RA CAPITAL MANAGEMENT, L.P. - 26 Jan 2026 SCHEDULE 13G Report for Helix Acquisition Corp. III Class A Ordinary Shares, par value $0.0001 per share

Filing Manager
RA CAPITAL MANAGEMENT, L.P.
Reporting Manager
RA Capital Management, L.P.
Security
Helix Acquisition Corp. III Class A Ordinary Shares, par value $0.0001 per share
Shares outstanding
17,857,143 shares
Disclosed Ownership
1,250,000 shares
Ownership
7%
Form type
SCHEDULE 13G
Filing time
02 Feb 2026, 16:30:29 UTC
Date of event
26 Jan 2026
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
RA Capital Management, L.P. 7% 1,250,000 0 1,250,000 /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory
Peter Kolchinsky 7% 1,250,000 0 1,250,000 /s/ Peter Kolchinsky Peter Kolchinsky
Rajeev Shah 7% 1,250,000 0 1,250,000 /s/ Rajeev Shah Rajeev Shah
RA Capital Healthcare Fund, L.P. 7% 1,250,000 0 1,250,000 /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager