AMPERCAP ACQUISITION CO (APMCR)

Institutional ownership reported to the SEC as of Q2 2026, across 1 quarters.

Reporting holders

$84.4M

Reported value

42.2%

Of shares outstanding

0.0%

Held as options

+39

Holder change

Institutions report 8,427,547 shares against 19,958,575 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

Filer	Value	Shares	Their book	Held	Change
Magnetar Financial LLC	$12.0M	1,200,000	0.11%	new	NEW
Wealthspring Capital LLC	$9.7M	963,290	2.16%	new	NEW
AQR Arbitrage LLC	$6.5M	651,015	0.09%	new	NEW
First Trust Capital Management L.P.	$6.3M	630,601	0.37%	new	NEW
CANTOR FITZGERALD, L. P.	$4.3M	422,898	0.02%	new	NEW
Shaolin Capital Management LLC	$4.1M	405,851	0.19%	new	NEW
Clear Street Group Inc.	$4.0M	422,655	0.01%	new	NEW
TUDOR INVESTMENT CORP ET AL	$3.2M	315,000	0.00%	new	NEW
RIVERNORTH CAPITAL MANAGEMENT, LLC	$3.0M	300,000	0.14%	new	NEW
LMR Partners LLP	$2.5M	250,000	0.01%	new	NEW
BERKLEY W R CORP	$2.5M	247,605	0.12%	new	NEW
TORONTO DOMINION BANK	$2.0M	200,000	0.00%	new	NEW
WHITEBOX ADVISORS LLC	$2.0M	200,000	0.03%	new	NEW
BNP PARIBAS FINANCIAL MARKETS	$2.0M	198,985	0.00%	new	NEW
Periscope Capital Inc.	$1.8M	175,500	0.15%	new	NEW
Linden Advisors LP	$1.8M	175,000	0.01%	new	NEW
ARISTEIA CAPITAL, L.L.C.	$1.5M	150,000	0.02%	new	NEW
Radcliffe Capital Management, L.P.	$1.5M	150,000	0.11%	new	NEW
Yakira Capital Management, Inc.	$1.5M	150,000	0.43%	new	NEW
Calamos Advisors LLC	$1.5M	150,000	0.01%	new	NEW
MOORE CAPITAL MANAGEMENT, LP	$1.3M	130,000	0.02%	new	NEW
Westchester Capital Management, LLC	$1.3M	130,000	0.06%	new	NEW
GRITSTONE ASSET MANAGEMENT LLC	$1.3M	124,988	1.21%	new	NEW
Parallax Volatility Advisers, L.P.	$1.2M	124,064	0.00%	new	NEW
L1 Global Manager Pty Ltd	$753.0K	75,000	0.53%	new	NEW
Bulldog Investors, LLP	$753.0K	75,000	0.17%	new	NEW
Hartree Partners, LP	$750.0K	75,000	0.16%	new	NEW
DLD Asset Management, LP	$602.4K	60,000	0.04%	new	NEW
Schonfeld Strategic Advisors LLC	$492.9K	49,095	0.00%	new	NEW
BOOTHBAY FUND MANAGEMENT, LLC	$401.6K	40,000	0.01%	new	NEW
Crossingbridge Advisors, LLC	$351.4K	35,000	0.06%	new	NEW
ABC ARBITRAGE SA	$301.2K	30,000	0.03%	new	NEW
StoneX Group Inc.	$251.0K	25,000	0.01%	new	NEW
Lineage Point Capital LP	$251.0K	25,000	0.05%	new	NEW
CITADEL ADVISORS LLC	$249.1K	24,790	0.00%	new	NEW
ROBINSON CAPITAL MANAGEMENT, LLC	$150.4K	15,000	0.07%	new	NEW
Evercore Wealth Management, LLC	$139.1K	13,850	0.00%	new	NEW
CONDOR CAPITAL MANAGEMENT	$129.1K	12,860	0.01%	new	NEW
Arax Advisory Partners	$45.2K	4,500	0.00%	new	NEW
GLAZER CAPITAL, LLC	$6.9K	690,000	0.17%	new	NEW
Mint Tower Capital Management B.V.	$1.3K	125,000	0.14%	new	NEW
Kepos Capital LP	$602	60,000	0.82%	new	NEW
HRT FINANCIAL LP	$244	24,392	0.00%	new	NEW

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

Filed	Form	Filer	% of class
2026-08-12	13G	Adage Capital Management, L.P. SPACwith 2 co-filers	5.6%
2026-07-09	13G	Wealthspring Capital LLC SPACwith 1 co-filers	5.5%

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

Quarter	Holders	Value	Shares	New	Added	Trimmed	Options
Q2 2026	39	$84.4M	8,427,547	39	0	0	0.0%