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Livermore
Livermore
ZHEN

Keystone Acquisition Corp.

KEYYW
Exchange
Nasdaq
Industry
Blank Checks
SEC CIK
0002102771

No open-market purchases or sales by Keystone Acquisition Corp. insiders were filed in the last 90 days; 22 institutions reported holding it in 13F filings for Q2 2026, worth $2.92M in total; no superinvestor holds it.

Other share classesKEYYKEYYU

Q2 2026 vs. Q1 2026

How the institutions holding Keystone Acquisition Corp. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of KEYYW: Q1 2026 compared with Q2 2026
MeasureQ1 2026Q2 2026Change
Holders022+22
Shares06.90M+6.90M
Value$0$2.92M+$2.92M

New holders (22)

Institutions that held Keystone Acquisition Corp. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to KEYYW in Q2 2026
InstitutionSharesValue% of portfolio
Harraden Circle Investments, LLC908,070$399.5K0.05%
Glazer Capital, LLC668,221$294.0K0.01%
Linden Advisors LP696,893$292.8K0.00%
Meteora Capital, LLC556,690$244.9K0.02%
Polar Asset Management Partners Inc.550,000$241.9K0.00%
Sona Asset Management (US) LLC450,000$198.0K0.01%
Tenor Capital Management Co., L.P.375,000$165.0K0.00%
Verition Fund Management LLC323,729$144.4K0.00%
Hudson Bay Capital Management LP300,000$133.8K0.00%
Clear Street Group Inc.272,649$119.9K0.00%
Periscope Capital Inc.249,900$109.9K0.02%
Shaolin Capital Management LLC239,250$105.2K0.01%
CSS LLC238,875$105.1K0.00%
Centiva Capital, LP212,500$94.8K0.00%
K2 Principal Fund, L.P.150,000$66.0K0.01%
Saba Capital Management, L.P.149,999$66.0K0.00%
Mint Tower Capital Management B.V.100,000$44.0K0.01%
Wolverine Asset Management LLC95,397$42.0K0.00%
Governors Lane LP90,691$39.9K0.00%
Toronto Dominion Bank17,760$7.81K0.00%
Highbridge Capital Management LLC–$2150.00%
Boothbay Fund Management, LLC256,329––

Sold out (0)

Institutions that held Keystone Acquisition Corp. at the end of Q1 2026 and filed for Q2 2026 without it.

None.