13F Insight
DOSSIER · 13F Holders · Q1 2026
PLYX

POLARYX THERAPEUTICS INC

15 institutions still hold POLARYX THERAPEUTICS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 73110F100·15 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$17M
visible holders
Holders
15
filers reporting
Concentration
73.14%
VANGUARD CAPITAL MANAGEMENT LLC #1
top holder share
AI Holders Summary · Q1 2026

15 institutions reported PLYX in Q1 2026. VANGUARD CAPITAL MANAGEMENT LLC leads at 73.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$13M1.7M0.00%Q1 202602
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$1M171K0.00%Q1 202603
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$964K128K0.00%Q1 202604
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$790K105K0.00%Q1 202605
STATE STREET CORP
CIK 0000093751
$439K58K0.00%Q1 202606
BlackRock, Inc.
CIK 0002012383
$310K41K0.00%Q1 202607
NORTHERN TRUST CORP
CIK 0000073124· Index
$212K28K0.00%Q1 202608
BANK OF AMERICA CORP /DE/
CIK 0000070858
$196K26K0.00%Q1 202609
GOLDMAN SACHS GROUP INC
CIK 0000886982
$102K13K0.00%Q1 202610
UBS Group AG
CIK 0001610520
$102K13K0.00%Q1 202611
Squarepoint Ops LLC
CIK 0001642575
$94K12K0.00%Q1 202612
Vanguard Global Advisers, LLC
CIK 0001811242· Index
$48K6K0.00%Q1 202613
MORGAN STANLEY
CIK 0000895421
$42K6K0.00%Q1 202614
Tower Research Capital LLC (TRC)
CIK 0001533421
$13K2K0.00%Q1 202615
Fortitude Family Office, LLC
CIK 0001950506
$5031890.00%Q2 2026