AI Holders Summary · Q2 2026

105 institutions reported FORR in Q2 2026. Portolan Capital Management, LLC leads at 16.8% 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

$14M1.6M0.51%Q2 2026 02

Nantahala Capital Management, LLC

CIK 0001472322

$13M1.5M0.21%Q2 2026 03

FIRST MANHATTAN CO. LLC.

CIK 0000728083

$6M750K0.02%Q2 2026 04

Pacific Ridge Capital Partners, LLC

CIK 0001591546

$6M705K1.08%Q2 2026 05

Russell Investments Group, Ltd.

CIK 0001692234

$5M427K0.00%Q3 2026 06

Tieton Capital Management, LLC

CIK 0001381954

$4M539K1.50%Q4 2025 07

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$4M500K0.00%Q2 2026 08

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$4M418K0.00%Q2 2026 09

AQR CAPITAL MANAGEMENT LLC

CIK 0001167557

$3M358K0.00%Q2 2026 10

Quantinno Capital Management LP

CIK 0001759654

$2M289K0.00%Q2 2026 11

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$2M423K0.00%Q1 2026 12

BlackRock, Inc.

CIK 0002012383

$2M270K0.00%Q2 2026 13

Ancora Advisors LLC

CIK 0001446114

$2M270K0.04%Q2 2026 14

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$2M195K0.00%Q3 2026 15

HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC

CIK 0001164833

$2M384K0.01%Q1 2026 16

Invenomic Capital Management LP

CIK 0001769456

$2M259K0.10%Q4 2025 17

ArrowMark Colorado Holdings LLC

CIK 0001483859

$2M232K0.08%Q2 2026 18

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$2M160K0.00%Q3 2026 19

SEI INVESTMENTS CO

CIK 0000350894

$2M200K0.00%Q2 2026 20

MORGAN STANLEY

CIK 0000895421

$1M164K0.00%Q2 2026

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