HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND - 30 Jun 2025 SCHEDULE 13G/A Report for SilverBox Corp IV Class A ordinary shares, $0.0001 par value (SBXD)

Filing Manager
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
Reporting Manager
Healthcare of Ontario Pension Plan Trust Fund
Security
SilverBox Corp IV Class A ordinary shares, $0.0001 par value
Symbol
SBXD
Shares outstanding
20,000,000 shares
Disclosed Ownership
100,000 shares
Ownership
0.5%
Form type
SCHEDULE 13G/A
Filing time
13 Aug 2025, 16:02:03 UTC
Date of event
30 Jun 2025
Previous filing
14 May 2025
SEC
View on sec.gov

Quoteable Key Fact

"HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND disclosed 0.5% ownership in SilverBox Corp IV Class A ordinary shares, $0.0001 par value (SBXD) on 30 Jun 2025."

Quick Takeaways

  • HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND filed SCHEDULE 13G/A for SilverBox Corp IV Class A ordinary shares, $0.0001 par value (SBXD).
  • Disclosed ownership: 0.5%.
  • Date of event: 30 Jun 2025.

What Changed

  • Previous schedule filing date: 14 May 2025.
  • Current filing was accepted on 13 Aug 2025, 16:02.

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.

Source Evidence

Backed by Schedule 13D/13G

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

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Healthcare of Ontario Pension Plan Trust Fund 0.5% 100,000 100,000 /s/ Abas Kanu VP, HOOPP Compliance Officer