Definium Therapeutics (DFTX) director Roger Adsett reports no stock ownership on Form 3

Rhea-AI Filing Summary

Definium Therapeutics director reports no holdings

Definium Therapeutics, Inc. director Roger Adsett filed an initial ownership report stating that he does not beneficially own any Definium Therapeutics securities. The filing is administrative in nature and does not describe any stock purchases, sales, or other transactions.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Adsett Roger

(Last) (First) (Middle)

C/O DEFINIUM THERAPEUTICS, INC.

ONE WORLD TRADE CENTER, SUITE 8500

(Street)

NEW YORK NY 10007

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/29/2026

3. Issuer Name and Ticker or Trading Symbol
Definium Therapeutics, Inc. [ DFTX ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Mark Sullivan, Attorney-in-Fact for Roger Adsett	01/29/2026
	** Signature of Reporting Person	Date
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 5 (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.
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FAQ

What does the Form 3 filing by Roger Adsett at DFTX disclose?

The Form 3 shows that director Roger Adsett currently beneficially owns no securities of Definium Therapeutics, Inc. (DFTX). It is an initial ownership report required for insiders when they first become subject to reporting obligations under U.S. securities laws.

What is Roger Adsett’s role at Definium Therapeutics (DFTX)?

The filing identifies Roger Adsett as a director of Definium Therapeutics, Inc.. As a director, he is considered an insider and must report his holdings and certain changes in ownership on SEC forms such as Form 3, Form 4, and Form 5.

Does the DFTX Form 3 show any shares owned by Roger Adsett?

No. The Form 3 explicitly states that no securities are beneficially owned by Roger Adsett. Both the non-derivative and derivative security tables are effectively empty, with a narrative explanation confirming the absence of any beneficial ownership positions.

Are there any stock transactions reported for DFTX in this Form 3?

No transactions are reported. The Form 3 simply records that no securities are beneficially owned by director Roger Adsett. It does not include purchases, sales, option grants, or other derivative positions in Definium Therapeutics, Inc. common stock or related instruments.

Why would Definium Therapeutics file a Form 3 with no securities owned?

A Form 3 is required when someone becomes an insider, such as a director. Even if the individual holds no securities, they must file to disclose that fact. Here, Roger Adsett’s Form 3 confirms he currently has no beneficial ownership in DFTX securities.