WDC

Nasdaq

WESTERN DIGITAL CORP

Latest disclosureSeptember 21, 2026

Insider score Why 0?: 0/ 100
Qualifying buys · 30d: $0

0 purchases · 128 sales

Price by TradingView

Insider transactions 309

Limited filing history

Filters

Last 30 daysNo qualifying insider buying. Sales: $1.02M by 2 insiders.

Showing the first 6 of 20 trades on this page.

Sale disclosed

Cynthia L. Tregillis

Chief Legal Officer & Corp Sec

Common Stock

Reported value: $194.92K
Reported price: $451.20 / share

Sale disclosed

Vidyadhara K. Gubbi

Chief of Global Operations

Common Stock

Reported value: $825.47K
Reported price: $459.8732 / share

Sale disclosed

Stephanie A. Streeter

Director

Common Stock

Reported value: $894.12K
Reported price: $447.06 / share

Sale disclosed

Stephanie A. Streeter

Director

Common Stock

Reported value: $897.16K
Reported price: $448.58 / share

Sale disclosed

Stephanie A. Streeter

Director

Common Stock

Reported value: $728K
Reported price: $455.00 / share

Sale disclosed

Cynthia L. Tregillis

Chief Legal Officer & Corp Sec

Common Stock

Reported value: $214.57K
Reported price: $450.78 / share

Sale disclosed

Cynthia L. Tregillis

Chief Legal Officer & Corp Sec

Common Stock

Reported value: $481.71K
Reported price: $478.36 / share

Sale disclosed

Cynthia L. Tregillis

Chief Legal Officer & Corp Sec

Common Stock

Reported value: $112.16K
Reported price: $477.27 / share

Sale disclosed

Cynthia L. Tregillis

Chief Legal Officer & Corp Sec

Common Stock

Reported value: $305.18K
Reported price: $446.17 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $1.09M
Reported price: $441.4838 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $437.35K
Reported price: $442.2155 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $815.76K
Reported price: $443.3465 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $835.99K
Reported price: $444.6745 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $2.15M
Reported price: $445.4508 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $2.88M
Reported price: $446.3812 / share

Sale disclosed

Irving Tan

Chief Executive Officer

Common Stock

Reported value: $691.35K
Reported price: $447.1831 / share

Sale disclosed

Martin I. Cole

Director

Common Stock

Reported value: $73.97K
Reported price: $462.3013 / share

Sale disclosed

Martin I. Cole

Director

Common Stock

Reported value: $14.88K
Reported price: $465.1231 / share

Sale disclosed

Martin I. Cole

Director

Common Stock

Reported value: $27.14K
Reported price: $424.045 / share

Sale disclosed

Martin I. Cole

Director

Common Stock

Reported value: $13.61K
Reported price: $425.31 / share

Reporting insider	Security / transaction	Amount / price	Value	Traded / disclosed	Source
Chief Legal Officer & Corp Sec	Common StockSale10b5-1	432$451.20 / share	$194.92K	Sep 4Filed Sep 8 · 4d later	SEC filing
Chief of Global Operations	Common StockSale	1,795$459.87 / share	$825.47K	Sep 4Filed Sep 8 · 4d later	SEC filing
Director	Common StockSale2 trades	4,000avg $447.82 / share	$1.79M	Aug 31Filed Sep 2 · 2d later	2 filings 2,000 @ $447.06 · $894.12KSEC filing 2,000 @ $448.58 · $897.16KSEC filing
Director	Common StockSale	1,600$455.00 / share	$728K	Sep 1Filed Sep 2 · 1d later	SEC filing
Chief Legal Officer & Corp Sec	Common StockSale10b5-1	476$450.78 / share	$214.57K	Aug 26Filed Aug 27 · 1d later	SEC filing
Chief Legal Officer & Corp Sec	Common StockSale10b5-1	1,007$478.36 / share	$481.71K	Aug 27Filed Aug 27 · 0d later	SEC filing
Chief Legal Officer & Corp Sec	Common StockSale10b5-1	235$477.27 / share	$112.16K	Aug 21Filed Aug 24 · 3d later	SEC filing
Chief Legal Officer & Corp Sec	Common StockSale10b5-1	684$446.17 / share	$305.18K	Aug 24Filed Aug 24 · 0d later	SEC filing
Chief Executive Officer	Common StockSale10b5-17 trades	20,000avg $444.97 / share	$8.9M	Aug 11Filed Aug 12 · 1d later	7 filings 2,478 @ $441.48 · $1.09MSEC filing 989 @ $442.22 · $437.35KSEC filing 1,840 @ $443.35 · $815.76KSEC filing 1,880 @ $444.67 · $835.99KSEC filing 4,822 @ $445.45 · $2.15MSEC filing 6,445 @ $446.38 · $2.88MSEC filing 1,546 @ $447.18 · $691.35KSEC filing
Director	Common StockSale10b5-14 trades	288avg $450.00 / share	$129.6K	Jul 28Filed Jul 29 · 1d later	4 filings 160 @ $462.30 · $73.97KSEC filing 32 @ $465.12 · $14.88KSEC filing 64 @ $424.05 · $27.14KSEC filing 32 @ $425.31 · $13.61KSEC filing

Showing the latest 20 of 128 trades. Show all 128 trades

Congress transactions 2

All Congress filings

Purchase disclosed

Western Digital Corporation - Common Stock (WDC) · Stock

The filing reports a purchase for the member.

Gilbert CisnerosReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: July 17, 2026

Purchase disclosed

Western Digital Corporation - Common Stock · Stock

The filing reports a purchase for the member.

AAAlan ArmstrongReporting Senate member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: March 27, 2026

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0000106040
Latest public acceptance: Sep 21, 2026, 10:36 PM UTC
Score calculated: Oct 8, 2026, 12:03 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.

Reporting insider

Security / transaction

Amount / price

Value

Traded / disclosed

Source

Chief Legal Officer & Corp Sec

Common StockSale10b5-1

432$451.20 / share

$194.92K

Sep 4Filed Sep 8 · 4d later

SEC filing

Chief of Global Operations

Common StockSale

1,795$459.87 / share

$825.47K

Sep 4Filed Sep 8 · 4d later

SEC filing

Director

Common StockSale2 trades

4,000avg $447.82 / share

$1.79M

Aug 31Filed Sep 2 · 2d later

2 filings

2,000 @ $447.06 · $894.12KSEC filing
2,000 @ $448.58 · $897.16KSEC filing

Director

Common StockSale

1,600$455.00 / share

$728K

Sep 1Filed Sep 2 · 1d later

SEC filing

Chief Legal Officer & Corp Sec

Common StockSale10b5-1

476$450.78 / share

$214.57K

Aug 26Filed Aug 27 · 1d later

SEC filing

Chief Legal Officer & Corp Sec

Common StockSale10b5-1

1,007$478.36 / share

$481.71K

Aug 27Filed Aug 27 · 0d later

SEC filing

Chief Legal Officer & Corp Sec

Common StockSale10b5-1

235$477.27 / share

$112.16K

Aug 21Filed Aug 24 · 3d later

SEC filing

Chief Legal Officer & Corp Sec

Common StockSale10b5-1

684$446.17 / share

$305.18K

Aug 24Filed Aug 24 · 0d later

SEC filing

Chief Executive Officer

Common StockSale10b5-17 trades

20,000avg $444.97 / share

$8.9M

Aug 11Filed Aug 12 · 1d later

7 filings

2,478 @ $441.48 · $1.09MSEC filing
989 @ $442.22 · $437.35KSEC filing
1,840 @ $443.35 · $815.76KSEC filing
1,880 @ $444.67 · $835.99KSEC filing
4,822 @ $445.45 · $2.15MSEC filing
6,445 @ $446.38 · $2.88MSEC filing
1,546 @ $447.18 · $691.35KSEC filing

Director

Common StockSale10b5-14 trades

288avg $450.00 / share

$129.6K

Jul 28Filed Jul 29 · 1d later

4 filings

160 @ $462.30 · $73.97KSEC filing
32 @ $465.12 · $14.88KSEC filing
64 @ $424.05 · $27.14KSEC filing
32 @ $425.31 · $13.61KSEC filing

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0000106040
Latest public acceptance: Sep 21, 2026, 10:36 PM UTC
Score calculated: Oct 8, 2026, 12:03 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.