AI Holders Summary · Q1 2026

317 institutions reported EXTR in Q1 2026. BlackRock, Inc. leads at 22.8% 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

BlackRock, Inc.

CIK 0002012383

$304M20.2M0.01%Q1 2026 02

Vanguard Portfolio Management

CIK 0002100121· Index

$205M13.6M0.01%Q1 2026 03

STATE STREET CORP

CIK 0000093751

$97M6.4M0.00%Q1 2026 04

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$87M5.8M0.00%Q1 2026 05

PARADIGM CAPITAL MANAGEMENT INC/NY

CIK 0001037792

$79M5.2M3.02%Q1 2026 06

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$50M3.3M0.00%Q1 2026 07

FMR LLC

CIK 0000315066

$50M3.3M0.00%Q1 2026 08

Alyeska Investment Group, L.P.

CIK 0001453072

$49M3.0M0.14%Q4 2025 09

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$49M3.2M0.03%Q1 2026 10

GOLDMAN SACHS GROUP INC

CIK 0000886982

$47M3.1M0.01%Q1 2026 11

Trigran Investments, Inc.

CIK 0001336800

$43M2.8M10.27%Q1 2026 12

LOOMIS SAYLES & CO L P

CIK 0000312348

$41M2.7M0.06%Q1 2026 13

BARROW HANLEY MEWHINNEY & STRAUSS LLC

CIK 0000313028

$40M2.7M0.13%Q1 2026 14

SOUTHERNSUN ASSET MANAGEMENT, LLC

CIK 0001089755

$35M2.3M5.02%Q1 2026 15

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$31M2.1M0.05%Q1 2026 16

MORGAN STANLEY

CIK 0000895421

$27M1.8M0.00%Q1 2026 17

ALLIANCEBERNSTEIN L.P.

CIK 0001109448

$27M1.6M0.01%Q1 2026 18

VICTORY CAPITAL MANAGEMENT INC

CIK 0001040188

$25M1.7M0.02%Q1 2026 19

D. E. Shaw & Co., Inc.

CIK 0001009207

$24M1.4M0.01%Q4 2025 20

Nuveen, LLC

CIK 0001871926

$24M1.6M0.01%Q1 2026

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