Who owns Marten Transport, Ltd.?
Institutional ownership of MRTN from SEC Form 13F filings across 161 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
161
13F holders
$773.7M
value, 2026 filers
56.1%
of shares outstanding (45.7M sh)
30
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of MRTN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 10.1M | $174.5M | 0.0% | 12.3% | +3.1% |
| 2 | AMERICAN CENTURY COMPANIES INC | 2.8M | $48.6M | 0.0% | 3.4% | +6.9% |
| 3 | FMR LLC | 2.7M | $46.9M | 0.0% | 3.3% | +52.8% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.5M | $43.8M | 0.0% | 3.1% | -49.4% |
| 5 | GOLDMAN SACHS GROUP INC | 2.1M | $36.5M | 0.0% | 2.6% | +238.9% |
| 6 | Nuveen, LLC | 1.9M | $33.7M | 0.0% | 2.4% | +198.6% |
| 7 | TWO SIGMA INVESTMENTS, LP | 1.8M | $31.8M | 0.0% | 2.2% | +28.1% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.6M | $27.0M | 0.0% | 1.9% | +5.9% |
| 9 | CRAMER ROSENTHAL MCGLYNN LLCNEW | 1.5M | $26.4M | 1.3% | 1.9% | new |
| 10 | MORGAN STANLEY | 1.4M | $23.5M | 0.0% | 1.7% | +4.6% |
| 11 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.2M | $21.1M | 0.0% | 1.5% | +9.4% |
| 12 | Sixth Street Partners Management Company, L.P.NEW | 1.2M | $20.8M | 3.6% | 1.5% | new |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | $20.8M | 0.0% | 1.5% | -6.0% |
| 14 | AMERIPRISE FINANCIAL INC | 1.1M | $18.8M | 0.0% | 1.3% | +11.5% |
| 15 | Russell Investments Group, Ltd. | 922,443 | $16.0M | 0.0% | 1.1% | -15.9% |
| 16 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 919,740 | $16.0M | 0.0% | 1.1% | +35.9% |
| 17 | BESSEMER GROUP INC | 873,519 | $15,153 | 0.0% | 1.1% | +507759.9% |
| 18 | CITADEL ADVISORS LLC | 722,251 | $12.5M | 0.0% | 0.9% | +7.9% |
| 19 | NORTHERN TRUST CORP | 667,681 | $11.6M | 0.0% | 0.8% | +6.6% |
| 20 | JPMORGAN CHASE & CO | 604,366 | $10.6M | 0.0% | 0.7% | -21.4% |
| 21 | BANK OF AMERICA CORP /DE/ | 486,041 | $8.4M | 0.0% | 0.6% | -12.8% |
| 22 | Creative Planning | 419,369 | $7.3M | 0.0% | 0.5% | +5.2% |
| 23 | Public Sector Pension Investment Board | 397,218 | $6.9M | 0.0% | 0.5% | +91.8% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 384,638 | $6.7M | 0.0% | 0.5% | +1.2% |
| 25 | NORGES BANKNEW | 379,000 | $6.6M | 0.0% | 0.5% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.