AI Holders Summary · Q2 2026

140 institutions reported SPOK in Q2 2026. BlackRock, Inc. leads at 19.1% 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

BlackRock, Inc.

CIK 0002012383

$18M1.7M0.00%Q2 2026 02

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$12M1.1M0.02%Q2 2026 03

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$9M872K0.00%Q2 2026 04

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$7M718K0.00%Q2 2026 05

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$6M596K0.00%Q2 2026 06

Foundry Partners, LLC

CIK 0001573913

$6M360K0.31%Q1 2025 07

STATE STREET CORP

CIK 0000093751

$5M472K0.00%Q2 2026 08

HighTower Advisors, LLC

CIK 0001462245

$3M340K0.00%Q2 2026 09

Qube Research & Technologies Ltd

CIK 0001729829

$3M288K0.00%Q2 2026 10

GOLDMAN SACHS GROUP INC

CIK 0000886982

$3M282K0.00%Q2 2026 11

Vanguard Portfolio Management

CIK 0002100121· Index

$3M273K0.00%Q2 2026 12

Bank of New York Mellon Corp

CIK 0001390777

$2M234K0.00%Q2 2026 13

CSM Advisors, LLC

CIK 0001863523

$2M213K0.06%Q1 2026 14

NORTHERN TRUST CORP

CIK 0000073124· Index

$2M223K0.00%Q2 2026 15

Uniplan Investment Counsel, Inc.

CIK 0001520710

$2M216K0.21%Q2 2026 16

UNITED CAPITAL FINANCIAL ADVISORS, LLC

CIK 0001463217

$2M195K0.01%Q2 2026 17

CITADEL ADVISORS LLC

CIK 0001423053

$2M183K0.00%Q2 2026 18

MORGAN STANLEY

CIK 0000895421

$2M167K0.00%Q2 2026 19

VANGUARD FIDUCIARY TRUST CO

CIK 0000933478· Index

$1M137K0.00%Q2 2026 20

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 0000884414

$1M117K0.01%Q1 2026

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