Keystone Acquisition KEYY Institutional Ownership

NASDAQ KEYY

$9.92 +0.01 (+0.10%)

As of: Oct 26, 2026 · 3:42 PM EDT

Institutions by Trading Activity

26 Institutions

Increased 26 100.0%

Unchanged 0 0.0%

Reduced 0 0.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

37.92%

Shares Held by Institutions

14.53Mn

of 38.33Mn outstanding

■0.00% QoQ

Shares Outstanding

38.33Mn

23.80Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

Net Shares Added (QoQ)

+14.53Mn

accumulated since last quarter

Value of Holdings

$144.04Mn

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

Updated Oct 10, 2026

Keystone Acquisition Corp. (NASDAQ:KEYY) was held by 26 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

These investors owned 37.92% of Keystone Acquisition's outstanding stock in Q2 2026.
Institutional investors held 14.53Mn shares of Keystone Acquisition in total at the end of Q2 2026.
As of June 30, 2026, Glazer Capital, LLC held the largest stake in Keystone Acquisition with 1.44Mn shares, or 3.75% of shares outstanding.
Per Business Quant, the top 10 investors in KEYY for the quarter ended June 30, 2026 were Glazer Capital, LLC (1.44Mn shares), Linden Advisors LP (1.3Mn shares), Meteora Capital, LLC (1.12Mn shares), Polar Asset Management Partners Inc. (1.1Mn shares), Toronto Dominion Bank (1.08Mn shares), Sona Asset Management (US) LLC (900K shares), Tenor Capital Management Co., L.P. (750K shares), First Trust Capital Management L.P. (750K shares), Verition Fund Management LLC (664.26K shares) and Hudson Bay Capital Management LP (600K shares).

Form 13F Holdings

26 Institutional Holders

Report period 30 Jun, 2026

Total shares held 14.53Mn

Of outstanding 37.92%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	GLAZER CAPITAL, LLC	0001076809	1,437,045	3.75%	▲1,437,045	0.00%	$14.17K
2	LINDEN ADVISORS LP	0001279396	1,300,000	3.39%	▲1,300,000	0.00%	$12.82Mn
3	METEORA CAPITAL, LLC	0001905106	1,116,282	2.91%	▲1,116,282	0.00%	$11.01Mn
4	Polar Asset Management Partners Inc.	0001326389	1,100,000	2.87%	▲1,100,000	0.00%	$10.85Mn
5	Toronto Dominion Bank	0000947263	1,079,982	2.82%	▲1,079,982	0.00%	$10.65Mn
6	SONA ASSET MANAGEMENT (US) LLC	0001856405	900,000	2.35%	▲900,000	0.00%	$8.87Mn
7	TENOR CAPITAL MANAGEMENT Co., L.P.	0001346554	750,000	1.96%	▲750,000	0.00%	$7.40Mn
8	First Trust Capital Management L.P.	0001604488	749,998	1.96%	▲749,998	0.00%	$7.39Mn
9	Verition Fund Management LLC	0001454027	664,259	1.73%	▲664,259	0.00%	$6.55Mn
10	Hudson Bay Capital Management LP	0001393825	600,000	1.57%	▲600,000	0.00%	$5.92Mn
11	BOOTHBAY FUND MANAGEMENT, LLC	0001549230	513,535	1.34%	▲513,535	0.00%	$5.06Mn
12	PERISCOPE CAPITAL INC.	0001695320	499,800	1.30%	▲499,800	0.00%	$4.93Mn
13	TWO SIGMA INVESTMENTS, LP	0001179392	453,124	1.18%	▲453,124	0.00%	$4.47Mn
14	CSS LLC/IL	0001103646	451,508	1.18%	▲451,508	0.00%	$4.45Mn
15	Shaolin Capital Management LLC	0001766806	448,734	1.17%	▲448,734	0.00%	$4.42Mn
16	Centiva Capital, LP	0001692507	425,000	1.11%	▲425,000	0.00%	$4.19Mn
17	Clear Street Group Inc.	0001881567	302,829	0.79%	▲302,829	0.00%	$2.99Mn
18	Saba Capital Management, L.P.	0001510281	299,995	0.78%	▲299,995	0.00%	$2.96Mn
19	K2 PRINCIPAL FUND, L.P.	0001461790	293,023	0.76%	▲293,023	0.00%	$2.89Mn
20	O'Connor Alternative Investments, LLC	0002081629	250,000	0.65%	▲250,000	0.00%	$2.47Mn

Showing 1 to 20 of 26 holders