JATT (JATT) CEO-linked sponsor adds 300K private placement shares

Rhea-AI Filing Summary

JATT II Acquisition Corp. director and CEO Dr. Someit Sidhu reported an indirect open-market style purchase linked to the company’s sponsor. An affiliated entity, JATT Ventures II L.P., bought 300,000 ordinary shares as private placement shares under an agreement dated April 16, 2026. Following this transaction, Dr. Sidhu is reported as having indirect ownership of 2,025,000 ordinary shares through the sponsor structure. The filing notes that up to 225,000 ordinary shares are subject to possible forfeiture depending on how the underwriter’s over-allotment option from the IPO was exercised, and Dr. Sidhu disclaims beneficial ownership beyond his economic interest.

Insights

Insider transactions analyst

CEO-linked sponsor entity acquires 300,000 private placement shares, increasing indirect holdings to 2,025,000.

The filing shows JATT Ventures II L.P., the SPAC sponsor associated with CEO Dr. Someit Sidhu, purchased 300,000 private placement ordinary shares under an agreement dated April 16, 2026. This raises indirect reported holdings to 2,025,000 ordinary shares.

The filing also states that up to 225,000 of these ordinary shares may be forfeited depending on the underwriter’s over-allotment option from the IPO. Dr. Sidhu has voting and investment discretion over the sponsor’s holdings but formally disclaims beneficial ownership beyond his pecuniary interest.

Insider Trade Summary

1 transaction reported

Net Buy 1 txn

Insider Sidhu Someit

Role Chief Executive Officer

Bought 300,000 shs ($0.00)

Type	Security	Shares	Price	Value
Purchase	Ordinary shares	300,000	$0.00	--

Holdings After Transaction: Ordinary shares — 2,025,000 shares (Indirect, See Footnote)

Footnotes (1)

1. Reflects the 300,000 private placement shares purchased by JATT Ventures II L.P., the Issuer's sponsor, pursuant to the Private Placement Shares Purchase Agreement dated April 16, 2026 entered into with the Issuer. Including up to 225,000 Ordinary Shares subject to forfeiture depending on the extent to which the Issuer's underwriter' over-allotment option was exercised during the Issuer's initial public offering. JATT Ventures II L.P. is the record holder of the securities reported herein. JATT Ventures II Ltd is the sole general partner of JATT Ventures II L.P., and Dr. Someit Sidhu is a limited partner of JATT Ventures II L.P.. Dr. Someit Sidhu is also the sole member of JATT Ventures II Ltd. Dr. Someit Sidhu has voting and investment discretion with respect to the ordinary shares held of record by JATT Ventures II L.P. Dr. Someit Sidhu disclaims any beneficial ownership of the securities held by JATT Ventures II L.P. other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Key Figures

Private placement purchase: 300,000 ordinary shares Indirect holdings after transaction: 2,025,000 ordinary shares Shares subject to forfeiture: Up to 225,000 ordinary shares +1 more

4 metrics

Private placement purchase 300,000 ordinary shares Purchased by JATT Ventures II L.P. under April 16, 2026 agreement

Indirect holdings after transaction 2,025,000 ordinary shares Reported indirect ownership following April 20, 2026 transaction

Shares subject to forfeiture Up to 225,000 ordinary shares Potential forfeiture tied to IPO underwriter over-allotment option

Net buy shares 300,000 shares Net-buy direction from transaction summary

Key Terms

private placement shares, underwriter' over-allotment option, beneficial ownership, pecuniary interest

4 terms

private placement shares financial

"Reflects the 300,000 private placement shares purchased by JATT Ventures II L.P."

underwriter' over-allotment option financial

"subject to forfeiture depending on the extent to which the Issuer's underwriter' over-allotment option was exercised"

beneficial ownership financial

"Dr. Someit Sidhu disclaims any beneficial ownership of the securities held by JATT Ventures II L.P."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"other than to the extent of any pecuniary interest he may have therein, directly or indirectly"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sidhu Someit

(Last) (First) (Middle)

153 CENTRAL AVENUE C/O 56

(Street)

WESTFIELD NEW JERSEY 07091

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
JATT II Acquisition Corp. [ JATT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary shares	04/20/2026		P(1)		300,000	A	(1)	2,025,000(2)	I	See Footnote(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects the 300,000 private placement shares purchased by JATT Ventures II L.P., the Issuer's sponsor, pursuant to the Private Placement Shares Purchase Agreement dated April 16, 2026 entered into with the Issuer.

2. Including up to 225,000 Ordinary Shares subject to forfeiture depending on the extent to which the Issuer's underwriter' over-allotment option was exercised during the Issuer's initial public offering. JATT Ventures II L.P. is the record holder of the securities reported herein. JATT Ventures II Ltd is the sole general partner of JATT Ventures II L.P., and Dr. Someit Sidhu is a limited partner of JATT Ventures II L.P.. Dr. Someit Sidhu is also the sole member of JATT Ventures II Ltd. Dr. Someit Sidhu has voting and investment discretion with respect to the ordinary shares held of record by JATT Ventures II L.P. Dr. Someit Sidhu disclaims any beneficial ownership of the securities held by JATT Ventures II L.P. other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

	/s/ Someit Sidhu	04/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did JATT (JATT) report in this Form 4?

JATT reported that sponsor entity JATT Ventures II L.P. acquired 300,000 private placement ordinary shares. The transaction is attributed to CEO Dr. Someit Sidhu as an indirect holding, increasing his reported indirect ownership to 2,025,000 ordinary shares through the sponsor structure.

How many JATT ordinary shares does Dr. Someit Sidhu hold after this transaction?

After the transaction, Dr. Someit Sidhu is reported as indirectly owning 2,025,000 ordinary shares. These shares are held of record by JATT Ventures II L.P., the sponsor, with Dr. Sidhu exercising voting and investment discretion while disclaiming beneficial ownership beyond his pecuniary interest.

Who actually purchased the 300,000 JATT private placement shares?

The 300,000 private placement ordinary shares were purchased by JATT Ventures II L.P., JATT II Acquisition Corp.’s sponsor. Dr. Someit Sidhu is a limited partner in this sponsor and controls its general partner, so the holdings are reported as indirect, subject to his beneficial ownership disclaimer.

What does the forfeiture provision on 225,000 JATT shares mean?

The filing notes that up to 225,000 ordinary shares are subject to forfeiture. This depends on how much of the underwriter’s over-allotment option from JATT’s initial public offering was exercised, meaning part of the sponsor’s shares could be cancelled if certain IPO-related conditions applied.

Does Dr. Someit Sidhu fully own all the JATT shares reported in this Form 4?

No. The shares are held by JATT Ventures II L.P., the sponsor. Dr. Sidhu has voting and investment discretion over those shares, but he formally disclaims beneficial ownership of the securities other than the extent of any pecuniary interest he may hold directly or indirectly.