Who
Matthew E. Massengill
Director
Company insider
Files Form 4 as: Chairman of the Board, Western Digital; Director, Sandisk; Director, Microsemi; Director, GT Advanced Technologies; Director, Conexant Systems; Director, Viewsonic.
In numbers
- Trades disclosed
- 399
- Buys
- 0
- Sells
- 30
- Bought
- $0
- Sold
- $61.4M
- Companies
- 6
- Companies where not an officer
- 5
- First trade
- 31 Jan 2006
- Last trade
- 17 Sep 2026
- Last filed
- 21 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 17 Sep 2026filed 21 Sep 2026 | WDC Western Digitaloption or derivative · Hardware, Devices & Storage | SEC FORM 4 Code A | —10.265 at $0.00 | filing |
| 17 Sep 2026filed 21 Sep 2026 | WDC Western Digitaloption or derivative · Hardware, Devices & Storage | SEC FORM 4 Code A | —10.27 at $0.00 | filing |
| 17 Jun 2026filed 22 Jun 2026 | WDC Western Digitaloption or derivative · Hardware, Devices & Storage | SEC FORM 4 Code A | —6.109 at $0.00 | filing |
| 17 Jun 2026filed 22 Jun 2026 | WDC Western Digitaloption or derivative · Hardware, Devices & Storage | SEC FORM 4 Code A | —6.11 at $0.00 | filing |
| 18 Mar 2026filed 19 Mar 2026 | WDC Western Digitaloption or derivative · Hardware, Devices & Storage | SEC FORM 4 Code A | —11.885 at $0.00 | filing |
| 18 Mar 2026filed 19 Mar 2026 | WDC Western Digitaloption or derivative · Hardware, Devices & Storage | SEC FORM 4 Code A | —11.88 at $0.00 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $667K2,600 at $256.63 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $244K916 at $265.92 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $107K400 at $268.06 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.1M4,411 at $257.69 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.8M7,000 at $258.67 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.3M4,915 at $259.59 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.6M5,987 at $260.57 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $941K3,597 at $261.71 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $604K2,300 at $262.77 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $686K2,600 at $264.01 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $667K2,600 at $256.63 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.1M4,411 at $257.69 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.8M7,000 at $258.67 | filing |
| 5 Feb 2026filed 6 Feb 2026 | WDC Western DigitalHardware, Devices & Storage | SEC FORM 4 Sold | $1.3M4,915 at $259.59 | filing |
News
Western Digital (NASDAQ:WDC) Stock Jumps 4.7% – Should You Buy?WDC · dailypolitical.com · 19 Oct 2026Western Digital: The Fundamentals Of A Cycle Top (NASDAQ:WDC)WDC · seekingalpha.com · 16 Oct 2026Financial Analysis: TransAct Technologies (NASDAQ:TACT) versus Western Digital (NASDAQ:WDC)WDC · tickerreport.com · 15 Oct 2026
0 headlines in the last 90 days name Matthew E. Massengill; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.