Matthew J Cox

CIK 1206911 · View on SEC EDGAR ↗

Insider

First SEC filing: June 9, 2026 · Latest: June 9, 2026

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Insider transactions

0 buys (P) 12 sells (S) Net: $-5,828,033 + 37 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

37 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
July 29, 2026 MATX S 10b5-1 7,317 $199.81 $1,462,010 239,296 Direct -2.97% Disposed 8.7% (price as of 2026-08-20)
July 29, 2026 MATX S 10b5-1 1,172 $198.61 $232,771 246,613 Direct -0.47% Disposed 9.4% (price as of 2026-08-20)
July 29, 2026 MATX S 10b5-1 1,163 $200.56 $233,251 247,785 Direct -0.47% Disposed 8.3% (price as of 2026-08-20)
July 29, 2026 MATX S 10b5-1 348 $201.43 $70,098 248,948 Direct -0.14% Disposed 7.8% (price as of 2026-08-20)
June 29, 2026 MATX S 10b5-1 4,199 $193.65 $813,136 249,296 Direct -1.66% Disposed 12.2% (price as of 2026-08-20)
June 29, 2026 MATX S 10b5-1 3,054 $192.89 $589,086 253,495 Direct -1.19% Disposed 12.6% (price as of 2026-08-20)
June 29, 2026 MATX S 10b5-1 2,747 $191.81 $526,902 256,549 Direct -1.06% Disposed 13.2% (price as of 2026-08-20)
June 8, 2026 MATX S 10b5-1 6,151 $190.39 $1,171,089 259,296 Direct -2.32% Disposed 14.1% (price as of 2026-08-20)
June 8, 2026 MATX S 10b5-1 1,456 $191.10 $278,242 265,447 Direct -0.55% Disposed 13.7% (price as of 2026-08-20)
June 8, 2026 MATX S 10b5-1 1,311 $188.44 $247,045 266,903 Direct -0.49% Disposed 15.3% (price as of 2026-08-20)
June 8, 2026 MATX S 10b5-1 935 $189.35 $177,042 268,214 Direct -0.35% Disposed 14.7% (price as of 2026-08-20)
June 8, 2026 MATX S 10b5-1 147 $186.13 $27,361 269,149 Direct -0.05% Disposed 16.7% (price as of 2026-08-20)
Sept. 30, 2024 MATX S 10b5-1 90 $144.55 $13,010 215,307 Direct -0.04% Disposed 50.3% (price as of 2026-08-20)
Sept. 30, 2024 MATX S 10b5-1 1,560 $142.94 $222,986 213,747 Direct -0.72% Disposed 51.9% (price as of 2026-08-20)
Sept. 30, 2024 MATX S 10b5-1 4,849 $144.09 $698,692 208,898 Direct -2.27% Disposed 50.7% (price as of 2026-08-20)
Aug. 30, 2024 MATX S 10b5-1 3,637 $137.54 $500,233 219,260 Direct -1.63% Disposed 57.9% (price as of 2026-08-20)
Aug. 30, 2024 MATX S 10b5-1 3,863 $136.83 $528,574 215,397 Direct -1.76% Disposed 58.7% (price as of 2026-08-20)
July 31, 2024 MATX S 10b5-1 1,590 $132.15 $210,118 228,807 Direct -0.69% Disposed 64.4% (price as of 2026-08-20)
July 31, 2024 MATX S 10b5-1 1,993 $133.06 $265,189 226,814 Direct -0.87% Disposed 63.2% (price as of 2026-08-20)
July 31, 2024 MATX S 10b5-1 3,917 $134.03 $524,996 222,897 Direct -1.73% Disposed 62.0% (price as of 2026-08-20)
June 28, 2024 MATX S 10b5-1 3,400 $130.08 $442,272 234,840 Direct -1.43% Disposed 67.0% (price as of 2026-08-20)
June 28, 2024 MATX S 10b5-1 4,443 $130.90 $581,589 230,397 Direct -1.89% Disposed 65.9% (price as of 2026-08-20)
May 24, 2024 MATX S 10b5-1 2,664 $120.41 $320,772 245,438 Direct -1.07% Disposed 80.4% (price as of 2026-08-20)
May 24, 2024 MATX S 10b5-1 7,198 $119.85 $862,680 238,240 Direct -2.93% Disposed 81.2% (price as of 2026-08-20)
Aug. 31, 2023 MATX S 10b5-1 1,878 $88.94 $167,029 229,389 Direct -0.81% Disposed 144.2% (price as of 2026-08-20)
Aug. 31, 2023 MATX S 10b5-1 8,122 $88.16 $716,036 221,267 Direct -3.54% Disposed 146.4% (price as of 2026-08-20)
July 31, 2023 MATX S 10b5-1 600 $94.24 $56,544 240,667 Direct -0.25% Disposed 130.5% (price as of 2026-08-20)
July 31, 2023 MATX S 10b5-1 9,400 $93.75 $881,250 231,267 Direct -3.91% Disposed 131.7% (price as of 2026-08-20)
June 30, 2023 MATX S 10b5-1 10,000 $77.43 $774,300 241,267 Direct -3.98% Disposed 180.5% (price as of 2026-08-20)
May 31, 2023 MATX S 10b5-1 300 $71.26 $21,378 260,967 Direct -0.11% Disposed 204.8% (price as of 2026-08-20)
May 31, 2023 MATX S 10b5-1 2,927 $70.27 $205,680 258,040 Direct -1.12% Disposed 209.1% (price as of 2026-08-20)
May 31, 2023 MATX S 10b5-1 6,773 $69.58 $471,265 251,267 Direct -2.62% Disposed 212.2% (price as of 2026-08-20)
May 1, 2023 MATX S 10b5-1 660 $67.44 $44,510 270,607 Direct -0.24% Disposed 222.1% (price as of 2026-08-20)
May 1, 2023 MATX S 10b5-1 2,300 $66.55 $153,065 268,307 Direct -0.85% Disposed 226.4% (price as of 2026-08-20)
May 1, 2023 MATX S 10b5-1 7,040 $65.63 $462,035 261,267 Direct -2.62% Disposed 230.9% (price as of 2026-08-20)
March 31, 2023 MATX S 10b5-1 8,819 $60.01 $529,228 271,267 Direct -3.15% Disposed 261.9% (price as of 2026-08-20)
March 30, 2023 MATX S 10b5-1 6,181 $60.43 $373,518 280,086 Direct -2.16% Disposed 259.4% (price as of 2026-08-20)
Nov. 9, 2022 MATX S 100 $67.51 $6,751 238,139 Direct -0.04% Disposed 221.7% (price as of 2026-08-20)
Nov. 9, 2022 MATX S 1,462 $66.74 $97,574 236,677 Direct -0.61% Disposed 225.4% (price as of 2026-08-20)
Nov. 9, 2022 MATX S 5,938 $65.74 $390,364 230,739 Direct -2.51% Disposed 230.4% (price as of 2026-08-20)
Nov. 8, 2022 MATX S 2,323 $70.48 $163,725 243,416 Direct -0.95% Disposed 208.2% (price as of 2026-08-20)
Nov. 8, 2022 MATX S 5,177 $69.40 $359,284 238,239 Direct -2.13% Disposed 213.0% (price as of 2026-08-20)
Nov. 2, 2022 MATX S 10b5-1 2,063 $75.00 $154,725 245,739 Direct -0.83% Disposed 189.6% (price as of 2026-08-20)
Aug. 17, 2022 MATX S 10b5-1 1,722 $83.13 $143,150 251,080 Direct -0.68% Disposed 161.3% (price as of 2026-08-20)
Aug. 17, 2022 MATX S 10b5-1 3,278 $82.64 $270,894 247,802 Direct -1.31% Disposed 162.8% (price as of 2026-08-20)
Aug. 2, 2022 MATX S 10b5-1 546 $81.30 $44,390 257,256 Direct -0.21% Disposed 167.2% (price as of 2026-08-20)
Aug. 2, 2022 MATX S 10b5-1 620 $82.22 $50,976 256,636 Direct -0.24% Disposed 164.2% (price as of 2026-08-20)
Aug. 2, 2022 MATX S 10b5-1 1,050 $78.18 $82,089 255,586 Direct -0.41% Disposed 177.8% (price as of 2026-08-20)
Aug. 2, 2022 MATX S 10b5-1 1,304 $80.08 $104,424 254,282 Direct -0.51% Disposed 171.2% (price as of 2026-08-20)
Aug. 2, 2022 MATX S 10b5-1 1,480 $79.21 $117,231 252,802 Direct -0.58% Disposed 174.2% (price as of 2026-08-20)
July 18, 2022 MATX S 10b5-1 5,000 $76.82 $384,100 257,802 Direct -1.90% Disposed 182.7% (price as of 2026-08-20)
June 16, 2022 MATX S 10b5-1 555 $77.05 $42,763 267,247 Direct -0.21% Disposed 181.9% (price as of 2026-08-20)
June 16, 2022 MATX S 10b5-1 4,445 $75.60 $336,042 262,802 Direct -1.66% Disposed 187.3% (price as of 2026-08-20)
June 2, 2022 MATX S 10b5-1 608 $91.54 $55,656 272,194 Direct -0.22% Disposed 137.3% (price as of 2026-08-20)
June 2, 2022 MATX S 10b5-1 4,392 $90.77 $398,662 267,802 Direct -1.61% Disposed 139.3% (price as of 2026-08-20)
May 18, 2022 MATX S 10b5-1 2,174 $89.23 $193,986 272,802 Direct -0.79% Disposed 143.4% (price as of 2026-08-20)
May 3, 2022 MATX S 10b5-1 985 $88.38 $87,054 278,991 Direct -0.35% Disposed 145.8% (price as of 2026-08-20)
May 3, 2022 MATX S 10b5-1 1,567 $87.74 $137,489 277,424 Direct -0.56% Disposed 147.5% (price as of 2026-08-20)
May 3, 2022 MATX S 10b5-1 2,448 $89.44 $218,949 274,976 Direct -0.88% Disposed 142.8% (price as of 2026-08-20)
April 18, 2022 MATX S 10b5-1 5,000 $87.65 $438,250 279,976 Direct -1.75% Disposed 147.8% (price as of 2026-08-20)
Nov. 3, 2021 MATX S 10b5-1 1,348 $83.07 $111,978 264,196 Direct -0.51% Disposed 161.5% (price as of 2026-08-20)
Nov. 3, 2021 MATX S 10b5-1 3,652 $82.16 $300,048 260,544 Direct -1.38% Disposed 164.4% (price as of 2026-08-20)
Oct. 19, 2021 MATX S 10b5-1 100 $83.60 $8,360 270,444 Direct -0.04% Disposed 159.8% (price as of 2026-08-20)

Showing latest 100 of 408 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. 11, 2020 MATX Stock option Common Stock (31,861) $23.74 Jan. 24, 2022 31,861 Disposed
Dec. 6, 2017 MATX Stock option Common Stock (35,042) $23.28 Jan. 29, 2018 35,042 Disposed
Nov. 30, 2016 MATX Stock option Common Stock (21,426) $24.72 Jan. 23, 2017 21,426 Disposed
Jan. 11, 2016 MATX Stock option Common Stock (18,977) $20.84 Jan. 25, 2021 18,977 Disposed
Dec. 10, 2015 MATX Stock option Common Stock (18,977) $20.84 Jan. 25, 2021 18,977 Disposed
Nov. 10, 2015 MATX Stock option Common Stock (4,670) $20.84 Jan. 25, 2021 4,670 Disposed
Nov. 10, 2015 MATX Stock option Common Stock (14,307) $26.94 Jan. 24, 2016 14,307 Disposed
Oct. 12, 2015 MATX Stock option Common Stock (16,906) $16.94 Jan. 26, 2020 16,906 Disposed
Oct. 12, 2015 MATX Stock option Common Stock (2,071) $26.94 Jan. 24, 2016 2,071 Disposed
Sept. 10, 2015 MATX Stock option Common Stock (18,977) $16.94 Jan. 26, 2020 18,977 Disposed
Aug. 17, 2015 MATX Stock option Common Stock (1,096) $11.97 Jan. 27, 2019 1,096 Disposed
Aug. 17, 2015 MATX Stock option Common Stock (17,881) $16.94 Jan. 26, 2020 17,881 Disposed
July 10, 2015 MATX Stock option Common Stock (18,977) $11.97 Jan. 27, 2019 18,977 Disposed
June 10, 2015 MATX Stock option Common Stock (18,992) $11.97 Jan. 27, 2019 18,992 Disposed
May 18, 2015 MATX Stock option Common Stock (20,000) $11.97 Jan. 27, 2019 20,000 Disposed
Nov. 19, 2014 MATX Stock option Common Stock (11,113) $22.80 Jan. 25, 2015 11,113 Disposed
March 1, 2012 MATX Common Stock Equivalent Units Common Stock (430) — — 430 Disposed
Jan. 25, 2012 MATX Stock option Common Stock (16,341) $46.27 Jan. 24, 2022 16,341 Acquired
Jan. 26, 2011 MATX Stock option Common Stock (21,861) $40.63 Jan. 25, 2021 21,861 Acquired
Jan. 27, 2010 MATX Stock option Common Stock (27,574) $33.02 Jan. 26, 2020 27,574 Acquired
Feb. 27, 2009 MATX Common Stock Equivalent Units Common Stock (62) — — 62 Acquired
Jan. 28, 2009 MATX Stock option Common Stock (30,293) $23.33 Jan. 27, 2019 30,293 Acquired
Feb. 20, 2008 MATX Common Stock Equivalent Units Common Stock (63) — — 63 Acquired
Jan. 30, 2008 MATX Stock Option Common Stock [F1] (17,972) $45.38 Jan. 29, 2018 17,972 Acquired
Aug. 3, 2007 MATX Stock Option Common Stock (10,200) $33.51 Feb. 24, 2014 10,200 Disposed
March 31, 2007 MATX Common Stock Equivalent Units Common Stock (621) — — 621 Disposed
Feb. 15, 2007 MATX Common Stock Equivalent Units Common Stock (47) — — 47 Acquired
Jan. 24, 2007 MATX stock option Common Stock (10,989) $48.19 Jan. 23, 2017 10,989 Acquired
Aug. 8, 2006 MATX Stock Option Common Stock (5,334) $26.00 Jan. 21, 2013 5,334 Disposed
Jan. 25, 2006 MATX Stock option Common Stock (8,400) $52.53 Jan. 24, 2016 8,400 Acquired
Jan. 25, 2006 MATX Common Stock Equivalent Units Common Stock (44) — — 44 Acquired
May 4, 2005 MATX Stock Option Common Stock (5,000) $26.52 Jan. 22, 2012 5,000 Disposed
May 1, 2005 MATX Common Stock Equivalent Units Common Stock (141) — — 141 Acquired
March 30, 2005 MATX Stock Option Common Stock (5,666) $26.00 Jan. 21, 2013 5,666 Disposed
Jan. 26, 2005 MATX Stock Option Common Stock (5,700) $44.45 Jan. 25, 2015 5,700 Acquired
Jan. 26, 2005 MATX Common Stock Equivalent Units Common Stock (594) — — 594 Acquired
Dec. 2, 2004 MATX Stock Option Common Stock (5,000) $26.00 Jan. 21, 2013 5,000 Disposed
Nov. 9, 2004 MATX Stock Option Common Stock (5,000) $26.52 Jan. 22, 2012 5,000 Disposed
Nov. 8, 2004 MATX Stock Option Common Stock (5,000) $23.29 May 31, 2011 5,000 Disposed
Feb. 25, 2004 MATX Stock Option Common Stock (10,200) $33.51 Feb. 24, 2014 10,200 Acquired
Sept. 16, 2003 MATX Stock Option Common Stock (5,000) $26.52 Jan. 22, 2012 5,000 Disposed
Sept. 16, 2003 MATX Stock Option Common Stock (10,000) $23.29 May 31, 2011 10,000 Disposed

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

Compensation (DEF 14A)

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

MATX

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2012 $518,592 — $409,634 $175,497 $603,779 $300,052 $48,601 $2,056,155
2011 $429,256 — $454,975 $195,000 $70,081 $230,587 $16,619 $1,396,518
2010 — — — — — — — —

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