1 plan latest Nov 2, 2026 sold $8.7M
  3. Alper Ilkbahar, EVP & Chief Technology Officer sold on 1 day all under a 10b5-1 plan latest Sep 3, 2026 sold $7.9M
  4. Luis F. Visoso, EVP & CFO sold on 1 day all under a 10b5-1 plan latest Sep 15, 2026 sold $1.6M
Every trade (10)
  1. SELLBernard Shek, Chief Legal Officer and Secty sold Nov 2, 2026 600 shares 10b5-1 plan (scheduled) filing $695K
  2. SELLBernard Shek, Chief Legal Officer and Secty sold Oct 1, 2026 600 shares 10b5-1 plan (scheduled) filing $1.0M
  3. SELLDavid Goeckeler, Chairman & CEO sold Sep 17, 2026 33,841 shares 15 legs combined 10b5-1 plan (scheduled) filing $53.3M
  4. SELLLuis F. Visoso, EVP & CFO sold Sep 15, 2026 1,000 shares 10b5-1 plan (scheduled) filing $1.6M
  5. SELLDavid Goeckeler, Chairman & CEO sold Sep 14, 2026 33,838 shares 13 legs combined 10b5-1 plan (scheduled) filing $51.7M
  6. SELLBernard Shek, Chief Legal Officer & Secty sold Sep 8, 2026 2,308 shares 10b5-1 plan (scheduled) filing $4.1M
  7. SELLAlper Ilkbahar, EVP & Chief Technology Officer sold Sep 3, 2026 5,112 shares 34 legs combined 10b5-1 plan (scheduled) filing $7.9M
  8. SELLBernard Shek, Chief Legal Officer & Secty sold Sep 1, 2026 600 shares 10b5-1 plan (scheduled) filing $915K
  9. SELLBernard Shek, Chief Legal Officer & Secty sold Aug 3, 2026 600 shares 10b5-1 plan (scheduled) filing $697K
  10. SELLBernard Shek, Chief Legal Officer & Secty sold Jul 1, 2026 600 shares 10b5-1 plan (scheduled) filing $1.3M

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. DAVID GOECKELER filed Sep 17, 2026 Director 33,841 shares planned sale date 09/17/2026 filing $51.4M
  2. LUIS VISOSO filed Sep 15, 2026 Officer 3,000 shares planned sale date 09/15/2026 filing $4.7M
  3. DAVID GOECKELER filed Sep 14, 2026 Director 33,838 shares planned sale date 09/14/2026 filing $55.3M
  4. BERNARD SHEK filed Sep 8, 2026 Officer 4,108 shares planned sale date 09/08/2026 filing $7.1M
  5. ALPER ILKBAHAR filed Sep 3, 2026 Officer 6,270 shares planned sale date 09/03/2026 filing $9.7M

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. JANE STREET GROUP, LLC filed Nov 6, 2026 Schedule 13G/A passive 5,478,633 shares filing 3.7%
  2. BlackRock, Inc. filed Oct 27, 2026 Schedule 13G/A passive 11,085,551 shares filing 7.7%
  3. FMR LLC filed Aug 6, 2026 Schedule 13G/A passive 7,861,064 shares filing 5.3%
  4. JANE STREET GROUP, LLC filed Aug 5, 2026 Schedule 13G passive 7,409,437 shares filing 5%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Josh Gottheimer (D-NJ05): Purchase May 7, 2026 reported Jun 3, 2026 one of 21 trades the member reported that day House Stocks (including ADRs) owner: joint $1,001 - $15,000
  2. Alan Armstrong (R-OK): Purchase Mar 27, 2026 reported Jul 21, 2026 one of 703 trades the member reported that day Senate Stock $1,001 - $15,000
  3. Gilbert Cisneros (D-CA31): Purchase Mar 13, 2026 reported Apr 7, 2026 one of 141 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  4. Gilbert Cisneros (D-CA31): Purchase Jan 9, 2026 reported Feb 13, 2026 one of 151 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition; Other events filing Oct 29, 2026
  2. Departure or appointment of directors or officers filing Sep 16, 2026
  3. Entry into a material definitive agreement filing Sep 11, 2026
  4. Results of operations and financial condition; Other events filing Aug 5, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.