William Blair Investment Management, LLC Marten Transport LTD Transaction History

William Blair Investment Management, LLC

$34.7 Billion
Q2 2025

A detailed history of William Blair Investment Management, LLC transactions in Marten Transport LTD stock. As of the latest transaction made, William Blair Investment Management, LLC holds 1,320,316 shares of MRTN stock, worth $16 Million. This represents 0.05% of its overall portfolio holdings.

Number of Shares

1,320,316

Previous 1,430,899 7.73%

Holding current value

$16 Million

Previous $19.6 Million 12.64%

% of portfolio

0.05%

Previous 0.06%

17 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Jul 29, 2025	SELL	$12.69 - $13.95 $1.4 Million - $1.54 Million	-110,583 Reduced 7.73%	1,320,316 $17.2 Million
Q1 2025 May 09, 2025	SELL	$13.63 - $16.49 $834,742 - $1.01 Million	-61,243 Reduced 4.1%	1,430,899 $19.6 Million
Q4 2024 Feb 10, 2025	BUY	$15.48 - $18.26 $484,570 - $571,592	31,303 Added 2.14%	1,492,142 $23.3 Million
Q3 2024 Nov 08, 2024	SELL	$16.64 - $18.94 $749,931 - $853,587	-45,068 Reduced 2.99%	1,460,839 $25.9 Million
Q2 2024 Aug 08, 2024	SELL	$15.97 - $18.45 $49,299 - $56,955	-3,087 Reduced 0.2%	1,505,907 $27.8 Million
Q1 2024 May 08, 2024	SELL	$18.09 - $20.66 $24,982 - $28,531	-1,381 Reduced 0.09%	1,508,994 $27.9 Million
Q4 2023 Feb 09, 2024	SELL	$17.4 - $21.32 $523,792 - $641,795	-30,103 Reduced 1.95%	1,510,375 $31.7 Million
Q3 2023 Nov 09, 2023	SELL	$19.5 - $23.11 $2.36 Million - $2.79 Million	-120,930 Reduced 7.28%	1,540,478 $30.4 Million
Q2 2023 Aug 10, 2023	BUY	$19.64 - $22.32 $607,229 - $690,089	30,918 Added 1.9%	1,661,408 $35.7 Million
Q1 2023 May 12, 2023	BUY	$19.32 - $23.18 $112,906 - $135,463	5,844 Added 0.36%	1,630,490 $34.2 Million
Q4 2022 Feb 09, 2023	SELL	$17.76 - $21.49 $1.09 Million - $1.31 Million	-61,163 Reduced 3.63%	1,624,646 $32.1 Million
Q3 2022 Nov 09, 2022	SELL	$16.5 - $23.38 $800,844 - $1.13 Million	-48,536 Reduced 2.8%	1,685,809 $32.3 Million
Q2 2022 Aug 10, 2022	SELL	$15.87 - $18.87 $797,308 - $948,028	-50,240 Reduced 2.82%	1,734,345 $29.2 Million
Q1 2022 May 11, 2022	SELL	$16.08 - $19.83 $406,486 - $501,282	-25,279 Reduced 1.4%	1,784,585 $31.7 Million
Q4 2021 Feb 14, 2022	SELL	$15.03 - $17.61 $2.26 Million - $2.65 Million	-150,441 Reduced 7.67%	1,809,864 $31.1 Million
Q3 2021 Nov 10, 2021	BUY	$14.87 - $16.81 $29.1 Million - $32.9 Million	1,956,355 Added 49527.97%	1,960,305 $30.8 Million
Q2 2021 Aug 12, 2021	BUY	$16.29 - $17.8 $64,345 - $70,310	3,950 New	3,950 $65,000

Others Institutions Holding MRTN

# of Institutions

227

Shares Held

57.3M

Call Options Held

383K

Put Options Held

455K

View Full List

About MARTEN TRANSPORT LTD

Ticker MRTN
Exchange NASDAQ
Sector Industrials
Industry Trucking
Shares Outstandng 81,096,600
Market Cap $983M
Description
Marten Transport, Ltd. operates as a temperature-sensitive truckload carrier for shippers in the United States, Canada, and Mexico. It operates through four segments: Truckload, Dedicated, Intermodal, and Brokerage. The Truckload segment transports food and other consumer packaged goods that require a temperature-controlled or insulated environm...

More about MRTN

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William Blair Investment Management, LLC Marten Transport LTD Transaction History