AI Holders Summary · Q1 2026

357 institutions reported GKOS in Q1 2026. BlackRock, Inc. leads at 22.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(4 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$979M9.1M0.02%Q1 2026 02

JANUS HENDERSON GROUP PLC

CIK 0001274173

$576M5.3M0.27%Q1 2026 03

PRIMECAP MANAGEMENT CO/CA/

CIK 0000763212

$363M3.4M0.29%Q1 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$345M3.2M0.02%Q1 2026 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$270M2.5M0.01%Q1 2026 06

STATE STREET CORP

CIK 0000093751

$235M2.2M0.01%Q1 2026 07

AMERIPRISE FINANCIAL INC

CIK 0000820027

$173M1.6M0.04%Q1 2026 08

ALLIANCEBERNSTEIN L.P.

CIK 0001109448

$158M1.4M0.05%Q1 2026 09

Holocene Advisors, LP

CIK 0001700574

$149M1.4M0.36%Q1 2026 10

GOLDMAN SACHS GROUP INC

CIK 0000886982

$148M1.4M0.02%Q1 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$146M1.4M0.01%Q1 2026 12

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$133M1.2M0.06%Q1 2026 13

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK 0001644956

$116M1.1M0.38%Q1 2026 14

Capital World Investors

CIK 0001422849

$106M989K0.01%Q1 2026 15

Invesco Ltd.

CIK 0000914208

$98M914K0.01%Q1 2026 16

BRAIDWELL LP

CIK 0001920938

$82M764K2.74%Q1 2026 17

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$77M714K0.01%Q1 2026 18

MORGAN STANLEY

CIK 0000895421

$73M679K0.00%Q1 2026 19

BANK OF AMERICA CORP /DE/

CIK 0000070858

$71M657K0.01%Q1 2026 20

Delaware Management Holdings, Inc.

CIK 0000921739

$66M612K0.11%Q1 2026

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