AI Holders Summary · Q1 2026

131 institutions reported CLFD in Q1 2026. BlackRock, Inc. leads at 13.9% 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

$24M898K0.00%Q1 2026 02

ACK Asset Management LLC

CIK 0001510940

$19M735K2.43%Q1 2026 03

MAIRS & POWER INC

CIK 0001070134

$19M732K0.20%Q1 2026 04

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$13M510K0.00%Q1 2026 05

Vanguard Portfolio Management

CIK 0002100121· Index

$9M356K0.00%Q1 2026 06

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$9M353K0.00%Q1 2026 07

STATE STREET CORP

CIK 0000093751

$9M322K0.00%Q1 2026 08

PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.

CIK 0001238990

$8M290K0.44%Q1 2026 09

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$8M286K0.00%Q1 2026 10

ROYAL BANK OF CANADA

CIK 0001000275

$7M282K0.00%Q1 2026 11

ROYCE & ASSOCIATES LP

CIK 0000906304

$7M257K0.07%Q1 2026 12

JPMORGAN CHASE & CO

CIK 0000019617

$6M231K0.00%Q1 2026 13

Dana Investment Advisors, Inc.

CIK 0001427514

$5M179K0.14%Q1 2026 14

MARSHALL WACE, LLP

CIK 0001318757

$4M153K0.00%Q4 2025 15

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$4M162K0.01%Q1 2026 16

Ancora Advisors LLC

CIK 0001446114

$4M144K0.09%Q4 2025 17

D. E. Shaw & Co., Inc.

CIK 0001009207

$4M135K0.00%Q4 2025 18

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$4M137K0.01%Q1 2026 19

CITADEL ADVISORS LLC

CIK 0001423053

$3M119K0.00%Q4 2025 20

NORTHERN TRUST CORP

CIK 0000073124· Index

$3M122K0.00%Q1 2026

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