SNDK
Sandisk Corp · Technology · Market cap $181.3B
Insiders sold $121.2M net in the last 90 days ·4 sellers, 0 buyers· 8 of 8 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 3, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$133.8M
reported sales (SEC code S)
Unique Insiders
7
in the rolling window
Latest filing
Oct 22, 2026
Shek Bernard
Sandisk Corp (SNDK) has 68 SEC Form 4 filings (150 transaction rows) in the rolling window, disclosed by 7 distinct insiders. Most recent filing: Oct 22, 2026.
Inside the rolling window, 7 insiders at Sandisk Corp reported no open-market purchases and 15 open-market sales totaling $133.8M. The most active filer is Chief Legal Officer and Secty Shek Bernard with 6 filings. Insiders have net sold $131.3M over the trailing 6 months. The most recent open-market filing is a sale of 600 shares by Chief Legal Officer and Secty Shek Bernard, dated Oct 1, 2026, worth $1.0M.
- Industry:Computer Hardware
- CEO:David V. Goeckeler
- Employees:11,000
- HQ:Milpitas, CA, US
- IPO:1995-11-08
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Legal Officer and Secty | Sale | 600 | $1.0M | Oct 3 | -27.4% | SEC ↗ | |
| Chairman & CEO | Sale | 33,841 | $53.3M | Sep 21 | -29.9% | SEC ↗ | |
Visoso Luis FelipeFirst filing | EVP & CFO | Sale | 1,000 | $1.6M | Sep 16 | — | SEC ↗ |
Goeckeler DavidFirst filing | Chairman & CEO | Sale | 33,838 | $51.7M | Sep 16 | — | SEC ↗ |
| EVP & Chief Technology Officer | Sale | 5,112 | $7.9M | Sep 9 | — | SEC ↗ | |
| Chief Legal Officer & Secty | Sale | 2,308 | $4.1M | Sep 9 | — | SEC ↗ | |
| Chief Legal Officer & Secty | Sale | 600 | $915K | Sep 2 | — | SEC ↗ | |
| Chief Legal Officer & Secty | Sale | 600 | $697K | Aug 5 | — | SEC ↗ | |
| Chief Legal Officer & Secty | Sale | 600 | $1.3M | Jul 2 | — | SEC ↗ | |
Shek BernardFirst filing | Chief Legal Officer & Secty | Sale | 600 | $1.0M | Jun 5 | — | SEC ↗ |
Ilkbahar AlperFirst filing | EVP, Chief Technology Officer | Sale | 2,000 | $3.5M | Jun 2 | — | SEC ↗ |
Pokorny MichaelFirst filing | VP, Chief Accounting Officer | Sale | 2,446 | $3.5M | May 14 | — | SEC ↗ |
| Director | Sale | 579 | $870K | May 12 | — | SEC ↗ | |
Suzuki MiyukiFirst filing | Director | Sale | 3,500 | $2.2M | Feb 26 | — | SEC ↗ |
Sayiner NecipFirst filing | Director | Sale | 1,271 | $248K | Dec 4 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading SNDK 10 all-time
- RSen. Alan ArmstrongPurchase$1,001 - $15,0002026-03-27
- DRep. Josh GottheimerPurchase$1,001 - $15,0002026-05-07
- DRep. Josh S. GottheimerPurchase$1,001 - $15,0002026-05-07
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002026-01-09
- DRep. Ro KhannaPurchase$1,001 - $15,0002026-01-29
- DRep. Ro KhannaPurchase$1,001 - $15,0002026-01-23
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Reddit mentions
See all →SNDK is the #18 most-discussed ticker across finance subreddits, with 8 mentions in the last 24 hours, +2 vs the day before, hottest in r/WallStreetBets.
Mention counts are conversation volume, not a quality signal. Not investment advice.
Frequently asked questions
How many SEC Form 4 insider filings does SNDK have?
Sandisk Corp (SNDK) has 68 SEC Form 4 filings (150 transaction rows) in the rolling 365-day window, disclosed by 7 distinct insiders. Most recent filing: Oct 22, 2026.
When was the most recent SEC Form 4 filing for SNDK?
The most recent Form 4 filing for SNDK on Tracefour is dated Oct 22, 2026.
Who is the most active insider at SNDK?
The most active SEC Form 4 filer at SNDK in the rolling window is Chief Legal Officer and Secty Shek Bernard, with 6 filings.
What is the net insider flow at SNDK over the last 6 months?
Over the trailing 180 days, insiders at SNDK have net sold $131.3M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at SNDK in the current window?
Inside the rolling window, insiders at SNDK bought $0 and sold $133.8M based on SEC Form 4 filings.
Can I get alerts for SNDK insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Sandisk Corp (SNDK). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Sandisk Corp is in the Technology sector.