SNDK

SANDISK CORP

Data as of 2026 Q2 (06-30) · 13F snapshot

Summary

SANDISK CORP (SNDK) is held as common stock by 11 tracked hedge-fund managers, with a combined reported value of ~$8.72B; the largest are Leopold Aschenbrenner, Alex Sacerdote, Izzy Englander. 4 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 1 new, 2 added, 8 trimmed, 1 closed. 20 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.

Attention · HighThis quarter · Cooling

Common-stock holders114 also report options

Congress trades20

Price$1713vs quarter-end-24.67%

Sectors2

This quarter's moves

New1

Added2

Trimmed / sold9

Top holderLeopold Aschenbrenner

Common-stock positions

PUT and CALL disclosures are excluded from these holder counts and values.

Leopold AschenbrennerBig add

Value $5.67B28.1% of portfolio2,495,3442026 Q2

Alex SacerdoteTrim

Value $1.36B10.9% of portfolio596,5452026 Q2

Izzy EnglanderTrim

Value $832.48M0.6% of portfolio366,1292026 Q2

Paul Tudor JonesAdd

Value $183.71M0.8% of portfolio80,7952026 Q2

Dan BinNew large stake

Value $175.70M10.7% of portfolio77,2762026 Q2

Joel GreenblattTrim

Value $140.70M0.3% of portfolio61,8812026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Leopold Aschenbrenner	2026 Q2	$5.67B	2,495,344	28.1%	Big add
Alex Sacerdote	2026 Q2	$1.36B	596,545	10.9%	Trim
Izzy Englander	2026 Q2	$832.48M	366,129	0.6%	Trim
Paul Tudor Jones	2026 Q2	$183.71M	80,795	0.8%	Add
Dan Bin	2026 Q2	$175.70M	77,276	10.7%	New large stake
Joel Greenblatt	2026 Q2	$140.70M	61,881	0.3%	Trim

PUT / CALL disclosures

Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.

Ken GriffinPUT—

Value $11.72B— of portfolio5,155,9492026 Q2

Ken GriffinCALL—

Value $10.34B— of portfolio4,546,5002026 Q2

Izzy EnglanderPUT—

Value $362.43M— of portfolio159,4002026 Q2

Paul Tudor JonesPUT—

Value $176.67M— of portfolio77,7002026 Q2

Steven CohenPUT—

Value $168.03M— of portfolio73,9002026 Q2

Izzy EnglanderCALL—

Value $160.53M— of portfolio70,6002026 Q2

Steven CohenCALL—

Value $130.51M— of portfolio57,4002026 Q2

Paul Tudor JonesCALL—

Value $56.84M— of portfolio25,0002026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Ken GriffinPUT	2026 Q2	$11.72B	5,155,949	—	—
Ken GriffinCALL	2026 Q2	$10.34B	4,546,500	—	—
Izzy EnglanderPUT	2026 Q2	$362.43M	159,400	—	—
Paul Tudor JonesPUT	2026 Q2	$176.67M	77,700	—	—
Steven CohenPUT	2026 Q2	$168.03M	73,900	—	—
Izzy EnglanderCALL	2026 Q2	$160.53M	70,600	—	—
Steven CohenCALL	2026 Q2	$130.51M	57,400	—	—
Paul Tudor JonesCALL	2026 Q2	$56.84M	25,000	—	—

Insider Trading

Officers · directors · Form 4

Open-market purchases and sales (P/S)18

David Goeckeler
Chairman & CEO
Sell$1.01M
640 @ $1579Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$1.71M
1,080 @ $1584Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$15.07M
9,604 @ $1569Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$481.4K
306 @ $1573Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$6.53M
4,139 @ $1577Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$261.9K
165 @ $1587Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$2.34M
1,480 @ $1580Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$7.16M
4,558 @ $1571Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$62.7K
40 @ $1567Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$1.43M
910 @ $1570Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$1.82M
1,157 @ $1573Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$4.07M
2,588 @ $1575Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$4.38M
2,778 @ $1576Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$2.41M
1,520 @ $1586Traded 2026-09-17Filed 2026-09-21
David Goeckeler
Chairman & CEO
Sell$4.54M
2,876 @ $1578Traded 2026-09-17Filed 2026-09-21
Luis Felipe Visoso
EVP & CFO
Sell$1.57M
1,000 @ $1569Traded 2026-09-15Filed 2026-09-16
David Goeckeler
Chairman & CEO
Sell$4.69M
3,075 @ $1524Traded 2026-09-14Filed 2026-09-16
David Goeckeler
Chairman & CEO
Sell$21.87M
14,364 @ $1523Traded 2026-09-14Filed 2026-09-16

Insider transactions are public SEC Form 4 disclosures (company officers, directors, 10% owners), for research only — not investment advice.

Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.