Dilution profile // every instrument, one screen, from SEC filings

WESTERN DIGITAL CORP (WDC)

CIK 106040 · all EDGAR filings →

Overall dilution risk
HIGHworst of 3 computed signals (offering ability)
= the worst band among the computed sub-ratings, no hidden weighting
not every sub-rating was computable; treat as a floor
Offering ability
HIGHS-3ASR on file 2024-08-26
= is there a registration (S-1/S-3 family) on file without a later withdrawal
no structured fee data on the live registrations, so this is a yes/no, not a size
Overhead supply
NOT COMPUTEDno warrant count tagged in XBRL
= warrant shares outstanding divided by current shares outstanding
absence of a tag is not proof of absence of warrants
Historical dilution
LOW+8% O/S in 3y
= share count now vs 3 years ago (bands: 30% / 100%); a reverse split pushes this negative
Cash need
LOWoperating cash flow positive
= cash vs trailing operating burn (bands: 6mo / 24mo; positive operating CF = low)

Same rating bands the category standard uses, but free, with the formula on the chip and the gaps in the data said out loud.

Shares outstanding over time

2020-08-192026-04-23

Latest: 344.7M shares as of Apr 23, 2026 (10-Q).

Cash runway

Self-funding

profitable · generates cash

Full breakdown: cash runway tool · source filing →

Warrants

Balance-sheet fair value of warrants: $71.0M as of Jul 1, 2016.

Convertible notes

NotePrincipalCarryingConv. priceRateIf converted
Three Point Zero Zero Percent Convertible Notes Due Two Thousand Twenty Eight$1.60B$1.60B$37.723%~42.4M sh

If every note above converted at its tagged price: ~42.4M new shares on 344.7M currently outstanding. An estimate from principal ÷ conversion price, with inputs carrying different as-of dates; make-whole adjustments, capped calls and partial repurchases are not modeled.

Notes exactly as the company dimensioned them in its 10-Q filed May 1, 2026. Principal is face amount as tagged, not what remains after repurchases unless the filer updated the tag. A note the filer did not dimension is absent here, not absent from the balance sheet; the exhibits stay the ground truth.

Fully diluted build-up

Shares outstanding plus every potential-share instrument the filer tagged in XBRL, each at its own as-of date. An estimate assembled from filed figures, not a filing figure itself.

Shares outstanding344.7MApr 23, 2026
+ Three Point Zero Zero Percent Convertible Notes Due Two Thousand Twenty Eight (if fully converted)42.4MApr 3, 2026
Fully diluted estimate387.1M+12.3% vs O/S

Still excluded, because the filer does not tag them in countable form: employee options and RSUs, any instrument living only in exhibit prose, and instruments above missing a share count. Inputs carry different as-of dates, shown per row. Each figure traces to the tranche and note tables above and their cited filings.

Registrations and offerings

S-3ASRAug 26, 2024fee exhibit found but no total offering amount (fees deferred, typical for automatic shelves)filing →

Last 12 months: 1 executed · 0 registered.

EXECUTEDJun 3, 2026Unregistered share sale disclosed (8-K item 3.02)8-K
UPDATEAug 27, 2024Resale prospectus — existing holders registering to sell424B7
REGISTEREDAug 26, 2024Automatic shelf registration — effective immediately (large filers)S-3ASR
UPDATEDec 22, 2023Resale prospectus — existing holders registering to sell424B7
EXECUTEDNov 3, 2023Unregistered share sale disclosed (8-K item 3.02)8-K
EXECUTEDFeb 1, 2023Unregistered share sale disclosed (8-K item 3.02)8-K
EXECUTEDDec 9, 2021Prospectus supplement priced — shares or notes (large filers: often a bond deal)424B2
EXECUTEDDec 7, 2021Prospectus supplement priced — shares or notes (large filers: often a bond deal)424B2
MARKETINGDec 7, 2021Free-writing prospectus — offering being marketedFWP
REGISTEREDAug 27, 2021Automatic shelf registration — effective immediately (large filers)S-3ASR

Full history and shelf status: offering checker · S-3 shelf checker

Source: SEC EDGAR XBRL company facts and filing metadata, fetched live and cached briefly. Share counts are cover-page figures with their form named. Warrant tranches and convertible notes come from the dimensioned facts in the latest 10-Q/10-K instance document, exactly as the company tagged them; untagged tranches and notes are absent, not disproven. Nothing on this page is manually verified and nothing is behind a login: what free data supports is shown, what it cannot support is stated. Not investment advice.

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