Kevin A Durkin

Insider

First SEC filing: Sept. 3, 2024 · Latest: Sept. 3, 2024

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.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

MTRX selling March 22, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 81 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

81 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 30, 2024	MTRX	M	1,649	—	—	3,298 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Aug. 30, 2024	MTRX	M	1,384	—	—	1,383 Direct	-50.02%	Disposed	(price as of 2026-08-21)
Aug. 30, 2024	MTRX	F	1,116	$9.96	$11,115	78,741 Direct	-1.40%	Disposed	12.8% (price as of 2026-08-21)
Aug. 30, 2024	MTRX	A	3,128	—	—	79,857 Direct	+4.08%	Acquired	(price as of 2026-08-21)
Aug. 30, 2024	MTRX	F	549	$9.96	$5,468	76,729 Direct	-0.71%	Disposed	12.8% (price as of 2026-08-21)
Aug. 30, 2024	MTRX	D	1,649	$9.96	$16,424	77,278 Direct	-2.09%	Disposed	12.8% (price as of 2026-08-21)
Aug. 30, 2024	MTRX	M	1,649	—	—	78,927 Direct	+2.13%	Acquired	(price as of 2026-08-21)
Aug. 30, 2024	MTRX	F	461	$9.96	$4,592	77,278 Direct	-0.59%	Disposed	12.8% (price as of 2026-08-21)
Aug. 30, 2024	MTRX	D	1,384	$9.96	$13,785	77,739 Direct	-1.75%	Disposed	12.8% (price as of 2026-08-21)
Aug. 30, 2024	MTRX	M	1,384	—	—	79,123 Direct	+1.78%	Acquired	(price as of 2026-08-21)
Aug. 29, 2024	MTRX	M	2,438	—	—	7,313 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Aug. 29, 2024	MTRX	F	869	$9.95	$8,647	77,739 Direct	-1.11%	Disposed	12.9% (price as of 2026-08-21)
Aug. 29, 2024	MTRX	D	2,438	$9.95	$24,258	78,608 Direct	-3.01%	Disposed	12.9% (price as of 2026-08-21)
Aug. 29, 2024	MTRX	M	2,438	—	—	81,046 Direct	+3.10%	Acquired	(price as of 2026-08-21)
Aug. 27, 2024	MTRX	A	6,801	—	—	6,801 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 27, 2024	MTRX	A	6,801	—	—	78,608 Direct	+9.47%	Acquired	(price as of 2026-08-21)
Aug. 24, 2024	MTRX	M	1,273	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Aug. 24, 2024	MTRX	F	424	$10.00	$4,240	71,807 Direct	-0.59%	Disposed	12.3% (price as of 2026-08-21)
Aug. 24, 2024	MTRX	D	1,273	$10.00	$12,730	72,231 Direct	-1.73%	Disposed	12.3% (price as of 2026-08-21)
Aug. 24, 2024	MTRX	M	1,273	—	—	73,504 Direct	+1.76%	Acquired	(price as of 2026-08-21)
March 22, 2024	MTRX	S	3,900	$13.14	$51,246	72,231 Direct	-5.12%	Disposed	-14.5% (price as of 2026-08-21)
Feb. 9, 2024	MTRX	S	3,900	$12.72	$49,608	76,131 Direct	-4.87%	Disposed	-11.7% (price as of 2026-08-21)
Aug. 30, 2023	MTRX	M	1,650	—	—	4,947 Direct	-25.01%	Disposed	(price as of 2026-08-21)
Aug. 30, 2023	MTRX	M	1,384	—	—	2,767 Direct	-33.34%	Disposed	(price as of 2026-08-21)
Aug. 30, 2023	MTRX	F	570	$8.53	$4,862	80,031 Direct	-0.71%	Disposed	31.7% (price as of 2026-08-21)
Aug. 30, 2023	MTRX	F	446	$8.53	$3,804	80,601 Direct	-0.55%	Disposed	31.7% (price as of 2026-08-21)
Aug. 30, 2023	MTRX	D	1,650	$8.53	$14,074	81,047 Direct	-2.00%	Disposed	31.7% (price as of 2026-08-21)
Aug. 30, 2023	MTRX	M	1,650	—	—	82,697 Direct	+2.04%	Acquired	(price as of 2026-08-21)
Aug. 30, 2023	MTRX	D	1,384	$8.53	$11,806	81,047 Direct	-1.68%	Disposed	31.7% (price as of 2026-08-21)
Aug. 30, 2023	MTRX	M	1,384	—	—	82,431 Direct	+1.71%	Acquired	(price as of 2026-08-21)
Aug. 29, 2023	MTRX	A	9,751	—	—	9,751 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 29, 2023	MTRX	A	9,751	—	—	81,047 Direct	+13.68%	Acquired	(price as of 2026-08-21)
Aug. 26, 2023	MTRX	F	349	$7.96	$2,778	71,296 Direct	-0.49%	Disposed	41.1% (price as of 2026-08-21)
Aug. 24, 2023	MTRX	M	1,273	—	—	1,273 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Aug. 24, 2023	MTRX	F	410	$7.89	$3,235	71,645 Direct	-0.57%	Disposed	42.3% (price as of 2026-08-21)
Aug. 24, 2023	MTRX	D	1,273	$7.89	$10,044	72,055 Direct	-1.74%	Disposed	42.3% (price as of 2026-08-21)
Aug. 24, 2023	MTRX	M	1,273	—	—	73,328 Direct	+1.77%	Acquired	(price as of 2026-08-21)
Aug. 30, 2022	MTRX	A	6,597	—	—	6,597 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 30, 2022	MTRX	M	1,384	—	—	4,151 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Aug. 30, 2022	MTRX	A	6,597	—	—	72,055 Direct	+10.08%	Acquired	(price as of 2026-08-21)
Aug. 30, 2022	MTRX	D	1,384	$5.78	$8,000	65,458 Direct	-2.07%	Disposed	94.3% (price as of 2026-08-21)
Aug. 30, 2022	MTRX	M	1,384	—	—	66,842 Direct	+2.11%	Acquired	(price as of 2026-08-21)
Aug. 24, 2022	MTRX	M	1,273	—	—	2,546 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Aug. 24, 2022	MTRX	D	1,273	$5.82	$7,409	65,458 Direct	-1.91%	Disposed	93.0% (price as of 2026-08-21)
Aug. 24, 2022	MTRX	M	1,273	—	—	66,731 Direct	+1.94%	Acquired	(price as of 2026-08-21)
Feb. 14, 2022	MTRX	P	7,800	$6.36	$49,608	65,458 Direct	+13.53%	Acquired	76.6% (price as of 2026-08-21)
Aug. 30, 2021	MTRX	A	5,535	—	—	5,535 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 30, 2021	MTRX	A	5,535	—	—	57,658 Direct	+10.62%	Acquired	(price as of 2026-08-21)
Aug. 29, 2021	MTRX	F	804	$11.33	$9,109	52,123 Direct	-1.52%	Disposed	-0.9% (price as of 2026-08-21)
Aug. 27, 2021	MTRX	F	304	$11.33	$3,444	52,927 Direct	-0.57%	Disposed	-0.9% (price as of 2026-08-21)
Aug. 26, 2021	MTRX	F	375	$10.75	$4,031	53,231 Direct	-0.70%	Disposed	4.5% (price as of 2026-08-21)
Aug. 24, 2021	MTRX	M	1,274	—	—	3,819 Direct	-25.01%	Disposed	(price as of 2026-08-21)
Aug. 24, 2021	MTRX	F	440	$10.98	$4,831	53,606 Direct	-0.81%	Disposed	2.3% (price as of 2026-08-21)
Aug. 24, 2021	MTRX	D	1,274	$10.98	$13,989	54,046 Direct	-2.30%	Disposed	2.3% (price as of 2026-08-21)
Aug. 24, 2021	MTRX	M	1,274	—	—	55,320 Direct	+2.36%	Acquired	(price as of 2026-08-21)
Feb. 11, 2021	MTRX	M	8,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 11, 2021	MTRX	M	8,000	$10.19	$81,520	54,046 Direct	+17.37%	Acquired	10.2% (price as of 2026-08-21)
Aug. 29, 2020	MTRX	F	1,716	$9.21	$15,804	46,046 Direct	-3.59%	Disposed	21.9% (price as of 2026-08-21)
Aug. 29, 2020	MTRX	A	4,965	—	—	47,762 Direct	+11.60%	Acquired	(price as of 2026-08-21)
Aug. 29, 2020	MTRX	F	804	$9.21	$7,405	42,797 Direct	-1.84%	Disposed	21.9% (price as of 2026-08-21)
Aug. 27, 2020	MTRX	F	304	$8.85	$2,690	43,601 Direct	-0.69%	Disposed	26.9% (price as of 2026-08-21)
Aug. 26, 2020	MTRX	F	375	$8.69	$3,259	43,905 Direct	-0.85%	Disposed	29.2% (price as of 2026-08-21)
Aug. 24, 2020	MTRX	A	5,093	—	—	5,093 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 24, 2020	MTRX	A	5,093	—	—	44,280 Direct	+13.00%	Acquired	(price as of 2026-08-21)
Aug. 23, 2020	MTRX	F	345	$9.15	$3,157	39,187 Direct	-0.87%	Disposed	22.7% (price as of 2026-08-21)
Oct. 23, 2011	MTRX	F	330	$10.36	$3,419	32,387 Direct	-1.01%	Disposed	8.4% (price as of 2026-08-21)
Oct. 23, 2011	MTRX	F	33	$10.36	$342	32,717 Direct	-0.10%	Disposed	8.4% (price as of 2026-08-21)
Oct. 22, 2011	MTRX	F	60	$10.36	$622	32,750 Direct	-0.18%	Disposed	8.4% (price as of 2026-08-21)
Oct. 21, 2011	MTRX	F	176	$10.36	$1,823	32,810 Direct	-0.53%	Disposed	8.4% (price as of 2026-08-21)
Dec. 2, 2010	MTRX	A	11,000	—	—	32,986 Direct	+50.03%	Acquired	(price as of 2026-08-21)
Oct. 23, 2010	MTRX	F	33	$9.42	$311	21,986 Direct	-0.15%	Disposed	19.2% (price as of 2026-08-21)
Oct. 23, 2010	MTRX	F	330	$9.42	$3,109	22,019 Direct	-1.48%	Disposed	19.2% (price as of 2026-08-21)
Oct. 22, 2010	MTRX	F	60	$9.42	$565	22,349 Direct	-0.27%	Disposed	19.2% (price as of 2026-08-21)
Oct. 21, 2010	MTRX	F	176	$9.40	$1,654	22,409 Direct	-0.78%	Disposed	19.5% (price as of 2026-08-21)
Oct. 23, 2009	MTRX	F	32	$9.56	$306	22,585 Direct	-0.14%	Disposed	17.5% (price as of 2026-08-21)
Oct. 23, 2009	MTRX	F	160	$9.56	$1,530	22,617 Direct	-0.70%	Disposed	17.5% (price as of 2026-08-21)
Oct. 23, 2009	MTRX	A	4,500	—	—	22,777 Direct	+24.62%	Acquired	(price as of 2026-08-21)
Oct. 23, 2009	MTRX	A	450	—	—	18,277 Direct	+2.52%	Acquired	(price as of 2026-08-21)
Oct. 22, 2009	MTRX	F	58	$9.63	$559	17,827 Direct	-0.32%	Disposed	16.6% (price as of 2026-08-21)
Oct. 21, 2009	MTRX	F	171	$9.66	$1,652	17,885 Direct	-0.95%	Disposed	16.3% (price as of 2026-08-21)
Aug. 14, 2009	MTRX	A	4,000	—	—	18,056 Direct	+28.46%	Acquired	(price as of 2026-08-21)
Oct. 23, 2008	MTRX	F	32	$11.15	$357	14,056 Direct	-0.23%	Disposed	0.7% (price as of 2026-08-21)
Oct. 22, 2008	MTRX	F	58	$11.50	$667	14,088 Direct	-0.41%	Disposed	-2.3% (price as of 2026-08-21)
Oct. 21, 2008	MTRX	A	2,400	—	—	14,146 Direct	+20.43%	Acquired	(price as of 2026-08-21)

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
Aug. 30, 2024	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK (1,649)	—	Aug. 30, 2026	1,649	Disposed
Aug. 30, 2024	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK (1,384)	—	Aug. 30, 2025	1,384	Disposed
Aug. 29, 2024	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK (2,438)	—	Aug. 29, 2027	2,438	Disposed
Aug. 27, 2024	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (6,801)	—	Aug. 27, 2028	6,801	Acquired
Aug. 24, 2024	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,273)	—	Aug. 24, 2024	1,273	Disposed
Aug. 30, 2023	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,650)	—	Aug. 30, 2026	1,650	Disposed
Aug. 30, 2023	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,384)	—	Aug. 30, 2025	1,384	Disposed
Aug. 29, 2023	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (9,751)	—	Aug. 29, 2027	9,751	Acquired
Aug. 24, 2023	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,273)	—	Aug. 24, 2024	1,273	Disposed
Aug. 30, 2022	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (6,597)	—	Aug. 30, 2026	6,597	Acquired
Aug. 30, 2022	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,384)	—	Aug. 30, 2025	1,384	Disposed
Aug. 24, 2022	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,273)	—	Aug. 24, 2024	1,273	Disposed
Aug. 30, 2021	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (5,535)	—	Aug. 30, 2025	5,535	Acquired
Aug. 24, 2021	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK [F1] (1,274)	—	Aug. 24, 2024	1,274	Disposed
Feb. 11, 2021	MTRX	INCENTIVE STOCK OPTION (RIGHT TO BUY) [F1]	COMMON STOCK [F1] (8,000)	$10.19	Nov. 17, 2021	8,000	Disposed
Aug. 24, 2020	MTRX	RESTRICTED STOCK UNITS	COMMON STOCK (5,093)	—	Aug. 24, 2024	5,093	Acquired

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

Initial ownership (Form 3) 6 holdings

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

Date	Ticker	Security	Shares	Ownership
Aug. 20, 2020	MTRX	COMMON STOCK [F1]	39,532	Direct
Aug. 20, 2020	MTRX	INCENTIVE STOCK OPTION (RIGHT TO BUY) [F1]→ COMMON STOCK [F1] (8,000)	8,000	Direct
Oct. 21, 2008	MTRX	COMMON STOCK [F1]	10,561	Direct
Oct. 21, 2008	MTRX	INCENTIVE STOCK OPTION (RIGHT TO BUY) [F1]→ COMMON STOCK [F1] (5,000)	5,000	Direct
Oct. 21, 2008	MTRX	INCENTIVE STOCK OPTION (RIGHT TO BUY) [F1]→ COMMON STOCK [F1] (2,000)	2,000	Direct
Oct. 21, 2008	MTRX	INCENTIVE STOCK OPTION (RIGHT TO BUY) [F1]→ COMMON STOCK [F1] (2,000)	2,000	Direct