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KEYYNasdaqBlank ChecksFiscal year ends December 31Also trades as KEYYU, KEYYW

Keystone Acquisition Corp.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$9.95+0.00 (0.00%)

Close on Oct 19, 2026

Market cap
–
P/E (TTM)
–
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
15M
Shares held, 13F filers
Institutional holders
26
26 new, 0 sold out
Net institutional buying
15M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Magnetar Financial LLC2,000,0006.96%13G (passive)Jun 30, 2026
AQR Capital Management Holdings, LLC1,723,2755.99%13G (passive)Jun 30, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of KEYYValueChange% of portfolio
Glazer Capital, LLC1,437,045–$14.17KNew0.35%
Linden Advisors LP1,300,000–$12.82MNew0.07%
Meteora Capital, LLC1,116,282–$11.01MNew0.91%
Polar Asset Management Partners Inc.1,100,000–$10.85MNew0.18%
Toronto Dominion Bank1,079,982–$10.65MNew0.01%
Sona Asset Management (US) LLC900,000–$8.87MNew0.19%
TENOR CAPITAL MANAGEMENT Co., L.P.750,000–$7.40MNew0.10%
First Trust Capital Management L.P.749,998–$7.39MNew0.43%
Verition Fund Management LLC664,259–$6.55MNew0.03%
Hudson Bay Capital Management LP600,000–$5.92MNew0.02%
Boothbay Fund Management, LLC513,535–$5.06MNew0.07%
Periscope Capital Inc.499,800–$4.93MNew0.43%
Two Sigma Investments, LP453,124–$4.47MNew0.00%
Css LLC/Il451,508–$4.45MNew0.17%
Shaolin Capital Management LLC448,734–$4.42MNew0.21%
Centiva Capital, LP425,000–$4.19MNew0.04%
Clear Street Group Inc.302,829–$2.99MNew0.01%
Saba Capital Management, L.P.299,995–$2.96MNew0.08%
K2 Principal Fund, L.P.293,023–$2.89MNew0.21%
O'Connor Alternative Investments LLC250,000–$2.47MNew0.18%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares heldNew / addedReduced / closedShares boughtShares sold
Q2 20262615M26 / 00 / 015M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of KEYYValue% of fundAs of
First Trust Merger Arbitrage Fund642,232–$6.33M0.39%Jun 30, 2026
First Trust Multi-Strategy Fund103,934–$1.02M0.08%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares ownedLatest filing
International Acquisition Management LLC KeystoneExecutive Chairman, Director, 10% owner–Jun 2, 2026
Jaiho ChoChief Financial Officer–Jun 2, 2026
Richard H. ChinChief Executive Officer–Jun 2, 2026
John A. BOEHNERDirector–Jun 2, 2026
Martin J. PayneDirector–Jun 2, 2026
Jae Hyun ParkDirector, 10% owner–Jun 2, 2026
Paul Yoonku ChoDirector–Jun 2, 2026