Western Digital (WDC) insider buying and selling
Every Table I transaction reported by directors and officers of S&P 500 companies on SEC Form 4 filings (2 business days to file): each row labeled with its official transaction code, nothing filtered out beforehand.
Open-market purchases (code P) are the rare signal, in green; sales (code S) are common and often pre-scheduled (10b5-1). Table II (derivatives) is not included: its prices are exercise prices, not market values. Guide: insider buying.
| Date | Ticker | Insider | Role | Shares | Price | Amount | % of stake | Type / filing |
|---|
Download these transactions as CSV No account, no sign-up. The data is public: it comes from SEC Form 4 filings.
Western Digital Corporation (WDC) insider buying and selling: no purchases, 51 sales
281 Form 4 Table I transactions filed with the SEC by Western Digital Corporation insiders between 2025-08-25 and 2026-09-21 (15-month history): 0 open-market purchases and 51 sales, plus 230 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $9.6M by Massengill Matthew E on 2026-02-05.
Western Digital insider buying and selling over the last 12 months
Between Oct 21, 2025 and Oct 20, 2026, Western Digital insiders filed 45 sales worth $74.9M on the open market, and no purchases.
The biggest seller was Tan Irving (Chief Executive Officer): $25.3M in 4 sales, out of 10 different sellers.
The largest trade of the period was a sale of $9.6M on Feb 5, 2026, by Massengill Matthew E (Director), under a 10b5-1 plan. Form 4 on sec.gov (0001266824-26-000008).
Of the 45 sales, 30 (67%, $56.0M) carry the 10b5-1 plan flag on the Form 4, meaning they were scheduled months ahead; the other 15 do not.
The last three months show 12 sales, against 12 in the three before. The latest sale from Sep 4, 2026.
Against its sector (Technology, 85 companies with an insider page on this site), over the same dates the median is 22 sales and 0 purchases on the open market. Western Digital has more sales than 67 of the other 84, ranks 36 of 85 by net dollars sold, and 32 of the 85 have at least one purchase.
The 20 most important trades
With no open-market purchases, the table starts with WDC's sales, largest first. The full history is in the tool above, already searched.
See all 281 WDC trades in the full history →
| Trade date | Filed | Insider | Role | Amount | Code | Filing |
|---|---|---|---|---|---|---|
| 2026-02-05 | 2026-02-06 | Massengill Matthew E | Director | $9.6M | S — Open-market sale (scheduled 10b5-1) Indirect holding, through: By Family Trust 12 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 6, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $256.12 to a high of $257.09. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $257.14 to a high of $258.13. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $258.14 to a high of $259.13. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $259.15 to a high of $260.12. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $260.15 to a high of $261.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $261.19 to a high of $262.18. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $262.21 to a high of $263.14. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $263.40 to a high of $264.38. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $264.54 to a high of $265.51. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $265.57 to a high of $266.27. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $267.58 to a high of $268.53. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-08-11 | 2026-08-12 | Tan Irving | Chief Executive Officer | $8.9M | S — Open-market sale (scheduled 10b5-1)8 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 5, 2026. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $440.77 to a high of $441.66. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $441.94 to a high of $442.73. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $443.00 to a high of $443.91. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $444.00 to a high of $444.94. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $445.00 to a high of $445.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $446.00 to a high of $446.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $447.00 to a high of $447.88. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-05-01 | 2026-05-05 | Tan Irving | Chief Executive Officer | $8.2M | S — Open-market sale (scheduled 10b5-1)10 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 12, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $405.6950 to a high of $406.6800. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $406.8100 to a high of $407.5300. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $407.8150 to a high of $408.5900. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $409.0000 to a high of $409.9900. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $410.1600 to a high of $411.1500. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $411.3750 to a high of $412.3500. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $412.4800 to a high of $413.4750. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $413.4800 to a high of $414.2000. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $414.6700 to a high of $415.4200. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-02-02 | 2026-02-04 | Tan Irving | Chief Executive Officer | $5.1M | S — Open-market sale (scheduled 10b5-1)15 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 12, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $242.02 to a high of $242.68. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $243.29 to a high of $243.52. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $244.66 to a high of $245.29. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $246.98 to a high of $247.82. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $248.24 to a high of $249.16. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $249.39 to a high of $249.58. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $252.00 to a high of $252.68. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $256.25 to a high of $257.19. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $257.29 to a high of $258.20. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $258.29 to a high of $258.96. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $259.40 to a high of $260.35. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F13 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $260.45 to a high of $261.37. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F14 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $261.50 to a high of $262.41. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F15 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $250.62 to a high of $250.80. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-05-11 | 2026-05-12 | Davis Brian Scott | Chief Sales & Mrktng Officer | $5.0M | S — Open-market sale (scheduled 10b5-1)16 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 3, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $488.9450 to a high of $489.9200. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $490.0000 to a high of $490.6500. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $491.1050 to a high of $491.1900. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $492.8600 to a high of $493.8550. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $497.0900 to a high of $497.3950. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $498.6450 to a high of $499.6300. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $499.6500 to a high of $500.6000. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $500.7800 to a high of $501.7300. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $501.8600 to a high of $502.7000. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $503.0000 to a high of $503.9300. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $504.0000 to a high of $504.7800. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F13 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $505.0000 to a high of $505.4200. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F14 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $506.5000 to a high of $507.3000. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F15 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $508.6800 to a high of $509.6500. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F16 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $509.8600 to a high of $510.3800. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2025-11-03 | 2025-11-05 | Tan Irving | Chief Executive Officer | $3.0M | S — Open-market sale (scheduled 10b5-1)7 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 12, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $148.38 to a high of $149.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $149.40 to a high of $150.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $150.50 to a high of $151.335. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $151.655 to a high of $152.30. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $152.73 to a high of $153.72. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $153.75 to a high of $154.30. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-02-17 | 2026-02-19 | Davis Brian Scott | Chief Sales & Mrktng Officer | $2.8M | S — Open-market sale (scheduled 10b5-1)13 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 3, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $272.3250 to a high of $273.31. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $273.62 to a high of $274.4950. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $274.69 to a high of $275.5850. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $275.76 to a high of $276.55. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $276.81 to a high of $277.75. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $277.93 to a high of $278.71. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $279.12 to a high of $280.00. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $280.29 to a high of $281.21. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $281.34 to a high of $282.19. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $282.35 to a high of $282.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $283.65 to a high of $284.21. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F13 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $284.96 to a high of $285.35. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-03-04 | 2026-03-05 | Gubbi Vidyadhara K | Chief of Global Operations | $2.7M | S — Open-market sale | SEC |
| 2026-03-04 | 2026-03-05 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | $2.5M | S — Open-market sale (scheduled 10b5-1)2 Form 4 footnotesF3 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 23, 2025. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $269.17 to a high of $269.2201. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2025-12-04 | 2025-12-08 | Gubbi Vidyadhara K | Chief of Global Operations | $2.2M | S — Open-market sale2 Form 4 footnotesF1 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $159.81 to a high of $160.3009. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F2 Includes 503 shares acquired under the Issuer's Employee Stock Purchase Plan on November 30, 2025. | SEC |
| 2026-03-06 | 2026-03-10 | Gubbi Vidyadhara K | Chief of Global Operations | $2.2M | S — Open-market sale | SEC |
| 2026-05-04 | 2026-05-05 | Gubbi Vidyadhara K | Chief of Global Operations | $2.1M | S — Open-market sale | SEC |
| 2026-02-06 | 2026-02-06 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | $1.8M | S — Open-market sale | SEC |
| 2026-08-31 | 2026-09-02 | Streeter Stephanie A | Director | $1.8M | S — Open-market sale Indirect holding, through: By Family Trust | SEC |
| 2026-07-28 | 2026-07-29 | Cole Martin I | Director | $1.7M | S — Open-market sale (scheduled 10b5-1)31 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $423.42 to a high of $424.39. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $425.15 to a high of $425.47. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $426.24 to a high of $426.98. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $427.48 to a high of $428.41. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $428.66 to a high of $429.49. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $429.79 to a high of $430.74. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $430.84 to a high of $431.80. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $432.06 to a high of $432.34. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $433.24 to a high of $434.16. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $434.41 to a high of $435.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $435.51 to a high of $435.66. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F13 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $436.54 to a high of $437.49. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F14 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $437.71 to a high of $438.68. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F15 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $439.12 to a high of $439.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F16 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $440.67 to a high of $441.46. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F17 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $442.06 to a high of $442.88. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F18 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $444.09 to a high of $444.93. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F19 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $446.73 to a high of $447.46. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F20 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $447.99 to a high of $448.97. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F21 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $448.99 to a high of $449.95. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F22 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $450.60 to a high of $451.56. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F23 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $451.61 to a high of $452.47. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F24 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $452.75 to a high of $453.69. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F25 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $453.92 to a high of $454.91. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F26 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $455.03 to a high of $456.02. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F27 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $456.05 to a high of $457.00. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F28 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $457.23 to a high of $457.87. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F29 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $458.37 to a high of $459.33. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F30 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $459.74 to a high of $460.53. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F31 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $460.94 to a high of $461.89. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-06-09 | 2026-06-11 | Cole Martin I | Director | $1.7M | S — Open-market sale (scheduled 10b5-1)27 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $483.99 to a high of $484.57. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $486.54 to a high of $487.31. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $490.99 to a high of $491.43. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $491.99 to a high of $492.88. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $493.02 to a high of $493.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $494.18 to a high of $495.07. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $497.11 to a high of $497.69. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $498.49 to a high of $499.18. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $501.34 to a high of $502.26. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $502.49 to a high of $503.39. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $503.52 to a high of $504.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F13 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $504.99 to a high of $505.95. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F14 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $507.51 to a high of $508.25. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F15 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $508.67 to a high of $509.38. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F16 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $510.20 to a high of $511.11. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F17 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $511.22 to a high of $512.18. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F18 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $512.66 to a high of $513.65. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F19 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $513.81 to a high of $514.62. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F20 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $514.95 to a high of $515.86. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F21 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $515.99 to a high of $516.91. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F22 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $517.17 to a high of $518.16. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F23 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $518.90 to a high of $519.79. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F24 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $520.76 to a high of $521.59. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F25 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $522.98 to a high of $523.48. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F26 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $524.19 to a high of $525.01. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F27 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $526.82 to a high of $527.60. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-03-02 | 2026-03-03 | Cole Martin I | Director | $1.6M | S — Open-market sale (scheduled 10b5-1)12 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 1, 2025. F2 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $265.50 to a high of $266.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $267.34 to a high of $268.31. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $268.36 to a high of $269.35. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $269.36 to a high of $270.14. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $271.19 to a high of $272.09. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $272.20 to a high of $273.14. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $273.28 to a high of $273.85. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $274.47 to a high of $275.10. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $276.06 to a high of $276.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $278.73 to a high of $278.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $280.44 to a high of $280.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2025-11-05 | 2025-11-06 | Cole Martin I | Director | $1.6M | S — Open-market sale (scheduled 10b5-1)12 Form 4 footnotesF1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 1, 2025. F2 Includes 1,701 additional stock units acquired by the Reporting Person in connection with the Issuer's spin-off (the "Spin-Off") of a then-wholly owned subsidiary of the Issuer on February 21, 2025. Pursuant to an Employee Matters Agreement, at the effective time of the Spin-Off, each outstanding Issuer stock unit was adjusted and converted into additional stock units based on the equity conversion ratio of 1.452526 per every Issuer stock unit. F3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $155.5927 to a high of $156.51. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F4 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $156.59 to a high of $157.58. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F5 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $157.59 to a high of $158.55. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F6 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $158.60 to a high of $159.54. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F7 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $159.69 to a high of $160.6804. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F8 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $160.70 to a high of $161.69. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F9 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $161.70 to a high of $162.69. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F10 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $162.70 to a high of $163.68. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F11 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $163.70 to a high of $164.68. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. F12 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $164.71 to a high of $165.35. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2025-12-05 | 2025-12-08 | Gubbi Vidyadhara K | Chief of Global Operations | $1.5M | S — Open-market saleForm 4 footnoteF3 Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $167.2999 to a high of $168.19. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | SEC |
| 2026-06-01 | 2026-06-02 | Gubbi Vidyadhara K | Chief of Global Operations | $1.4M | S — Open-market sale | SEC |
The period balance: money in, money out
In the Form 4 filings submitted between Aug 25, 2025 and Sep 21, 2026 there is not one open-market purchase of Western Digital Corporation: 51 sales worth $77.5M and zero dollars bought.
Only codes P and S count, where an insider puts in or takes out their own money. A selling balance like Western Digital Corporation's is the norm in the S&P 500, where much of the pay comes as stock. It is not a recommendation to buy or sell: it is what was filed.
Every transaction, code by code
| Code | What it means | Trades | Reported amount |
|---|---|---|---|
| M | Option exercise | 104 | $0 |
| F | Tax withholding (shares surrendered for taxes) | 98 | $57.4M |
| S | Open-market sale | 51 | $77.5M |
| A | Grant or award | 22 | $0 |
| G | Gift | 4 | $0 |
| J | Other transaction (explained in the filing) | 2 | $0 |
| Total | Everything filed in the period | 281 | $134.9M |
132 of the 281 rows carry no usable amount on the Form 4: they count as trades and add $0. The code labels come from the SEC index.
Who has traded
Over the 15 months of history, 16 distinct people or entities have filed Western Digital Corporation transactions: none bought on the open market and 11 sold. Counted by CIK, the fixed number the SEC gives each filer, and not by name, which each filer types their own way.
Of the 11 who sold on the open market (51 sales in all), the three biggest sellers account for $48.8M of the $77.5M: 63% of the money in three people.
| Filer | Role | Transactions | Bought (count) | Sold (count) | Last filed |
|---|---|---|---|---|---|
| Tan Irving | Chief Executive Officer | 52 | — | $25.3M (4) | 2026-09-21 |
| Gubbi Vidyadhara K | Chief of Global Operations | 50 | — | $13.9M (8) | 2026-09-08 |
| Massengill Matthew E | Director | 2 | — | $9.6M (1) | 2026-02-06 |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | 67 | — | $8.5M (19) | 2026-09-08 |
| Cole Martin I | Director | 9 | — | $8.1M (7) | 2026-07-29 |
| Davis Brian Scott | Chief Sales & Mrktng Officer | 52 | — | $7.8M (2) | 2026-09-21 |
| Streeter Stephanie A | Director | 4 | — | $2.5M (2) | 2026-09-02 |
| Alexy Kimberly | Director | 4 | — | $592k (2) | 2025-12-08 |
Shown here are the 8 who moved the most money, out of 16. The rest are in the full history, one link above. The name links to all their trades, in any company. "Transactions" counts any code; the money, open market only. Role: from their latest filing.
Month by month
By the month the trade was executed, not the month it was filed; months with no trades show zero. The busiest month was Feb 2026: 0 purchases and 7 sales, worth $19.5M. 2 of the 15 months have none.
| Month | Purchases | Amount | Sales | Amount |
|---|---|---|---|---|
| Aug 2025 | 0 | $0 | 5 | $1.5M |
| Sep 2025 | 0 | $0 | 1 | $1.0M |
| Oct 2025 | 0 | $0 | 0 | $0 |
| Nov 2025 | 0 | $0 | 4 | $5.2M |
| Dec 2025 | 0 | $0 | 5 | $5.5M |
| Jan 2026 | 0 | $0 | 1 | $102k |
| Feb 2026 | 0 | $0 | 7 | $19.5M |
| Mar 2026 | 0 | $0 | 4 | $9.0M |
| Apr 2026 | 0 | $0 | 1 | $137k |
| May 2026 | 0 | $0 | 7 | $16.0M |
| Jun 2026 | 0 | $0 | 4 | $3.7M |
| Jul 2026 | 0 | $0 | 3 | $2.2M |
| Aug 2026 | 0 | $0 | 6 | $11.8M |
| Sep 2026 | 0 | $0 | 3 | $1.7M |
| Oct 2026 | 0 | $0 | 0 | $0 |
The last month may be partial: a Form 4 is filed up to two business days later. The table does not say whether the pattern is good or bad; it says when it happened.
Western Digital Corporation (WDC) analysis page →
Other Technology companies with insider trades
All 500 are listed in the section index →
Which insiders are buying their own company stock →
How to read this data
12 of the 20 sales in the table are flagged as scheduled (10b5-1 plan): signed months ahead and executed automatically, so they say nothing about what the insider thinks today. Western Digital has no open-market purchase (code P) in the history, the most common case in the S&P 500: insiders are already paid in stock. The latest filing is from Sep 21, 2026, and a Form 4 arrives up to two business days after the trade.
14 of the 20 rows in the table carry footnotes from the Form 4 itself, folded into the code column and copied verbatim; a row with no footnote means the filing has none.
Guide: Insider buying · all guides
What is behind these trades
The concepts on this page, explained from scratch in the Academy. Free, no account.
- What the efficiency hypothesis says and what it does NOT sayIf an insider's purchase is public and anyone can read it, is there any information left in it? That is the exact question that brings people here.
- Who really moves the market: the types of investorWho sits on the other side of each order, and where a company's own insiders fit among them.
- Supply, demand and price: why it rises and falls constantlyHow a piece of news ends up inside the price, and why the reaction to a filed sale is rarely the one you would expect.
Source: SEC EDGAR Form 4. This is a list of public facts, not financial advice or a recommendation to buy or sell.