Michael D Lambert
CIK 1077820 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 12, 2019 · Latest: Nov. 12, 2019
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 89 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
89 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 16, 2018 | WDC | S | 11,542 | $85.88 | $991,227 | 21,104 Direct | -35.36% | Disposed | 633.7% (price as of 2026-08-19) |
| Nov. 1, 2017 | WDC | S | 1,063 | $89.36 | $94,990 | 18,298 Direct | -5.49% | Disposed | 605.1% (price as of 2026-08-19) |
| Nov. 20, 2014 | WDC | S | 5,000 | $101.20 | $506,000 | 10,739 Direct | -31.77% | Disposed | 522.6% (price as of 2026-08-19) |
| Nov. 18, 2014 | WDC | S | 5,000 | $100.13 | $500,650 | 15,739 Direct | -24.11% | Disposed | 529.3% (price as of 2026-08-19) |
| Aug. 21, 2014 | WDC | S | 14,352 | $100.37 | $1,440,510 | 18,272 Direct | -43.99% | Disposed | 527.8% (price as of 2026-08-19) |
| Nov. 12, 2013 | WDC | S | 10,000 | $71.85 | $718,500 | 15,306 Direct | -39.52% | Disposed | 777.0% (price as of 2026-08-19) |
| May 9, 2013 | WDC | S | 24,107 | $57.34 | $1,382,295 | 25,093 Direct | -49.00% | Disposed | 998.9% (price as of 2026-08-19) |
| Feb. 14, 2013 | WDC | S | 21,685 | $48.85 | $1,059,312 | 25,093 Direct | -46.36% | Disposed | 1189.9% (price as of 2026-08-19) |
| Dec. 20, 2012 | WDC | S | 11,484 | $42.03 | $482,673 | 25,093 Direct | -31.40% | Disposed | 1399.2% (price as of 2026-08-19) |
| Dec. 17, 2009 | WDC | S | 30,000 | $41.85 | $1,255,500 | 21,462 Direct | -58.30% | Disposed | 1405.6% (price as of 2026-08-19) |
| Nov. 17, 2009 | WDC | S | 20,000 | $38.71 | $774,200 | 31,538 Direct | -38.81% | Disposed | 1527.8% (price as of 2026-08-19) |
Showing latest 100 of 134 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Nov. 7, 2019 | WDC | Dividend Equivalent Rights | Common Stock (203) | — | — | 203 | Disposed |
| Oct. 22, 2019 | WDC | Dividend Equivalent Rights | Common Stock (43) | — | — | 43 | Acquired |
| July 15, 2019 | WDC | Dividend Equivalent Rights | Common Stock (46) | — | — | 46 | Acquired |
| April 15, 2019 | WDC | Dividend Equivalent Rights | Common Stock (48) | — | — | 48 | Acquired |
| Jan. 14, 2019 | WDC | Dividend Equivalent Rights | Common Stock (65) | — | — | 65 | Acquired |
| Nov. 2, 2018 | WDC | Dividend Equivalent Rights | Common Stock (74) | — | — | 74 | Disposed |
| Oct. 15, 2018 | WDC | Dividend Equivalent Rights | Common Stock (25) | — | — | 25 | Acquired |
| July 16, 2018 | WDC | Dividend Equivalent Rights | Common Stock (17) | — | — | 17 | Acquired |
| May 16, 2018 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (11,542) | $25.79 | Nov. 10, 2018 | 11,542 | Disposed |
| April 16, 2018 | WDC | Dividend Equivalent Rights | Common Stock (15) | — | — | 15 | Acquired |
| Jan. 16, 2018 | WDC | Dividend Equivalent Rights | Common Stock (16) | — | — | 16 | Acquired |
| Nov. 1, 2017 | WDC | Dividend Equivalent Rights | Common Stock (99) | — | — | 99 | Disposed |
| Nov. 1, 2017 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (1,063) | $32.99 | Nov. 11, 2017 | 1,063 | Disposed |
| Oct. 16, 2017 | WDC | Dividend Equivalent Rights | Common Stock (24) | — | — | 24 | Acquired |
| July 17, 2017 | WDC | Dividend Equivalent Rights | Common Stock (22) | — | — | 22 | Acquired |
| April 17, 2017 | WDC | Dividend Equivalent Rights | Common Stock (24) | — | — | 24 | Acquired |
| Jan. 17, 2017 | WDC | Dividend Equivalent Rights | Common Stock (29) | — | — | 29 | Acquired |
| Nov. 3, 2016 | WDC | Dividend Equivalent Rights | Common Stock (140) | — | — | 140 | Disposed |
| Oct. 17, 2016 | WDC | Dividend Equivalent Rights | Common Stock (32) | — | — | 32 | Acquired |
| July 15, 2016 | WDC | Dividend Equivalent Rights | Common Stock (32) | — | — | 32 | Acquired |
| April 15, 2016 | WDC | Dividend Equivalent Rights | Common Stock (41) | — | — | 41 | Acquired |
| Jan. 15, 2016 | WDC | Dividend Equivalent Rights | Common Stock (35) | — | — | 35 | Acquired |
| Nov. 3, 2015 | WDC | Dividend Equivalent Rights | Common Stock (48) | — | — | 48 | Disposed |
| Oct. 15, 2015 | WDC | Dividend Equivalent Rights | Common Stock (14) | — | — | 14 | Acquired |
| July 15, 2015 | WDC | Dividend Equivalent Rights | Common Stock (14) | — | — | 14 | Acquired |
| April 16, 2015 | WDC | Dividend Equivalent Rights | Common Stock (11) | — | — | 11 | Acquired |
| Jan. 15, 2015 | WDC | Dividend Equivalent Rights | Common Stock (8) | — | — | 8 | Acquired |
| Nov. 10, 2014 | WDC | Dividend Equivalent Rights | Common Stock (200) | — | — | 200 | Disposed |
| Nov. 4, 2014 | WDC | Dividend Equivalent Rights | Common Stock (46) | — | — | 46 | Disposed |
| Oct. 15, 2014 | WDC | Dividend Equivalent Rights | Common Stock (38) | — | — | 38 | Acquired |
| Aug. 21, 2014 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (7,443) | $32.99 | Nov. 11, 2017 | 7,443 | Disposed |
| Aug. 21, 2014 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (6,909) | $38.53 | Nov. 11, 2016 | 6,909 | Disposed |
| July 15, 2014 | WDC | Dividend Equivalent Rights | Common Stock (32) | — | — | 32 | Acquired |
| April 15, 2014 | WDC | Dividend Equivalent Rights | Common Stock (27) | — | — | 27 | Acquired |
| Jan. 15, 2014 | WDC | Dividend Equivalent Rights | Common Stock (27) | — | — | 27 | Acquired |
| Nov. 11, 2013 | WDC | Dividend Equivalent Rights | Common Stock (96) | — | — | 96 | Disposed |
| Nov. 8, 2013 | WDC | Dividend Equivalent Rights | Common Stock (118) | — | — | 118 | Disposed |
| Oct. 15, 2013 | WDC | Dividend Equivalent Rights | Common Stock (56) | — | — | 56 | Acquired |
| July 15, 2013 | WDC | Dividend Equivalent Rights | Common Stock (56) | — | — | 56 | Acquired |
| May 9, 2013 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (16,743) | $15.34 | Nov. 6, 2015 | 16,743 | Disposed |
| May 9, 2013 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (7,364) | $27.64 | Nov. 6, 2014 | 7,364 | Disposed |
| April 15, 2013 | WDC | Dividend Equivalent Rights | Common Stock (74) | — | — | 74 | Acquired |
| Feb. 14, 2013 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (12,500) | $13.76 | Nov. 17, 2015 | 12,500 | Disposed |
| Feb. 14, 2013 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (9,185) | $19.09 | Feb. 6, 2017 | 9,185 | Disposed |
| Dec. 26, 2012 | WDC | Dividend Equivalent Rights | Common Stock (90) | — | — | 90 | Acquired |
| Nov. 11, 2012 | WDC | Dividend Equivalent Rights | Common Stock (23) | — | — | 23 | Disposed |
| Oct. 15, 2012 | WDC | Dividend Equivalent Rights | Common Stock (83) | — | — | 83 | Acquired |
| Nov. 10, 2011 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (11,542) | $25.79 | Nov. 10, 2018 | 11,542 | Acquired |
| Nov. 11, 2010 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (8,506) | $32.99 | Nov. 11, 2017 | 8,506 | Acquired |
| Dec. 17, 2009 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $9.21 | Nov. 18, 2014 | 10,000 | Disposed |
| Dec. 17, 2009 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $11.61 | Nov. 20, 2013 | 10,000 | Disposed |
| Nov. 17, 2009 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $4.40 | Aug. 1, 2012 | 10,000 | Disposed |
| Nov. 17, 2009 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $7.91 | Nov. 14, 2012 | 10,000 | Disposed |
| Nov. 11, 2009 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (6,909) | $38.53 | Nov. 11, 2016 | 6,909 | Acquired |
| Nov. 6, 2008 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (16,743) | $15.34 | Nov. 6, 2015 | 16,743 | Acquired |
| June 4, 2008 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $4.40 | Aug. 1, 2012 | 15,000 | Disposed |
| Jan. 1, 2008 | WDC | Phantom Stock | Common Stock (4,527) | $0.00 | Jan. 1, 2008 | 4,527 | Disposed |
| Nov. 6, 2007 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (7,364) | $27.64 | Nov. 6, 2014 | 7,364 | Acquired |
| Feb. 6, 2007 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (9,185) | $19.09 | Feb. 6, 2017 | 9,185 | Acquired |
| Jan. 1, 2007 | WDC | Phantom Stock | Common Stock (2,100) | $0.00 | Jan. 1, 2007 | 2,100 | Disposed |
| April 1, 2006 | WDC | Phantom Stock | Common Stock (2,100) | $0.00 | April 1, 2006 | 2,100 | Disposed |
| Dec. 23, 2005 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (20,000) | $4.40 | Aug. 1, 2012 | 20,000 | Disposed |
| Nov. 17, 2005 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (12,500) | $13.76 | Nov. 17, 2015 | 12,500 | Acquired |
| June 7, 2005 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (30,000) | $4.40 | Aug. 1, 2012 | 30,000 | Disposed |
| Jan. 1, 2005 | WDC | Phantom Stock | Common Stock (4,527) | — | Jan. 1, 2008 | 4,527 | Acquired |
| Nov. 18, 2004 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $9.21 | Nov. 18, 2014 | 10,000 | Acquired |
| Jan. 1, 2004 | WDC | Phantom Stock [F1] | Common Stock (2,100) | — | Jan. 1, 2007 | 2,100 | Acquired |
| Nov. 20, 2003 | WDC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $11.61 | Nov. 20, 2013 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).