Keystone Acquisition (KEYY): which funds own it
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Sections with a free account
No concentrated manager holds it.
Who owns Keystone Acquisition?
Holders that filed a Schedule 13D or 13G with the SEC for owning more than 5% of the shares: AQR Capital Management (13G filed Aug 13, 2026). As of Jun 30, 2026, the largest holders reported on Form 13F were Glazer Capital (1.4 million shares), Linden Advisors (1.3 million shares) and Meteora Capital (1.1 million shares).
Which institutions hold the most Keystone Acquisition shares?
Per Form 13F filings as of Jun 30, 2026:
- 1. Glazer Capital: 1.4 million shares
- 2. Linden Advisors: 1.3 million shares
- 3. Meteora Capital: 1.1 million shares
- 4. Polar Asset Management Partners: 1.1 million shares
- 5. Toronto Dominion Bank: 1.1 million shares
- 6. Sona Asset Management (us): 900,000 shares
- 7. Tenor Capital Management: 750,000 shares
- 8. First Trust Capital Management: 749,998 shares
- 9. Verition Fund Management: 664,259 shares
- 10. Hudson Bay Capital Management: 600,000 shares
Sources:13G by AQR Capital Management (Aug 13, 2026) ↗All of the company's proxy statements on EDGAR ↗
We hold 13D and 13G filings made since Dec 23, 2024: a holder above 5% that has not filed since then does not appear here.
Quarter flow (concentrated managers)
Concentrated managers holding it
None in the latest quarter.
Largest holders of KEYY (all 13F filers)
- Glazer Capital1.4 MType not verified+1.4 M
- Linden Advisors1.3 MType not verified+1.3 M
- Meteora Capital1.1 MType not verified+1.1 M
- Polar Asset Management Partners1.1 MType not verified+1.1 M
- Toronto Dominion Bank1.1 MBank or trading desk+1.1 M
- Sona Asset Management (us)900 KType not verified+900 K
- Tenor Capital Management750 KType not verified+750 K
- First Trust Capital Management750 KType not verified+750 K
- Verition Fund Management664 KType not verified+664 K
- Hudson Bay Capital Management600 KInvestment firm+600 K
- Shares
- 1.4 M
- Change
- +1.4 M
See more
- Type
- Type not verified
- Value
- $14.2M
- Shares
- 1.3 M
- Change
- +1.3 M
See more
- Type
- Type not verified
- Value
- $12.8M
- Shares
- 1.1 M
- Change
- +1.1 M
See more
- Type
- Type not verified
- Value
- $11.0M
- Shares
- 1.1 M
- Change
- +1.1 M
See more
- Type
- Type not verified
- Value
- $10.8M
- Shares
- 1.1 M
- Change
- +1.1 M
See more
- Type
- Bank or trading desk
- Value
- $10.6M
- Shares
- 900 K
- Change
- +900 K
See more
- Type
- Type not verified
- Value
- $8.9M
- Shares
- 750 K
- Change
- +750 K
See more
- Type
- Type not verified
- Value
- $7.4M
- Shares
- 750 K
- Change
- +750 K
See more
- Type
- Type not verified
- Value
- $7.4M
- Shares
- 664 K
- Change
- +664 K
See more
- Type
- Type not verified
- Value
- $6.5M
- Shares
- 600 K
- Change
- +600 K
See more
- Type
- Investment firm
- Value
- $5.9M
The 10 13F filers with the most shares as of Jun 30, 2026, whatever their type (index firms usually come first). “Change”: shares added or cut versus the previous quarter, split-adjusted; “no data” = there is no comparable portfolio for the previous quarter (no filing, or a filing with its holdings under confidential treatment). “% of the company” only where shares outstanding are up to date. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. With a free account: the top 25, the largest buyers and the largest sellers.
Fundamentals
Balance sheet only, for now. KEYY has not yet filed its first annual report (10-K) with the SEC, so there are no 12-month figures (revenue, margins, earnings and cash flow). We show the balance sheet from its latest filing; once the 12-month figures are available, this section fills in automatically.
- Cash and equivalents
- $1.1M
- Shareholders' equity
- $-10.6M
Balance sheet figures the company filed with the SEC (10-Q or 10-K), in dollars. Net debt = total debt − cash − investments; when negative, the company has more cash than debt (net cash). How each figure is calculated
Insiders (Form 4)
Open-market purchases, excluding 10b5-1 plans. Officers and directors only; joint filers of the same purchase count as one. 10% owners with no role are shown separately. 0 = nobody bought; “no data” = we do not have its Form 4 filings.
Each of the company's Form 4 filings, on EDGAR ↗Latest trades, with date and filing →
Above 5% (13D/13G)
Disclosed stakes, with their amendments. A filing is not always a purchase: there are also reductions and changes of filing entity.
This list may be incomplete: we hold 13D and 13G filings made since Dec 23, 2024. A holder above 5% that has not filed anything since then is not shown here.
- AQR Capital Management5.99%13Gfiling ↗Event: Jun 30, 2026 · filed: Aug 13, 2026
Above 5% over time (13D/13G)
Each holder with its filings in order. History since December 2024.
Flagged material events (8-K)
Unregistered sale of equity securities (Item 3.02)
«Keystone Acquisition Corp. Announces Pricing of $250 Million Initial Public Offering»
Change in directors or officers (Item 5.02)
«Keystone Acquisition Corp. Announces Pricing of $250 Million Initial Public Offering»
Alert items the company itself flagged in its 8-K filings with the SEC, most serious first. It is the form's label, with no interpretation from us: Item 5.02 covers routine appointments as well as a chief executive's departure; open the filing. The quoted headline is the original press release's.
All material events (8-K)
Earnings, agreements, financing, management changes and announcements from the last year, with a filter by type and a link to each filing.