Ken Griffin Matrix Service CO Transaction History

Citadel Advisors LLC

$618 Billion
Q3 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Matrix Service CO stock. As of the latest transaction made, Citadel Advisors LLC holds 13,600 shares of MTRX stock, worth $161,296. This represents 0.0% of its overall portfolio holdings.

Number of Shares

13,600

Previous 72,000 81.11%

Holding current value

$161,296

Previous $972,000 81.89%

% of portfolio

0.0%

Previous 0.0%

29 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$12.27 - $15.74 $650,837 - $834,896	53,043 New	53,043 $686,000
Q4 2024 Feb 14, 2025	SELL	$11.14 - $13.45 $227,579 - $274,770	-20,429 Reduced 52.6%	18,411 $220,000
Q3 2024 Nov 14, 2024	SELL	$8.77 - $11.55 $280,832 - $369,854	-32,022 Reduced 45.19%	38,840 $447,000
Q2 2024 Aug 14, 2024	SELL	$9.73 - $13.15 $583,624 - $788,763	-59,982 Reduced 45.84%	70,862 $703,000
Q1 2024 May 15, 2024	SELL	$8.95 - $13.37 $1.71 Million - $2.56 Million	-191,401 Reduced 59.4%	130,844 $1.7 Million

Q4 2023 Feb 14, 2024	BUY	$9.33 - $12.89 $1.95 Million - $2.7 Million	209,503 Added 185.83%	322,245 $3.15 Million
Q3 2023 Nov 14, 2023	SELL	$5.64 - $11.8 $273,810 - $572,866	-48,548 Reduced 30.1%	112,742 $1.33 Million
Q2 2023 Aug 14, 2023	BUY	$4.75 - $6.32 $12,226 - $16,267	2,574 Added 1.62%	161,290 $949,000
Q1 2023 May 15, 2023	SELL	$4.81 - $9.28 $336,926 - $650,036	-70,047 Reduced 30.62%	158,716 $857,000
Q4 2022 Feb 14, 2023	BUY	$3.82 - $6.6 $873,874 - $1.51 Million	228,763 New	228,763 $1.42 Million
Q2 2022 Aug 15, 2022	SELL	$5.01 - $8.23 $193,040 - $317,110	-38,531 Reduced 17.35%	183,568 $929,000
Q1 2022 May 16, 2022	BUY	$6.29 - $8.83 $64,415 - $90,428	10,241 Added 4.83%	222,099 $1.83 Million
Q4 2021 Feb 14, 2022	BUY	$6.58 - $11.54 $1.2 Million - $2.11 Million	182,930 Added 632.36%	211,858 $1.59 Million
Q3 2021 Nov 15, 2021	BUY	$9.75 - $11.5 $139,785 - $164,875	14,337 Added 98.26%	28,928 $302,000
Q2 2021 Aug 16, 2021	SELL	$10.18 - $13.86 $320,832 - $436,811	-31,516 Reduced 68.35%	14,591 $153,000
Q1 2021 May 17, 2021	SELL	$10.7 - $15.75 $151,458 - $222,941	-14,155 Reduced 23.49%	46,107 $604,000
Q4 2020 Feb 16, 2021	BUY	$7.29 - $11.66 $279,272 - $446,682	38,309 Added 174.5%	60,262 $664,000
Q3 2020 Nov 16, 2020	SELL	$7.52 - $10.55 $410,088 - $575,323	-54,533 Reduced 71.3%	21,953 $183,000
Q2 2020 Aug 14, 2020	SELL	$7.95 - $12.43 $87,235 - $136,394	-10,973 Reduced 12.55%	76,486 $743,000
Q1 2020 May 15, 2020	BUY	$7.46 - $22.7 $301,234 - $916,626	40,380 Added 85.77%	87,459 $828,000
Q4 2019 Feb 14, 2020	SELL	$16.45 - $23.55 $2.25 Million - $3.22 Million	-136,561 Reduced 74.36%	47,079 $1.08 Million
Q3 2019 Nov 14, 2019	BUY	$17.14 - $21.81 $2.23 Million - $2.84 Million	130,070 Added 242.8%	183,640 $3.15 Million
Q2 2019 Aug 14, 2019	BUY	$18.1 - $22.4 $659,274 - $815,897	36,424 Added 212.43%	53,570 $1.09 Million
Q1 2019 May 15, 2019	SELL	$18.0 - $22.28 $974,106 - $1.21 Million	-54,117 Reduced 75.94%	17,146 $0
Q4 2018 Feb 14, 2019	SELL	$15.65 - $24.54 $129,394 - $202,896	-8,268 Reduced 10.4%	71,263 $1.28 Million
Q3 2018 Nov 13, 2018	SELL	$18.8 - $25.75 $948,648 - $1.3 Million	-50,460 Reduced 38.82%	79,531 $0
Q2 2018 Aug 10, 2018	SELL	$13.9 - $19.55 $297,404 - $418,291	-21,396 Reduced 14.13%	129,991 $0
Q1 2018 May 11, 2018	BUY	$13.25 - $20.0 $300,695 - $453,880	22,694 Added 17.63%	151,387 $2.07 Million
Q4 2017 Feb 09, 2018	BUY	$13.4 - $18.3 $1.72 Million - $2.36 Million	128,693	128,693 $2.29 Million

Others Institutions Holding MTRX

# of Institutions

151

Shares Held

24.6M

Call Options Held

60.2K

Put Options Held

24.9K

View Full List

About MATRIX SERVICE CO

Ticker MTRX
Exchange NASDAQ
Sector Industrials
Industry Engineering & Construction
Shares Outstandng 26,972,600
Market Cap $320M
Description
Matrix Service Company provides engineering, fabrication, infrastructure, construction, and maintenance services primarily to the oil, gas, power, petrochemical, industrial, agricultural, mining, and minerals markets in the United States, Canada, South Korea, Australia, and internationally. It operates through three segments: Utility and Power I...

More about MTRX

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