AI Holders Summary · Q1 2026

82 institutions reported PYXS in Q1 2026. PFIZER INC leads at 23.5% 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

PFIZER INC

CIK 0000078003

$9M7.0M3.86%Q1 2026 02

Laurion Capital Management LP

CIK 0001390202

$7M5.0M0.32%Q1 2026 03

GordonMD Global Investments LP

CIK 0002039349

$6M4.1M4.19%Q1 2026 04

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$3M2.0M0.00%Q1 2026 05

Atle Fund Management AB

CIK 0001381843⚠ data anomaly

$3M966K0.78%Q2 2026 06

Palo Alto Investors LP

CIK 0001306923

$1M1.0M0.23%Q1 2026 07

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$1M889K0.00%Q1 2026 08

BlackRock, Inc.

CIK 0002012383

$1M789K0.00%Q1 2026 09

683 Capital Management, LLC

CIK 0001404574

$1M892K0.04%Q4 2025 10

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$874K598K0.00%Q1 2026 11

Longaeva Partners L.P.

CIK 0002054122

$735K503K0.03%Q1 2026 12

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 0000884414

$673K461K0.00%Q1 2026 13

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$581K398K0.00%Q1 2026 14

JANE STREET GROUP, LLC

CIK 0001595888· Market maker

$482K330K0.00%Q1 2026 15

Decheng Capital LLC

CIK 0002010850

$477K327K0.07%Q1 2026 16

MARSHALL WACE, LLP

CIK 0001318757

$448K390K0.00%Q4 2025 17

VANGUARD FIDUCIARY TRUST CO

CIK 0000933478· Index

$439K301K0.00%Q1 2026 18

CITADEL ADVISORS LLC

CIK 0001423053

$435K378K0.00%Q4 2025 19

UBS Group AG

CIK 0001610520

$371K254K0.00%Q1 2026 20

STATE STREET CORP

CIK 0000093751

$363K249K0.00%Q1 2026

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