Black Spade Acquisition III Co

BIII

Exchange: NYSE
Industry: Blank Checks
SEC CIK: 0002087087

SEC filings (opens in a new tab)

No open-market purchases or sales by Black Spade Acquisition III Co insiders were filed in the last 90 days; 40 institutions reported holding it in 13F filings for Q2 2026, worth $137.4M in total; no superinvestor holds it.

Other share classesBIII.UN BIII.WT

Q1 2026 vs. Q4 2025

How the institutions holding Black Spade Acquisition III Co changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of BIII: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Q1 2026	Change
Holders	0	31	+31
Shares	0	11.4M	+11.4M
Value	$0	$111.9M	+$111.9M

New holders (31)

Institutions that held Black Spade Acquisition III Co at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to BIII in Q1 2026
Institution	Shares	Value	% of portfolio
Aristeia Capital LLC	1,100,000	$10.8M	0.25%
Magnetar Financial LLC	999,993	$9.86M	0.10%
Tenor Capital Management Co., L.P.	1,000,000	$9.84M	0.15%
Healthcare of Ontario Pension Plan Trust Fund	825,000	$8.12M	0.01%
CNH Partners LLC	760,440	$7.48M	0.12%
Glazer Capital, LLC	500,000	$4.92M	0.10%
Alberta Investment Management Corp	500,000	$4.92M	0.03%
Fort Baker Capital Management LP	500,000	$4.92M	0.44%
BNP Paribas Arbitrage, SA	439,560	$4.33M	0.00%
Periscope Capital Inc.	418,800	$4.12M	0.72%
Shaolin Capital Management LLC	399,669	$3.93M	0.16%
Picton Mahoney Asset Management	375,000	$3.69M	0.04%
Radcliffe Capital Management, L.P.	350,018	$3.44M	0.26%
Vivaldi Asset Management, LLC	350,000	$3.44M	0.18%
Whitebox Advisors LLC	276,200	$2.72M	0.04%
Berkley W R Corp	273,849	$2.69M	0.14%
Linden Advisors LP	250,000	$2.46M	0.01%
Hudson Bay Capital Management LP	225,000	$2.21M	0.01%
Mint Tower Capital Management B.V.	225,000	$2.21M	0.22%
Toronto Dominion Bank	213,286	$2.10M	0.00%
Two Sigma Investments, LP	201,517	$1.98M	0.00%
Context Capital Management, LLC	200,601	$1.97M	0.05%
Clear Street Group Inc.	200,421	$1.97M	0.01%
Moore Capital Management, LP	200,000	$1.97M	0.07%
Millennium Management LLC	150,000	$1.48M	0.00%
Wolverine Asset Management LLC	100,000	$984.0K	0.02%
Verition Fund Management LLC	100,000	$984.0K	0.01%
Virtu Financial LLC	85,402	$840.0K	0.03%
Rivernorth Capital Management, LLC	78,114	$768.6K	0.04%
Parallax Volatility Advisers, L.P.	50,000	$494.0K	0.02%
StoneX Group Inc.	25,000	$246.0K	0.01%

Sold out (0)

Institutions that held Black Spade Acquisition III Co at the end of Q4 2025 and filed for Q1 2026 without it.

None.