BEST SPAC I Acquisition BSAA Institutional Ownership

NASDAQ BSAA

$12.00 +0.71 (+6.29%)

As of: Aug 21, 2026 · 3:59 PM EDT

Institutions by Trading Activity

29 Institutions

Increased 9 31.0%

Unchanged 15 51.7%

Reduced 5 17.2%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

79.07%

▼-64.62 pp QoQ

Shares Held by Institutions

4.35Mn

of 5.50Mn outstanding

▲+5.47% QoQ

Shares Outstanding

5.50Mn

1.15Mn held outside 13F filers

Institutional Investors

filed 13F for Mar 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

+225.40K

accumulated since last quarter

Value of Holdings

$48.79Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

BEST SPAC I Acquisition Corp. (NASDAQ:BSAA) appears in 29 institutional 13F filings for the quarter ending March 2026.

Collectively, these holders controlled 79.1% of BEST SPAC I Acquisition's outstanding shares in March 2026, down from 143.7% in December 2025.
They increased total shares held in BEST SPAC I Acquisition by 5.47% from the prior quarter, while the number of investors in BSAA stayed flat year over year.
Activity in BSAA broke down as 9 buyers, 5 sellers, and 15 unchanged among 29 total holders.
In total, institutional investors held 4.35Mn shares in BEST SPAC I Acquisition as of March 2026, up by 225.4K shares quarter on quarter, and with no net change year over year.
MIZUHO SECURITIES USA LLC leads ownership in BSAA with 533.7K shares as of March 31, 2026, equal to 9.7% of outstanding shares.
The largest buyers of BEST SPAC I Acquisition for the quarter ending March 2026 were Berkley W R Corp (112.55K), Toronto Dominion Bank (43.1K), RLH Capital LLC (40.71K), Quarry LP (40.71K), BNP PARIBAS FINANCIAL MARKETS (4.68K).
The biggest sellers of BEST SPAC I Acquisition for the quarter ending March 2026 included GLAZER CAPITAL, LLC (10.1K), WOLVERINE ASSET MANAGEMENT LLC (7.41K), AQR Arbitrage LLC (4.23K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (904), Karpus Management, Inc. (694).
According to Business Quant data, leading holders of BSAA for March 2026 are MIZUHO SECURITIES USA LLC (533.7K), WOLVERINE ASSET MANAGEMENT LLC (518.58K), Berkley W R Corp (437.81K), RIVERNORTH CAPITAL MANAGEMENT, LLC (400.0K), Hudson Bay Capital Management LP (275.0K), Shaolin Capital Management LLC (223.32K), GLAZER CAPITAL, LLC (193.21K), Polar Asset Management Partners Inc. (185.1K), HEIGHTS CAPITAL MANAGEMENT, INC (175.0K), Karpus Management, Inc. (170.5K).

Form 13F Holdings

29 Institutional Holders

Report period 31 Mar, 2026

Total shares held 4.35Mn

Of outstanding 79.07%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	MIZUHO SECURITIES USA LLC	0000812291	533,699	9.70%	0	0.00%	$5.40Mn
2	WOLVERINE ASSET MANAGEMENT LLC	0001279891	518,575	9.43%	▼7,407	-1.41%	$5.32Mn
3	Berkley W R Corp	0000011544	437,808	7.96%	▲112,553	+34.60%	$4.48Mn
4	RIVERNORTH CAPITAL MANAGEMENT, LLC	0001447578	400,000	7.27%	0	0.00%	$4.10Mn
5	Hudson Bay Capital Management LP	0001393825	275,000	5.00%	0	0.00%	$2.82Mn
6	Shaolin Capital Management LLC	0001766806	223,317	4.06%	0	0.00%	$2.29Mn
7	GLAZER CAPITAL, LLC	0001076809	193,207	3.51%	▼10,101	-4.97%	$1.98K
8	Polar Asset Management Partners Inc.	0001326389	185,100	3.37%	▲100	+0.05%	$1.90Mn
9	HEIGHTS CAPITAL MANAGEMENT, INC	0001081698	175,000	3.18%	0	0.00%	$1.80Mn
10	Karpus Management, Inc.	0001048703	170,501	3.10%	▼694	-0.41%	$1.74Mn
11	Radcliffe Capital Management, L.P.	0001218275	170,000	3.09%	0	0.00%	$1.74Mn
12	Clear Street Group Inc.	0001881567	165,856	3.02%	▲3,926	+2.42%	$1.70Mn
13	BOOTHBAY FUND MANAGEMENT, LLC	0001549230	162,500	2.95%	0	0.00%	$1.67Mn
14	MMCAP International Inc. SPC	0001304857	125,000	2.27%	0	0.00%	$1.28Mn
15	AQR Arbitrage LLC	0001167456	109,800	2.00%	▼4,234	-3.71%	$1.12Mn
16	ARISTEIA CAPITAL, L.L.C.	0001080171	95,000	1.73%	0	0.00%	$974.70K
17	Toronto Dominion Bank	0000947263	50,000	0.91%	▲43,100	+624.64%	$513.00K
17	Westchester Capital Management, LLC	0001512805	50,000	0.91%	0	0.00%	$511.00K
17	L1 Global Manager Pty Ltd	0001878742	50,000	0.91%	0	0.00%	$513.00K
18	Mint Tower Capital Management B.V.	0001666606	45,000	0.82%	0	0.00%	$462

Showing 1 to 20 of 29 holders