SANDISK CORP (SNDK) Institutional Ownership Changes & 13F Activity
SANDISK CORP (SNDK) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC, Appaloosa Management, Parnassus Endeavor Fund, Situational Awareness Partners, and Polen Capital Management.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2026 | Renaissance Technologies LLC | Sell | -409,432 | 799,568 | $507,997,533 |
| Q1 2026 | Appaloosa Management | Buy | 281,250 | 281,250 | $178,689,375 |
| Q1 2026 | Parnassus Endeavor Fund | Sell | -107,463 | 80,309 | $51,023,520 |
| Q1 2026 | Situational Awareness Partners | Buy | 85,919 | 1,140,119 | $724,363,205 |
| Q1 2026 | Polen Capital Management | Sell | -1,407 | 453 | $287,809 |
| Q1 2026 | Sequoia Financial Advisors | Buy | 703 | 5,475 | $3,478,487 |
| Q4 2025 | Situational Awareness Partners | Buy | 939,200 | 1,054,200 | $250,245,996 |
| Q4 2025 | Parnassus Endeavor Fund | Sell | -737,495 | 187,772 | $44,573,317 |
| Q4 2025 | Renaissance Technologies LLC | Buy | 373,800 | 1,209,000 | $286,992,420 |
| Q4 2025 | Polen Capital Management | Buy | 1,860 | 1,860 | $441,527 |
| Q4 2025 | Sequoia Financial Advisors | Buy | 1,559 | 4,772 | $1,132,777 |
| Q3 2025 | Renaissance Technologies LLC | Buy | 422,100 | 835,200 | $93,709,440 |
| Q3 2025 | Situational Awareness Partners | Buy | 115,000 | 115,000 | $12,903,000 |
| Q3 2025 | Parnassus Endeavor Fund | Sell | -93,894 | 925,267 | $103,814,957 |
| Q3 2025 | Sequoia Financial Advisors | Buy | 3,213 | 3,213 | $360,499 |
| Q2 2025 | Renaissance Technologies LLC | Buy | 413,100 | 413,100 | $18,734,085 |
| Q2 2025 | Parnassus Endeavor Fund | Buy | 267,816 | 1,019,161 | $46,218,951 |
| Q1 2025 | Parnassus Endeavor Fund | Buy | 751,345 | 751,345 | $35,771,535 |
| Q1 2025 | Thunderbird Partners | Buy | 93,400 | 93,400 | $4,446,774 |
Frequently asked questions about SNDK activity
Which institutional owners are buying SNDK?
Institutional owners buying SNDK include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in SNDK activity?
"Buy" means an investor increased their reported position in SNDK compared to the prior reporting period. This reflects growing exposure to SANDISK CORP (SNDK) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in SNDK increasing?
Institutional interest in SNDK can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.