Lisa Bollinger - 29 Jan 2026 Form 3 Insider Report for Polaryx Therapeutics, Inc. (PLYX)

Role: Chief Medical Officer
Signature: /s/ G. Michael Landis, as attorney-in-fact for Lisa Bollinger
Issuer symbol: PLYX
Transactions as of: 29 Jan 2026
Net transactions value: $0
Form type: 3
Filing time: 29 Jan 2026, 16:43:49 UTC
Previous filing: 20 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Bollinger Lisa	Chief Medical Officer	SOUTH TOWER, 140 E RIDGEWOOD AVENUE,, SUITE 415, PARAMUS	/s/ G. Michael Landis, as attorney-in-fact for Lisa Bollinger	29 Jan 2026	0002024557

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	PLYX	Common Stock						150,358	29 Jan 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes 150,000 restricted stock units ("RSUs"), which will vest in four equal installments on November 15, 2026, November 15, 2027, November 15, 2028 and November 15, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries, Mstone Partners Healthcare Limited or its affiliates, or Curestone Partners Platform Limited or its affiliates. The RSUs are not deliverable unless and until the Issuer consummates a change in control within seven years of the grant date of such RSUs.

Content

Includes 150,000 restricted stock units ("RSUs"), which will vest in four equal installments on November 15, 2026, November 15, 2027, November 15, 2028 and November 15, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries, Mstone Partners Healthcare Limited or its affiliates, or Curestone Partners Platform Limited or its affiliates. The RSUs are not deliverable unless and until the Issuer consummates a change in control within seven years of the grant date of such RSUs.

Remarks:

Exhibit 24 - Power of Attorney