SNDK — 3 insiders, all selling

Form 4 lag: insiders have 2 business days to file after a trade (weekends and holidays extend this), and this site re-ingests once daily — a transaction can appear here roughly three business days after it happened.
13F lag: quarterly 13F-HR holdings cover the prior quarter-end and are due 45 days after it — every institutional position shown here is at least 45 days old by construction, often more.
CUSIP→ticker gaps: 13F positions are reported by CUSIP; some holdings cannot be matched to a current ticker (delistings, corporate actions, thin metadata) and appear without one or are omitted from ticker-level views.
EDGAR timing variability: institutions file at different hours and days within their windows; amended filings (4/A, 13F-HR/A) can restate earlier periods, so historical aggregates may change between batches.

Sandisk Corp · Industrials · ISO week 2026-W35 (2026-08-25 → 2026-08-25)

WATCH − all sells routine-only window · clu-b1d205f798b2 · detected 2026-08-28

3Distinct insiders

3Transactions

−$75.0MTotal reported value

3Source filings

Members

Insider	Role	Txns	Reported value
Goeckeler David	Chairman and CEO	1	$73.7M
Ilkbahar Alper	EVP, Chief Technology Officer	1	$968k
Shek Bernard	Chief Legal Officer & Secty	1	$314k

− Goeckeler David Chairman and CEO F routine 49,782 sh @ $1480.77 = $73.7M 0001363249-26-000071
− Ilkbahar Alper EVP, Chief Technology Officer F routine 654 sh @ $1480.77 = $968k 0001363249-26-000070
− Shek Bernard Chief Legal Officer & Secty F routine 212 sh @ $1480.77 = $314k 0001363249-26-000072