[Form 3] ATAI Life Sciences N.V. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Atai Beckley N.V. (ATAI) insider filing: A director filed an initial Form 3 reflecting their status as a board member as of 11/05/2025. The filing states that no securities are beneficially owned by the reporting person at this time. The form was submitted by attorney-in-fact Ryan Barrett under a Power of Attorney (Exhibit 24). This is an administrative disclosure establishing insider reporting status and current holdings.

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^*

Feilding-Mellen Cosmo

(Last) (First) (Middle)

C/O ATAI BECKLEY N.V.

PROF. J.H. BAVINCKLAAN 7

(Street)

AMSTERDAM P7 1183AT

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
11/05/2025

3. Issuer Name and Ticker or Trading Symbol
Atai Beckley N.V. [ ATAI ]

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/ Ryan Barrett, as attorney-in-fact	11/06/2025
	** 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 did ATAI disclose in this Form 3 filing?

A director filed an initial ownership report and disclosed no securities beneficially owned.

What is the date of the event for ATAI’s Form 3?

The event date is 11/05/2025.

What is the insider’s relationship to Atai Beckley N.V. (ATAI)?

The reporting person is a Director.

Does the insider currently own ATAI shares?

The filing states no securities are beneficially owned.

Who signed ATAI’s Form 3?

It was signed by Ryan Barrett as attorney-in-fact, citing Exhibit 24 (Power of Attorney).

Is this filing a joint submission?

No. It is filed by one reporting person.