Filing Manager
J. Goldman & Co LP
Reporting Manager
J. Goldman & Co LP
Symbol
ONCH
Shares outstanding
17,250,000 shares
Disclosed Ownership
862,500 shares
Ownership
5%
Form type
SCHEDULE 13G/A
Filing time
17 Feb 2026, 09:00:20 UTC
Date of event
31 Dec 2025
Previous filing
14 Nov 2025

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Quoteable Key Fact

"J. Goldman & Co LP disclosed 5% ownership in 1RT Acquisition Corp. Class A Ordinary Shares, par value $0.0001 per share (ONCH) on 31 Dec 2025."

Quick Takeaways

  • J. Goldman & Co LP filed SCHEDULE 13G/A for 1RT Acquisition Corp. Class A Ordinary Shares, par value $0.0001 per share (ONCH).
  • Disclosed ownership: 5%.
  • Date of event: 31 Dec 2025.

What Changed

  • Previous schedule filing date: 14 Nov 2025.
  • Current filing was accepted on 17 Feb 2026, 09:00.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

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

See Original Filing

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
J. Goldman & Co LP 5% 862,500 0 862,500 /s/ Sagan A. Weiss By: Sagan A. Weiss, Chief Compliance Officer
J. Goldman Capital Management, Inc. 5% 862,500 0 862,500 /s/ Jay G. Goldman Jay G. Goldman, Director
Jay G. Goldman 5% 862,500 0 862,500 s/ Jay G. Goldman Jay G. Goldman, individually