AI Holders Summary · Q2 2026

242 institutions reported MRTN in Q2 2026. BlackRock, Inc. leads at 30.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(5 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$175M10.1M0.00%Q2 2026 02

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$64M4.9M0.01%Q1 2026 03

STATE STREET CORP

CIK 0000093751

$47M2.7M0.00%Q2 2026 04

AMERICAN CENTURY COMPANIES INC

CIK 0000748054

$34M2.6M0.02%Q1 2026 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$33M2.5M0.00%Q1 2026 06

FMR LLC

CIK 0000315066

$23M1.8M0.00%Q1 2026 07

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$19M1.5M0.00%Q1 2026 08

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$19M1.4M0.02%Q1 2026 09

Boston Partners

CIK 0001386060

$18M1.0M0.02%Q2 2026 10

MORGAN STANLEY

CIK 0000895421

$17M1.3M0.00%Q1 2026 11

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$17M1.3M0.00%Q1 2026 12

Russell Investments Group, Ltd.

CIK 0001692234

$16M922K0.01%Q2 2026 13

Vanguard Portfolio Management

CIK 0002100121· Index

$15M1.1M0.00%Q1 2026 14

ROYCE & ASSOCIATES LP

CIK 0000906304

$13M980K0.13%Q1 2026 15

AMERIPRISE FINANCIAL INC

CIK 0000820027

$13M970K0.00%Q1 2026 16

LONDON CO OF VIRGINIA

CIK 0001259887

$12M889K0.07%Q1 2026 17

DEPRINCE RACE & ZOLLO INC

CIK 0001008894

$10M768K0.19%Q1 2026 18

JPMORGAN CHASE & CO

CIK 0000019617

$10M769K0.00%Q1 2026 19

NUANCE INVESTMENTS, LLC

CIK 0001473182

$9M547K1.61%Q2 2026 20

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$9M677K0.00%Q1 2026

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