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Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (17 ops.)
Latest filing published 22 Oct 2026 for Western Digital CORP.
Filing timeline
BuySaleCynthia L. Tregillis
Insider track record
Disclosed buys
0
Disclosed sells
17
Signal history
Cynthia L. Tregillis: trading record in brief
Cynthia L. Tregillis is a declared insider of Western Digital Corp, with filings sourced from SEC (Form 4). The record holds 71 filings, for trades running from 3 March 2025 to 21 October 2026.
Every open-market trade on record is a sale: 17 sales worth €7.1M. Outside the open market, there are 31 share grants and 23 option exercises. Since January 2026: no purchases and 15 sales on the market.
Most recently, on 22 October 2026, the filings show an option exercise in Western Digital Corp. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. For comparison, the SEC allows two business days to file a Form 4. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
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Declarations71 total
14.37 shares0Common StockSEC:0001266824-26-000217:0
1,309.713 shares@ US$364.32Common StockSEC:0001266824-26-000217:1
807 shares@ US$380.00Common StockSEC:0001266824-26-000217:2
7 shares0Common StockSEC:0001266824-26-000199:0
700 shares@ US$441.570.0002% mcap4.1% of flowCommon StockSEC:0001266824-26-000199:1
432 shares@ US$451.200.0001% mcap2.6% of flowCommon StockSEC:0001266824-26-000199:2
7 shares0Common StockSEC:0001266824-26-000188:0
771 shares@ US$450.750.0002% mcap4.6% of flowCommon StockSEC:0001266824-26-000188:1
3,878 shares0Common StockSEC:0001266824-26-000188:2
476 shares@ US$450.780.0001% mcap2.8% of flowCommon StockSEC:0001266824-26-000188:3
9 shares0Common StockSEC:0001266824-26-000188:4
1,631 shares@ US$468.880.0005% mcap10.1% of flowCommon StockSEC:0001266824-26-000188:5
1,007 shares@ US$478.360.0003% mcap6.4% of flowCommon StockSEC:0001266824-26-000188:6
3 shares0Common StockSEC:0001266824-26-000174:0
11 shares0Common StockSEC:0001266824-26-000174:3
379 shares@ US$469.050.0001% mcap2.4% of flowCommon StockSEC:0001266824-26-000174:1
235 shares@ US$477.270.0001% mcap1.5% of flowCommon StockSEC:0001266824-26-000174:2
1,109 shares@ US$459.440.0003% mcap6.7% of flowCommon StockSEC:0001266824-26-000174:4
684 shares@ US$446.170.0002% mcap4.0% of flowCommon StockSEC:0001266824-26-000174:5
13 shares0Common StockSEC:0001266824-26-000160:0
1,309 shares@ US$487.420.0004% mcap8.6% of flowCommon StockSEC:0001266824-26-000160:1
808 shares@ US$529.630.0003% mcap5.8% of flowCommon StockSEC:0001266824-26-000160:2
12 shares0Common StockSEC:0001266824-26-000079:0
1,308 shares@ US$374.110.0022% mcap6.4% of flowCommon StockSEC:0001266824-26-000079:1
363 shares@ US$377.090.0006% mcap1.8% of flowCommon StockSEC:0001266824-26-000079:2
25 of 71 declarations
