Riva Ridge Capital Management LP - 29 Oct 2025 SCHEDULE 13G Report for Ambipar Emergency Response Class A Ordinary Shares, par value $0.0001 per share (AMBI)

Filing Manager
Riva Ridge Capital Management LP
Reporting Manager
Riva Ridge Capital Management LP
Security
Ambipar Emergency Response Class A Ordinary Shares, par value $0.0001 per share
Symbol
AMBI
Shares outstanding
17,405,859 shares
Disclosed Ownership
1,235,816 shares
Ownership
7.1%
Form type
SCHEDULE 13G
Filing time
05 Nov 2025, 19:19:48 UTC
Date of event
29 Oct 2025
SEC
View on sec.gov

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Riva Ridge Capital Management LP 7.1% 1,235,816 0 1,235,816 /s/ Stephen Golden* Stephen Golden / Managing Member of the General Partner
Riva Ridge Master Fund, Ltd. 7.1% 1,235,816 0 1,235,816 /s/ Stephen Golden* Stephen Golden / Director
Riva Ridge GP LLC 7.1% 1,235,816 0 1,235,816 /s/ Stephen Golden* Stephen Golden / Managing Member
Stephen Golden 7.1% 1,235,816 0 1,235,816 /s/ Stephen Golden* Stephen Golden
Peter Finelli 7.1% 1,235,816 0 1,235,816 /s/ Peter Finelli* Peter Finelli