Obsidian Therapeutics names Peter Barrett director

Obsidian Therapeutics, Inc. identified Peter Barrett as a director and reporting person in an initial beneficial ownership report.

Rhea-AI Filing Summary

Obsidian Therapeutics, Inc. identified Peter Barrett as a director and reporting person in an initial beneficial ownership report. The filing does not list any stock or option transactions and includes an exhibit described as a Power of Attorney.

Key Terms

Power of Attorney

1 terms

Power of Attorney regulatory

"Remarks reference an exhibit titled "Exhibit 24 - Power of Attorney""

A power of attorney is a legal document that allows one person to make decisions and act on behalf of another person, often in financial or legal matters. It’s like giving someone a trusted helper or agent the authority to handle important tasks if you are unable to do so yourself. This matters to investors because it can impact how their assets are managed or transferred if they become unable to oversee their affairs.

FAQ

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

What does Obsidian Therapeutics (OBX) report about Peter Barrett in this insider filing?

Obsidian Therapeutics reports that Peter Barrett is a director and a reporting person. The submission is an initial beneficial ownership report and does not show any stock or option transactions for him.

Are there any buy or sell transactions reported for Peter Barrett in the OBX Form 3?

No, the report shows no buy or sell transactions for Peter Barrett. Transaction counts for purchases, sales, exercises, gifts, and other dispositions are all zero in the structured data.

Does the Peter Barrett insider report for OBX indicate any derivative or option positions?

No, the filing lists no derivative transactions and shows zero remaining derivative holdings in its summary. The derivative section is empty, indicating no options or similar instruments are reported here.

What is the significance of the Power of Attorney mentioned in the OBX insider filing?

The remarks section notes an exhibit titled Power of Attorney. This typically authorizes another party to sign and submit certain documents on the reporting person’s behalf, streamlining compliance with reporting obligations.

Is Peter Barrett reported as a 10% owner of Obsidian Therapeutics (OBX)?

No, the structured data marks Peter Barrett as a director but not as a 10% owner. The ten-percent-owner flag is set to zero, indicating he is not classified in that ownership category in this report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/12/2026 - 07:10 PM Accepted by SEC EDGAR 08/03/2026 - 06:42 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Barrett Peter

(Last) (First) (Middle)

OBSIDIAN THERAPEUTICS, INC.

1030 MASSACHUSETTS AVE

(Street)

CAMBRIDGE MASSACHUSETTS 02138

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/03/2026

3. Issuer Name and Ticker or Trading Symbol
Obsidian Therapeutics, Inc. [ OBX ]

3a. Foreign Trading Symbol

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

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

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

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/ Gabriela Morales-Rivera, Attorney-in-Fact	08/03/2026
	** 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.
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 3: SEC 1473 (03-26)