Shattuck Labs (STTK) director Ashiya reports no beneficial share ownership

Rhea-AI Filing Summary

Shattuck Labs director Dr. Mona Ashiya filed an initial ownership report on Form 3 for Shattuck Labs, Inc. (STTK). The filing states in the remarks section that no securities are beneficially owned, meaning the reporting person did not report any direct or indirect ownership of Shattuck Labs stock or derivative securities as of the event date.

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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^*

Ashiya Mona

(Last) (First) (Middle)

C/O SHATTUCK LABS, INC.

500 W. 5TH STREET, SUITE 1200

(Street)

AUSTIN TX 78701

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/25/2025

3. Issuer Name and Ticker or Trading Symbol
Shattuck Labs, Inc. [ STTK ]

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:

Remarks:

Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	/s/ Andrew R. Neill, Attorney-in-Fact for Dr. Mona Ashiya	09/02/2025
	** 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.
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.

FAQ

What does the Shattuck Labs (STTK) Form 3 filed by Dr. Mona Ashiya show?

The Form 3 for Shattuck Labs (STTK) filed by director Dr. Mona Ashiya states in the remarks that no securities are beneficially owned.

What is the role of the reporting person in the STTK Form 3?

The reporting person, Dr. Mona Ashiya, is identified as a director of Shattuck Labs, Inc. (STTK) and not a 10% owner or officer.

Are any Shattuck Labs (STTK) shares or derivatives reported as owned on this Form 3?

No. The filing’s remarks section explicitly state that no securities are beneficially owned, and the Form 3 tables list no non-derivative or derivative holdings.

Does the STTK Form 3 disclose any insider transactions by Dr. Mona Ashiya?

No transactions are listed. The Form 3 is an initial ownership report and indicates that no securities are beneficially owned by the reporting person.

Who signed the Shattuck Labs (STTK) Form 3 for Dr. Mona Ashiya?

The Form 3 is signed by /s/ Andrew R. Neill as Attorney-in-Fact for Dr. Mona Ashiya, referencing an Exhibit 24 Power of Attorney.