AI Holders Summary · Q1 2026

225 institutions reported AMPL in Q1 2026. WELLINGTON MANAGEMENT GROUP LLP leads at 16.2% 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

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$76M11.2M0.01%Q1 2026 02

BlackRock, Inc.

CIK 0002012383

$69M10.2M0.00%Q1 2026 03

Vanguard Portfolio Management

CIK 0002100121· Index

$42M6.2M0.00%Q1 2026 04

TimesSquare Capital Management, LLC

CIK 0001313816

$29M2.5M0.44%Q4 2025 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$28M4.1M0.00%Q1 2026 06

FMR LLC

CIK 0000315066

$23M3.3M0.00%Q1 2026 07

SC US (TTGP), LTD.

CIK 0001607841

$19M2.8M0.21%Q1 2026 08

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$18M2.7M0.01%Q1 2026 09

BAILLIE GIFFORD & CO

CIK 0001088875

$18M2.6M0.02%Q1 2026 10

CITADEL ADVISORS LLC

CIK 0001423053

$17M1.5M0.00%Q4 2025 11

Nuveen, LLC

CIK 0001871926

$17M2.6M0.00%Q1 2026 12

ArrowMark Colorado Holdings LLC

CIK 0001483859

$17M1.5M0.38%Q4 2025 13

STATE STREET CORP

CIK 0000093751

$17M2.4M0.00%Q1 2026 14

Point72 Asset Management, L.P.

CIK 0001603466

$16M2.4M0.02%Q1 2026 15

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$16M2.3M0.00%Q1 2026 16

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 0000884414

$12M1.7M0.05%Q1 2026 17

Optimus Prime Fund Management Co., Ltd.

CIK 0001732539

$11M1.6M1.04%Q1 2026 18

MONIMUS CAPITAL MANAGEMENT, LP

CIK 0001848831

$9M1.3M2.39%Q1 2026 19

AQR CAPITAL MANAGEMENT LLC

CIK 0001167557

$8M1.2M0.00%Q1 2026 20

Meros Investment Management, LP

CIK 0001911372

$8M1.2M3.44%Q1 2026

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