SNDK

Sandisk Corp

SEC CIK 2023554
$1,980.10 +238.7% · 90 days
90-day buys
$0
0 open-market
90-day sells
$8.91M
6 open-market
Net insider flow
−$8.91M
Net selling
Filings shown
34
Most recent
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At a glance

Over the last 90 days, insiders at SNDK have sold a net $8.91M of stock (0 open-market buys vs 6 sells).

Largest recent trade: Pokorny Michael sold $3.49M of SNDK, trimming their stake 10%.

Most active filer: Ilkbahar Alper, with 11 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for SNDK, newest first
View on SEC EDGAR ↗
SNDK
Sell Shek Bernard · Chief Legal Officer & Secty · Open-market sale · filed 1w ago ΔOwn −1.8%

Shek Bernard sold $1.04M of SNDK, trimming their stake 2%.

−$1.04M
600 sh @ $1,736
SNDK
Sell Ilkbahar Alper · EVP, Chief Technology Officer · Open-market sale · filed 1w ago ΔOwn −1.8%

Ilkbahar Alper sold $1.75M of SNDK, trimming their stake 2%.

−$1.75M
999 sh @ $1,755
SNDK
Sell Ilkbahar Alper · EVP, Chief Technology Officer · Open-market sale · filed 1w ago ΔOwn −0.7%

Ilkbahar Alper sold $704.6K of SNDK, trimming their stake 1%.

−$704.6K
401 sh @ $1,757
SNDK
Sell Ilkbahar Alper · EVP, Chief Technology Officer · Open-market sale · filed 1w ago ΔOwn −1.1%

Ilkbahar Alper sold $1.06M of SNDK, trimming their stake 1%.

−$1.06M
600 sh @ $1,758
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SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed 2w ago ΔOwn −0.6%
−$312K
211 sh @ $1,479
SNDK
Tax withholding Goeckeler David · Director, Chairman and CEO · Tax withholding · filed 2w ago ΔOwn −0.3%
−$2.32M
1,569 sh @ $1,479
SNDK
Tax withholding Ilkbahar Alper · EVP, Chief Technology Officer · Tax withholding · filed 2w ago ΔOwn −1.2%
−$965.6K
653 sh @ $1,479
SNDK
Tax withholding Visoso Luis Felipe · EVP and Chief Financial Office · Tax withholding · filed 3w ago ΔOwn −1.0%
−$2.45M
1,588 sh @ $1,542
SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed 3w ago ΔOwn −0.3%
−$165K
107 sh @ $1,542
SNDK
Tax withholding Goeckeler David · Director, Chairman and CEO · Tax withholding · filed 3w ago ΔOwn −0.2%
−$1.59M
1,032 sh @ $1,542
SNDK
Tax withholding Ilkbahar Alper · EVP, Chief Technology Officer · Tax withholding · filed 3w ago ΔOwn −0.6%
−$492K
319 sh @ $1,542
SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed 3w ago ΔOwn −0.3%
−$151.8K
109 sh @ $1,393
SNDK
Tax withholding Goeckeler David · Director, Chairman and CEO · Tax withholding · filed 3w ago ΔOwn −0.3%
−$1.81M
1,299 sh @ $1,393
SNDK
Tax withholding Ilkbahar Alper · EVP, Chief Technology Officer · Tax withholding · filed 3w ago ΔOwn −0.3%
−$225.6K
162 sh @ $1,393
SNDK
Sell Pokorny Michael · VP, Chief Accounting Officer · Open-market sale · filed May 14, 2026 ΔOwn −9.9%

Pokorny Michael sold $3.49M of SNDK, trimming their stake 10%.

−$3.49M
2,446 sh @ $1,426
SNDK
Tax withholding Pokorny Michael · VP, Chief Accounting Officer · Tax withholding · filed May 11, 2026 ΔOwn −5.4%
−$2.23M
1,429 sh @ $1,562
SNDK
Sell Sayiner Necip · Director · Open-market sale · filed May 11, 2026 ΔOwn −17%

Sayiner Necip sold $870.3K of SNDK, trimming their stake 17%.

−$870.3K
579 sh @ $1,503
SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed Apr 21, 2026 ΔOwn −0.1%
−$37.4K
41 sh @ $913
SNDK
Tax withholding Ilkbahar Alper · EVP, Chief Technology Officer · Tax withholding · filed Apr 21, 2026 ΔOwn −3.9%
−$2.06M
2,251 sh @ $913
SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed Mar 24, 2026 ΔOwn −0.4%
−$83K
117 sh @ $710
SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed Feb 27, 2026 ΔOwn −0.6%
−$133.4K
211 sh @ $632
SNDK
Tax withholding Goeckeler David · Director, Chairman & CEO · Tax withholding · filed Feb 27, 2026 ΔOwn −0.3%
−$992.2K
1,569 sh @ $632
SNDK
Tax withholding Ilkbahar Alper · EVP, Chief Technology Officer · Tax withholding · filed Feb 27, 2026 ΔOwn −1.0%
−$357.9K
566 sh @ $632
SNDK
Sell Suzuki Miyuki · Director · Open-market sale · filed Feb 26, 2026 ΔOwn −26%

Suzuki Miyuki sold $2.2M of SNDK, trimming their stake 26%.

−$2.2M
3,500 sh @ $628
SNDK
Tax withholding Visoso Luis Felipe · EVP and CFO · Tax withholding · filed Feb 24, 2026 ΔOwn −0.9%
−$1.04M
1,594 sh @ $650
SNDK
Tax withholding Shek Bernard · Chief Legal Officer & Secty · Tax withholding · filed Feb 24, 2026 ΔOwn −0.3%
−$69.5K
107 sh @ $650
SNDK
Tax withholding Goeckeler David · Director, Chairman & CEO · Tax withholding · filed Feb 24, 2026 ΔOwn −0.2%
−$670.8K
1,032 sh @ $650
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About SNDK insider activity

This page tracks every recent Form 4 filed for Sandisk Corp with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is SNDK insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for Sandisk Corp usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.