Key facts
- This page summarizes SR ONE CAPITAL MANAGEMENT, LLC's Form 4 filing for ADARx Pharmaceuticals, Inc. (ADRX).
- 15 reported transactions and 6 derivative rows are listed below.
- Accepted by SEC: 29 Sep 2026, 21:45.
SR ONE CAPITAL MANAGEMENT, LLC - 28 Sep 2026 Form 4 Insider Report for ADARx Pharmaceuticals, Inc. (ADRX)
- Reporting relationship
- 10%+ Owner
- Issuer ticker
- ADRX
- Reported as of
- 28 Sep 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 29 Sep 2026, 21:45:43 UTC
- Prior SEC filing
- 24 Sep 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Sasha Keough, attorney-in-fact for SR One Capital Management, LLC
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
SR ONE CAPITAL MANAGEMENT, LLC filed Form 4 for ADARx Pharmaceuticals, Inc. (ADRX) on 29 Sep 2026.
Change
- Previous filing in this sequence was filed on 24 Sep 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001853723
Primary reporting owner
SR ONE CAPITAL MANAGEMENT, LLC
- Relationship
- 10%+ Owner
- Address
- 929 MAIN STREET, SUITE 200, REDWOOD CITY
- Signature
- /s/ Sasha Keough, attorney-in-fact for SR One Capital Management, LLC
- Signature date
- 29 Sep 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ADRX
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +3,334,938
- Change %
- Price
- Shares after
- 3,334,938
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Footnotes
- F1, F2
ADRX
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,113,666
- Change %
- +33%
- Price
- Shares after
- 4,448,604
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Footnotes
- F1, F2
ADRX
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +512,897
- Change %
- +12%
- Price
- Shares after
- 4,961,501
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Footnotes
- F1, F2
ADRX
transaction
Common Stock
Purchase
- Transaction value
- Shares
- +592,593
- Change %
- +12%
- Price
- $17.00*
- Shares after
- 5,554,094
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Footnotes
- F2
ADRX
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,538,691
- Change %
- Price
- Shares after
- 1,538,691
- Date
- 28 Sep 2026
- Ownership
- See Note 3
- Footnotes
- F1, F3
ADRX
transaction
Common Stock
Purchase
- Transaction value
- Shares
- +414,814
- Change %
- +27%
- Price
- $17.00*
- Shares after
- 1,953,505
- Date
- 28 Sep 2026
- Ownership
- See Note 3
- Footnotes
- F3
ADRX
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,667,468
- Change %
- Price
- Shares after
- 1,667,468
- Date
- 28 Sep 2026
- Ownership
- See Note 4
- Footnotes
- F1, F4
ADRX
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +169,001
- Change %
- +10%
- Price
- Shares after
- 1,836,469
- Date
- 28 Sep 2026
- Ownership
- See Note 4
- Footnotes
- F1, F4
ADRX
transaction
Common Stock
Purchase
- Transaction value
- Shares
- +592,593
- Change %
- Price
- $17.00*
- Shares after
- 592,593
- Date
- 28 Sep 2026
- Ownership
- See Note 5
- Footnotes
- F5
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ADRX
transaction
Derivative
Series B Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -3,907,547
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Underlying class
- Common Stock
- Underlying amount
- 3,334,938
- Exercise price
- Footnotes
- F1, F2
ADRX
transaction
Derivative
Series B-1 Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -1,304,883
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Underlying class
- Common Stock
- Underlying amount
- 1,113,666
- Exercise price
- Footnotes
- F1, F2
ADRX
transaction
Derivative
Series C Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -600,962
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 Sep 2026
- Ownership
- See Note 2
- Underlying class
- Common Stock
- Underlying amount
- 512,897
- Exercise price
- Footnotes
- F1, F2
ADRX
transaction
Derivative
Series C Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -1,802,885
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 Sep 2026
- Ownership
- See Note 3
- Underlying class
- Common Stock
- Underlying amount
- 1,538,691
- Exercise price
- Footnotes
- F1, F3
ADRX
transaction
Derivative
Series B Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -1,953,773
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 Sep 2026
- Ownership
- See Note 4
- Underlying class
- Common Stock
- Underlying amount
- 1,667,468
- Exercise price
- Footnotes
- F1, F4
ADRX
transaction
Derivative
Series B-1 Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -198,019
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 Sep 2026
- Ownership
- See Note 4
- Underlying class
- Common Stock
- Underlying amount
- 169,001
- Exercise price
- Footnotes
- F1, F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Section 16 status
SR ONE CAPITAL MANAGEMENT, LLC is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.
Explanation of responses 5 footnotes
Footnote F1
Each share of 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 reverse stock split basis into shares of Common Stock upon the closing of the Issuer's initial public offering on September 28, 2026, without payment of further consideration. The Preferred Stock has no expiration date.
Footnote F2
The securities are directly held by SR One Capital Fund I Aggregator, LP ("SR One Fund I Aggregator"). SR One Capital Partners I, LP ("SR One Partners I") is the sole general partner of SR One Fund I Aggregator, and SR One Capital Management, LLC ("SR One Capital Management") is the sole general partner of SR One Partners I. Simeon George, M.D. is the managing member of SR One Capital Management. Each of SR One Partners I, SR One Capital Management and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.
Footnote F3
The securities are directly held by SR One Capital Opportunities Fund I, LP ("SR One Opportunities Fund I"). SR One Capital Opportunities Partners I, LP ("SR One Opportunities Partners I") is the sole general partner of SR One Opportunities Fund I, and SR One Capital Management is the sole general partner of SR One Opportunities Partners I. Simeon George, M.D. is the managing member of SR One Capital Management. Each of SR One Opportunities Partners I, SR One Capital Management and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.
Footnote F4
The securities are directly held by SR One Co-Invest III, LLC ("SR One Co-Invest"). SR One Co-Invest III Manager LLC ("SR One Co-Invest Manager") is the managing member of SR One-Co-Invest, and SR One Capital Management is the managing member of SR One Co-Invest Manager. Simeon George, M.D. is the managing member of SR One Capital Management. Each of SR One Co-Invest Manager, SR One Capital Management and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.
Footnote F5
The reported securities are held directly by AMZL, LP ("AMZL"). SR One Capital SMA Partners, LP ("SR One SMA Partners") is the general partner of AMZL, and SR One Capital Management is the general partner of SR One SMA Partners. Simeon George, M.D. is the managing member of SR One Capital Management. Each of SR One SMA Partners, SR One Capital Management and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.