Latest Period
Q1 2026
Security Snapshot
Black Spade Acquisition III Co - Class A ordinary shares, $0.0001 par value (BIII) Institutional Ownership
CUSIP: G1154S103
13F Institutional Holders and Ownership History for Q1 2026
Institutions Reporting
31
Shares (Excl. Options)
11,372,870
Price
$9.84
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- Security type / class
- Equity / Class A ordinary shares, $0.0001 par value
- Symbol
- BIII on NYSE
- Shares outstanding
- 17,168,675
- Reported price per share
- $9.84
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 11,372,870
- Total reported value
- $111,927,284
- Portfolio coverage rank
- 0%
- Share change
- +10,933,310
- Value change
- +$107,602,014
- Number of holders
- 31
Security identity
Issuer context
Latest holder snapshot
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- BIII - Black Spade Acquisition III Co - Class A ordinary shares, $0.0001 par value is tracked under CUSIP G1154S103.
- 31 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Latest quarter on this page is Q1 2026.
- Additional quarter-over-quarter change detail appears as history expands.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 31 institutions filings for Q1 2026.
Security key
G1154S103
Latest holder period
Q1 2026
13F holders
31
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
BIII full holder history
Black Spade Acquisition III Co SEC filings
Black Spade Acquisition III Co company facts
Black Spade Acquisition III Co insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G1154S103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
BIII
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| RP Investment Advisors LP | 8.3% | $14,022,000 | 1,425,000 | RP Investment Advisors LP | 04 Feb 2026 | |||
| ARISTEIA CAPITAL, L.L.C. | 6.4% | $10,824,000 | 1,100,000 | Aristeia Capital, L.L.C. | 31 Mar 2026 | |||
| Magnetar Financial LLC | 5.8% | $9,840,000 | 1,000,000 | MAGNETAR FINANCIAL LLC | 31 Mar 2026 |
As of 31 Mar 2026, 31 institutional investors reported holding 11,372,870 shares of Black Spade Acquisition III Co - Class A ordinary shares, $0.0001 par value (BIII). This represents 66% of the company’s total 17,168,675 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
64%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ARISTEIA CAPITAL, L.L.C. | 6.4% | 1,100,000 | 0.25% | $10,824,000 | |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 5.8% | 1,000,000 | 0.15% | $9,840,000 | |
| Magnetar Financial LLC | 5.8% | 999,993 | 0.1% | $9,856,531 | |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 4.8% | 825,000 | 0.01% | $8,118,000 | |
| AQR Arbitrage LLC | 4.4% | 760,440 | 0.12% | $7,482,730 | |
| Fort Baker Capital Management LP | 2.9% | 500,000 | 0.44% | $4,919,999 | |
| Alberta Investment Management Corp | 2.9% | 500,000 | 0.03% | $4,920,000 | |
| GLAZER CAPITAL, LLC | 2.9% | 500,000 | 0.11% | $4,920,000 | |
| BNP PARIBAS FINANCIAL MARKETS | 2.6% | 439,560 | 0% | 0% | $4,325,270 |
| Periscope Capital Inc. | 2.4% | 418,800 | 0.72% | $4,120,992 | |
| Shaolin Capital Management LLC | 2.3% | 399,669 | 0.33% | $3,932,743 | |
| PICTON MAHONEY ASSET MANAGEMENT | 2.2% | 375,000 | 0.04% | $3,690,000 | |
| Radcliffe Capital Management, L.P. | 2% | 350,018 | 0.26% | $3,444,177 | |
| First Trust Capital Management L.P. | 2% | 350,000 | 0.18% | $3,444,000 | |
| WHITEBOX ADVISORS LLC | 1.6% | 276,200 | 0.04% | $2,717,808 | |
| BERKLEY W R CORP | 1.6% | 273,849 | 0.14% | $2,694,674 | |
| Linden Advisors LP | 1.5% | 250,000 | 0.01% | $2,460,000 | |
| Hudson Bay Capital Management LP | 1.3% | 225,000 | 0.01% | $2,214,000 | |
| Mint Tower Capital Management B.V. | 1.3% | 225,000 | 0.21% | $2,214,000 | |
| TORONTO DOMINION BANK | 1.2% | 213,286 | 0% | $2,098,734 | |
| TWO SIGMA INVESTMENTS, LP | 1.2% | 201,517 | 0% | $1,982,927 | |
| Context Capital Management, LLC | 1.2% | 200,601 | 0.05% | $1,973,914 | |
| Clear Street Group Inc. | 1.2% | 200,421 | 0.01% | $1,972,143 | |
| MOORE CAPITAL MANAGEMENT, LP | 1.2% | 200,000 | 0.07% | $1,968,000 | |
| MILLENNIUM MANAGEMENT LLC | 0.87% | 150,000 | 0% | $1,476,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
1
Latest
Q1 2026
Rows shown
1-1 of 1
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 11,372,870 | $111,927,284 | +$107,602,014 | $9.84 | 31 |