WDC Western Digital

• None no insider bought on the open market
• $19M sold by 6 insiders outside a trading plan
• $56.3M sold by 5 insiders under 10b5-1 plans

1. Insider
   Trade
   Value
   Traded, filed
2. Cynthia L Tregillis Chief Legal Officer & Corp Sec
   Planned sale
   $307K 807 shares at $380.00 0.7% of stake
   Traded Oct 21 Filed Oct 22
   ↗
3. Cynthia L Tregillis Chief Legal Officer & Corp Sec
   Planned sale
   $195K 432 shares at $451.20 0.4% of stake
   Traded Sep 4 Filed Sep 8
   ↗
4. Vidyadhara K Gubbi Chief of Global Operations
   Sale
   $825K 1,795 shares at $459.87 2.2% of stake
   Traded Sep 4 Filed Sep 8
   ↗
5. Stephanie A Streeter Director
   Sale
   $2.5M 5,600 shares at $449.87 14% of stake
   Traded Aug 31–Sep 1 Filed Sep 2
   ↗
6. Cynthia L Tregillis Chief Legal Officer & Corp Sec
   Planned sale
   $696K 1,483 shares at $469.51 1.3% of stake
   Traded Aug 26–27 Filed Aug 27
   ↗
7. Cynthia L Tregillis Chief Legal Officer & Corp Sec
   Planned sale
   $417K 919 shares at $454.12 0.8% of stake
   Traded Aug 21–24 Filed Aug 24
   ↗
8. Irving Tan CEO
   Planned sale
   $8.9M 20,000 shares at $444.97 3.4% of stake
   Traded Aug 11 Filed Aug 12
   ↗
9. Martin I Cole Director
   Planned sale
   $89K 192 shares at $462.77 0.9% of stake
   Traded Jul 28 Filed Jul 29
   ↗
10. Martin I Cole Director
    Planned sale
    $1.7M 3,808 shares at $448.66 15% of stake
    Traded Jul 28 Filed Jul 29
    ↗
11. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    Planned sale
    $428K 808 shares at $529.63 0.7% of stake
    Traded Jul 21 Filed Jul 21
    ↗
12. Martin I Cole Director
    Planned sale
    $386K 720 shares at $536.01 2.8% of stake
    Traded Jun 9 Filed Jun 11
    ↗
13. Martin I Cole Director
    Planned sale
    $1.7M 3,280 shares at $511.16 11% of stake
    Traded Jun 9 Filed Jun 11
    ↗
14. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    Planned sale
    $236K 432 shares at $545.60 0.4% of stake
    Traded Jun 5 Filed Jun 5
    ↗
15. Vidyadhara K Gubbi Chief of Global Operations
    Sale
    $1.4M 2,475 shares at $556.24 2.8% of stake
    Traded Jun 1 Filed Jun 2
    ↗
16. Bruce E Kiddoo Director
    Sale
    $396K 750 shares at $528.52 16% of stake
    Traded May 28 Filed May 29
    ↗

Also filed in the last 12 months, not counted as buying or selling: 88 option exercises, 82 share withholdings for taxes, 16 stock grants, 4 gifts, and 2 other transactions.