WhaleSignals: 13F Tracker Syncly Applications GET — On the App StoreGET — On Google PlayOn the App Store and Google Play View Install View

Tradewire

Market data, fifteen ways


Buzz score U.S. Bancorp 1.28 MediaAlpha, Inc. 0.52 Franklin Covey Co. 0.50 Global Cord Blood Corporation 0.48 Permian Resources Corporation 0.47 Dayforce Inc 0.25 enCore Energy Corp. 0.24 Altria Group, Inc. 0.05
Institutional holdings · SEC EDGAR

SNDK 13F holders: the hedge funds that own, bought and sold Sandisk Corp in Q2 2026

Funds holding Sandisk Corp (SNDK) at 5% or more of their reported 13F portfolio, and the largest moves in reported value for 2026-06-30. Straight from SEC EDGAR, with no price data involved.

Funds at 5%+
1
Biggest adds
2
Biggest trims
6
Quarter
2026-06-30

Funds with a high-conviction position

Only positions worth 5% or more of the fund's reported 13F portfolio, largest first

Fund% of fundFiled
Whale Rock Capital10.89%2026-08-14

Biggest adds and trims

By reported position value, largest first. Capped upstream at 10 on each side, so 10 means “10 or more”

AddingValue% of fundTrimmingValue% of fund
Sands Capital new$348 m1.29%Whale Rock Capital$1.36 bn10.89%
Tudor Investment$184 m0.76%D. E. Shaw$1.28 bn0.79%
Millennium Management$832 m0.56%
Duquesne Family Office$79 m1.82%
Renaissance Technologies$11 m0.02%
Appaloosa$00.00%

SNDK institutional ownership: what the Q2 2026 13F filings show

1 of the 59 funds tracked here holds Sandisk Corp (SNDK) at 5% or more of its reported 13F portfolio. The largest weighting belongs to Whale Rock Capital (10.89%). A 5% position is a deliberate one: at that size SNDK is among the handful of names that decide how the fund's quarter goes.

On the buying side, 2 tracked funds increased their SNDK position in Q2 2026. Ranked by the size of the position they now report, the list is led by Sands Capital ($348 m) and Tudor Investment ($184 m). Sands Capital reported it as a new position, with no SNDK in the previous filing. On the selling side, 6 funds cut their position, led by Whale Rock Capital ($1.36 bn), D. E. Shaw ($1.28 bn) and Millennium Management ($832 m). Appaloosa sold out of SNDK entirely. The dollar figures are the positions as reported at quarter end, not the amounts bought or sold — a 13F gives share counts on two dates, not the trades in between. Each list stops at 10 funds, so a count of 10 means 10 or more.

Among the funds with a page of their own on this site, Whale Rock Capital (10.89%) reports SNDK as one of its ten largest positions; the percentage is the share of that fund's reported portfolio. Each fund's page shows what else it holds alongside SNDK.

SNDK 13F: questions and answers

Which hedge funds own SNDK?

Among the 59 funds tracked here, those holding SNDK at 5% or more of their portfolio in Q2 2026 are Whale Rock Capital (10.89%). Funds holding it as a smaller position are not in that list, so this is the high-conviction end of the ownership, not the full shareholder register.

Which funds bought SNDK in Q2 2026?

Sands Capital (new position) and Tudor Investment. “Bought” here means the share count in the Q2 2026 filing is higher than in the one before.

Which funds sold SNDK in Q2 2026?

Whale Rock Capital, D. E. Shaw, Millennium Management, Duquesne Family Office, Renaissance Technologies and Appaloosa (sold out). A fund marked as sold out reported no SNDK at all at the end of Q2 2026; the others still hold a reduced position.

How current is this SNDK 13F data?

It reflects positions on 2026-06-30, the end of Q2 2026. Managers have 45 days after quarter end to file, so the holdings shown are always between six weeks and four and a half months old; filings for the quarter ending 2026-09-30 are due by 2026-11-14. The page is rebuilt daily, so a late or amended filing is picked up when it reaches the SEC.

Is this every institution that holds SNDK?

No. It covers the 59 funds tracked on this site, and within those only positions of 5% or more in the holders table and the 10 largest moves on each side. Index funds, pension plans and thousands of other 13F filers hold SNDK too; a fund with a position between 0.5% and 5% of its portfolio appears in the adds and trims only if it changed its share count.

Source: SEC EDGAR, Form 13F-HR and Form 4 — public domain, reproduced as filed. The table above lists only the funds, among the 59 we track, holding this stock at 5% or more of their portfolio. It is neither the total number of institutions holding the stock nor every fund we track that holds it — smaller positions, down to the 0.5% reporting floor, do not appear here. 13F carries up to a 45-day reporting delay and options are excluded. Values are as reported in the filing, not current market value. Insiders are counted, never named. The company name is EDGAR's own spelling.

See the filings for SNDK on SEC EDGAR

This page covers one stock in one quarter. Every fund, every quarter-over-quarter change and every insider purchase live in WhaleSignals.

All stocks we cover, side by side