Mark P Long

CIK 1593123 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 27, 2013 · Latest: Nov. 27, 2013

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 80 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

80 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 12, 2019 WDC S 10b5-1 17,523 $50.00 $876,150 141,221 Direct -11.04% Disposed 1160.2% (price as of 2026-08-19)
March 11, 2019 WDC S 10b5-1 100 $50.00 $5,000 158,744 Direct -0.06% Disposed 1160.2% (price as of 2026-08-19)
Aug. 6, 2018 WDC S 10b5-1 1,214 $67.65 $82,127 185,368 Direct -0.65% Disposed 831.4% (price as of 2026-08-19)
Aug. 3, 2018 WDC S 10b5-1 2,233 $68.74 $153,496 188,405 Direct -1.17% Disposed 816.7% (price as of 2026-08-19)
July 30, 2018 WDC S 10b5-1 24,938 $70.83 $1,766,359 191,025 Direct -11.55% Disposed 789.6% (price as of 2026-08-19)
March 9, 2018 WDC S 10b5-1 2,813 $98.20 $276,237 211,817 Direct -1.31% Disposed 541.7% (price as of 2026-08-19)
March 9, 2018 WDC S 10b5-1 4,213 $98.94 $416,834 207,604 Direct -1.99% Disposed 536.9% (price as of 2026-08-19)
Feb. 5, 2018 WDC S 10b5-1 4,466 $84.20 $376,037 83,917 Direct -5.05% Disposed 648.3% (price as of 2026-08-19)
Nov. 13, 2017 WDC S 10b5-1 4,467 $88.13 $393,677 83,917 Direct -5.05% Disposed 615.0% (price as of 2026-08-19)
Sept. 12, 2017 WDC S 10b5-1 1,446 $87.63 $126,713 83,917 Direct -1.69% Disposed 619.1% (price as of 2026-08-19)
Aug. 23, 2017 WDC S 10b5-1 1,517 $88.49 $134,239 86,690 Direct -1.72% Disposed 612.1% (price as of 2026-08-19)
Aug. 14, 2017 WDC S 10b5-1 1,517 $80.97 $122,831 86,690 Direct -1.72% Disposed 678.2% (price as of 2026-08-19)
Aug. 4, 2017 WDC S 10b5-1 19,777 $84.50 $1,671,156 86,690 Direct -18.58% Disposed 645.7% (price as of 2026-08-19)
July 20, 2017 WDC S 10b5-1 11,557 $94.82 $1,095,835 68,908 Direct -14.36% Disposed 564.5% (price as of 2026-08-19)
July 19, 2017 WDC S 10b5-1 17,028 $93.84 $1,597,908 80,465 Direct -17.47% Disposed 571.5% (price as of 2026-08-19)
May 15, 2017 WDC S 10b5-1 3,034 $89.54 $271,664 68,308 Direct -4.25% Disposed 603.7% (price as of 2026-08-19)
May 3, 2017 WDC S 10b5-1 11,631 $88.49 $1,029,227 68,308 Direct -14.55% Disposed 612.1% (price as of 2026-08-19)
May 1, 2017 WDC S 10b5-1 43,000 $86.77 $3,731,110 83,154 Direct -34.09% Disposed 626.2% (price as of 2026-08-19)
May 1, 2017 WDC S 10b5-1 14,446 $87.74 $1,267,492 68,708 Direct -17.37% Disposed 618.2% (price as of 2026-08-19)
May 1, 2017 WDC S 10b5-1 400 $88.28 $35,312 68,308 Direct -0.58% Disposed 613.8% (price as of 2026-08-19)

Showing latest 100 of 194 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
April 15, 2019 WDC Dividend Equivalent Rights Common Stock (1,111) — — 1,111 Acquired
March 7, 2019 WDC Dividend Equivalent Rights Common Stock (8,603) — — 8,603 Disposed
March 7, 2019 WDC Dividend Equivalent Rights Common Stock (1,240) — — 1,240 Disposed
Jan. 14, 2019 WDC Dividend Equivalent Rights Common Stock (3,226) — — 3,226 Acquired
Oct. 15, 2018 WDC Dividend Equivalent Rights Common Stock (2,232) — — 2,232 Acquired
Aug. 3, 2018 WDC Dividend Equivalent Rights Common Stock (204) — — 204 Disposed
Aug. 3, 2018 WDC Employee Stock Option (right to buy) Common Stock (2,233) $44.78 Aug. 3, 2023 2,233 Disposed
Aug. 2, 2018 WDC Dividend Equivalent Rights Common Stock (129) — — 129 Disposed
July 30, 2018 WDC Employee Stock Option (right to buy) Common Stock (2,234) $44.78 Aug. 3, 2023 2,234 Disposed
July 25, 2018 WDC Dividend Equivalent Rights Common Stock (2,344) — — 2,344 Disposed
July 16, 2018 WDC Dividend Equivalent Rights Common Stock (1,744) — — 1,744 Acquired
July 16, 2018 WDC Dividend Equivalent Rights Common Stock (272) — — 272 Disposed
July 1, 2018 WDC Dividend Equivalent Rights Common Stock (1,448) — — 1,448 Disposed
June 30, 2018 WDC Dividend Equivalent Rights Common Stock (1,965) — — 1,965 Disposed
April 16, 2018 WDC Dividend Equivalent Rights Common Stock (1,503) — — 1,503 Acquired
March 7, 2018 WDC Dividend Equivalent Rights Common Stock (848) — — 848 Disposed
March 6, 2018 WDC Dividend Equivalent Rights Common Stock (4,147) — — 4,147 Acquired
Feb. 5, 2018 WDC Employee Stock Option (right to buy) Common Stock (4,466) $44.78 Aug. 3, 2023 4,466 Disposed
Jan. 16, 2018 WDC Dividend Equivalent Rights Common Stock (1,124) — — 1,124 Acquired
Nov. 13, 2017 WDC Employee Stock Option (right to buy) Common Stock (4,467) $44.78 Aug. 3, 2023 4,467 Disposed
Oct. 16, 2017 WDC Dividend Equivalent Rights Common Stock (1,080) — — 1,080 Acquired
Sept. 11, 2017 WDC Dividend Equivalent Rights Common Stock (249) — — 249 Disposed
Aug. 23, 2017 WDC Employee Stock Option (right to buy) Common Stock (1,517) $68.49 Aug. 14, 2020 1,517 Disposed
Aug. 14, 2017 WDC Employee Stock Option (right to buy) Common Stock (1,517) $68.49 Aug. 14, 2020 1,517 Disposed
Aug. 4, 2017 WDC Employee Stock Option (right to buy) Common Stock (17,867) $44.78 Aug. 3, 2023 17,867 Disposed
Aug. 3, 2017 WDC Dividend Equivalent Rights Common Stock (108) — — 108 Disposed
July 19, 2017 WDC Dividend Equivalent Rights Common Stock (1,546) — — 1,546 Disposed
July 17, 2017 WDC Dividend Equivalent Rights Common Stock (904) — — 904 Acquired
July 17, 2017 WDC Dividend Equivalent Rights Common Stock (187) — — 187 Disposed
July 1, 2017 WDC Dividend Equivalent Rights Common Stock (2,090) — — 2,090 Disposed
May 15, 2017 WDC Employee Stock Option (right to buy) Common Stock (3,034) $68.49 Aug. 14, 2020 3,034 Disposed
May 3, 2017 WDC Employee Stock Option (right to buy) Common Stock (11,631) $68.49 Aug. 14, 2020 11,631 Disposed
May 1, 2017 WDC Employee Stock Option (right to buy) Common Stock (15,774) $48.63 Feb. 13, 2020 15,774 Disposed
May 1, 2017 WDC Employee Stock Option (right to buy) Common Stock (11,632) $68.49 Aug. 14, 2020 11,632 Disposed
April 17, 2017 WDC Dividend Equivalent Rights Common Stock (1,010) — — 1,010 Acquired
Jan. 17, 2017 WDC Dividend Equivalent Rights Common Stock (1,178) — — 1,178 Acquired
Oct. 17, 2016 WDC Dividend Equivalent Rights Common Stock (1,572) — — 1,572 Acquired
Sept. 11, 2016 WDC Dividend Equivalent Rights Common Stock (597) — — 597 Disposed
Aug. 14, 2016 WDC Dividend Equivalent Rights Common Stock (622) — — 622 Disposed
Aug. 3, 2016 WDC Employee Stock Option (right to buy) Common Stock (71,466) $44.78 Aug. 3, 2023 71,466 Acquired
July 22, 2016 WDC Dividend Equivalent Rights Common Stock (437) — — 437 Disposed
July 22, 2016 WDC Dividend Equivalent Rights Common Stock (437) — — 437 Disposed
July 15, 2016 WDC Dividend Equivalent Rights Common Stock (910) — — 910 Acquired
April 15, 2016 WDC Dividend Equivalent Rights Common Stock (1,147) — — 1,147 Acquired
Feb. 13, 2016 WDC Dividend Equivalent Rights Common Stock (270) — — 270 Disposed
Jan. 15, 2016 WDC Dividend Equivalent Rights Common Stock (1,022) — — 1,022 Acquired
Oct. 19, 2015 WDC Employee Stock Option (right to buy) Common Stock (878) $48.63 Feb. 13, 2020 878 Disposed
Oct. 15, 2015 WDC Dividend Equivalent Rights Common Stock (591) — — 591 Acquired
Sept. 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
Sept. 11, 2015 WDC Dividend Equivalent Rights Common Stock (56) — — 56 Disposed
Aug. 17, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
Aug. 14, 2015 WDC Dividend Equivalent Rights Common Stock (287) — — 287 Disposed
July 15, 2015 WDC Dividend Equivalent Rights Common Stock (236) — — 236 Acquired
July 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
June 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
May 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
May 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (1,011) $68.49 Aug. 14, 2020 1,011 Disposed
April 16, 2015 WDC Dividend Equivalent Rights Common Stock (189) — — 189 Acquired
April 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (878) $48.63 Feb. 13, 2020 878 Disposed
April 15, 2015 WDC Employee Stock Option (right to buy) Common Stock (1,012) $68.49 Aug. 14, 2020 1,012 Disposed
March 17, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
March 17, 2015 WDC Employee Stock Option (right to buy) Common Stock (1,011) $68.49 Aug. 14, 2020 1,011 Disposed
Feb. 17, 2015 WDC Employee Stock Option (right to buy) Common Stock (876) $48.63 Feb. 13, 2020 876 Disposed
Feb. 17, 2015 WDC Employee Stock Option (right to buy) Common Stock (1,011) $68.49 Aug. 14, 2020 1,011 Disposed
Feb. 13, 2015 WDC Dividend Equivalent Rights Common Stock (141) — — 141 Disposed
Jan. 15, 2015 WDC Dividend Equivalent Rights Common Stock (158) — — 158 Acquired
Nov. 18, 2014 WDC Employee Stock Option (right to buy) Common Stock (3,034) $68.49 Aug. 14, 2020 3,034 Disposed
Nov. 14, 2014 WDC Employee Stock Option (right to buy) Common Stock (2,629) $48.63 Feb. 13, 2020 2,629 Disposed
Oct. 15, 2014 WDC Dividend Equivalent Rights Common Stock (193) — — 193 Acquired
Sept. 11, 2014 WDC Employee Stock Option (right to buy) Common Stock (27,373) $100.06 Sept. 11, 2021 27,373 Acquired
Aug. 14, 2014 WDC Employee Stock Option (right to buy) Common Stock (2,629) $48.63 Feb. 13, 2020 2,629 Disposed
Aug. 14, 2014 WDC Employee Stock Option (right to buy) Common Stock (12,137) $68.49 Aug. 14, 2020 12,137 Disposed
July 15, 2014 WDC Dividend Equivalent Rights Common Stock (104) — — 104 Acquired
May 14, 2014 WDC Employee Stock Option (right to buy) Common Stock (2,629) $48.63 Feb. 13, 2020 2,629 Disposed
April 15, 2014 WDC Dividend Equivalent Rights Common Stock (86) — — 86 Acquired
Feb. 14, 2014 WDC Employee Stock Option (right to buy) Common Stock (10,517) $48.63 Feb. 13, 2020 10,517 Disposed
Feb. 13, 2014 WDC Dividend Equivalent Rights Common Stock (69) — — 69 Disposed
Jan. 15, 2014 WDC Dividend Equivalent Rights Common Stock (101) — — 101 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Nov. 27, 2013 WDC Common Stock 29,662 Direct
Nov. 27, 2013 WDC Dividend Equivalent Rights→ Common Stock (222) 222 Direct
Nov. 27, 2013 WDC Employee Stock Option (right to buy)→ Common Stock (42,066) 42,066 Direct
Nov. 27, 2013 WDC Employee Stock Option (right to buy)→ Common Stock (48,547) 48,547 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

WDC

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2016 $500,000 — $3,473,956 — $180,625 — $7,592 $4,162,173

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.