MARTEN TRANSPORT LTD MRTN
CIK 0000799167 · CUSIP 573075108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $95.16M 8,927,115 shares | 0.00% | +219.17K(+2.50%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | NUANCE INVESTMENTS, LLC CIK 1473182 · View history | $65.26M 6,122,415 shares | 6.65% | +376.49K(+6.60%)Added | SEC filing ↗ Nov 6, 2025 | ▾ |
| 03 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $54.64M 5,126,178 shares | 0.01% | -156.78K(-3.00%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 04 | VANGUARD GROUP INC CIK 102909 · View history | $45.22M 4,241,782 shares | 0.00% | +32.84K(+0.80%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
| 05 | GENEVA CAPITAL MANAGEMENT LLC CIK 1009232 · View history | $35.00M 3,283,646 shares | 0.60% | -71.55K(-2.10%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $25.86M 2,425,762 shares | 0.00% | +21.08K(+0.90%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 07 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $23.67M 2,220,666 shares | 0.01% | +133.26K(+6.40%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 08 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $15.66M 1,468,811 shares | 0.00% | +6.90K(+0.50%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 09 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $11.87M 1,113,441 shares | 0.00% | +34.86K(+3.20%)Added | SEC filing ↗ Nov 10, 2025 | ▾ |
| 10 | MORGAN STANLEY CIK 895421 · Amended · View history | $11.18M 1,048,334 shares | 0.00% | +13.88K(+1.30%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 11 | AMERIPRISE FINANCIAL INC CIK 820027 · View history | $9.83M 921,818 shares | 0.00% | +518.28K(+128.40%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 12 | LONDON CO OF VIRGINIA CIK 1259887 · View history | $9.54M 894,559 shares | 0.05% | -78.39K(-8.10%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 13 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $8.83M 828,224 shares | 0.00% | +29.09K(+3.60%)Added | SEC filing ↗ Nov 26, 2025 | ▾ |
| 14 | Nuveen, LLC CIK 1871926 · View history | $7.27M 682,224 shares | 0.00% | +67.56K(+11.00%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 15 | NORTHERN TRUST CORP CIK 73124 · View history | $6.71M 629,890 shares | 0.00% | -21.50K(-3.30%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 16 | Bank of New York Mellon Corp CIK 1390777 · View history | $6.46M 605,613 shares | 0.00% | -65.20K(-9.70%)Reduced | SEC filing ↗ Nov 3, 2025 | ▾ |
| 17 | TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history | $6.28M 589,469 shares | 0.01% | +284.45K(+93.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 18 | FMR LLC CIK 315066 · View history | $5.74M 538,907 shares | 0.00% | +55.28K(+11.40%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 19 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $5.51M 516,897 shares | 0.01% | +249.55K(+93.30%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 20 | DEPRINCE RACE & ZOLLO INC CIK 1008894 · View history | $5.03M 471,419 shares | 0.10% | +5.64K(+1.20%)Added | SEC filing ↗ Oct 17, 2025 | ▾ |
Showing 20 / 216 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 216 reporting institutions.
This page includes 20 of 216 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 216 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"573075108","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.