Latest Period
Q1 2026
Security Snapshot
MARTEN TRANSPORT LTD - Common Stock (MRTN) Institutional Ownership
CUSIP: 573075108
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
223
Shares (Excl. Options)
57,857,508
Price
$13.13
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- Security type / class
- Equity / Common Stock
- Symbol
- MRTN on Nasdaq
- Shares outstanding
- 81,580,346
- Reported price per share
- $14.79
- Price from insider filings
- $14.79
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 57,857,508
- Total reported value
- $758,832,266
- Portfolio coverage rank
- 0%
- Share change
- +1,007,979
- Value change
- +$18,808,045
- Number of holders
- 223
Security identity
Issuer context
Latest holder snapshot
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- MRTN - MARTEN TRANSPORT LTD - Common Stock is tracked under CUSIP 573075108.
- 223 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 205 to 223 between Q4 2025 and Q1 2026.
- Reported value moved from $647,932,103 to $758,832,266.
Research use
- 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.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 223 institutions filings for Q1 2026.
Security key
573075108
Latest holder period
Q1 2026
13F holders
223
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
MRTN full holder history
MARTEN TRANSPORT LTD SEC filings
MARTEN TRANSPORT LTD company facts
MARTEN TRANSPORT LTD insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 573075108:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
MRTN
| 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 Mar 2026, 223 institutional investors reported holding 57,857,508 shares of MARTEN TRANSPORT LTD - Common Stock (MRTN). This represents 71% of the company’s total 81,580,346 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
57%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 12% | 9,760,018 | +0.94% | 0% | $128,149,033 |
| DIMENSIONAL FUND ADVISORS LP | 6% | 4,893,498 | +0.78% | 0.01% | $64,250,271 |
| NUANCE INVESTMENTS, LLC | 5.9% | 4,810,420 | -23% | 8.8% | $63,160,816 |
| AMERICAN CENTURY COMPANIES INC | 3.2% | 2,619,968 | +11% | 0.02% | $34,400,180 |
| STATE STREET CORP | 3.2% | 2,597,547 | +6.4% | 0% | $34,105,792 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.1% | 2,496,685 | 0% | 0% | $32,781,474 |
| FMR LLC | 2.2% | 1,769,146 | +168% | 0% | $23,228,881 |
| Boston Partners | 2.1% | 1,699,815 | +85% | 0.02% | $22,322,776 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 1,468,054 | +2.4% | 0% | $19,277,498 |
| TWO SIGMA INVESTMENTS, LP | 1.8% | 1,429,481 | +66% | 0.02% | $18,769,086 |
| MORGAN STANLEY | 1.6% | 1,294,142 | -3.7% | 0% | $16,992,109 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.6% | 1,274,387 | +3.4% | 0% | $16,732,701 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4% | 1,113,827 | 0% | 0% | $14,624,549 |
| Russell Investments Group, Ltd. | 1.3% | 1,097,390 | +19% | 0.02% | $14,408,733 |
| ROYCE & ASSOCIATES LP | 1.2% | 980,210 | +250% | 0.13% | $12,870,157 |
| AMERIPRISE FINANCIAL INC | 1.2% | 969,980 | -2.7% | 0% | $12,740,604 |
| LONDON CO OF VIRGINIA | 1.1% | 889,273 | +5.8% | 0.07% | $11,676,174 |
| JPMORGAN CHASE & CO | 0.94% | 769,161 | +43% | 0% | $9,891,411 |
| DEPRINCE RACE & ZOLLO INC | 0.94% | 767,686 | +11% | 0.19% | $10,079,717 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.83% | 676,584 | +8% | 0% | $8,883,548 |
| CITADEL ADVISORS LLC | 0.82% | 669,343 | -4.5% | 0.01% | $8,788,473 |
| Nuveen, LLC | 0.8% | 651,516 | -4.5% | 0% | $8,554,405 |
| NORTHERN TRUST CORP | 0.77% | 626,320 | +3.8% | 0% | $8,223,582 |
| GOLDMAN SACHS GROUP INC | 0.76% | 620,134 | +54% | 0% | $8,142,364 |
| BANK OF AMERICA CORP /DE/ | 0.68% | 557,096 | +49% | 0% | $7,314,671 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 57,857,508 | $758,832,266 | +$18,808,045 | $13.13 | 223 |
| 2025 Q4 | 56,932,671 | $647,932,103 | +$14,648,207 | $11.38 | 205 |
| 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 |