Key facts
- This page summarizes Gregory S. Martin's Form 4/A - Amendment filing for Ionetix Corp / DE /.
- 8 reported transactions and 6 derivative rows are listed below.
- Accepted by SEC: 13 May 2026, 14:29.
Gregory S. Martin - 09 Apr 2026 Form 4/A - Amendment Insider Report for Ionetix Corp / DE /
- Reporting relationship
- Director
- Issuer ticker
- N/A
- Reported as of
- 09 Apr 2026
- Net transaction value
- $0
- SEC form
- 4/A - Amendment
- Accepted by SEC
- 13 May 2026, 14:29:54 UTC
- Original report date
- 22 Apr 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Phieu Phun, as Attorney-in-Fact for Gregory S. Martin
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Gregory S. Martin filed Form 4/A - Amendment for Ionetix Corp / DE / on 13 May 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- 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/A - Amendment disclosures.
Reporting Owners (1)
CIK 0002129828
Primary reporting owner
Martin Gregory Scott
- Relationship
- Director
- Address
- C/O IONETIX CORPORATION, 3130 SOVEREIGN DRIVE, LANSING
- Signature
- /s/ Phieu Phun, as Attorney-in-Fact for Gregory S. Martin
- Signature date
- 13 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
No ticker
transaction
Common Stock
Award
- Transaction value
- Shares
- +180,291
- Change %
- Price
- Shares after
- 180,291
- Date
- 09 Apr 2026
- Ownership
- Direct
- Footnotes
- F1
No ticker
transaction
Common Stock
Award
- Transaction value
- Shares
- +123,767
- Change %
- Price
- Shares after
- 123,767
- Date
- 09 Apr 2026
- Ownership
- By Shamrock Ionetix LLC
- Footnotes
- F2, F3
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
No ticker
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +18,803
- Change %
- Price
- Shares after
- 18,803
- Date
- 09 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 18,803
- Exercise price
- $0.3800
- Footnotes
- F4, F5
No ticker
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +25,070
- Change %
- Price
- Shares after
- 25,070
- Date
- 09 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 25,070
- Exercise price
- $0.3800
- Footnotes
- F4, F5
No ticker
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +25,070
- Change %
- Price
- Shares after
- 25,070
- Date
- 09 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 25,070
- Exercise price
- $0.9800
- Footnotes
- F5, F6
No ticker
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +25,070
- Change %
- Price
- Shares after
- 25,070
- Date
- 09 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 25,070
- Exercise price
- $0.9800
- Footnotes
- F5, F7
No ticker
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +25,070
- Change %
- Price
- Shares after
- 25,070
- Date
- 09 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 25,070
- Exercise price
- $0.9800
- Footnotes
- F5, F8
No ticker
transaction
Derivative
Warrant (Right to Buy)
Award
- Transaction value
- Shares
- +193
- Change %
- Price
- $0.000000*
- Shares after
- 193
- Date
- 09 Apr 2026
- Ownership
- By Shamrock Ionetix LLC
- Underlying class
- Common Stock
- Underlying amount
- 193
- Exercise price
- $2.79
- Footnotes
- F3, F9
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 9 footnotes
Footnote F1
Received in connection with the Issuer's merger (the "Merger") with Ionetix Corporation ("Legacy Ionetix") in accordance with the terms of the Agreement and Plan of Merger and Reorganization dated as of April 9, 2026 (the "Merger Agreement"), by and among the Issuer (f/k/a JDEV Acquisition Corp.), JDEV Merger Subsidiary and Legacy Ionetix. Pursuant to the terms of the Merger Agreement, each outstanding share of Legacy Ionetix common stock was entitled to receive 0.5014 shares of the Issuer's Common Stock. The Merger closed on April 9, 2026.
Footnote F2
Shares held of record by Shamrock Ionetix LLC. The Reporting Person's interest in Shamrock Ionetix LLC consists of a capital investment and a profits (carried) interest entitling the Reporting Person to up to 10% of the profits realized by Shamrock Ionetix LLC on its investment in Ionetix. The 123,767 shares reported in Table I represent the post-Merger equivalent of Shamrock Ionetix LLC's Legacy Ionetix holdings (229,375 shares of Series E Preferred Stock, 14,452 shares of Series F Preferred Stock, and 3,016 shares of Common Stock), converted at the 0.5014 Conversion Ratio pursuant to the Merger Agreement.
Footnote F3
Voting and investment power over the securities held by Shamrock Ionetix LLC is held solely by Stanley P. Gold. The Reporting Person disclaims beneficial ownership of the securities held by Shamrock Ionetix LLC except to the extent of his pecuniary interest therein.
Footnote F4
The stock option is fully vested and exercisable.
Footnote F5
Received in connection with the Merger in exchange for options to acquire shares of Legacy Ionetix common stock adjusted by the Conversion Ratio.
Footnote F6
The stock option vests in 48 monthly installments, subject to a one-year cliff, with vesting commencing on March 17, 2024.
Footnote F7
The stock option vests in 48 monthly installments, subject to a one-year cliff, with vesting commencing on March 17, 2023.
Footnote F8
The stock option vests in 48 monthly installments, subject to a one-year cliff, with vesting commencing on March 17, 2025.
Footnote F9
The warrant is fully vested and exercisable. The warrant was assumed by the Issuer in the Merger described in footnote (1) and is exercisable solely for shares of the Issuer's Common Stock.