AI Holders Summary · Q4 2025

140 institutions reported QTRX in Q4 2025. Portolan Capital Management, LLC leads at 23.3% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(3 on this page)

#HolderValueShares% port.Quarter

Portolan Capital Management, LLC

CIK 0001350290

$29M4.5M1.54%Q4 2025 02

AMERIPRISE FINANCIAL INC

CIK 0000820027

$12M3.5M0.00%Q1 2026 03

BlackRock, Inc.

CIK 0002012383

$12M3.3M0.00%Q1 2026 04

Invenomic Capital Management LP

CIK 0001769456

$10M1.5M0.45%Q4 2025 05

Blue Water Life Science Advisors, LP

CIK 0001789778

$8M2.1M6.05%Q1 2026 06

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK 0001644956

$7M2.1M0.02%Q1 2026 07

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$6M1.8M0.00%Q1 2026 08

Kent Lake PR LLC

CIK 0002037231

$5M1.0M2.75%Q3 2025 09

LEVIN CAPITAL STRATEGIES, L.P.

CIK 0001354821

$5M1.5M0.39%Q1 2026 10

First Eagle Investment Management, LLC

CIK 0001325447

$5M1.3M0.01%Q1 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$4M995K0.00%Q1 2026 12

STATE STREET CORP

CIK 0000093751

$3M898K0.00%Q1 2026 13

Empire Financial Management Company, LLC

CIK 0001971875

$3M736K0.59%Q1 2026 14

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$2M689K0.00%Q1 2026 15

ENVESTNET ASSET MANAGEMENT INC

CIK 0001407543

$2M683K0.00%Q1 2026 16

Russell Investments Group, Ltd.

CIK 0001692234

$2M642K0.00%Q1 2026 17

Williams Jones Wealth Management, LLC.

CIK 0001788587

$2M613K0.03%Q1 2026 18

MORGAN STANLEY

CIK 0000895421

$2M608K0.00%Q1 2026 19

Vanguard Portfolio Management

CIK 0002100121· Index

$2M577K0.00%Q1 2026 20

Tikvah Management LLC

CIK 0001606477

$2M572K0.62%Q1 2026

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