AI Holders Summary · Q2 2026

241 institutions reported MDXG in Q2 2026. Essex Woodlands Management, Inc. leads at 29.4% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(6 on this page)

#HolderValueShares% port.Quarter

Essex Woodlands Management, Inc.

CIK 0001542339

$109M28.2M42.70%Q2 2026 02

BlackRock, Inc.

CIK 0002012383

$47M12.2M0.00%Q2 2026 03

Nantahala Capital Management, LLC

CIK 0001472322

$37M9.5M0.61%Q2 2026 04

Trigran Investments, Inc.

CIK 0001336800

$28M7.2M5.07%Q2 2026 05

STATE STREET CORP

CIK 0000093751

$21M5.6M0.00%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$20M5.2M0.00%Q2 2026 07

PARADIGM CAPITAL MANAGEMENT INC/NY

CIK 0001037792

$16M4.1M0.43%Q2 2026 08

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$12M3.1M0.00%Q2 2026 09

GOLDMAN SACHS GROUP INC

CIK 0000886982

$10M2.7M0.00%Q2 2026 10

AQR CAPITAL MANAGEMENT LLC

CIK 0001167557

$9M2.5M0.00%Q2 2026 11

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$9M2.4M0.01%Q2 2026 12

PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.

CIK 0001238990

$8M2.1M0.39%Q2 2026 13

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$7M1.9M0.00%Q2 2026 14

CANNELL CAPITAL LLC

CIK 0001058854

$7M1.9M4.83%Q2 2026 15

NORTHERN TRUST CORP

CIK 0000073124· Index

$5M1.3M0.00%Q2 2026 16

Vanguard Portfolio Management

CIK 0002100121· Index

$5M1.3M0.00%Q2 2026 17

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$5M1.3M0.00%Q2 2026 18

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$5M1.2M0.00%Q2 2026 19

Meros Investment Management, LP

CIK 0001911372

$4M1.1M1.37%Q2 2026 20

MORGAN STANLEY

CIK 0000895421

$4M1.0M0.00%Q2 2026

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