MARTEN TRANSPORT LTD (MRTN) — Institutional Holders, Q2 2026
231 institutional investment managers reported a MRTN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
MRTN in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- CRAMER ROSENTHAL MCGLYNNNew · +1,523,757 sh+$26.4M
- GOLDMAN SACHS GROUPAdded · +1,481,660 sh+$25.7M
- NuveenAdded · +1,293,727 sh+$22.4M
- FMRAdded · +933,232 sh+$16.2M
- BESSEMER GROUPNew · +873,519 sh+$15.2M
Biggest sellers
- NUANCE INVESTMENTSTrimmed · -4,263,549 sh-$74.0M
- Boston PartnersTrimmed · -650,668 sh-$11.3M
- 4D AdvisorsSold out · -350,000 sh-$6.1M
- FIRST ADVISORSTrimmed · -294,157 sh-$5.1M
- ALLIANCEBERNSTEIN L.P.Trimmed · -293,236 sh-$5.1M
MRTN 13F holders ranked 1–100 of 231
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 10,058,930 sh | 10,058,930 | $174.5M | <0.01% | +3.1% |
| 2 | DIMENSIONAL FUND ADVISORS#2 · 4,999,156 sh | 4,999,156 | $86.7M | 0.02% | +2.2% |
| 3 | AMERICAN CENTURY COMPANIES#3 · 2,800,863 sh | 2,800,863 | $48.6M | 0.02% | +6.9% |
| 4 | STATE STREET#4 · 2,723,602 sh | 2,723,602 | $47.3M | <0.01% | +4.9% |
| 5 | FMR#5 · 2,702,378 sh | 2,702,378 | $46.9M | <0.01% | +52.8% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 2,524,859 sh | 2,524,859 | $43.8M | <0.01% | +1.1% |
| 7 | GOLDMAN SACHS GROUP#7 · 2,101,794 sh | 2,101,794 | $36.5M | <0.01% | +238.9% |
| 8 | Nuveen#8 · 1,945,243 sh | 1,945,243 | $33.7M | <0.01% | +198.6% |
| 9 | TWO SIGMA INVESTMENTS#9 · 1,830,565 sh | 1,830,565 | $31.8M | 0.02% | +28.1% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 1,554,058 sh | 1,554,058 | $27.0M | <0.01% | +5.9% |
| 11 | CRAMER ROSENTHAL MCGLYNN#11 · 1,523,757 sh | 1,523,757 | $26.4M | 1.34% | New |
| 12 | ROYCE & ASSOCIATES#12 · 1,394,890 sh | 1,394,890 | $24.2M | 0.19% | +42.3% |
| 13 | MORGAN STANLEY#13 · 1,353,069 sh | 1,353,069 | $23.5M | <0.01% | +4.6% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT#14 · 1,218,980 sh | 1,218,980 | $21.1M | <0.01% | +9.4% |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT#15 · 1,198,050 sh | 1,198,050 | $20.8M | <0.01% | -6.0% |
| 16 | AMERIPRISE FINANCIAL#16 · 1,081,606 sh | 1,081,606 | $18.8M | <0.01% | +11.5% |
| 17 | Boston Partners#17 · 1,049,147 sh | 1,049,147 | $18.2M | 0.02% | -38.3% |
| 18 | Russell Investments Group, Ltd.#18 · 922,443 sh | 922,443 | $16.0M | 0.01% | -15.9% |
| 19 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#19 · 919,740 sh | 919,740 | $16.0M | <0.01% | +35.9% |
| 20 | BESSEMER GROUP#20 · 873,519 sh | 873,519 | $15.2M | 0.02% | New |
| 21 | LONDON OF VIRGINIA#21 · 853,969 sh | 853,969 | $14.8M | 0.08% | -4.0% |
| 22 | 12th Street Asset Management Company#22 · 758,634 sh | 758,634 | $13.2M | 1.88% | New |
| 23 | DEPRINCE RACE & ZOLLO#23 · 742,362 sh | 742,362 | $12.9M | — | -3.3% |
| 24 | CITADEL ADVISORS#24 · 722,251 sh | 722,251 | $12.5M | <0.01% | +7.9% |
| 25 | NEXT CENTURY GROWTH INVESTORS#25 · 699,305 sh | 699,305 | $12.1M | 0.64% | +67.1% |
| 26 | NORTHERN#26 · 667,681 sh | 667,681 | $11.6M | <0.01% | +6.6% |
| 27 | JPMORGAN CHASE#27 · 604,366 sh | 604,366 | $10.6M | <0.01% | -21.4% |
| 28 | NUANCE INVESTMENTS#28 · 546,871 sh | 546,871 | $9.5M | 1.61% | -88.6% |
| 29 | BANK OF AMERICA#29 · 486,041 sh | 486,041 | $8.4M | <0.01% | -12.8% |
| 30 | Creative Planning#30 · 419,369 sh | 419,369 | $7.3M | <0.01% | +5.2% |
| 31 | AQR CAPITAL MANAGEMENT#31 · 395,125 sh | 395,125 | $6.9M | <0.01% | +14.3% |
| 32 | VANGUARD FIDUCIARY#32 · 384,638 sh | 384,638 | $6.7M | <0.01% | +1.2% |
| 33 | NORGES BANK#33 · 379,000 sh | 379,000 | $6.6M | <0.01% | — |
| 34 | TEACHER RETIREMENT SYSTEM OF TEXAS#34 · 363,027 sh | 363,027 | $6.3M | 0.02% | -33.6% |
| 35 | HEARTLAND ADVISORS#35 · 350,000 sh | 350,000 | $6.1M | 0.27% | 0.0% |
| 36 | Bank of New York Mellon#36 · 329,668 sh | 329,668 | $5.7M | <0.01% | +2.5% |
| 37 | Invesco Ltd.#37 · 323,199 sh | 323,199 | $5.6M | <0.01% | -10.3% |
| 38 | NICHOLAS COMPANY#38 · 315,135 sh | 315,135 | $5.5M | 0.10% | -20.6% |
| 39 | MACKENZIE FINANCIAL#39 · 313,098 sh | 313,098 | $5.4M | <0.01% | New |
| 40 | PRINCIPAL FINANCIAL GROUP#40 · 279,992 sh | 279,992 | $4.9M | <0.01% | -0.5% |
| 41 | Stanley-Laman Group, Ltd.#41 · 270,445 sh | 270,445 | $4.7M | — | -0.7% |
| 42 | Buckland Partners Management#42 · 267,594 sh | 267,594 | $4.6M | 2.27% | 0.0% |
| 43 | Polar Asset Management Partners#43 · 255,800 sh | 255,800 | $4.4M | 0.07% | New |
| 44 | UBS Group AG#44 · 250,880 sh | 250,880 | $4.4M | <0.01% | +107.9% |
| 45 | Allianz Asset Management GmbH#45 · 241,291 sh | 241,291 | $4.2M | <0.01% | +10.1% |
| 46 | Aptus Capital Advisors#46 · 204,337 sh | 204,337 | $3.5M | 0.02% | New |
| 47 | US BANCORP \DE\#47 · 200,518 sh | 200,518 | $3.5M | <0.01% | -25.4% |
| 48 | PUBLIC SECTOR PENSION INVESTMENT BOARD#48 · 198,609 sh | 198,609 | $3.4M | <0.01% | -4.1% |
| 49 | RHUMBLINE ADVISERS#49 · 146,904 sh | 146,904 | $2.5M | <0.01% | -10.8% |
| 50 | Legal & General Group Plc#50 · 132,866 sh | 132,866 | $2.3M | <0.01% | -2.1% |
| 51 | Connor, Clark & Lunn Investment Management Ltd.#51 · 125,451 sh | 125,451 | $2.2M | <0.01% | +279.7% |
| 52 | Verition Fund Management#52 · 123,943 sh | 123,943 | $2.2M | <0.01% | -20.8% |
| 53 | Campbell & Investment Adviser#53 · 121,003 sh | 121,003 | $2.1M | 0.11% | +671.4% |
| 54 | SEI INVESTMENTS#54 · 120,557 sh | 120,557 | $2.1M | <0.01% | -45.3% |
| 55 | Swiss National Bank#55 · 114,475 sh | 114,475 | $2.0M | <0.01% | -5.1% |
| 56 | CastleKnight Management#56 · 108,400 sh | 108,400 | $1.9M | 0.03% | 0.0% |
| 57 | Mariner#57 · 107,420 sh | 107,420 | $1.9M | <0.01% | -62.4% |
| 58 | Hudson Bay Capital Management#58 · 106,780 sh | 106,780 | $1.9M | <0.01% | -47.4% |
| 59 | WINTON GROUP Ltd#59 · 92,430 sh | 92,430 | $1.6M | 0.05% | -17.5% |
| 60 | Fulcrum Asset Management LLP#60 · 85,530 sh | 85,530 | $1.5M | 0.15% | New |
| 61 | CITIGROUP#61 · 79,931 sh | 79,931 | $1.4M | <0.01% | +45.4% |
| 62 | Atria Investments#62 · 77,005 sh | 77,005 | $1.3M | — | New |
| 63 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#63 · 76,867 sh | 76,867 | $1.3M | <0.01% | -7.2% |
| 64 | CONFLUENCE INVESTMENT MANAGEMENT#64 · 75,256 sh | 75,256 | $1.3M | — | -6.6% |
| 65 | Quantinno Capital Management#65 · 75,197 sh | 75,197 | $1.3M | <0.01% | +22.2% |
| 66 | XTX Topco Ltd#66 · 73,829 sh | 73,829 | $1.3M | 0.02% | +149.2% |
| 67 | BARCLAYS PLC#67 · 72,525 sh | 72,525 | $1.3M | <0.01% | -10.2% |
| 68 | Treasurer of the State of North Carolina#68 · 70,791 sh | 70,791 | $1.2M | <0.01% | New |
| 69 | PRICE T ROWE ASSOCIATES#69 · 66,942 sh | 66,942 | $1.2M | <0.01% | +6.6% |
| 70 | DEUTSCHE BANK AG\#70 · 62,893 sh | 62,893 | $1.1M | <0.01% | +11.5% |
| 71 | MARTINGALE ASSET MANAGEMENT L P#71 · 61,900 sh | 61,900 | $1.1M | 0.03% | -3.0% |
| 72 | PRUDENTIAL FINANCIAL#72 · 60,673 sh | 60,673 | $1.1M | <0.01% | +1.2% |
| 73 | Ausbil Investment Management Ltd#73 · 56,438 sh | 56,438 | $984.8K | — | -21.9% |
| 74 | ENVESTNET ASSET MANAGEMENT#74 · 56,449 sh | 56,449 | $979.4K | <0.01% | +78.0% |
| 75 | MILLENNIUM MANAGEMENT#75 · 55,424 sh | 55,424 | $961.6K | <0.01% | New |
| 76 | EntryPoint Capital#76 · 54,331 sh | 54,331 | $942.6K | 0.23% | +39.3% |
| 77 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#77 · 53,716 sh | 53,716 | $932.0K | <0.01% | -41.7% |
| 78 | SG Americas Securities#78 · 51,234 sh | 51,234 | $889.0K | <0.01% | -36.5% |
| 79 | WELLS FARGO & COMPANY#79 · 51,089 sh | 51,089 | $886.4K | <0.01% | +126.4% |
| 80 | ALLIANCEBERNSTEIN L.P.#80 · 64,783 sh | 64,783 | $850.6K | <0.01% | -81.9% |
| 81 | PDT Partners#81 · 47,063 sh | 47,063 | $816.5K | 0.04% | 0.0% |
| 82 | Horizon Investments#82 · 46,453 sh | 46,453 | $806.0K | <0.01% | New |
| 83 | GREAT WEST LIFE ASSURANCE#83 · 45,504 sh | 45,504 | $790.0K | <0.01% | -8.2% |
| 84 | VANGUARD ASSET MANAGEMENT, Ltd#84 · 44,464 sh | 44,464 | $771.5K | <0.01% | 0.0% |
| 85 | MERCER GLOBAL ADVISORS#85 · 44,151 sh | 44,151 | $766.0K | <0.01% | +59.3% |
| 86 | HSBC PLC#86 · 43,719 sh | 43,719 | $760.7K | <0.01% | -44.7% |
| 87 | GSA CAPITAL PARTNERS LLP#87 · 43,805 sh | 43,805 | $760.0K | 0.05% | New |
| 88 | FRANKLIN RESOURCES#88 · 43,439 sh | 43,439 | $753.7K | <0.01% | +24.3% |
| 89 | Vanguard Personalized Indexing Management#89 · 40,477 sh | 40,477 | $702.3K | <0.01% | -4.7% |
| 90 | Inspire Investing#90 · 39,035 sh | 39,035 | $677.3K | — | -1.2% |
| 91 | THRIVENT FINANCIAL FOR LUTHERANS#91 · 38,039 sh | 38,039 | $660.0K | <0.01% | -1.6% |
| 92 | BNP PARIBAS FINANCIAL MARKETS#92 · 35,756 sh | 35,756 | $620.4K | <0.01% | +42.9% |
| 93 | MetLife Investment Management#93 · 34,991 sh | 34,991 | $607.1K | <0.01% | +21.5% |
| 94 | Simplicity Wealth#94 · 32,657 sh | 32,657 | $566.6K | — | New |
| 95 | Illinois Municipal Retirement Fund#95 · 30,133 sh | 30,133 | $522.8K | <0.01% | -10.3% |
| 96 | DARK FOREST CAPITAL MANAGEMENT#96 · 29,300 sh | 29,300 | $508.4K | 0.03% | +15.0% |
| 97 | Jupiter Topco#97 · 28,133 sh | 28,133 | $488.5K | <0.01% | — |
| 98 | MIRAE ASSET GLOBAL ETFS Ltd.#98 · 27,323 sh | 27,323 | $474.1K | <0.01% | -0.1% |
| 99 | Cetera Investment Advisers#99 · 27,292 sh | 27,292 | $473.5K | <0.01% | +8.2% |
| 100 | CANADA PENSION PLAN INVESTMENT BOARD#100 · 27,000 sh | 27,000 | $468.4K | <0.01% | 0.0% |
Funds that sold out of MRTN in Q2 2026 (31)
Held MRTN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| 4D Advisors350,000 sh | 350,000 | $4.6M |
| VOLORIDGE INVESTMENT MANAGEMENT159,568 sh | 159,568 | $2.1M |
| HRT FINANCIAL142,910 sh | 142,910 | $1.9M |
| Numerai GP88,533 sh | 88,533 | $1.2M |
| JANE STREET GROUP60,648 sh | 60,648 | $796.3K |
| HARBER ASSET MANAGEMENT45,342 sh | 45,342 | $595.3K |
| Squarepoint Ops44,495 sh | 44,495 | $584.2K |
| Voleon Capital Management41,680 sh | 41,680 | $547.3K |
| Point72 Asset Management, L.P.35,730 sh | 35,730 | $469.1K |
| D. E. Shaw32,322 sh | 32,322 | $424.4K |
| VARCOV30,108 sh | 30,108 | $395.3K |
| FOX RUN MANAGEMENT, L.L.C.17,163 sh | 17,163 | $220.7K |
| BALYASNY ASSET MANAGEMENT L.P.14,291 sh | 14,291 | $187.6K |
| Magnetar Financial13,270 sh | 13,270 | $174.2K |
| iSAM Funds (UK) Ltd12,879 sh | 12,879 | $169.1K |
| QUADRANT CAPITAL GROUP18,258 sh | 18,258 | $168.8K |
| Polymer Capital Management (US)12,607 sh | 12,607 | $165.5K |
| Aquatic Capital Management11,379 sh | 11,379 | $149.4K |
| Brevan Howard Capital Management11,011 sh | 11,011 | $144.6K |
| VICTORY CAPITAL MANAGEMENT10,204 sh | 10,204 | $134.0K |
| State of Wyoming5,150 sh | 5,150 | $67.6K |
| Independence Bank of Kentucky2,536 sh | 2,536 | $33.3K |
| Aster Capital Management (DIFC) Ltd724 sh | 724 | $9.9K |
| SIMPLEX TRADING608 sh | 608 | $8.0K |
| Advisory Services Network376 sh | 376 | $4.9K |
| MAI Capital Management202 sh | 202 | $2.7K |
| Root Financial Partners189 sh | 189 | $2.5K |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT129 sh | 129 | $1.7K |
| TWIN PEAKS WEALTH ADVISORS99 sh | 99 | $1.3K |
| Wealth Preservation Advisors64 sh | 64 | $840.00 |
| Sound Income Strategies11 sh | 11 | $147.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.