Ken Griffin
MRTN icon

Ken Griffin’s Marten Transport MRTN Stock Holding History

Ken Griffin’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
Q1 		$1.38M Buy
+105,300
New +$1.35M ﹤0.01% 6904
2025
Q4 		– Sell
-12,100
Closed -$129K – 13571
2025
Q3 		$129K Sell
12,100
-182,500
-94% -$2.22M ﹤0.01% 11650
2025
Q2 		$2.53M Buy
194,600
+110,900
+132% +$1.46M ﹤0.01% 5283
2025
Q1 		$1.15M Buy
83,700
+81,500
+3,705% +$1.21M ﹤0.01% 6661
2024
Q4 		$34.3K Buy
2,200
+1,500
+214% +$25K ﹤0.01% 12748
2024
Q3 		$12.4K Sell
700
-100
-13% -$1.75K ﹤0.01% 13107
2024
Q2 		$14.8K Buy
800
+200
+33% +$3.51K ﹤0.01% 12859
2024
Q1 		$11.1K Sell
600
-600
-50% -$11.5K ﹤0.01% 13430
2023
Q4 		$25.2K Sell
1,200
-11,400
-90% -$218K ﹤0.01% 12423
2023
Q3 		$248K Buy
12,600
+12,100
+2,420% +$256K ﹤0.01% 9511
2023
Q2 		$10.8K Sell
500
-800
-62% -$16.8K ﹤0.01% 13182
2023
Q1 		$27.2K Buy
1,300
+1,100
+550% +$23.4K ﹤0.01% 12819
2022
Q4 		$3.96K Buy
+200
New +$3.99K ﹤0.01% 14155

Other funds holding MRTN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
NI
Nuance Investments Kansas City, Missouri $588M AUM 6.93% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Ken Griffin's MRTN Position: Q1 2026 in Review

Ken Griffin reduced its Marten Transport (MRTN) stake by 4.5% in Q1 2026, selling an estimated $408K and leaving 669,343 shares worth $8.79M. The position accounts for ﹤0.01% of the portfolio, ranked #3437.

Ken Griffin first reported a position in MRTN in Q2 2013 and has held it in 45 quarters since. 225 funds tracked by Wall St. Rank hold MRTN as of Q1 2026.

  • Ken Griffin held 669,343 shares of Marten Transport worth $8.79M as of Q1 2026.
  • Ken Griffin sold 31,794 Marten Transport shares in Q1 2026, an estimated $408K.
  • Marten Transport made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #3437 holding.
  • Ken Griffin first reported a position in Marten Transport in Q2 2013 and has held it in 45 quarters since.
  • 225 funds tracked by Wall St. Rank held Marten Transport as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.