Insider · CIK 0002103399
Alex Keun Mo Yang
Files at PLYX (Polaryx Therapeutics, Inc.). First filing May 28, 2026, latest May 28, 2026.
In brief
Alex Keun Mo Yang files SEC Form 4 as CEO, director and 10% owner at PLYX (Polaryx Therapeutics, Inc.). Since May 28, 2026, Alex Keun Mo Yang has reported 1 open-market buy worth $360k and 0 open-market sells worth $0, the latest filed on May 28, 2026.
A track record needs three past buys with six months of prices behind them; Alex Keun Mo Yang has 0, so none is measured yet.
The newest scored trade: bought $360k of PLYX on May 27, 2026, filed May 28, 2026, scored 53 (moderate). In the last 12 months: 1 buy worth $360k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
PLYX: Polaryx Therapeutics, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 53Moderate | PLYXbuy Polaryx Therapeutics, Inc. | $360k 88,453 shares | +0% | +4% from low-93% from high |
Transactions
Every row this insider has filed, 1 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 27, 2026 | PLYX Polaryx Therapeutics, Inc. | POpen-market purchase Common Stockindirect: By Mstone Partners Healthcare Limited | +88,453 | $4.07 | $360k | 24,233,249 | May 28, 2026 |
Questions about Alex Keun Mo Yang
Answered from the filings on this page, as of the latest one.
Is Alex Keun Mo Yang buying or selling?
In the last 12 months Alex Keun Mo Yang reported 1 open-market buy worth $360k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $360k of PLYX on May 27, 2026. Grants, option exercises and tax withholding are not counted.
How did Alex Keun Mo Yang's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Alex Keun Mo Yang has 0.
Where does Alex Keun Mo Yang file Form 4?
Alex Keun Mo Yang has filed Form 4 at PLYX (Polaryx Therapeutics, Inc.) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.