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ADARx Pharmaceuticals: OrbiMed fund buys 61,516 shares

The IPO closing triggered automatic conversion of the preferred stock without further consideration.

(High)

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Form Type
4

Rhea-AI Filing Summary

ADARx Pharmaceuticals, Inc. director Erez Chimovits reported that OrbiMed Israel Partners II, L.P. purchased 61,516 common shares at $17 per share in the IPO on September 28, 2026. The entity’s Series A, Series B, Series B-1 and Series C preferred stock automatically converted into common stock at a 1-for-1.1717 ratio upon the IPO closing, without further consideration; each reported preferred-stock position was zero after conversion. OIP II held the securities directly. OrbiMed Advisors Israel II Limited exercised voting and investment power through a committee comprising Chimovits, Carl L. Gordon and David P. Bonita; all three disclaimed beneficial ownership, and Chimovits’s disclaimer was except to the extent of any pecuniary interest.

Insights

Analyzing...

Insider Chimovits Erez
Role Director
Bought 61,516 shs ($1.05M)
Type Security Shares Price Value
Conversion Series A Preferred Stock F1, F3, F4 7,127,019 $0.00 $0.00
Conversion Series B Preferred Stock F1, F3, F4 1,333,975 $0.00 $0.00
Conversion Series B-1 Preferred Stock F1, F3, F4 513,067 $0.00 $0.00
Conversion Series C Preferred Stock F1, F3, F4 256,448 $0.00 $0.00
Conversion Common Stock F1, F3, F4 7,127,019 -- --
Conversion Common Stock F1, F3, F4 1,333,975 -- --
Conversion Common Stock F1, F3, F4 513,067 -- --
Conversion Common Stock F1, F3, F4 256,448 -- --
Purchase Common Stock F2, F3, F4 61,516 $17.00 $1.05M
Holdings After Transaction: Series A Preferred Stock — 0 contracts (Indirect, See footnotes); Series B Preferred Stock — 0 contracts (Indirect, See footnotes); Series B-1 Preferred Stock — 0 contracts (Indirect, See footnotes); Series C Preferred Stock — 0 contracts (Indirect, See footnotes); Common Stock — 9,292,025 shares (Indirect, See footnotes)
Footnotes (4)
  1. 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.
  2. F2. Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering.
  3. 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.
  4. 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.
Common shares purchased 61,516 shares OrbiMed Israel Partners II, L.P. purchase in the IPO on September 28, 2026
Purchase price $17 per share OrbiMed Israel Partners II, L.P. common-stock purchase in the IPO
Preferred-stock conversion ratio 1-for-1.1717 Automatic conversion into common stock upon the IPO closing
Common shares from Series A conversion 7,127,019 shares September 28, 2026; share numbers give effect to conversion
Common shares from Series B conversion 1,333,975 shares September 28, 2026; share numbers give effect to conversion
Common shares from Series B-1 conversion 513,067 shares September 28, 2026; share numbers give effect to conversion
Common shares from Series C conversion 256,448 shares September 28, 2026; share numbers give effect to conversion
initial public offering financial
"the Issuer's initial public offering"
An initial public offering (IPO) is when a private company first sells its shares to the public and becomes a stock-listed company. It matters because it allows the company to raise money from a wide range of investors, helping it grow, while giving early shareholders a way to sell some of their ownership.
beneficial ownership regulatory
"disclaims beneficial ownership of the shares held by OIP II"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"except to the extent of its pecuniary interest therein"
general partner financial
"is the general partner of OIP II"
A general partner is the person or firm that runs an investment partnership and legally represents it — they make the day-to-day decisions, choose which assets to buy or sell, and are responsible for the partnership’s obligations. Investors care because the general partner’s judgment, risk-taking and fee and profit-sharing arrangements determine both the potential returns and the level of exposure to losses; think of the GP as the ship’s captain whose skill and honesty shape the voyage’s outcome.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ADRX shares did OrbiMed Israel Partners II buy, and at what price?

OrbiMed Israel Partners II, L.P. purchased 61,516 ADARx common shares at $17 per share in the IPO on September 28, 2026. No Rule 10b5-1 plan is reported. The securities were held directly by OIP II, and director Erez Chimovits disclaimed beneficial ownership except to the extent of any pecuniary interest.

How many common shares came from each ADARx preferred series?

The reported conversions resulted in 7,127,019 common shares from Series A, 1,333,975 from Series B, 513,067 from Series B-1, and 256,448 from Series C. The share numbers give effect to the conversion.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Chimovits Erez

(Last)(First)(Middle)
C/O ADARX PHARMACEUTICALS, INC.
5871 OBERLIN DRIVE, SUITE 200

(Street)
SAN DIEGO CALIFORNIA 92121

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
ADARx Pharmaceuticals, Inc. [ ADRX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/28/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/28/2026C7,127,019A(1)7,127,019ISee footnotes(3)(4)
Common Stock09/28/2026C1,333,975A(1)8,460,994ISee footnotes(3)(4)
Common Stock09/28/2026C513,067A(1)8,974,061ISee footnotes(3)(4)
Common Stock09/28/2026C256,448A(1)9,230,509ISee footnotes(3)(4)
Common Stock09/28/2026P61,516(2)A$179,292,025ISee footnotes(3)(4)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Series A Preferred Stock(1)09/28/2026C7,127,019 (1) (1)Common Stock7,127,019$00ISee footnotes(3)(4)
Series B Preferred Stock(1)09/28/2026C1,333,975 (1) (1)Common Stock1,333,975$00ISee footnotes(3)(4)
Series B-1 Preferred Stock(1)09/28/2026C513,067 (1) (1)Common Stock513,067$00ISee footnotes(3)(4)
Series C Preferred Stock(1)09/28/2026C256,448 (1) (1)Common Stock256,448$00ISee footnotes(3)(4)
Explanation of Responses:
1. 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.
2. Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering.
3. 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.
4. 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.
/s/ Erez Chimovits09/30/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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