AI Holders Summary · Q1 2026

291 institutions reported TNDM in Q1 2026. BlackRock, Inc. leads at 17.9% 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

$205M10.7M0.00%Q1 2026 02

UBS Group AG

CIK 0001610520

$139M7.2M0.02%Q1 2026 03

Sessa Capital IM, L.P.

CIK 0001595849

$91M4.7M1.65%Q1 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$77M4.0M0.00%Q1 2026 05

ArrowMark Colorado Holdings LLC

CIK 0001483859

$64M2.9M1.40%Q4 2025 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$58M3.0M0.00%Q1 2026 07

GW&K Investment Management, LLC

CIK 0001082917

$52M2.7M0.45%Q1 2026 08

STATE STREET CORP

CIK 0000093751

$51M2.7M0.00%Q1 2026 09

CITADEL ADVISORS LLC

CIK 0001423053

$47M2.2M0.01%Q4 2025 10

JENNISON ASSOCIATES LLC

CIK 0000053417

$44M2.0M0.03%Q4 2025 11

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 0000938206

$44M2.3M0.32%Q1 2026 12

GOLDMAN SACHS GROUP INC

CIK 0000886982

$43M2.2M0.00%Q1 2026 13

Paradice Investment Management LLC

CIK 0001620275

$39M2.0M7.35%Q1 2026 14

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$36M1.9M0.03%Q1 2026 15

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$32M1.7M0.00%Q1 2026 16

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 0000884414

$29M1.5M0.12%Q1 2026 17

MORGAN STANLEY

CIK 0000895421

$26M1.4M0.00%Q1 2026 18

Freestone Grove Partners LP

CIK 0002007591

$26M1.3M0.18%Q1 2026 19

First Light Asset Management, LLC

CIK 0001600004

$25M1.3M2.26%Q1 2026 20

BAILLIE GIFFORD & CO

CIK 0001088875

$21M1.1M0.02%Q1 2026

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