MATX's three largest insider shareholders as of September 29, 2026 are Matthew J Cox (Chairman Ceo, 229.30K shares), Joel M Wine (Evp Cfo, 106.55K shares), Constance H Lau (Director, 76.59K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Matthew J Cox | Chairman Ceo | 229,296 | 0 | 229,296 | 27.4% | 28 Aug, 2026 |
| 2 | Joel M Wine | Evp Cfo | 106,547 | 0 | 106,547 | 12.7% | 03 Mar, 2026 |
| 3 | Constance H Lau | Director | 76,594 | 0 | 76,594 | 9.1% | 24 Apr, 2026 |
| 4 | Stanley M Kuriyama | President Ceo | 49,626 | 0 | 49,626 | 5.9% | 10 Jun, 2026 |
| 5 | Ronald J Forest | President | 42,654 | 0 | 42,654 | 5.1% | 28 Jan, 2022 |
| 6 | Meredith J Ching | Senior Vice President | 35,700 | 0 | 35,700 | 4.3% | 23 Apr, 2026 |
| 7 | Mark H Fukunaga | Director | 30,077 | 0 | 30,077 | 3.6% | 25 Apr, 2026 |
| 8 | Thomas B Fargo | Director | 27,615 | 0 | 27,615 | 3.3% | 26 Feb, 2024 |
| 9 | Rusty K Rolfe | Evp | 26,827 | 0 | 26,827 | 3.2% | 27 Jan, 2025 |
| 10 | John P Lauer | Evp Chief Commercial Officer | 23,738 | 0 | 23,738 | 2.8% | 06 Mar, 2026 |
| 11 | Peter T Heilmann | Evp, Chief Admin. Officer Gc | 20,506 | 0 | 20,506 | 2.4% | 19 Aug, 2026 |
| 12 | Jenai S Wall | Director | 18,122 | 0 | 18,122 | 2.2% | 23 Apr, 2026 |
| 13 | Grace M Cerocke | Senior Vice President | 17,986 | 0 | 17,986 | 2.1% | 28 May, 2026 |
| 14 | Branton B Dreyfus | Senior Vice President, Alaska | 17,411 | 0 | 17,411 | 2.1% | 28 Feb, 2022 |
| 15 | Qiang Gao | Senior Vice President | 16,356 | 0 | 16,356 | 2.0% | 26 Jan, 2026 |
| 16 | Laura L Rascon | Senior Vice President | 15,656 | 0 | 15,656 | 1.9% | 08 Jun, 2026 |
| 17 | Vic S Jr Angoco | Executive Vice President | 12,427 | 0 | 12,427 | 1.5% | 31 Aug, 2026 |
| 18 | Kuuhaku T Park | Senior Vice President | 9,984 | 0 | 9,984 | 1.2% | 12 Aug, 2026 |
| 19 | Jason Lee Taylor | Senior Vice President | 9,377 | 0 | 9,377 | 1.1% | 13 Aug, 2026 |
| 20 | Christopher A Scott | Evp Chief Commercial Officer | 9,354 | 0 | 9,354 | 1.1% | 19 Aug, 2026 |
| 21 | John Warren Sullivan | Senior Vice President | 7,630 | 0 | 7,630 | 0.9% | 11 Aug, 2026 |
| 22 | Bradley D Tilden | Director | 7,555 | 0 | 7,555 | 0.9% | 11 May, 2026 |
| 23 | Richard S Kinney | Senior Vice President | 6,746 | 0 | 6,746 | 0.8% | 03 Mar, 2026 |
| 24 | Leonard P Isotoff | Senior Vice President | 6,527 | 0 | 6,527 | 0.8% | 12 Aug, 2026 |
| 25 | Jennifer C. Tungul | Senior Vice President | 5,775 | 0 | 5,775 | 0.7% | 31 Aug, 2026 |
| 26 | Jerome James Holland | Evp | 5,310 | 0 | 5,310 | 0.6% | 02 Jul, 2026 |
| 27 | Kevin L Stuck | Vp And Controller | 2,331 | 0 | 2,331 | 0.3% | 04 Mar, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 28 Aug, 2026 | Jennifer C. Tungul | Senior Vice President | Disposed F | 77 | $224.31 | $17.27K | 5,775 | Direct |
| 28 Aug, 2026 | Vic S Jr Angoco | Executive Vice President | Disposed F | 80 | $224.31 | $17.94K | 12,427 | Direct |
| 28 Aug, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 442 | $225.05 | $99.47K | 238,854 | Direct |
| 28 Aug, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 3,443 | $223.91 | $770.92K | 235,411 | Direct |
| 28 Aug, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 6,115 | $223.22 | $1.36Mn | 229,296 | Direct |
| 24 Aug, 2026 | Vic S Jr Angoco | Executive Vice President | Disposed S | 582 | $224.09 | $130.42K | 14,218 | Direct |
| 24 Aug, 2026 | Vic S Jr Angoco | Executive Vice President | Disposed S | 670 | $222.81 | $149.28K | 13,548 | Direct |
| 24 Aug, 2026 | Vic S Jr Angoco | Executive Vice President | Disposed S | 1,041 | $221.98 | $231.08K | 12,507 | Direct |
| 19 Aug, 2026 | Christopher A Scott | Evp Chief Commercial Officer | Disposed S | 600 | $219.90 | $131.94K | 9,354 | Direct |
| 19 Aug, 2026 | Peter T Heilmann | Evp, Chief Admin. Officer Gc | Disposed S | 5,000 | $220.15 | $1.10Mn | 20,506 | Direct |
| 13 Aug, 2026 | Jason Lee Taylor | Senior Vice President | Disposed S | 1,961 | $217.00 | $425.54K | 9,377 | Direct |
| 11 Aug, 2026 | Kuuhaku T Park | Senior Vice President | Disposed S | 1,000 | $208.49 | $208.49K | 9,984 | Direct |
| 11 Aug, 2026 | Leonard P Isotoff | Senior Vice President | Disposed S | 1,250 | $208.30 | $260.37K | 6,527 | Direct |
| 11 Aug, 2026 | Jennifer C. Tungul | Senior Vice President | Disposed S | 402 | $208.49 | $83.81K | 5,852 | Direct |
| 11 Aug, 2026 | John Warren Sullivan | Senior Vice President | Disposed S | 1,917 | $208.49 | $399.68K | 7,630 | Direct |
| 29 Jul, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 348 | $201.43 | $70.10K | 248,948 | Direct |
| 29 Jul, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 1,163 | $200.56 | $233.25K | 247,785 | Direct |
| 29 Jul, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 1,172 | $198.61 | $232.77K | 246,613 | Direct |
| 29 Jul, 2026 | Matthew J Cox | Chairman Ceo | Disposed S | 7,317 | $199.81 | $1.46Mn | 239,296 | Direct |
| 01 Jul, 2026 | Jerome James Holland | Evp | Disposed F | 64 | $203.92 | $13.05K | 5,310 | Direct |