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144 ·Filed Oct 29, 2026

WDC

WESTERN DIGITAL CORP
NEUTRAL
Impact 2/10
Horizonimmediate Processed7d 3h ago SEC0001968582-26-001081
Form 144: notice of proposed sale of securities
Actionable Insight • Neutral

The sale is small in proportion to market cap and appears to be a routine diversification move by an affiliate. Monitor for any subsequent Form 4 filings to confirm execution, but no material impact is expected.

DirectionNeutral
Confidencehigh
Horizonimmediate

How the stock moved after the report

NEUTRAL VIEWSTOCK BELOW ENTRY AT T+1
Entry
$366.11
T+0 close · Oct 29, 2026 · via day close
Latest settled
−7.52%
T+1 · $338.59
vs SPY
−7.04%
α at T+1
Next horizon
T+5
due 12h ago
  1. T+0 · Oct 29 $366.11entry
  2. T+1 · 7d ago −7.52%α −7.04% · $338.59
  3. T+5 · due 12h ago Pending
  4. T+5 · todayOpen
  5. T+20 · in 21d Pending
  6. T+60 · in 3mo Pending
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Executive Summary

Martin I Cole, an affiliate of Western Digital, filed a Form 144 notice of intent to sell 4,000 shares of common stock through J.P. Morgan Securities, with an approximate market value of $1.59 million based on the filing. The shares were acquired via compensation on November 14, 2023, and the sale is proposed for October 29, 2026. This is a relatively small sale relative to the company's $142.6B market cap and appears routine.

Key Facts

  • Martin I Cole (affiliate) filed Form 144 to sell 4,000 shares of Western Digital common stock
  • Estimated aggregate market value of shares to be sold: $1,585,680
  • Shares were acquired on November 14, 2023 as compensation from the issuer
  • Broker for the proposed sale: J.P. Morgan Securities LLC
  • Sale proposed for October 29, 2026
  • The filing notes shares are held by the Martin I Cole Revocable Trust, Martin I Cole as Trustee

Financial Impact

Proposed sale of 4,000 shares valued at approximately $1.59 million, representing about 0.001% of Western Digital's $142.6B market cap

dilution

Risk Factors

  • Form 144 is an intent to sell; the actual sale may not occur
  • Insider selling ahead of earnings or other catalysts is not indicated by the filing date alone

Market Snapshot

Exchange
Nasdaq
Sector
Computer Storage Devices
Analyst Consensus
77% bullish (31 analysts)

Investment Themes

Software & IT

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001968582-26-001081
Document: 0001968582-26-001081-index.html0001968582-26-001081
Document: 0001968582-26-001081.txt0001968582-26-001081
27 reports for WDC
Performance horizon
50% Hit rate @ T+5 2 of 4 bullish or bearish reports Went positive at some point 3 of 4 best @ T+1▲ +7.14%Mar 2, 2026
Filters
Rows
Reports for WDC, sortable and filterable
TypeNow
Nov 5, 2026
today
SC 13G/A
NEUTRAL ★ 3/10
$273.92awaiting T+5awaiting T+5$267.63 (−2.30%)
Oct 29, 2026
7d ago
144
NEUTRAL ★ 2/10
$366.11awaiting T+5awaiting T+5$267.63 (−26.90%)
Oct 22, 2026
14d ago
8-K
BULLISH ★ 7/10
$343.67 $366.11▲ +6.53%▲ +7.09%$267.63 (−22.13%)
Oct 20, 2026
16d ago
Institutional Cluster
MIXED ★ 3/10
$378.51 $380.88▲ +0.63%▲ +0.73%$267.63 (−29.29%)
Oct 12, 2026
24d ago
Institutional Cluster
BULLISH ★ 4/10
$386.94 $352.21▼ −8.98%▼ −7.48%$267.63 (−30.83%)
Oct 5, 2026
4w ago
DEFA14A
NEUTRAL ★ 3/10
$411.04 $380.71▼ −7.38%▼ −7.24%$267.63 (−34.89%)
Oct 5, 2026
4w ago
DEF 14A
NEUTRAL ★ 4/10
$411.04 $380.71▼ −7.38%▼ −7.24%$267.63 (−34.89%)
Sep 14, 2026
7w ago
8-K
NEUTRAL ★ 4/10
$426.94 $448.17▲ +4.97%▲ +4.87%$267.63 (−37.31%)
Sep 2, 2026
9w ago
Insider Cluster
BEARISH ★ 4/10
$441.57 $447.18▼ −1.27%▼ −2.42%$267.63 (+39.39%)
Sep 2, 2026
9w ago
Insider Cluster
NEUTRAL ★ 2/10
$441.57 $447.18▲ +1.27%▲ +2.42%$267.63 (−39.39%)
Showing 10 of 27

US Market Status

Market Closed · Opens Mon (62h 8m)

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Report published Oct 29, 2026