John Warren Sullivan

Insider

First SEC filing: Feb. 9, 2021 · Latest: Feb. 9, 2021

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.

Insider at

MATX selling Aug. 11, 2026

Insider transactions

0 buys (P) 3 sells (S) Net: $-1,483,642 + 34 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

34 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 11, 2026	MATX	S	1,917	$208.49	$399,675	7,630 Direct	-20.08%	Disposed	4.2% (price as of 2026-08-20)
May 8, 2026	MATX	S	3,331	$180.14	$600,046	9,547 Direct	-25.87%	Disposed	20.6% (price as of 2026-08-20)
March 9, 2026	MATX	S	3,255	$148.67	$483,921	12,878 Direct	-20.18%	Disposed	46.1% (price as of 2026-08-20)
Jan. 25, 2026	MATX	A	5,960	—	—	19,620 Direct	+43.63%	Acquired	(price as of 2026-08-20)
Jan. 25, 2026	MATX	F	403	$158.94	$64,053	19,217 Direct	-2.05%	Disposed	36.7% (price as of 2026-08-20)
Jan. 25, 2026	MATX	F	3,084	$158.94	$490,171	16,133 Direct	-16.05%	Disposed	36.7% (price as of 2026-08-20)
Jan. 24, 2026	MATX	F	182	$158.94	$28,927	13,660 Direct	-1.31%	Disposed	36.7% (price as of 2026-08-20)
Jan. 22, 2026	MATX	F	153	$160.30	$24,526	13,842 Direct	-1.09%	Disposed	35.5% (price as of 2026-08-20)
Jan. 21, 2026	MATX	A	803	—	—	13,995 Direct	+6.09%	Acquired	(price as of 2026-08-20)
March 14, 2025	MATX	S	1,500	$128.85	$193,275	13,192 Direct	-10.21%	Disposed	68.6% (price as of 2026-08-20)
Jan. 26, 2025	MATX	A	2,970	—	—	16,036 Direct	+22.73%	Acquired	(price as of 2026-08-20)
Jan. 26, 2025	MATX	A	990	—	—	17,026 Direct	+6.17%	Acquired	(price as of 2026-08-20)
Jan. 26, 2025	MATX	F	268	$136.32	$36,534	16,758 Direct	-1.57%	Disposed	59.3% (price as of 2026-08-20)
Jan. 26, 2025	MATX	F	502	$136.32	$68,433	16,256 Direct	-3.00%	Disposed	59.3% (price as of 2026-08-20)
Jan. 26, 2025	MATX	F	1,564	$136.32	$213,204	14,692 Direct	-9.62%	Disposed	59.3% (price as of 2026-08-20)
Jan. 25, 2025	MATX	F	403	$136.32	$54,937	13,066 Direct	-2.99%	Disposed	59.3% (price as of 2026-08-20)
Jan. 24, 2025	MATX	F	182	$136.32	$24,810	13,469 Direct	-1.33%	Disposed	59.3% (price as of 2026-08-20)
Jan. 22, 2025	MATX	A	906	—	—	13,651 Direct	+7.11%	Acquired	(price as of 2026-08-20)
Nov. 13, 2024	MATX	S	750	$165.50	$124,125	12,745 Direct	-5.56%	Disposed	31.2% (price as of 2026-08-20)
May 8, 2024	MATX	S	893	$110.60	$98,766	13,495 Direct	-6.21%	Disposed	96.4% (price as of 2026-08-20)
Jan. 27, 2024	MATX	A	3,632	—	—	15,955 Direct	+29.47%	Acquired	(price as of 2026-08-20)
Jan. 27, 2024	MATX	A	1,210	—	—	17,165 Direct	+7.58%	Acquired	(price as of 2026-08-20)
Jan. 27, 2024	MATX	F	326	$114.40	$37,294	16,839 Direct	-1.90%	Disposed	89.9% (price as of 2026-08-20)
Jan. 27, 2024	MATX	F	613	$114.40	$70,127	16,226 Direct	-3.64%	Disposed	89.9% (price as of 2026-08-20)
Jan. 27, 2024	MATX	F	1,838	$144.40	$265,407	14,388 Direct	-11.33%	Disposed	50.4% (price as of 2026-08-20)
Jan. 26, 2024	MATX	F	290	$114.40	$33,176	12,323 Direct	-2.30%	Disposed	89.9% (price as of 2026-08-20)
Jan. 25, 2024	MATX	F	443	$116.28	$51,512	12,613 Direct	-3.39%	Disposed	86.8% (price as of 2026-08-20)
Jan. 24, 2024	MATX	A	1,076	—	—	13,056 Direct	+8.98%	Acquired	(price as of 2026-08-20)
Jan. 27, 2023	MATX	F	320	$63.97	$20,470	11,980 Direct	-2.60%	Disposed	239.5% (price as of 2026-08-20)
Jan. 26, 2023	MATX	F	261	$62.94	$16,427	12,300 Direct	-2.08%	Disposed	245.1% (price as of 2026-08-20)
Jan. 25, 2023	MATX	A	3,662	—	—	12,050 Direct	+43.66%	Acquired	(price as of 2026-08-20)
Jan. 25, 2023	MATX	A	2,384	—	—	14,434 Direct	+19.78%	Acquired	(price as of 2026-08-20)
Jan. 25, 2023	MATX	F	1,873	$62.94	$117,887	12,561 Direct	-12.98%	Disposed	245.1% (price as of 2026-08-20)
Jan. 22, 2023	MATX	F	510	$63.48	$32,375	8,388 Direct	-5.73%	Disposed	242.1% (price as of 2026-08-20)
March 1, 2022	MATX	S	943	$108.44	$102,259	8,898 Direct	-9.58%	Disposed	100.3% (price as of 2026-08-20)
Jan. 27, 2022	MATX	F	223	$93.49	$20,848	9,841 Direct	-2.22%	Disposed	132.3% (price as of 2026-08-20)
Jan. 26, 2022	MATX	A	1,584	—	—	9,121 Direct	+21.02%	Acquired	(price as of 2026-08-20)
Jan. 26, 2022	MATX	A	1,440	—	—	10,561 Direct	+15.79%	Acquired	(price as of 2026-08-20)
Jan. 26, 2022	MATX	F	497	$94.71	$47,071	10,064 Direct	-4.71%	Disposed	129.3% (price as of 2026-08-20)
Jan. 23, 2022	MATX	F	220	$91.02	$20,024	7,537 Direct	-2.84%	Disposed	138.6% (price as of 2026-08-20)
Jan. 22, 2022	MATX	F	374	$91.02	$34,041	7,757 Direct	-4.60%	Disposed	138.6% (price as of 2026-08-20)

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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Feb. 9, 2021	MATX	Common Stock	8,131	Direct