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ADARx Pharmaceuticals: OrbiMed buys 950K IPO shares

The conversions occurred automatically at the IPO closing without further consideration, while the common-stock purchases were made directly by three investment entities.

(Very High)

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Form Type
4

Rhea-AI Filing Summary

ADARx Pharmaceuticals, Inc. (ADRX) director and 10% owner Carl L. Gordon reported automatic conversion of preferred shares into 23,255,789 common shares upon the IPO closing. The shares were held directly by OrbiMed Private Investments VII, LP and OrbiMed Israel Partners II, L.P.; the conversion was on a 1-for-1.1717 basis without further consideration.

Those two entities and OrbiMed Genesis Master Fund, L.P. also purchased 950,000 common shares in the IPO on September 28, 2026, at $17 per share: 300,249, 61,516, and 588,235 shares, respectively. Gordon disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.

Insights

Analyzing...

Insider GORDON CARL L
Role Director, 10% Owner
Bought 950,000 shs ($16.15M)
Type Security Shares Price Value
Conversion Series A Preferred Stock F1, F3, F6 10,690,530 $0.00 $0.00
Conversion Series B Preferred Stock F1, F3, F6 2,000,962 $0.00 $0.00
Conversion Series B-1 Preferred Stock F1, F3, F6 769,601 $0.00 $0.00
Conversion Series C Preferred Stock F1, F3, F6 564,187 $0.00 $0.00
Conversion Series A Preferred Stock F1, F4, F6 7,127,019 $0.00 $0.00
Conversion Series B Preferred Stock F1, F4, F6 1,333,975 $0.00 $0.00
Conversion Series B-1 Preferred Stock F1, F4, F6 513,067 $0.00 $0.00
Conversion Series C Preferred Stock F1, F4, F6 256,448 $0.00 $0.00
Conversion Common Stock F1, F3, F6 10,690,530 -- --
Conversion Common Stock F1, F3, F6 2,000,962 -- --
Conversion Common Stock F1, F3, F6 769,601 -- --
Conversion Common Stock F1, F3, F6 564,187 -- --
Purchase Common Stock F2, F3, F6 300,249 $17.00 $5.10M
Conversion Common Stock F1, F4, F6 7,127,019 -- --
Conversion Common Stock F1, F4, F6 1,333,975 -- --
Conversion Common Stock F1, F4, F6 513,067 -- --
Conversion Common Stock F1, F4, F6 256,448 -- --
Purchase Common Stock F2, F4, F6 61,516 $17.00 $1.05M
Purchase Common Stock F2, F5, F6 588,235 $17.00 $10.00M
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 — 588,235 shares (Indirect, See footnotes)
Footnotes (6)
  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 Private Investments VII, LP ("OPI VII"). OrbiMed Capital GP VII LLC ("GP VII") is the general partner of OPI VII. OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VII. By virtue of such relationships, GP VII and OrbiMed Advisors may be deemed to have voting power and investment power over the securities held by OPI VII and as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of the Reporting Person, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OPI VII.
  4. F4. 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 the Reporting Person, David P. Bonita, and Erez Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.
  5. F5. These securities are held directly by OrbiMed Genesis Master Fund, L.P. ("OrbiMed Genesis"). OrbiMed Genesis GP LLC ("Genesis GP") is the general partner of OrbiMed Genesis. OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting power and investment power over the securities held by OrbiMed Genesis and as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of the Reporting Person, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OrbiMed Genesis.
  6. F6. Each of the Reporting Person, OrbiMed Advisors, GP VII, Israel GP, Advisors Israel, and Genesis GP 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.
Preferred-stock conversion 23,255,789 common shares Automatic conversion upon the IPO closing on September 28, 2026
Conversion basis 1-for-1.1717 Preferred stock converted into common stock upon the IPO closing
IPO purchases 950,000 common shares Three entities' purchases on September 28, 2026
IPO purchase price $17 per share Common shares purchased in the IPO
Preferred Stock financial
"collectively, the "Preferred Stock""
Preferred stock is a type of ownership in a company that typically offers investors higher and more consistent dividend payments than common stock. Unlike regular shares, preferred stock usually doesn’t come with voting rights but provides a priority claim on the company’s assets and profits, making it a more stable and predictable investment option. This makes preferred stock attractive to those seeking steady income with lower risk.
initial public offering financial
"purchased in 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.
voting power regulatory
"may be deemed to have voting power and investment power"
Voting power is the ability shareholders have to influence a company's major decisions—like electing the board, approving mergers, or changing corporate rules—based on the voting rights attached to the shares they hold. For investors it matters because greater voting power is like holding more keys to a building: it gives you a stronger say over management choices and the company’s strategy, which can affect future value and risk.
pecuniary interest regulatory
"except to the extent of its pecuniary interest therein"

FAQ

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

How many ADRX shares did the OrbiMed entities buy in the IPO?

The three entities purchased 950,000 common shares at $17 per share on September 28, 2026: OrbiMed Private Investments VII, LP purchased 300,249, OrbiMed Israel Partners II, L.P. purchased 61,516, and OrbiMed Genesis Master Fund, L.P. purchased 588,235.

How did ADRX preferred shares convert in the IPO?

Series A, B, B-1, and C preferred shares held by OrbiMed Private Investments VII, LP and OrbiMed Israel Partners II, L.P. automatically converted into common stock on a 1-for-1.1717 basis upon the IPO closing, without further consideration. The reported common-share figures 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*
GORDON CARL L

(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)
XDirectorX10% 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 Stock09/28/2026C10,690,530A(1)10,690,530ISee footnotes(3)(6)
Common Stock09/28/2026C2,000,962A(1)12,691,492ISee footnotes(3)(6)
Common Stock09/28/2026C769,601A(1)13,461,093ISee footnotes(3)(6)
Common Stock09/28/2026C564,187A(1)14,025,280ISee footnotes(3)(6)
Common Stock09/28/2026P300,249(2)A$1714,325,529ISee footnotes(3)(6)
Common Stock09/28/2026C7,127,019A(1)7,127,019ISee footnotes(4)(6)
Common Stock09/28/2026C1,333,975A(1)8,460,994ISee footnotes(4)(6)
Common Stock09/28/2026C513,067A(1)8,974,061ISee footnotes(4)(6)
Common Stock09/28/2026C256,448A(1)9,230,509ISee footnotes(4)(6)
Common Stock09/28/2026P61,516(2)A$179,292,025ISee footnotes(4)(6)
Common Stock09/28/2026P588,235(2)A$17588,235ISee footnotes(5)(6)
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)09/28/2026C10,690,530 (1) (1)Common Stock10,690,530$00ISee footnotes(3)(6)
Series B Preferred Stock(1)09/28/2026C2,000,962 (1) (1)Common Stock2,000,962$00ISee footnotes(3)(6)
Series B-1 Preferred Stock(1)09/28/2026C769,601 (1) (1)Common Stock769,601$00ISee footnotes(3)(6)
Series C Preferred Stock(1)09/28/2026C564,187 (1) (1)Common Stock564,187$00ISee footnotes(3)(6)
Series A Preferred Stock(1)09/28/2026C7,127,019 (1) (1)Common Stock7,127,019$00ISee footnotes(4)(6)
Series B Preferred Stock(1)09/28/2026C1,333,975 (1) (1)Common Stock1,333,975$00ISee footnotes(4)(6)
Series B-1 Preferred Stock(1)09/28/2026C513,067 (1) (1)Common Stock513,067$00ISee footnotes(4)(6)
Series C Preferred Stock(1)09/28/2026C256,448 (1) (1)Common Stock256,448$00ISee footnotes(4)(6)
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 Private Investments VII, LP ("OPI VII"). OrbiMed Capital GP VII LLC ("GP VII") is the general partner of OPI VII. OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VII. By virtue of such relationships, GP VII and OrbiMed Advisors may be deemed to have voting power and investment power over the securities held by OPI VII and as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of the Reporting Person, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OPI VII.
4. 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 the Reporting Person, David P. Bonita, and Erez Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.
5. These securities are held directly by OrbiMed Genesis Master Fund, L.P. ("OrbiMed Genesis"). OrbiMed Genesis GP LLC ("Genesis GP") is the general partner of OrbiMed Genesis. OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting power and investment power over the securities held by OrbiMed Genesis and as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of the Reporting Person, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OrbiMed Genesis.
6. Each of the Reporting Person, OrbiMed Advisors, GP VII, Israel GP, Advisors Israel, and Genesis GP 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/ Carl L. Gordon09/30/2026
** 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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