Boston Partners’s Marten Transport MRTN Stock Holding History

Boston Partners’s Portfolio MRTN Stock Details MRTN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$18.2M	Sell	1,049,147 -650,668	-38%	-$10.3M	0.02%	403
2026 Q1	$22.3M	Buy	1,699,815 +780,253	+85%	+$10M	0.02%	362
2025 Q4	$10.5M	Buy	+919,562	New	+$9.76M	0.01%	423
2022 Q4	–	Sell	-21,088	Closed	-$404K	–	741
2022 Q3	$404K	Sell	21,088 -7,158	-25%	-$143K	﹤0.01%	628
2022 Q2	$475K	Buy	28,246 +4,200	+17%	+$72.3K	﹤0.01%	610
2022 Q1	$427K	Sell	24,046 -4,458	-16%	-$78.1K	﹤0.01%	633
2021 Q4	$489K	Sell	28,504 -23,211	-45%	-$384K	﹤0.01%	616
2021 Q3	$811K	Sell	51,715 -8,087	-14%	-$127K	﹤0.01%	549
2021 Q2	$987K	Sell	59,802 -19,190	-24%	-$327K	﹤0.01%	542
2021 Q1	$1.34M	Buy	+78,992	New	+$1.34M	﹤0.01%	537

Other funds holding MRTN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Boston Partners's MRTN Position: Q2 2026 in Review

Boston Partners reduced its Marten Transport (MRTN) stake by 38% in Q2 2026, selling an estimated $10.3M and leaving 1,049,147 shares worth $18.2M. The position accounts for 0.02% of the portfolio, ranked #403.

Boston Partners first reported a position in MRTN in Q1 2021 and has held it in 10 quarters since. The position peaked at $22.3M in Q1 2026. 229 funds tracked by Wall St. Rank hold MRTN as of Q2 2026.

Boston Partners held 1,049,147 shares of Marten Transport worth $18.2M as of Q2 2026.
Boston Partners sold 650,668 Marten Transport shares in Q2 2026, an estimated $10.3M.
Marten Transport made up 0.02% of Boston Partners's portfolio in Q2 2026, its #403 holding.
Boston Partners first reported a position in Marten Transport in Q1 2021 and has held it in 10 quarters since.
Boston Partners's Marten Transport position peaked at $22.3M in Q1 2026.
229 funds tracked by Wall St. Rank held Marten Transport as of Q2 2026.

Based on Boston Partners's 13F filing for Q2 2026, filed 4 Aug 2026.