Latest 10-Q

What changed in Keystone Acquisition Corp.'s latest quarterly report, compared with the one before.

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IPO prospectus

Keystone Acquisition Corp.’s initial public offering: where it stands and what the registration statement says.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.

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13F holders

Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.

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Lobbying

What Keystone Acquisition Corp. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

About the company

The basics from the company’s SEC registration.

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$9.94$0.00 (0.00%) Nov 13 close
Oct 13, 2026: $9.93Oct 14, 2026: $9.93Oct 15, 2026: $9.93Oct 16, 2026: $9.95Oct 19, 2026: $9.95Oct 20, 2026: $9.95Oct 21, 2026: $9.95Oct 22, 2026: $9.95Oct 23, 2026: $9.91Oct 26, 2026: $9.92Oct 27, 2026: $9.92Oct 28, 2026: $9.92Oct 29, 2026: $9.92Oct 30, 2026: $9.92Nov 2, 2026: $9.92Nov 3, 2026: $9.94Nov 4, 2026: $9.93Nov 5, 2026: $9.92Nov 6, 2026: $9.92Nov 9, 2026: $9.93Nov 10, 2026: $9.93Nov 11, 2026: $9.93Nov 12, 2026: $9.94Nov 13, 2026: $9.94
Oct 13, 2026Low $9.91 · High $9.95Nov 13, 2026
Aug 13, 2026: $9.88Aug 14, 2026: $9.89Aug 17, 2026: $9.88Aug 18, 2026: $9.88Aug 19, 2026: $9.88Aug 20, 2026: $9.88Aug 21, 2026: $9.88Aug 24, 2026: $9.90Aug 25, 2026: $9.88Aug 26, 2026: $9.89Aug 27, 2026: $9.90Aug 28, 2026: $9.90Aug 31, 2026: $9.90Sep 1, 2026: $9.90Sep 2, 2026: $9.92Sep 3, 2026: $9.92Sep 4, 2026: $9.92Sep 8, 2026: $9.91Sep 9, 2026: $9.91Sep 10, 2026: $9.90Sep 11, 2026: $9.90Sep 14, 2026: $9.91Sep 15, 2026: $9.91Sep 16, 2026: $9.92Sep 17, 2026: $9.91Sep 18, 2026: $9.91Sep 21, 2026: $9.91Sep 22, 2026: $9.91Sep 23, 2026: $9.91Sep 24, 2026: $9.91Sep 25, 2026: $9.91Sep 28, 2026: $9.92Sep 29, 2026: $9.92Sep 30, 2026: $9.95Oct 1, 2026: $9.92Oct 2, 2026: $9.95Oct 5, 2026: $9.93Oct 6, 2026: $9.93Oct 7, 2026: $9.93Oct 8, 2026: $9.93Oct 9, 2026: $9.93Oct 12, 2026: $9.93Oct 13, 2026: $9.93Oct 14, 2026: $9.93Oct 15, 2026: $9.93Oct 16, 2026: $9.95Oct 19, 2026: $9.95Oct 20, 2026: $9.95Oct 21, 2026: $9.95Oct 22, 2026: $9.95Oct 23, 2026: $9.91Oct 26, 2026: $9.92Oct 27, 2026: $9.92Oct 28, 2026: $9.92Oct 29, 2026: $9.92Oct 30, 2026: $9.92Nov 2, 2026: $9.92Nov 3, 2026: $9.94Nov 4, 2026: $9.93Nov 5, 2026: $9.92Nov 6, 2026: $9.92Nov 9, 2026: $9.93Nov 10, 2026: $9.93Nov 11, 2026: $9.93Nov 12, 2026: $9.94Nov 13, 2026: $9.94
Aug 13, 2026Low $9.88 · High $9.95Nov 13, 2026
Jun 22, 2026: $9.92Jun 23, 2026: $9.88Jun 24, 2026: $9.87Jun 25, 2026: $9.87Jun 26, 2026: $9.86Jun 29, 2026: $9.86Jun 30, 2026: $9.86Jul 1, 2026: $9.88Jul 2, 2026: $9.88Jul 6, 2026: $9.88Jul 7, 2026: $9.87Jul 8, 2026: $9.87Jul 9, 2026: $9.90Jul 10, 2026: $9.87Jul 13, 2026: $9.87Jul 14, 2026: $9.87Jul 15, 2026: $9.86Jul 16, 2026: $9.86Jul 17, 2026: $9.86Jul 20, 2026: $9.87Jul 21, 2026: $9.87Jul 22, 2026: $9.87Jul 23, 2026: $9.87Jul 24, 2026: $9.86Jul 27, 2026: $9.86Jul 28, 2026: $9.85Jul 29, 2026: $9.85Jul 30, 2026: $9.88Jul 31, 2026: $9.86Aug 3, 2026: $9.86Aug 4, 2026: $9.87Aug 5, 2026: $9.87Aug 6, 2026: $9.85Aug 7, 2026: $9.85Aug 10, 2026: $9.85Aug 11, 2026: $9.85Aug 12, 2026: $9.87Aug 13, 2026: $9.88Aug 14, 2026: $9.89Aug 17, 2026: $9.88Aug 18, 2026: $9.88Aug 19, 2026: $9.88Aug 20, 2026: $9.88Aug 21, 2026: $9.88Aug 24, 2026: $9.90Aug 25, 2026: $9.88Aug 26, 2026: $9.89Aug 27, 2026: $9.90Aug 28, 2026: $9.90Aug 31, 2026: $9.90Sep 1, 2026: $9.90Sep 2, 2026: $9.92Sep 3, 2026: $9.92Sep 4, 2026: $9.92Sep 8, 2026: $9.91Sep 9, 2026: $9.91Sep 10, 2026: $9.90Sep 11, 2026: $9.90Sep 14, 2026: $9.91Sep 15, 2026: $9.91Sep 16, 2026: $9.92Sep 17, 2026: $9.91Sep 18, 2026: $9.91Sep 21, 2026: $9.91Sep 22, 2026: $9.91Sep 23, 2026: $9.91Sep 24, 2026: $9.91Sep 25, 2026: $9.91Sep 28, 2026: $9.92Sep 29, 2026: $9.92Sep 30, 2026: $9.95Oct 1, 2026: $9.92Oct 2, 2026: $9.95Oct 5, 2026: $9.93Oct 6, 2026: $9.93Oct 7, 2026: $9.93Oct 8, 2026: $9.93Oct 9, 2026: $9.93Oct 12, 2026: $9.93Oct 13, 2026: $9.93Oct 14, 2026: $9.93Oct 15, 2026: $9.93Oct 16, 2026: $9.95Oct 19, 2026: $9.95Oct 20, 2026: $9.95Oct 21, 2026: $9.95Oct 22, 2026: $9.95Oct 23, 2026: $9.91Oct 26, 2026: $9.92Oct 27, 2026: $9.92Oct 28, 2026: $9.92Oct 29, 2026: $9.92Oct 30, 2026: $9.92Nov 2, 2026: $9.92Nov 3, 2026: $9.94Nov 4, 2026: $9.93Nov 5, 2026: $9.92Nov 6, 2026: $9.92Nov 9, 2026: $9.93Nov 10, 2026: $9.93Nov 11, 2026: $9.93Nov 12, 2026: $9.94Nov 13, 2026: $9.94
Jun 22, 2026Low $9.85 · High $9.95Nov 13, 2026
Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.