CSS LLC/IL

Position in SNDK — Sandisk Corp

CIK 1103646 CHICAGO, IL

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Position in SNDK

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$451,091

+$43,985 QoQ

Shares Held

710

-58.6% QoQ

Ownership

0.000%

of shares outstanding

% of Portfolio

0.09%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in SNDK Over Time

Shares Held

Position Value (USD)

Derivatives in SNDK

reported options exposure · as of Dec 31, 2025

CallValue

CallShares

PutValue

$783,354

PutShares

3,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Computer Hardware

Technology · as of Mar 31, 2026

CSS LLC/IL holds $10,847,431 across 6 Computer Hardware names. SNDK ranks #4 (4.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WDC	Western Digital Corp	25,433	$6,879,372
2	DELL	Dell Technologies Inc.	10,640	$1,746,343
3	HPQ	Hp Inc	88,775	$1,705,367
4	SNDK	Sandisk Corp This page	710	$451,091
5	NNDM	Nano Dimension Ltd.	19,292	$32,796
6	IONQ	IonQ, Inc.	1,126	$32,462

All Filings in SNDK

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4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$451,091	710	-58.6%	Shares	Sole	2026-05-15
2025-12-31	$407,106	1,715	-48.0%	Shares	Sole	2026-02-17
2025-12-31	$783,354	3,300	+73.2%	Put	Sole	2026-02-17
2025-09-30	$213,741	1,905	—	Shares	Sole	2025-11-13
No filing history on record for this holder in this stock.