WAVEMAN · COMPANY

WDC · Western Digital Corp

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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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WDC

Name: WESTERN DIGITAL CORP (WDC) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

WESTERN DIGITAL CORP

INDUSTRIALS · COMPUTER STORAGE DEVICES · CIK 0000106040

FORM 144 · 7☆ WATCH

INSIDER NET · 180D

-$34.6M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

1,131

13F, latest reported quarter

REVENUE GROWTH

+35.7%

XBRL, annual

NET MARGIN

72.9%

CONVERSIONS · 180D

codes C/M, not in net · $0 priced

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$34.6M over 180 days

-$16.8M over 90 days

below 87% of Industrials

CONGRESS

no member of Congress has reported trading it

FUNDS

1,131 funds added or opened last quarter

more than 94% of Industrials

REVENUE

+35.7% year over year

more than 85% of Industrials

MARGIN

72.9% net margin

the highest in Industrials

BUYBACKS

$2.6B repurchased, FY to 2026-07-03

more than 96% of Industrials

SHORT

no short interest reported

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$34.6M across 7 people in 180 days.

1,131 funds added or opened positions in the latest 13F quarter, of 1,850 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +449.5%

+449.5%12M

INSIDER SELLFORM 144

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

Insiders have filed to sell — before selling.

The record shows a net $34.6M sold by insiders over 180 days, 1,131 funds added last quarter, $14.9M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

DELL ANET TDG TSLA PANW AXON STX KTOS CRCT OFLX JOBY FTNT

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, WESTERN DIGITAL CORP insiders sold a net $34.6M of stock across 267 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

STREETER STEPHANIE A

Director

SELL

2026-09-01

1,600.0

$728.0K

STREETER STEPHANIE A

Director

SELL

2026-08-31

2,000.0

$894.1K

STREETER STEPHANIE A

Director

SELL

2026-08-31

2,000.0

$897.2K

Tregillis Cynthia L

Chief Legal Officer & Corp Sec

SELL

2026-08-27

1,007.0

$481.7K

Tregillis Cynthia L

Chief Legal Officer & Corp Sec

SELL

2026-08-26

476.0

$214.6K

267 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 262 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

32,953,613.0 sh

$21.0B

FMR LLC

25,983,645.0 sh

$16.6B

VANGUARD CAPITAL MANAGEMENT LLC

22,510,811.0 sh

$14.4B

JPMORGAN CHASE & CO

17,007,789.0 sh

$11.1B

Capital World Investors

16,598,211.0 sh

$10.6B

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

Planned sales · Form 144

Filed before the sale — intent, not a trade

STREETER STEPHANIE A

FILED 2026-08-31

$4.5M

CYNTHIA LOCK TREGILLIS

FILED 2026-08-27

$481.7K

CYNTHIA LOCK TREGILLIS

FILED 2026-08-26

$214.6K

CYNTHIA LOCK TREGILLIS

FILED 2026-08-24

$305.2K

CYNTHIA LOCK TREGILLIS

FILED 2026-08-21

$112.2K

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Calamos Convertible Equity Alternative ETF

$2.7M POSITION · AS OF 2026-04-30

12.7%

Select Tech Hardware Portfolio

$163.2M POSITION · AS OF 2026-02-28

8.7%

Fidelity Focused Stock Fund

$363.3M POSITION · AS OF 2026-04-30

7.3%

Pacer Nasdaq 100 Top 50 Cash Cows Growth Leaders ETF

$762.6K POSITION · AS OF 2026-04-30

6.8%

Mohr Company NAV ETF

$2.2M POSITION · AS OF 2026-03-31

6.4%

ProShares Nasdaq-100 Dorsey Wright Momentum ETF

$724.1K POSITION · AS OF 2026-02-28

6.4%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2026-07	2025-06	2024-06	2023-06
REVENUE	$12.9B	$9.5B	$6.3B	$6.3B
GROSS PROFIT	$6.3B	$3.7B	$1.8B	$1.4B
OPERATING INCOME	$4.5B	$2.3B	$-403.0M	$-548.0M
NET INCOME	$9.4B	$1.9B	$-798.0M	$-1.7B
EPS (DILUTED)	24.28	5.12	-2.61	-5.37
OPERATING CASH FLOW	$3.9B	$1.7B	$-294.0M	$-408.0M
CASH	$1.6B	$2.1B	$1.6B	$2.0B
LONG-TERM DEBT	$0	$2.5B	$5.7B	$5.9B
BUYBACKS	$2.6B	$149.0M	$0	$0
DIVIDENDS PAID	$174.0M	$44.0M	$0	$0

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE