Polaryx Therapeutics, Inc. (PLYX) IPO - S-1 Filing, Stock & Insider Activity
Polaryx Therapeutics, Inc. IPO - Status & S-1 Filing
- Ticker: PLYX
- Status: Priced - IPO complete
- S-1 filed: 2025-11-21
- Effective: 2026-01-29
- IPO / pricing date: 2026-02-02
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- SEC CIK: 0002075320 · View the S-1 on SEC EDGAR →
Track every registration update on the InsiderAlpha IPO tracker.
Last SEC filing
Polaryx Therapeutics, Inc. (PLYX) has filed 1 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-29. Insiders disclosed 1 open-market purchases totaling $360K. 3 Form 8-K material event filings were reported by PLYX in the last 90 days. InsiderAlpha tracks every PLYX SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About Polaryx Therapeutics, Inc. (PLYX)
Polaryx Therapeutics, Inc. trades under the ticker PLYX. InsiderAlpha tracks 2 primary SEC Form 4 filings from 2 reporting insiders for PLYX since 2026, sourced directly from SEC EDGAR.
| SEC CIK | 0002075320 |
|---|
90-Day SEC Filing Activity
| Insider purchases (90d) | 1 ($360K) |
|---|---|
| Form 4 filings (90d) | 1 |
| Form 8-K filings (90d) | 3 |
| Latest Form 4 filing | 2026-05-29 |
Recent PLYX Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Alex Keun Mo Yang | Chief Executive Officer | P - Open-market purchase | 88.5K | $4.07 | $360K | SEC | |
| G. Michael Landis | Chief Financial Officer | P - Open-market purchase | 2.9K | $2.79 | $8K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Polaryx Therapeutics, Inc. (PLYX). Updated in real time as new filings are submitted to the SEC.
Most-Active PLYX Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Alex Keun Mo Yang | 1 | $360K |
Recent PLYX Form 8-K Material Events
Recent Insider Filings
- - Alex Keun Mo Yang (Chief Executive Officer)
- - G. Michael Landis (Chief Financial Officer)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in PLYX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
PLYX Insider Trading - FAQ
- What is the latest insider trade for PLYX?
- Polaryx Therapeutics, Inc. (PLYX) had 1 insider filings in the last 90 days, with the most recent on 2026-05-29. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying PLYX stock?
- 1 insider purchase of PLYX was filed in the last 90 days, totaling $360K.
- How many insiders are selling PLYX stock?
- 0 insider sales of PLYX were filed in the last 90 days.
- Where can I see PLYX SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks PLYX Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live PLYX dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.