Security Snapshot

Black Spade Acquisition III Co - Class A Ordinary Shares, par value $0.0001 per share (BIII) Institutional Ownership

CUSIP: G1154S103

13F Institutional Holders and Ownership History from Q1 2026 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

40

Shares (Excl. Options)

13,809,103

Price

$9.95

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+2,436,233
Value change
+$24,262,906
Number of holders
40
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
22,959,641
SEC-reported price per share
$9.95
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • BIII - Black Spade Acquisition III Co - Class A Ordinary Shares, par value $0.0001 per share is tracked under CUSIP G1154S103.
  • 40 institutions reported positions in Q2 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 31 to 40 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $111,927,284 to $137,399,876.

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

Latest holder context comes from 40 institutions filings for Q2 2026.

Open SEC evidence

Security key

G1154S103

Latest holder period

Q2 2026

13F holders

40

13D/G owners

4

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
BIII
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Black Spade Sponsor LLC III 22% $50,944,000 5,120,000 Black Spade Sponsor LLC III 31 Mar 2026
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 30 Jun 2026, 40 institutional investors reported holding 13,809,103 shares of Black Spade Acquisition III Co - Class A Ordinary Shares, par value $0.0001 per share (BIII). This represents 60% of the company’s total 22,959,641 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
54%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
ARISTEIA CAPITAL, L.L.C. 4.8% 1,100,000 0% 0.17% $10,945,000
TENOR CAPITAL MANAGEMENT Co., L.P. 4.4% 1,000,000 0% 0.14% $9,950,000
Magnetar Financial LLC 4.4% 999,993 0% 0.09% $9,949,930
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 3.6% 825,000 0% 0.01% $8,208,750
AQR Arbitrage LLC 3.3% 760,440 0% 0.11% $7,566,378
MILLENNIUM MANAGEMENT LLC 3.3% 750,000 +400% 0.01% $7,462,500
Fort Baker Capital Management LP 3% 700,000 +40% 0.55% $6,965,001
SONA ASSET MANAGEMENT (US) LLC 2.6% 600,000 0.22% $5,970,000
Wealthspring Capital LLC 2.4% 551,820 1.2% $5,490,609
GLAZER CAPITAL, LLC 2.2% 500,024 +0% 0.12% $4,975,000
Alberta Investment Management Corp 2.2% 500,000 0% 0.03% $4,975,000
BNP PARIBAS FINANCIAL MARKETS 1.9% 439,560 0% 0% $4,373,622
Periscope Capital Inc. 1.8% 418,800 0% 0.66% $4,167,060
PICTON MAHONEY ASSET MANAGEMENT 1.6% 375,000 0% 0.03% $3,731,251
Radcliffe Capital Management, L.P. 1.6% 369,263 +5.5% 0.28% $3,674,167
First Trust Capital Management L.P. 1.5% 350,000 0% 0.2% $3,482,500
Shaolin Capital Management LLC 1.2% 282,712 -29% 0.26% $2,812,984
WHITEBOX ADVISORS LLC 1.2% 276,200 0% 0.04% $2,748,190
BERKLEY W R CORP 1.2% 273,849 0% 0.13% $2,724,798
Linden Advisors LP 1.1% 250,000 0% 0.01% $2,487,500
MMCAP International Inc. SPC 1.1% 250,000 0.21% $2,487,500
Hudson Bay Capital Management LP 0.98% 225,000 0% 0.01% $2,238,750
Mint Tower Capital Management B.V. 0.98% 225,000 0% 0.26% $2,239,000
TWO SIGMA INVESTMENTS, LP 0.88% 201,517 0% 0% $2,005,094
Context Capital Management, LLC 0.87% 200,601 0% 0.04% $1,995,980

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
2
Latest
Q2 2026
Rows shown
1-2 of 2
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 13,809,103 $137,399,876 +$24,262,906 $9.95 40
2026 Q1 11,372,870 $111,927,284 +$107,602,014 $9.84 31
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