AI Holders Summary · Q1 2026

310 institutions reported ALRM in Q1 2026. BlackRock, Inc. leads at 26.4% 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

$395M9.1M0.01%Q1 2026 02

Vanguard Portfolio Management

CIK 0002100121· Index

$171M4.0M0.01%Q1 2026 03

DISCIPLINED GROWTH INVESTORS INC /MN

CIK 0001050442

$141M3.3M2.89%Q1 2026 04

BANK OF MONTREAL /CAN/

CIK 0000927971

$119M2.8M0.04%Q1 2026 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$93M2.2M0.00%Q1 2026 06

STATE STREET CORP

CIK 0000093751

$88M2.0M0.00%Q1 2026 07

MORGAN STANLEY

CIK 0000895421

$55M1.3M0.00%Q1 2026 08

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$54M1.3M0.00%Q1 2026 09

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$48M1.1M0.01%Q1 2026 10

GENEVA CAPITAL MANAGEMENT LLC

CIK 0001009232

$46M1.1M0.98%Q1 2026 11

FMR LLC

CIK 0000315066

$42M969K0.00%Q1 2026 12

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$34M779K0.02%Q1 2026 13

GOLDMAN SACHS GROUP INC

CIK 0000886982

$31M715K0.00%Q1 2026 14

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$29M681K0.02%Q1 2026 15

NORTHERN TRUST CORP

CIK 0000073124· Index

$28M642K0.00%Q1 2026 16

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$27M629K0.00%Q1 2026 17

RIVERBRIDGE PARTNERS LLC

CIK 0001112325

$26M593K0.63%Q1 2026 18

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$25M580K0.00%Q1 2026 19

ALGERT GLOBAL LLC

CIK 0001275218

$23M526K0.34%Q1 2026 20

SG Americas Securities, LLC

CIK 0001313360

$21M483K0.02%Q1 2026

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