Who owns AACIWhat AACI owns — n/a

Who owns Armada Acquisition Corp. III?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.

Institutional ownership of AACI from SEC Form 13F filings across 48 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.

As of the 2026-06-30 reporting period, 48 institutions disclosed 19.8M shares of Armada Acquisition Corp. III worth $197.6M — about 79.7% of shares outstanding; the largest disclosed holder is ADAGE CAPITAL PARTNERS GP, L.L.C.. Source: SEC Form 13F filings, parsed by EvidInvest.

13F holders

$197.6M

value, 2026 filers

79.7%

of shares outstanding (19.8M sh)

new positions (2026 filers)

Top institutional holders

ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AACI's shares outstanding

#	Manager	Shares	Value	% of fund	% of co.	Δ shares QoQ
1	ADAGE CAPITAL PARTNERS GP, L.L.C.	2.0M	$20.2M	0.0%	8.1%	0.0%
2	Linden Advisors LPNEW	1.4M	$13.9M	0.1%	5.6%	new
3	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW	1.1M	$10.9M	0.0%	4.4%	new
4	WOLVERINE ASSET MANAGEMENT LLC	1.0M	$10.2M	0.1%	4.1%	+9705.5%
5	Magnetar Financial LLCNEW	1.0M	$9.9M	0.1%	4%	new
6	Polar Asset Management Partners Inc.NEW	900,000	$9.0M	0.1%	3.6%	new
7	Hudson Bay Capital Management LP	900,000	$9.0M	0.0%	3.6%	0.0%
8	AQR Arbitrage LLCNEW	739,995	$7.4M	0.1%	3%	new
9	TENOR CAPITAL MANAGEMENT Co., L.P.	700,000	$7.0M	0.1%	2.8%	0.0%
10	Alberta Investment Management CorpNEW	700,000	$7.0M	0.0%	2.8%	new
11	SONA ASSET MANAGEMENT (US) LLC	650,000	$6.5M	0.1%	2.6%	0.0%
12	GLAZER CAPITAL, LLCNEW	625,504	$6.2M	0.2%	2.5%	new
13	MILLENNIUM MANAGEMENT LLCNEW	612,000	$6.1M	0.0%	2.5%	new
14	WHITEBOX ADVISORS LLCNEW	550,000	$5.5M	0.1%	2.2%	new
15	BNP PARIBAS FINANCIAL MARKETSNEW	537,680	$5.3M	0.0%	2.2%	new
16	Radcliffe Capital Management, L.P.	426,213	$4.3M	0.3%	1.7%	+0.1%
17	Schonfeld Strategic Advisors LLC	417,507	$4.2M	0.0%	1.7%	+2285.8%
18	TWO SIGMA INVESTMENTS, LP	407,812	$4.1M	0.0%	1.6%	0.0%
19	Context Capital Management, LLCNEW	400,000	$4.0M	0.1%	1.6%	new
20	Crossingbridge Advisors, LLCNEW	400,000	$4.2M	0.7%	1.6%	new
21	HEIGHTS CAPITAL MANAGEMENT, INCNEW	365,000	$3.6M	0.8%	1.5%	new
22	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYSNEW	350,000	$3.5M	0.0%	1.4%	new
23	Kryger Capital LLCNEW	346,214	$3.5M	0.2%	1.4%	new
24	RIVERNORTH CAPITAL MANAGEMENT, LLCNEW	320,798	$3.2M	0.2%	1.3%	new
25	Verition Fund Management LLC	300,100	$3.0M	0.0%	1.2%	0.0%

Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.