Matthew E Massengill insider trades: Western Digital (WDC) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Matthew reports to the SEC
and 1 more company
Open-market buys and sales
30 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 5, 2026 | WDC | ↓ Sell | 36,926 | $260.43 | $9.6M | By Family Trust | Feb 6, 2026 (1d) |
| Nov 8, 2019 | WDC | ↓ Sell | 3,110 | $52.17 | $162K | Direct | Nov 12, 2019 (4d) |
| Nov 5, 2018 | WDC | ↓ Sell | 1,681 | $47.68 | $80K | Direct | Nov 6, 2018 (1d) |
| Nov 8, 2017 | WDC | ↓ Sell | 2,677 | $86.53 | $232K | Direct | Nov 9, 2017 (1d) |
| Feb 15, 2017 | MSCC | ↓ Sell | 1,868 | $53.77 | $100K | Direct | Feb 16, 2017 (1d) |
| Nov 7, 2016 | WDC | ↓ Sell | 2,187 | $57.31 | $125K | Direct | Nov 8, 2016 (1d) |
| Feb 11, 2016 | MSCC | ↓ Sell | 2,468 | $29.62 | $73K | Direct | Feb 11, 2016 (0d) |
| Nov 19, 2015 | MSCC | ↓ Sell | 40,000 | $36.61 | $1.5M | Direct | Nov 23, 2015 (4d) |
| Nov 6, 2015 | WDC | ↓ Sell | 1,187 | $67.75 | $80K | Direct | Nov 10, 2015 (4d) |
| Feb 12, 2015 | WDC | ↓ Sell | 5,733 | $107.21 | $615K | Direct | Feb 17, 2015 (5d) |
| Feb 12, 2015 | WDC | ↓ Sell | 3,507 | $107.36 | $377K | by IRA | Feb 17, 2015 (5d) |
| Feb 11, 2015 | MSCC | ↓ Sell | 2,694 | $30.02 | $81K | By Revocable Living Trust | Feb 12, 2015 (1d) |
| Nov 11, 2014 | WDC | ↓ Sell | 2,639 | $97.18 | $256K | Direct | Nov 12, 2014 (1d) |
| Nov 5, 2014 | WDC | ↓ Sell | 1,575 | $100.62 | $158K | Direct | Nov 6, 2014 (1d) |
| Nov 15, 2013 | WDC | ↓ Sell | 33,953 | $74.52 | $2.5M | Direct | Nov 19, 2013 (4d) |
| Mar 18, 2013 | WDC | ↓ Sell | 25,899 | $49.91 | $1.3M | Direct | Mar 20, 2013 (2d) |
| Dec 7, 2012 | WDC | ↓ Sell | 45,000 | $37.44 | $1.7M | Direct | Dec 10, 2012 (3d) |
| Dec 6, 2012 | MSCC | ↓ Sell | 26,825 | $19.99 | $536K | Direct | Dec 7, 2012 (1d) |
| Aug 17, 2012 | MSCC | ↓ Sell | 20,000 | $20.80 | $416K | Direct | Aug 20, 2012 (3d) |
| Nov 4, 2009 | WDC | ↓ Sell | 17,500 | $34.80 | $609K | Direct | Nov 6, 2009 (2d) |
| Jun 4, 2008 | WDC | ↓ Sell | 59,900 | $38.04 | $2.3M | Direct | Jun 5, 2008 (1d) |
| Jun 4, 2008 | WDC | ↓ Sell | 40,100 | $38.28 | $1.5M | Direct | Jun 5, 2008 (1d) |
| Feb 21, 2008 | WDC | ↓ Sell | 30,550 | $30.75 | $939K | Direct | Feb 22, 2008 (1d) |
| Nov 7, 2007 | WDC | ↓ Sell | 68,900 | $28.12 | $1.9M | Direct | Nov 7, 2007 (0d) |
| Nov 7, 2007 | WDC | ↓ Sell | 39,800 | $28.02 | $1.1M | Direct | Nov 7, 2007 (0d) |
| Nov 6, 2007 | WDC | ↓ Sell | 415,400 | $28.04 | $11.6M | Direct | Nov 7, 2007 (1d) |
| Jan 30, 2007 | WDC | ↓ Sell | 300,000 | $19.43 | $5.8M | Direct | Jan 31, 2007 (1d) |
| Jan 31, 2006 | WDC | ↓ Sell | 274,684 | $21.81 | $6.0M | Direct | Feb 1, 2006 (1d) |
| Dec 22, 2005 | WDC | ↓ Sell | 327,256 | $18.87 | $6.2M | Direct | Dec 23, 2005 (1d) |
| Nov 30, 2005 | WDC | ↓ Sell | 342,271 | $14.95 | $5.1M | Direct | Dec 2, 2005 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other WDC insiders
Open-market trades in the last 12 months
About Matthew E Massengill's insider trades
Matthew E Massengill is a director at Western Digital (WDC). Since Nov 30, 2005, Matthew has reported no open-market purchases and 30 sales worth $63.1M on SEC Form 4. In the last 12 months: 1 sale ($9.6M).
Their filings also include grants and awards (85 filings), option exercises (34 filings), shares returned to the company (5 filings), gifts (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every WDC insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.