Apeiron Investment Group Ltd. - 15 Jul 2026 SCHEDULE 13D/A Report for AtaiBeckley Inc. Common stock, par value $0.01 per share (ATAI)

Filing manager: Apeiron Investment Group Ltd.
Reporting owner: Christian Angermayer
Security: AtaiBeckley Inc. Common stock, par value $0.01 per share
Beneficially owned shares: 56,812,134 shares
Large-stake signal: Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Ownership
15%
Beneficial ownership of this reported class.
Shares
56,812,134 shares
Shares beneficially owned as disclosed.
Event date
15 Jul 2026
Date tied to the ownership event or amendment.
Accepted by SEC
17 Jul 2026
EDGAR acceptance date.
How to read this large-stake filing
Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
Compare this filing with the holder history and issuer page before treating the percentage as a current position.
Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership: 15%
Symbol: ATAI
Shares outstanding: 368,909,961 shares
SEC form: SCHEDULE 13D/A
Accepted by SEC: 17 Jul 2026, 17:17:47 UTC
Event date: 15 Jul 2026
Source filing: View source filing

Key filing fact

Apeiron Investment Group Ltd. disclosed 15% ownership in AtaiBeckley Inc. Common stock, par value $0.01 per share (ATAI) on 15 Jul 2026.

Key facts

Apeiron Investment Group Ltd. filed SCHEDULE 13D/A for AtaiBeckley Inc. Common stock, par value $0.01 per share (ATAI).
Disclosed ownership: 15%.
Date of event: 15 Jul 2026.

This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares owned	Sole voting power	Shared voting power	Signature	Title	CIK
Apeiron Investment Group Ltd.	15%	55,770,948	0	55,770,948	/s/ Sanad Abushala	Sanad Abushala, Director	0001845711
Apeiron Presight Capital Fund II, L.P.	0.5%	1,799,302	0	1,799,302	/s/ Fabian Hansen	Fabian Hansen, Managing Member
Presight Capital Management I, L.L.C.	0.5%	1,799,302	0	1,799,302	/s/ Fabian Hansen	Fabian Hansen, Managing Member
Fabian Hansen	0.5%	1,799,302	0	1,799,302	/s/ Fabian Hansen	Fabian Hansen
Christian Angermayer	15%	56,812,134	1,600,418	56,812,134	/s/ Christian Angermeyer	Christian Angermayer

CIK / CUSIP context first

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