Comparable stake leader
JATT Ventures III L.P.
SEC ownership of JATT III Acquisition Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002145659.
Disclosed value leader
JATT Ventures III L.P.
Comparable rows
5/6
Latest evidence
27 Aug 2026
- Parsed ownership sources
-
3/4/5 and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
JATT Ventures III L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
5 of 6
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
JATT Ventures III L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
27 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002145659
- Issuer location
- Westfield, NJ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of JATT III Acquisition Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
JATT Ventures III L.P.
Disclosed value leader
JATT Ventures III L.P.
Comparable rows
5/6
Latest evidence
27 Aug 2026
3/4/5
13D/G
Lead comparable stake: 22%
1 rows are not safely comparable across share classes.
13D/G row: JATT Ventures III L.P.
Quick read
JATT Ventures III L.P. leads the comparable SEC ownership view at 22%.
5 of 6 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens JATT Ventures III L.P.'s linked filing trail.
Comparable ownership
Top 5
JATT Ventures III L.P.
22%
Deep Track Capital, LP
5.8%
GREAT POINT PARTNERS LLC
5.8%
Commodore Capital LP
5.2%
RA CAPITAL MANAGEMENT, L.P.
5.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 6 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| JATT Ventures III L.P. |
3/4/5
13D/G
10%+ Owner
|
22%
from 13D/G
|
$19,590,000
1,959,000 shares
|
+$2,340,000 | 27 Aug 2026 |
| Deep Track Capital, LP |
13D/G
|
5.8%
|
—
450,000 shares
|
$0 | 26 Aug 2026 |
| GREAT POINT PARTNERS LLC |
13D/G
|
5.8%
|
—
450,000 shares
|
$0 | 26 Aug 2026 |
| Commodore Capital LP |
13D/G
|
5.2%
|
—
400,000 shares
|
$0 | 26 Aug 2026 |
| RA CAPITAL MANAGEMENT, L.P. |
13D/G
|
5.1%
|
—
450,000 shares
|
$0 | 27 Aug 2026 |
| Someit Sidhu |
3/4/5
CEO and Chairman, Director, 10%+ Owner
|
—
class O/S missing
|
$19,590,000
1,959,000 shares
|
+$2,340,000 | 27 Aug 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$4,680,000.
Buys
$4,680,000
Insiders: 2
Sells
$0
Insiders: 0
Net
+$4,680,000
Shares: +468,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 468,000
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 468,000 | 0 | $4,680,000 | $0 | +$4,680,000 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-7 of 7 reporting-owner rows connected to JATT III Acquisition Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
7
Largest Forms 3/4/5 holder
Someit Sidhu
Net 12M change
+$4,680,000
Latest report
27 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Someit Sidhu | CEO and Chairman, Director, 10%+ Owner | $19,590,000 | +$2,340,000 | +14% | Filing P/S | 27 Aug 2026 |
| JATT Ventures III L.P. | 10%+ Owner | $19,590,000 | +$2,340,000 | +14% | Filing P/S | 27 Aug 2026 |
| Christopher Staral | Director | Mixed | 25 Aug 2026 | |||
| Nicholas Fernandez | Director | Mixed | 25 Aug 2026 | |||
| Arjun Goyal | Director | Mixed | 25 Aug 2026 | |||
| Verender S. Badial | Director | Mixed | 25 Aug 2026 | |||
| Jonathon Kluft | Director | Mixed | 25 Aug 2026 |
Recent insider transactions for JATT III Acquisition Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| JATT Ventures III L.P. | Ordinary Shares | Purchase | 13.6% | $2,340,000 | $10.00 | 234,000 | 1,959,000 | 27 Aug 2026 | Direct | |
| JATT Ventures III L.P. | Ordinary Shares | Purchase | 13.6% | $2,340,000 | $10.00 | 234,000 | 1,959,000 | 27 Aug 2026 | Direct |
* marks a reported price that did not pass the local price check.