Western Digital finalizes Sandisk spin-off, retains 19.9% stake; SNDK trading Feb 24

WESTERN DIGITAL CORP

Spin-off completed Feb 21, 2025: each WDC share received 1/3 Sandisk share; WDC retains 19.9% stake.
Sandisk (SNDK) began Nasdaq trading Feb 24; WDC continues as WDC.
Sandisk paid $1.5B dividend to WDC pre-spin; WDC amended loan agreement, revolver cut from $2.25B to $1.25B.
WDC leadership: Martin Cole named Board Chair; Bruce Kiddoo & Roxanne Oulman appointed directors.
Don Bennett becomes interim CFO effective Feb 28; Irving Tan remains CEO; Chief Product Officer to be hired.

Machine-readable event card

schema_version: secwatch.filing_event.v1
accession: 0001193125-25-033383
form_type: 8-K
ticker: WDC
cik: 0000106040
company_name: WESTERN DIGITAL CORP
filed_at: 2025-02-24T23:59:59+00:00
discovered_at: 2026-05-14T18:03:02.837953+00:00
generated_at: 2026-05-26T05:23:41.443308+00:00
sec_items: ["1.01", "2.01", "2.03", "8.01", "9.01"]
event_type: other_material
sentiment: positive
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: high
secwatch_canonical_url: https://secwatch.observer/filing/0001193125-25-033383
json_url: https://secwatch.observer/filing/0001193125-25-033383.json
markdown_url: https://secwatch.observer/filing/0001193125-25-033383.md
text_url: https://secwatch.observer/filing/0001193125-25-033383.txt
edgar_index_url: https://www.sec.gov/Archives/edgar/data/106040/000119312525033383/0001193125-25-033383-index.htm
edgar_primary_document_url: https://www.sec.gov/Archives/edgar/data/106040/000119312525033383/d847507d8k.htm
generated_by_model: deepseek-v4-flash:cloud@v2
review_status: machine_generated
human_reviewed: false
corrected: false
correction_note: null
correction_timestamp: null
superseded_by: null

Optimum raises $500M via preferred units, starts $300M tender at $2.50 to shield assets from CSC debt

Optimum Communications, Inc. June 1, 2026, 8:16 AM ET other_material Items 1.01, 3.02, 7.01, 8.01, 9.01

same SEC item: 1.01, 8.01, 9.01 same event type: other_material similar materiality

zSpace restructures $12M debt via equity conversion; creates Series P-2 preferred

zSpace, Inc. June 1, 2026, 8:00 AM ET other_material Items 1.01, 1.02, 2.03, 3.02, 5.03, 9.01

same SEC item: 1.01, 2.03, 9.01 same event type: other_material similar materiality

IDEAYA's darovasertib combo meets primary endpoint in Phase 2/3 OptimUM-02 trial for metastatic uveal melanoma

IDEAYA Biosciences, Inc. June 1, 2026, 4:05 PM ET other_material Items 7.01, 8.01, 9.01