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Polaryx Therapeutics Inc (PLYX)

CUSIP: 73110F100 | NYSE | 19 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026
CompareDetailedHistoricalFundsOptionsShort Interest13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13DAlex Keun Mo Yang
with Mstone Partners Healthcare Limited, MBstone Biotech Flagship Limited, Mstone Pediaorphan Singapore I Pte. Limited
22,744,79648.0%New 5%+ stakeJan 29, 2026No 13F filer matched
13D

Institutional Holders — Q3 2026

Geode Capital Management, LLC138,757
0.0% of portfolio›$287.4K
Allworth Financial LP7,727
0.0% of portfolio›$20.6K
UBS Group AG4,355
0.0% of portfolio›$9.0K
Barclays PLC9
0.0% of portfolio›$19
StyleTurnoverLocationFiled
Geode Capital Management, LLC
138,757$287.4K0.0%IndexVery LowBoston, MA2026-11-06
Allworth Financial LP
7,727$20.6K0.0%ETFLowFolsom, CA2026-11-06
UBS Group AG
4,355$9.0K0.0%CoreMediumZurich, Switzerland2026-11-10
Barclays PLC
9$190.0%GrowthMediumLondon, United Kingdom2026-11-06
Alex Keun Mo Yang
22,744,796
48.0% of class · Jan 29, 2026New 5%+ stake
with Mstone Partners Healthcare Limited, MBstone Biotech Flagship Limited, Mstone Pediaorphan Singapore I Pte. Limited
No 13F filer matched