SNDK in the 13F filings

SanDisk Corp · CUSIP 80004C200

Sector · Technology hardware and equipment Theme · AI infrastructure and semiconductors· L3VLUP-defined

Quarter

Q3 2026 · early filers Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025

Quarter end: 31 Mar 2026; the date the book describes
Filed: 27 Oct 2026; latest of these filings; the earliest 12 May 2026
Managers listing it: 42; at least, of 95 tracked, among listed positions
Comparable managers: 91; filed both Q4 2025 and Q1 2026; 25 listed it in both
Shares listed: 31,500,717; combined, among listed positions
Reported value: $19.9bn; combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 18 buyers (opened or added shares) and 25 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -9,783,931.

Managers listing SNDK in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

ActionShare of book at least

42 of 42 holders

				Action		Filing
Fidelity (FMR LLC)	13,389,985	$8.5bn	0.45%	Trimmed	-8,076,300	15 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP	2,823,970	$1.8bn	0.97%	Trimmed	-654,032	14 May 2026 (the filing on sec.gov)
Jane Street Group LLC	1,787,655	$1.1bn	0.15%	Added	+941,492	12 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.	1,172,928	$745m	0.45%	Trimmed	-920,075	15 May 2026 (the filing on sec.gov)
Invesco Ltd	1,165,224	$740m	0.07%	Trimmed	-161,181	12 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	1,155,739	$734m	0.08%	Trimmed	-281,432	15 May 2026 (the filing on sec.gov)
Millennium Management LLC	1,142,295	$726m	0.30%	Trimmed	-356,844	15 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP	986,344	$627m	0.07%	Added	+872,962	15 May 2026 (the filing on sec.gov)
Whale Rock Capital Management LLC	799,587	$508m	6.56%	Trimmed	-203,979	15 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC	799,568	$508m	0.79%	Trimmed	-409,432	14 May 2026 (the filing on sec.gov)
Two Sigma Investments LP	762,726	$485m	0.39%	Added	+47,501	15 May 2026 (the filing on sec.gov)
AQR Capital Management LLC	693,789	$420m	0.19%	Trimmed	-440,785	15 May 2026 (the filing on sec.gov)
Wellington Management Group LLP	623,172	$396m	0.07%	Added	+519,584	15 May 2026 (the filing on sec.gov)
Citadel Advisors LLC	607,797	$386m	0.06%	Added	+204,508	15 May 2026 (the filing on sec.gov)
Marshall Wace LLP	564,586	$359m	0.36%	Trimmed	-439,114	15 May 2026 (the filing on sec.gov)
Point72 Asset Management LP	376,608	$239m	0.31%	Trimmed	-205,281	15 May 2026 (the filing on sec.gov)
Holocene Advisors LP	305,770	$194m	0.47%	New	new	15 May 2026 (the filing on sec.gov)
Appaloosa LP	281,250	$179m	3.01%	New	new	15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC	278,562	$177m	0.21%	Trimmed	-200,621	15 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC	231,730	$142m	0.11%	Trimmed	-273,360	27 Oct 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	217,521	$138m	0.07%	Added	+34,285	18 May 2026 (the filing on sec.gov)
Discovery Capital Management LLC	183,700	$117m	6.06%	New	new	15 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP	131,559	$84m	0.74%	Added	+8,197	15 May 2026 (the filing on sec.gov)
AllianceBernstein LP	331,949	$79m	under 0.1%	Trimmed	-116,177	15 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC	94,000	$60m	0.24%	Trimmed	-289,320	15 May 2026 (the filing on sec.gov)

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Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Jane Street Group LLCexisting position · 1,787,655 shares now+941,492
Susquehanna International Group LLPexisting position · 986,344 shares now+872,962
Wellington Management Group LLPexisting position · 623,172 shares now+519,584
Holocene Advisors LPnew position · 305,770 shares now+305,770
Appaloosa LPnew position · 281,250 shares now+281,250

Reductions

Fidelity (FMR LLC)existing position · 13,389,985 shares now-8,076,300
D. E. Shaw & Co.existing position · 1,172,928 shares now-920,075
Arrowstreet Capital LPexisting position · 2,823,970 shares now-654,032
AQR Capital Management LLCexisting position · 693,789 shares now-440,785
Marshall Wace LLPexisting position · 564,586 shares now-439,114

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (9)

Exited (1)

Quantbot Technologies LPwas $7.4m

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.

7 in Q1 2025 to 41 in Q2 2026

Tracked managers listing it, at least.

the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SNDK and NVDA →SNDK and AVGO →SNDK and MU →Choose a stock to compare with SNDK →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SNDK, latest filings →Back to the 13F Explorer →

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Quarter	Holders	Reported value	Buyers	Sellers
Q1 2025	7	$1.3bn	7	0
Q2 2025	14	$1.6bn	11	2
Q3 2025	19	$4.2bn	13	9
Q4 2025	27	$9.8bn	20	17
Q1 2026	38	$19.8bn	18	25
Q2 2026	41	$55.4bn	18	29