MARTEN TRANSPORT LTD (MRTN) Institutional Ownership Changes & 13F Activity

MARTEN TRANSPORT LTD (MRTN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Goldman Sachs Group Inc, Ameriprise Financial Inc, Royce & Associates Lp, Two Sigma Investments, Lp, and Invesco Ltd..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncBuy+24,741+78.0%56,449$979.39KQ2 2026Sep 23, 2026
State Street CorpBuy+126,055+4.9%2,723,602$47.25MQ2 2026Sep 22, 2026
Anchor Investment Management, LlcBuy+732—732$12.70KQ2 2026Sep 15, 2026
Manufacturers Life Insurance Company, TheSell-98-0.6%16,496$286.21KQ2 2026Sep 09, 2026
Citadel Advisors LlcBuy+52,908+7.9%722,251$12.53MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+22,162+10.1%241,291$4.19MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemBuy+3,202+5.7%58,980$1.02MQ2 2026Aug 24, 2026
Deprince Race & Zollo IncSell-25,324-3.3%742,362$12.88MQ2 2026Aug 20, 2026
Mercer Global Advisors IncBuy+16,441+59.3%44,151$766.03KQ2 2026Aug 19, 2026
Fulcrum Asset Management LlpBuy+85,530—85,530$1.50MQ2 2026Aug 18, 2026
Public Employees Retirement System Of OhioBuy+76+2.7%2,935$50.92KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+32+88.9%68$1.18KQ2 2026Aug 17, 2026
Goldman Sachs Group IncBuy+1,481,660+238.9%2,101,794$36.47MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+1,081,606—1,081,606$18.77MQ2 2026Aug 14, 2026
Royce & Associates LpBuy+414,680+42.3%1,394,890$24.20MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+401,084+28.1%1,830,565$31.76MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+323,199—323,199$5.61MQ2 2026Aug 14, 2026
Alliancebernstein L.P.Sell-293,236-81.9%64,783$850.60KQ2 2026Aug 14, 2026
Next Century Growth Investors LlcBuy+280,934+67.1%699,305$12.13MQ2 2026Aug 14, 2026
Polar Asset Management Partners Inc.Buy+255,800—255,800$4.44MQ2 2026Aug 14, 2026
Teacher Retirement System Of TexasSell-183,783-33.6%363,027$6.30MQ2 2026Aug 14, 2026
Raymond James Financial IncSell-108,496-84.3%20,131$349.27KQ2 2026Aug 14, 2026
Sei Investments CoSell-99,757-45.3%120,557$2.09MQ2 2026Aug 14, 2026
Hudson Bay Capital Management LpSell-96,327-47.4%106,780$1.85MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncSell-76,337-6.0%1,198,050$20.79MQ2 2026Aug 14, 2026
Bank Of America CorpSell-71,055-12.8%486,041$8.43MQ2 2026Aug 14, 2026
Treasurer Of The State Of North CarolinaBuy+70,791—70,791$1.23MQ2 2026Aug 14, 2026
Trexquant Investment LpSell-63,848-85.7%10,662$184.99KQ2 2026Aug 14, 2026
Millennium Management LlcBuy+55,424—55,424$961.61KQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+49,338+14.3%395,125$6.86MQ2 2026Aug 14, 2026
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Frequently asked questions about MRTN activity

  • Which institutional owners are buying MRTN?

    Institutional owners buying MRTN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MRTN activity?

    "Buy" means an investor increased their reported position in MRTN compared to the prior reporting period. This reflects growing exposure to MARTEN TRANSPORT LTD (MRTN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MRTN increasing?

    Institutional interest in MRTN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.