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Changes in Beneficial Ownership · 4

ADARx Pharmaceuticals, Inc.

ADRXNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Sep 30, 2026Accepted Sep 30, 2026, 5:29 PM EDTFiling CIK 1802369Accession 0000947871-26-000912
Share

Structured filing — 4

ownership.xml

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Filing details

Report period
2026-09-28
Issuer
ADARx Pharmaceuticals, Inc.
Issuer CIK
0001802369
Trading symbol
ADRX

Reporting owner 1

Name
Chimovits Erez
Reporting owner CIK
0001706399
Relationship
Director
Address
C/O ADARX PHARMACEUTICALS, INC., 5871 OBERLIN DRIVE, SUITE 200, SAN DIEGO, CA, 92121

Non-derivative transactions

Non-derivative transactions · 5 reported rows
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnershipNature of ownership
Common Stock2026-09-28C · Form 47,127,019A[F1]7,127,019ISee footnotes[F3][F4]
Common Stock2026-09-28C · Form 41,333,975A[F1]8,460,994ISee footnotes[F3][F4]
Common Stock2026-09-28C · Form 4513,067A[F1]8,974,061ISee footnotes[F3][F4]
Common Stock2026-09-28C · Form 4256,448A[F1]9,230,509ISee footnotes[F3][F4]
Common Stock2026-09-28P · Form 461,516[F2]A17.009,292,025ISee footnotes[F3][F4]
Table key
C · Form 4
Derivative conversion
A
Acquired
I
Indirect
P · Form 4
Purchase on the market or privately

Derivative transactions

Derivative transactions · 4 reported rows
SecurityConversion / exercise price (USD)Transaction dateCodeAmountA / DPrice (USD)ExercisableExpiresUnderlying securityUnderlying sharesOwned afterOwnershipNature of ownership
Series A Preferred Stock[F1]2026-09-28C · Form 47,127,019D0[F1][F1]Common Stock7,127,0190ISee footnotes[F3][F4]
Series B Preferred Stock[F1]2026-09-28C · Form 41,333,975D0[F1][F1]Common Stock1,333,9750ISee footnotes[F3][F4]
Series B-1 Preferred Stock[F1]2026-09-28C · Form 4513,067D0[F1][F1]Common Stock513,0670ISee footnotes[F3][F4]
Series C Preferred Stock[F1]2026-09-28C · Form 4256,448D0[F1][F1]Common Stock256,4480ISee footnotes[F3][F4]
Table key
C · Form 4
Derivative conversion
D
Disposed
I
Indirect

Footnotes

F1
Each share of Series A Preferred Stock, Series B Preferred Stock, Series B-1 Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted on a 1-for-1.1717 basis into shares of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. Share numbers give effect to such conversion. The Preferred Stock has no expiration date.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7↩ 8↩ 9↩ 10↩ 11↩ 12↩ 13↩ 14↩ 15↩ 16
F2
Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering.↩ 1
F3
These securities are held directly by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("Israel GP") is the general partner of OIP II. OrbiMed Advisors Israel II Limited ("Advisors Israel") is the general partner of Israel GP. By virtue of such relationships, Israel GP and Advisors Israel may be deemed to have voting power and investment power over the securities held by OIP II and as a result, may be deemed to have beneficial ownership over such securities. Advisors Israel exercises this investment and voting power through a management committee comprised of Carl L. Gordon, David P. Bonita, and the Reporting Person, each of whom disclaims beneficial ownership of the shares held by OIP II.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7↩ 8↩ 9
F4
Each of the Reporting Person, Israel GP, and Advisors Israel disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of such entity or person is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7↩ 8↩ 9

Signature 1

Signed
/s/ Erez Chimovits
Date
2026-09-30

Company context

We are a late-clinical stage biotechnology company focused on developing next-generation siRNA therapeutics designed to treat a broad spectrum of diseases. We are focused on advancing and expanding our pipeline of highly potent, selective and durable siRNA therapeutic candidates, including three clinical-stage programs and two advanced preclinical programs. Our goal is to control the expression of specific disease drivers with highly selective RNA targeted therapies, delivering life-changing treatments for patients with urgent unmet medical needs. Our team is united by a shared vision to build a leading next-generation siRNA therapeutics company.

Current securities

Recent company filings

  1. SCHEDULE 13D - filed by ORBIMED ADVISORS LLC regarding ADARx Pharmaceuticals, Inc.Oct 2, 2026
  2. 4 filingSep 30, 2026
  3. 4 filingSep 29, 2026
  4. S-8 filingSep 28, 2026
  5. 4 filingSep 28, 2026

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