PLYX

Polaryx Therapeutics Inc Cross-source read$2.02 1.00%
Health CareCUSIP 73110F100· EOD Sep 8, 2026

Among active 13F managers last quarter, 4 opened and none reduced or exited; the largest holder to move was Millennium Management LLC (new position). Over the last 180 days, 1 insider bought and none sold, a net +$360K in open-market trades.

Tracked 13F holders
15
13F value (tracked)
$7.1M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
4 adding · 0 trimming
Insiders · Form 4 open-market, 180d
1 buying · 0 selling · +$360K
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$2.02 1.00%1Y -77.1%
$1.72$10.70$19.69$28.67$37.65Jan 2026MarAprJunJulSep3
Hover for who · click for detailEnd-of-day closing prices52w $1.87 – $35.00

Who owns PLYX?

15 tracked 13F filers · ranked by shares held

15 tracked 13F filers disclose a position in PLYX as of the latest SEC 13F filings, a combined $7.1M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Vanguard Capital Management LLC1.7M
$4.4M
~0%
Reduced · −516 sh
Q2 2026
2Geode Capital Management, LLC171K
$455K
+0.2%
Added · +325 sh
Q2 2026
3Millennium Management LLC128K
$964K
New
+128K sh
Q1 2026
4Vanguard Fiduciary Trust Co105K
$279K
+0.5%
Added · +516 sh
Q2 2026
5State Street Corp58K
$155K
Held
Q2 2026
6BlackRock, Inc.41K
$109K
Held
Q2 2026
7Northern Trust Corp28K
$212K
New
+28K sh
Q1 2026
8Bank Of America Corp26K
$196K
New
+26K sh
Q1 2026
9Goldman Sachs Group Inc13K
$102K
New
+13K sh
Q1 2026
10UBS Group AG13K
$102K
New
+13K sh
Q1 2026
11Squarepoint Ops LLC12K
$94K
New
+12K sh
Q1 2026
12Vanguard Global Advisers, LLC6K
$17K
Held
Q2 2026
13Morgan Stanley6K
$42K
New
+6K sh
Q1 2026
14Tower Research Capital LLC (TRC)2K
$13K
New
+2K sh
Q1 2026
15Fortitude Family Office, LLC189
$503
New
+189 sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is PLYX being bought or sold by institutions?

Last quarter, 4 funds opened a new position in PLYX, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
4
funds took a first position
Biggest moves · ranked by size of the change, positions above a floor

Funds that own PLYX also own

CompanyCo-held byTheir position there
Nvidia CorpNVDA4 funds$2.7B
Microsoft CorpMSFT4 funds$2.2B
Apple IncAAPL4 funds$2.0B
Norfolk Southern CorpNSC4 funds$1.5B
Meta Platforms Inc-Class AMETA4 funds$1.4B
Warner Bros Discovery IncWBD4 funds$1.3B
Amazon.com IncAMZN4 funds$1.3B
Tesla IncTSLA4 funds$1.3B
Alphabet Inc-CL AGOOGL4 funds$1.2B
Broadcom IncAVGO4 funds$1.0B
Electronic Arts IncEA4 funds$1.0B
Sandisk CorpSNDK4 funds$917.8M

Ranked by how many of PLYX's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in PLYX.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$360K
1 insider
Net · 180d
$360K
1 open-market transaction
DateInsiderRoleActionSharesValue
May 27, 2026Yang Alex Keun MoChief Executive Officer, Director, 10% OwnerBuy (P)88K$360K
Feb 18, 2026Landis G. MichaelChief Financial Officer, DirectorBuy (P)3K$8K

Do institutions, insiders and Congress agree?

Confluence: insiders and funds buying

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
21
Insiders
Form 4 open-market
10+$360K
US House
STOCK Act trades
00$0
Sector rotation
PLYX is in Health Care, which smart money is rotating OUT OF
$5.0B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Recent filings

2 most recent

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Connected entities for PLYX

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Ask your agent what changed in PLYX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/PLYX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for PLYX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PLYX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.