Ken Griffin Montrose Environmental Group, Inc. Transaction History

Citadel Advisors LLC

$618 Billion
Q3 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Montrose Environmental Group, Inc. stock. As of the latest transaction made, Citadel Advisors LLC holds 235,981 shares of MEG stock, worth $5.74 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

235,981

Previous 180,191 30.96%

Holding current value

$5.74 Million

Previous $3.94 Million 64.3%

% of portfolio

0.0%

Previous 0.0%

21 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$20.57 - $31.06 $1.15 Million - $1.73 Million	55,790 Added 30.96%	235,981 $6.48 Million
Q2 2025 Aug 14, 2025	BUY	$10.74 - $23.62 $828,032 - $1.82 Million	77,098 Added 74.78%	180,191 $3.94 Million
Q1 2025 May 15, 2025	SELL	$14.26 - $24.01 $338,019 - $569,133	-23,704 Reduced 18.69%	103,093 $1.47 Million
Q4 2024 Feb 14, 2025	SELL	$15.62 - $27.65 $4.09 Million - $7.24 Million	-261,871 Reduced 67.38%	126,797 $2.35 Million
Q3 2024 Nov 14, 2024	BUY	$26.29 - $42.29 $9.13 Million - $14.7 Million	347,244 Added 838.27%	388,668 $10.2 Million

Q2 2024 Aug 14, 2024	BUY	$37.15 - $49.82 $347,426 - $465,916	9,352 Added 29.16%	41,424 $1.85 Million
Q1 2024 May 15, 2024	SELL	$26.65 - $41.38 $2.27 Million - $3.52 Million	-85,024 Reduced 72.61%	32,072 $1.26 Million
Q4 2023 Feb 14, 2024	SELL	$22.27 - $33.0 $754,618 - $1.12 Million	-33,885 Reduced 22.44%	117,096 $3.76 Million
Q3 2023 Nov 14, 2023	BUY	$29.12 - $45.36 $501,126 - $780,600	17,209 Added 12.86%	150,981 $4.42 Million
Q2 2023 Aug 14, 2023	BUY	$28.87 - $43.56 $2.73 Million - $4.11 Million	94,439 Added 240.1%	133,772 $5.63 Million
Q1 2023 May 15, 2023	SELL	$32.16 - $54.48 $337,326 - $571,440	-10,489 Reduced 21.05%	39,333 $1.4 Million
Q4 2022 Feb 14, 2023	BUY	$33.86 - $49.68 $883,068 - $1.3 Million	26,080 Added 109.85%	49,822 $2.21 Million
Q3 2022 Nov 14, 2022	SELL	$33.49 - $47.6 $455,263 - $647,074	-13,594 Reduced 36.41%	23,742 $799,000
Q2 2022 Aug 15, 2022	SELL	$29.6 - $55.42 $2.93 Million - $5.49 Million	-99,012 Reduced 72.62%	37,336 $1.26 Million
Q1 2022 May 16, 2022	SELL	$40.45 - $70.45 $1.52 Million - $2.65 Million	-37,658 Reduced 21.64%	136,348 $7.22 Million
Q4 2021 Feb 14, 2022	BUY	$60.0 - $78.21 $2.72 Million - $3.55 Million	45,368 Added 35.27%	174,006 $12.3 Million
Q3 2021 Nov 15, 2021	BUY	$44.4 - $67.41 $1.71 Million - $2.6 Million	38,615 Added 42.89%	128,638 $7.94 Million
Q2 2021 Aug 16, 2021	BUY	$46.92 - $57.51 $2.73 Million - $3.35 Million	58,202 Added 182.9%	90,023 $4.83 Million
Q1 2021 May 17, 2021	SELL	$33.51 - $50.19 $5.18 Million - $7.75 Million	-154,456 Reduced 82.92%	31,821 $1.6 Million
Q4 2020 Feb 16, 2021	BUY	$22.47 - $34.71 $3.87 Million - $5.98 Million	172,165 Added 1219.99%	186,277 $5.77 Million
Q3 2020 Nov 16, 2020	BUY	$21.48 - $31.42 $303,125 - $443,399	14,112 New	14,112 $336,000

Others Institutions Holding MEG

# of Institutions

199

Shares Held

31.5M

Call Options Held

469K

Put Options Held

60.2K

View Full List

About Montrose Environmental Group, Inc.

Ticker MEG
Exchange NYSE
Sector Industrials
Industry Waste Management
Shares Outstandng 29,680,800
Market Cap $722M
Description
Montrose Environmental Group, Inc. operates as an environmental services company in the United States. The company operates in three segments: Assessment, Permitting and Response; Measurement and Analysis; and Remediation and Reuse. The Assessment, Permitting and Response segment provides scientific advisory and consulting services to support en...

More about MEG

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