13F reference period
Q2 2026
Security Snapshot
Keystone Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (KEYY) Institutional Ownership
CUSIP: G52539106
13F Institutional Holders and Ownership History from Q2 2026 to Q3 2026
Institutions Reporting
26
Shares (Excl. Options)
14.53M
Full value: 14,534,726 · shares · 30 Jun 2026Price
$9.86
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Class A ordinary shares, par value $0.0001 per share
- Symbol
- KEYY on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 14,534,726
- Total 13F value
- $143,312,195
- Portfolio coverage rank
- 0%
- Share change
- +14,534,726
- Value change
- +$143,312,195
- Number of holders
- 26
- Shares outstanding
- 28,769,199
- SEC-reported price per share
- $9.95
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- KEYY - Keystone Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share is tracked under CUSIP G52539106.
- 26 institutions reported positions in Q2 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- The headline uses Q2 2026 reported holdings.
- Quarter-over-quarter comparison is unavailable because the immediately preceding quarter is missing.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 26 institutions filings for Q2 2026.
Security key
G52539106
13F reference period
Q2 2026
13F holders
26
13D/G owners
1
CIK / CUSIP context first
Open Q2 2026 holders
KEYY full holder history
Keystone Acquisition Corp. SEC filings
Keystone Acquisition Corp. company facts
Keystone Acquisition Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G52539106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
KEYY
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC | 6% | $16,991,492 | 1,723,275 | AQR Capital Management, LLC | 30 Jun 2026 |
As of 30 Jun 2026,
26
institutional investors reported holding
shares of
Keystone Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (KEYY).
This represents
51%
of the company’s total
outstanding shares.
14.53M
Full value: 14,534,726 · shares · 30 Jun 202628.77M
Full value: 28,769,199 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
50%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GLAZER CAPITAL, LLC | 5% | 1,437,045 | 0.35% | $14,169,000 | |
| Linden Advisors LP | 4.5% | 1,300,000 | 0.07% | $12,818,000 | |
| Meteora Capital, LLC | 3.9% | 1,116,282 | 0.91% | $11,006,541 | |
| Polar Asset Management Partners Inc. | 3.8% | 1,100,000 | 0.2% | $10,846,000 | |
| TORONTO DOMINION BANK | 3.8% | 1,079,982 | 0.02% | $10,648,623 | |
| SONA ASSET MANAGEMENT (US) LLC | 3.1% | 900,000 | 0.33% | $8,874,000 | |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 2.6% | 750,000 | 0.1% | $7,395,000 | |
| First Trust Capital Management L.P. | 2.6% | 749,998 | 0.43% | $7,394,980 | |
| Verition Fund Management LLC | 2.3% | 664,259 | 0.05% | $6,549,594 | |
| Hudson Bay Capital Management LP | 2.1% | 600,000 | 0.03% | $5,916,000 | |
| BOOTHBAY FUND MANAGEMENT, LLC | 1.8% | 513,535 | 0.1% | $5,063,455 | |
| Periscope Capital Inc. | 1.7% | 499,800 | 0.78% | $4,928,028 | |
| TWO SIGMA INVESTMENTS, LP | 1.6% | 453,124 | 0% | $4,467,803 | |
| CSS LLC/IL | 1.6% | 451,508 | 0.2% | $4,451,869 | |
| Shaolin Capital Management LLC | 1.6% | 448,734 | 0.41% | $4,424,517 | |
| Centiva Capital, LP | 1.5% | 425,000 | 0.14% | $4,190,500 | |
| Clear Street Group Inc. | 1.1% | 302,829 | 0.01% | $2,985,894 | |
| Saba Capital Management, L.P. | 1% | 299,995 | 0.09% | $2,957,951 | |
| K2 PRINCIPAL FUND, L.P. | 1% | 293,023 | 0.34% | $2,889,207 | |
| O'Connor Alternative Investments LLC | 0.87% | 250,000 | 0.18% | $2,465,000 | |
| WOLVERINE ASSET MANAGEMENT LLC | 0.7% | 200,900 | 0.03% | $1,980,874 | |
| Mint Tower Capital Management B.V. | 0.7% | 200,000 | 0.23% | $1,972,000 | |
| StoneX Group Inc. | 0.67% | 193,290 | 0.08% | $1,905,839 | |
| Governors Lane LP | 0.63% | 181,383 | 0.18% | $1,788,436 | |
| BERKLEY W R CORP | 0.35% | 99,400 | 0.05% | $980,084 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
2
Headline period
Q2 2026
Rows shown
1-2 of 2