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Sandisk Corp (SNDK) S&P 500 XNAS COMPUTER STORAGE DEVICES Net insider selling (90d)
Latest SNDK Insider Trades
About Sandisk Corp (SNDK) Sandisk is one of the five largest suppliers of NAND flash memory semiconductors globally. Sandisk is vertically integrated, producing substantially all of its flash chips at manufacturing sites across Japan via a joint-venture framework with Kioxia. Sandisk then repackages most of its chips into SSDs for consumer electronics, external storage, or cloud storage. Sandisk was formerly a piece of Western Digital for nine years (after being acquired in 2016) and was spun off as an independent company in 2025.
Headquarters MILPITAS, CA
Employees 11,100
Listed 2025
Exchange XNAS https://www.sandisk.com SEC filings for SNDK on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 6 3,800 $6.50M Option exercise 2 552 Tax withholding / forfeiture 13 81,320
SNDK Insider Transactions (Form 4) 44 67 Form 4 filings on record, the earliest from Jun 9, 2025, newest first. Filing history page 1 of 3.
Date Insider Transaction Security Shares Price Value Aug 25, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 212
Recent SNDK Form 8-K Filings 3
Recent SNDK Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Jun 3, 2026 - - - - View on EDGAR Jun 1, 2026 - - -
SNDK Insider Trading - FAQ
What is the latest insider trade for SNDK? Sandisk Corp (SNDK) had 12 insider filings in the last 90 days, with the most recent on 2026-08-27. The full record for SNDK runs to 67 Form 4 filings, the earliest from 2025-06-09. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying SNDK stock? No insider purchases of SNDK were filed in the last 90 days.
How many insiders are selling SNDK stock? 6 insider sales of SNDK were filed in the last 90 days, totaling $6.50M.
Where can I see SNDK SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks SNDK Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow SNDK insider buys? Create a free InsiderAlpha account and press Watch on this page to add SNDK to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Information Technology Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track SNDK insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
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Market cap $217.43B
P/E ratio 20.10
Dividend yield -
Average volume 13.63M
52 week high $2,354.39
52 week low $48.56
Today's high $1,517.75
Today's low $1,435.61
Open $1,448.00
Volume 8.14M
Previous close $1,484.95
Shares outstanding 146.42M Market cap
$217.43B
11,100 employees
SNDK Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 6 sales totaling $6.50M.
Most-Active SNDK Insiders - Last 90 Days 10 Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Aug 25, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 49,782 $1,480.77 $73.72M
Aug 25, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 654 $1,480.77 $968K
Aug 20, 2026 AI Alper Ilkbahar - Officer Option exercise Common Stock 276 $0.00 -
Aug 20, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 276 $1,600.62 $442K
Aug 20, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 163 $1,600.62 $261K
Aug 21, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 320 $1,596.08 $511K
Aug 20, 2026 AI Alper Ilkbahar - Officer Option exercise Performance Shares 276 $0.00 -
Aug 20, 2026 LV Luis Felipe Visoso - Officer Tax withholding / forfeiture Common Stock 25,655 $1,600.62 $41.06M
Aug 21, 2026 LV Luis Felipe Visoso - Officer Tax withholding / forfeiture Common Stock 1,589 $1,596.08 $2.54M
Aug 20, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 1,300 $1,600.62 $2.08M
Aug 21, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 1,033 $1,596.08 $1.65M
Aug 20, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 111 $1,600.62 $178K
Aug 21, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 108 $1,596.08 $172K
Aug 3, 2026 BS Bernard Shek - Officer Open-market sale Common Stock 600 $1,162.16 $697K
Jul 1, 2026 BS Bernard Shek - Officer Open-market sale Common Stock 600 $2,088.00 $1.25M
Jun 20, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 117 $2,184.75 $256K
Jun 3, 2026 BS Bernard Shek - Officer Open-market sale Common Stock 600 $1,736.00 $1.04M
Jun 1, 2026 AI Alper Ilkbahar - Officer Open-market sale Common Stock 999 $1,755.31 $1.75M
Jun 1, 2026 AI Alper Ilkbahar - Officer Open-market sale Common Stock 401 $1,757.00 $705K
Jun 1, 2026 AI Alper Ilkbahar - Officer Open-market sale Common Stock 600 $1,758.40 $1.06M
May 25, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 211 $1,478.69 $312K
May 25, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 1,569 $1,478.69 $2.32M
May 25, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 653 $1,478.69 $966K
May 21, 2026 LV Luis Felipe Visoso - Officer Tax withholding / forfeiture Common Stock 1,588 $1,542.24 $2.45M
May 20, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 109 $1,392.56 $152K
May 21, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 107 $1,542.24 $165K
May 20, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 1,299 $1,392.56 $1.81M
May 21, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 1,032 $1,542.24 $1.59M
May 20, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 162 $1,392.56 $226K
May 21, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 319 $1,542.24 $492K
May 12, 2026 MP Michael Pokorny - Officer Open-market sale Common Stock 2,446 $1,426.18 $3.49M
May 8, 2026 NS Necip Sayiner - Director Open-market sale Common Stock 579 $1,503.11 $870K
May 9, 2026 MP Michael Pokorny - Officer Tax withholding / forfeiture Common Stock 1,429 $1,562.34 $2.23M
Apr 20, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 41 $913.02 $37K
Apr 20, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 2,251 $913.02 $2.06M
Mar 20, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 117 $709.71 $83K
Feb 25, 2026 BS Bernard Shek - Officer Tax withholding / forfeiture Common Stock 211 $632.38 $133K
Feb 25, 2026 DG David Goeckeler - Officer Tax withholding / forfeiture Common Stock 1,569 $632.38 $992K
Feb 25, 2026 AI Alper Ilkbahar - Officer Tax withholding / forfeiture Common Stock 566 $632.38 $358K
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