Latest Period
Q2 2026
Security Snapshot
JATT II Acquisition Corp. - Ordinary Shares, par value $0.0001 per share (JATT) Institutional Ownership
CUSIP: G50765109
13F Institutional Holders and Ownership History for Q2 2026
Institutions Reporting
25
Shares (Excl. Options)
5,437,682
Price
$11.36
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- Security type / class
- Equity / Ordinary Shares, par value $0.0001 per share
- Symbol
- JATT on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 5,437,682
- Total 13F value
- $61,744,568
- Portfolio coverage rank
- 0%
- Share change
- +4,937,682
- Value change
- +$56,092,068
- Number of holders
- 25
- Shares outstanding
- 7,735,630
- SEC-reported price per share
- $11.80
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
Key facts
- JATT - JATT II Acquisition Corp. - Ordinary Shares, par value $0.0001 per share is tracked under CUSIP G50765109.
- 25 institutions reported positions in Q2 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Latest quarter on this page is Q2 2026.
- Additional quarter-over-quarter change detail appears as history expands.
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 25 institutions filings for Q2 2026.
Security key
G50765109
Latest holder period
Q2 2026
13F holders
25
13D/G owners
5
CIK / CUSIP context first
Open Q2 2026 holders
JATT full holder history
JATT II Acquisition Corp. SEC filings
JATT II Acquisition Corp. company facts
JATT II Acquisition Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G50765109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
JATT
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Janus Henderson Group Ltd. | 6.2% | $6,000,000 | 500,000 | JANUS HENDERSON GROUP Ltd. | 30 Jun 2026 | |||
| BALYASNY ASSET MANAGEMENT L.P. | 6.2% | $6,000,000 | 500,000 | BALYASNY ASSET MANAGEMENT L.P. | 30 Jun 2026 | |||
| GREAT POINT PARTNERS LLC | 6.2% | $6,000,000 | 500,000 | Great Point Partners, LLC | 30 Jun 2026 | |||
| ADAR1 Capital Management, LLC | 5.4% | $5,012,688 | 417,724 | ADAR1 Capital Management, LLC | 30 Jun 2026 | |||
| Atika Capital Management LLC | 5.1% | $4,800,000 | 400,000 | Atika Capital Management LLC | 30 Jun 2026 |
As of 30 Jun 2026, 25 institutional investors reported holding 5,437,682 shares of JATT II Acquisition Corp. - Ordinary Shares, par value $0.0001 per share (JATT). This represents 70% of the company’s total 7,735,630 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
70%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GREAT POINT PARTNERS LLC | 6.5% | 500,000 | 1.3% | $5,680,000 | |
| Balyasny Asset Management L.P. | 6.5% | 500,000 | 0.01% | $5,680,000 | |
| Jupiter Topco LLC | 6.5% | 500,000 | 0% | 0% | $5,652,500 |
| RA CAPITAL MANAGEMENT, L.P. | 6.5% | 500,000 | 0.05% | $5,680,000 | |
| ADAR1 Capital Management, LLC | 5.4% | 417,724 | 0.22% | $4,745,345 | |
| Atika Capital Management LLC | 5.2% | 400,000 | 0.45% | $4,544,000 | |
| FRANKLIN RESOURCES INC | 5.2% | 400,000 | 0% | $4,544,000 | |
| CITADEL ADVISORS LLC | 4.1% | 319,986 | 0% | $3,635,041 | |
| FARALLON CAPITAL MANAGEMENT, L.L.C. | 3.9% | 300,000 | 0.02% | $3,408,000 | |
| BRAIDWELL LP | 3.2% | 250,000 | 0.11% | $2,840,000 | |
| Nantahala Capital Management, LLC | 2.9% | 225,000 | 0.15% | $2,556,000 | |
| Affinity Asset Advisors, LLC | 2.6% | 200,000 | 0.11% | $2,272,000 | |
| TCG Crossover Management, LLC | 2.6% | 200,000 | 0.05% | $2,272,000 | |
| Spruce Street Capital LP | 2.1% | 160,000 | 0.36% | $1,817,600 | |
| MILLENNIUM MANAGEMENT LLC | 2.1% | 159,683 | 0% | $1,813,999 | |
| Logos Global Management LP | 1.3% | 100,000 | 0.05% | $1,136,000 | |
| TWO SIGMA INVESTMENTS, LP | 1.2% | 96,165 | 0% | $1,092,434 | |
| TORONTO DOMINION BANK | 0.65% | 50,500 | 0% | $573,680 | |
| Woodline Partners LP | 0.65% | 50,000 | 0% | $568,000 | |
| Magnetar Financial LLC | 0.62% | 47,908 | 0% | $544,235 | |
| 683 Capital Management, LLC | 0.55% | 42,264 | 0.04% | $480,119 | |
| DIADEMA PARTNERS LP | 0.12% | 9,021 | 0.04% | $102,479 | |
| Clear Street Group Inc. | 0.09% | 7,123 | 0% | $80,917 | |
| Persistent Asset Partners Ltd | 0.03% | 2,300 | 0.01% | $26,128 | |
| MORGAN STANLEY | 0% | 8 | 0% | $91 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
1
Latest
Q2 2026
Rows shown
1-1 of 1
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 5,437,682 | $61,744,568 | +$56,092,068 | $11.36 | 25 |