Sandisk (SNDK)NEOS Investment Management LLC added to its stake +88K shares

109K

Shares reported · +88K vs prior quarter

0.91%

Disclosed portfolio weight

$248M

Reported value

Holdings as of

Jun 30, 2026

Filed

Aug 11, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Mar 27, 2026CongressDisclosed purchase of SNDK — reported range $1,001 - $15,000
2. Jul 1, 2026InsiderOfficer sold ~$1.25M of SNDK shares in the open market
3. Aug 3, 2026InsiderOfficer sold ~$697K of SNDK shares in the open market
4. Aug 5, 2026Company filing · Form 8-K · Results, Other newsReported its results, and reported other company news
5. Aug 5, 20265% stakeJANE STREET GROUP, LLC reported a passive stake (13G) of 5.0%
6. Aug 6, 20265% stakeFMR LLC reported a passive stake (13G) of 5.3%

What came next

1. Sep 1, 2026InsiderOfficer sold ~$915K of SNDK shares in the open market
2. Sep 3, 2026Insider · 1 personInsiders: 34 sales (~$7.9M)
3. Sep 8, 2026InsiderOfficer sold ~$4.08M of SNDK shares in the open market
4. Sep 9, 2026Company filing · Form 8-K · Material agreementSigned an important agreement
5. Sep 10, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On September 10, 2026, following an annual review of the compensation levels of the executive officers of Sandisk Corporation (the “Company”), the Compensation and Talent Committee of the Board of Directors of the Company approved compensation adjustments for Alper Ilkbahar, the Company’s Chief Technology Officer, and Bernard Shek, the Company’s Chief Legal Officer, each effective as of October 1, 2026.”
6. Sep 14, 2026Insider · 1 personInsiders: 13 sales (~$51.7M)
7. Sep 15, 2026InsiderCFO sold ~$1.57M of SNDK shares in the open market
8. Sep 17, 2026Insider · 1 personInsiders: 15 sales (~$53.3M)
9. Oct 1, 2026InsiderOfficer sold ~$1.04M of SNDK shares in the open market

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Sandisk

For Sandisk, OQRO holds 72 insider filings (SEC Form 4 or Form 144), 1 Congress trade report and 61 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its SNDK page.

How this filing works

• SEC Form 13F

Other disclosures at Sandisk

• SEC Form 4Oct 3, 2026
• SEC Form 4Sep 21, 2026
• SEC Form 4Sep 21, 2026
• SEC Form 4Sep 21, 2026
• SEC Form 4Sep 21, 2026
• SEC Form 4Sep 21, 2026

Everything OQRO holds on this company is on its SNDK page.