Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
RP Investment Advisors LP - 04 Feb 2026 SCHEDULE 13G/A Report for Black Spade Acquisition III Co Class A ordinary shares, $0.0001 par value (BIII)
- Filing manager
- RP Investment Advisors LP
- Reporting owner
- RP Investment Advisors LP
- Beneficially owned shares
- 1,425,000 shares
- Large-stake signal
-
Ownership
8.3%Beneficial ownership of this reported class.
Shares
1,425,000 sharesShares beneficially owned as disclosed.
Event date
04 Feb 2026Date tied to the ownership event or amendment.
Accepted by SEC
15 May 2026EDGAR 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
- 8.3%
- Symbol
- BIII
- Shares outstanding
- 17,168,675 shares
- Form type
- SCHEDULE 13G/A
- Accepted by SEC
- 15 May 2026, 13:27:25 UTC
- Event date
- 04 Feb 2026
- SEC filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Who this page is about.
2 source fields
Source evidence
Original filing metadata and source links.
4 source fields
Key filing fact
RP Investment Advisors LP disclosed 8.3% ownership in Black Spade Acquisition III Co Class A ordinary shares, $0.0001 par value (BIII) on 04 Feb 2026.
Key facts
- RP Investment Advisors LP filed SCHEDULE 13G/A for Black Spade Acquisition III Co Class A ordinary shares, $0.0001 par value (BIII).
- Disclosed ownership: 8.3%.
- Date of event: 04 Feb 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 15 May 2026, 13:27.
Research use
- 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.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (5)
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 |
|---|---|---|---|---|---|---|---|
| RP Investment Advisors LP | 8.3% | 1,425,000 | 0 | 1,425,000 | /s/ Richard Pilosof | Richard Pilosof, Chief Executive Officer, RP Investment Advisors LP by its General Partner RP Investment Advisors GP Inc. | |
| RP Select Opportunities Master Fund Ltd. | 3.1% | 538,165 | 0 | 538,165 | /s/ Richard Pilosof | Richard Pilosof, Chief Executive Officer, RP Investment Advisors LP by its General Partner RP Investment Advisors GP Inc. | |
| RP Debt Opportunities Fund Ltd. | 1.6% | 282,965 | 0 | 282,965 | /s/ Richard Pilosof | Richard Pilosof, Chief Executive Officer, RP Investment Advisors LP by its General Partner RP Investment Advisors GP Inc. | |
| RP Alternative Global Bond Fund | 3.2% | 553,615 | 0 | 553,615 | /s/ Richard Pilosof | Richard Pilosof, Chief Executive Officer, RP Investment Advisors LP by its General Partner RP Investment Advisors GP Inc. | |
| RP Alternative Credit Opportunities Fund | 0.3% | 50,255 | 0 | 50,255 | /s/ Richard Pilosof | Richard Pilosof, Chief Executive Officer, RP Investment Advisors LP by its General Partner RP Investment Advisors GP Inc. |
CIK / CUSIP context first