Security Snapshot

MARTEN TRANSPORT LTD - Common Stock (MRTN) Institutional Ownership

CUSIP: 573075108

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

204

Shares (Excl. Options)

56,932,103

Price

$11.38

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Type / Class
Equity / Common Stock
Symbol
MRTN on Nasdaq
Shares outstanding
81,580,346
Price per share
$14.14
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
56,932,103
Total reported value
$647,925,639
% of total 13F portfolios
0%
Share change
+1,169,579
Value change
+$14,650,335
Number of holders
204
Price from insider filings
$14.14
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • MRTN - MARTEN TRANSPORT LTD - Common Stock is tracked under CUSIP 573075108.
  • 204 institutions reported positions in Q4 2025.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 204 to 86 between Q4 2025 and Q1 2026.
  • Reported value moved from $647,925,639 to $261,170,494.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 204 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 573075108?
CUSIP 573075108 identifies MRTN - MARTEN TRANSPORT LTD - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of MARTEN TRANSPORT LTD - Common Stock (MRTN) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
DIMENSIONAL FUND ADVISORS LP 6% $55,258,773 4,855,737 Dimensional Fund Advisors LP 31 Dec 2025
VANGUARD GROUP INC 4.9% $45,676,911 4,013,753 The Vanguard Group 31 Dec 2025
VICTORY CAPITAL MANAGEMENT INC 3.9% -22% $43,631,952 -$12,148,530 3,184,814 -22% Victory Capital Management, Inc. 30 Jun 2025

As of 31 Dec 2025, 204 institutional investors reported holding 56,932,103 shares of MARTEN TRANSPORT LTD - Common Stock (MRTN). This represents 70% of the company’s total 81,580,346 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of MARTEN TRANSPORT LTD - Common Stock (MRTN) together control 57% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 12% 9,669,430 +8.3% 0% $110,038,117
NUANCE INVESTMENTS, LLC 7.7% 6,267,340 +2.4% 7.9% $71,322,324
DIMENSIONAL FUND ADVISORS LP 6% 4,855,737 -5.3% 0.01% $55,258,789
VANGUARD GROUP INC 4.9% 4,013,753 -5.4% 0% $45,676,509
STATE STREET CORP 3% 2,442,309 +0.68% 0% $27,793,476
AMERICAN CENTURY COMPANIES INC 2.9% 2,369,634 +6.7% 0.01% $26,966,435
GENEVA CAPITAL MANAGEMENT LLC 2.3% 1,868,567 -43% 0.4% $21,264,295
GEODE CAPITAL MANAGEMENT, LLC 1.8% 1,433,512 -2.4% 0% $16,313,772
MORGAN STANLEY 1.6% 1,343,771 +28% 0% $15,292,134
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.5% 1,232,442 +11% 0% $14,025,190
AMERIPRISE FINANCIAL INC 1.2% 997,369 +8.2% 0% $11,350,059
Russell Investments Group, Ltd. 1.1% 924,406 +129% 0.01% $10,519,731
Boston Partners 1.1% 919,562 0.01% $10,466,160
TWO SIGMA INVESTMENTS, LP 1.1% 862,356 +46% 0.01% $9,813,611
LONDON CO OF VIRGINIA 1% 840,576 -6% 0.06% $9,565,774
CITADEL ADVISORS LLC 0.86% 701,137 +60% 0.01% $7,978,939
DEPRINCE RACE & ZOLLO INC 0.85% 693,270 +47% 0.15% $7,889,412
Nuveen, LLC 0.84% 682,224 0% 0% $7,763,709
FMR LLC 0.81% 660,803 +23% 0% $7,519,937
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.77% 626,320 +65% 0% $7,127,522
NORTHERN TRUST CORP 0.74% 603,319 -4.2% 0% $6,865,769
TWO SIGMA ADVISERS, LP 0.74% 601,116 +132% 0.01% $6,840,700
JPMORGAN CHASE & CO 0.66% 537,909 -35% 0% $6,121,405
Invesco Ltd. 0.6% 489,394 +17% 0% $5,569,304
TEACHER RETIREMENT SYSTEM OF TEXAS 0.6% 487,595 +22% 0.02% $5,548,830

Institutional Holders of MARTEN TRANSPORT LTD - Common Stock (MRTN) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 19,891,906 $261,170,494 -$36,905,580 $13.13 86
2025 Q4 56,932,103 $647,925,639 +$14,650,335 $11.38 204
2025 Q3 55,755,832 $594,351,380 -$23,093,296 $10.66 214
2025 Q2 57,432,124 $746,026,442 -$3,326,672 $12.99 210
2025 Q1 57,661,090 $791,055,213 -$4,676,268 $13.72 192
2024 Q4 57,538,872 $898,185,452 +$15,624,573 $15.61 195
2024 Q3 56,453,362 $999,194,162 -$725,076 $17.70 198
2024 Q2 56,374,305 $1,040,086,864 +$6,276,407 $18.45 190
2024 Q1 56,056,203 $1,036,043,005 -$4,664,428 $18.48 201
2023 Q4 56,402,983 $1,183,338,089 +$20,748,468 $20.98 189
2023 Q3 54,938,364 $1,082,685,121 -$311,933 $19.71 191
2023 Q2 54,867,717 $1,180,118,617 +$7,997,735 $21.50 194
2023 Q1 54,551,033 $1,142,435,188 +$1,191,609 $20.95 203
2022 Q4 54,715,493 $1,082,256,214 -$8,941,876 $19.78 211
2022 Q3 55,792,465 $1,069,302,582 -$4,119,748 $19.16 201
2022 Q2 56,180,746 $944,993,058 -$3,617,867 $16.82 182
2022 Q1 56,405,218 $1,002,180,181 -$11,457,880 $17.76 187
2021 Q4 57,000,400 $977,913,936 -$5,401,523 $17.16 185
2021 Q3 57,366,240 $901,393,808 +$22,598,851 $15.69 182
2021 Q2 57,866,067 $954,060,223 +$1,328,336 $16.49 192
2021 Q1 57,913,042 $983,047,036 -$6,151,650 $16.97 206
2020 Q4 58,162,245 $1,002,106,208 +$66,178 $17.23 198
2020 Q3 58,289,919 $951,320,609 +$302,019,262 $16.32 197
2020 Q2 39,246,970 $987,516,612 +$3,177,752 $25.16 180
2020 Q1 39,216,087 $804,759,351 -$21,992,396 $20.52 160
2019 Q4 38,348,063 $824,100,701 -$3,845,832 $21.49 164
2019 Q3 38,460,432 $798,300,993 +$2,386,136 $20.78 174
2019 Q2 37,880,693 $686,476,501 +$6,993,553 $18.15 166
2019 Q1 38,394,371 $684,577,270 +$7,778,794 $17.83 160
2018 Q4 37,957,031 $614,941,657 -$10,898,615 $16.19 162
2018 Q3 38,359,372 $806,870,977 -$15,265,763 $21.05 159
2018 Q2 38,895,557 $911,280,735 +$27,682,784 $23.45 164
2018 Q1 37,275,057 $849,856,196 +$13,154,222 $22.80 167
2017 Q4 36,871,278 $748,699,196 -$10,146,913 $20.30 156
2017 Q3 37,294,418 $766,208,520 +$289,989,521 $20.55 142
2017 Q2 22,196,902 $608,186,607 +$12,818,717 $27.40 128
2017 Q1 22,351,303 $524,122,507 +$74,235,826 $23.45 129
2016 Q4 21,795,615 $507,853,255 -$14,191,632 $23.30 140
2016 Q3 22,469,868 $471,824,112 +$2,043,725 $21.00 136
2016 Q2 22,399,444 $443,532,639 +$19,300,473 $19.80 139
2016 Q1 21,433,570 $400,854,924 -$11,998,227 $18.72 138
2015 Q4 22,500,703 $398,229,454 -$9,000,464 $17.70 121
2015 Q3 23,115,166 $373,849,673 +$21,802 $16.17 130
2015 Q2 22,752,769 $492,895,014 -$13,910,143 $21.70 130
2015 Q1 22,911,362 $531,148,821 +$15,144,523 $23.20 115
2014 Q4 23,083,998 $504,201,069 +$24,041,305 $21.86 112
2014 Q3 21,946,369 $390,861,943 -$14,285,717 $17.81 123
2014 Q2 22,319,534 $497,982,180 +$3,216,014 $22.35 133
2014 Q1 22,186,679 $478,440,717 -$10,110,707 $21.52 121
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