Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * TAILWIND 2.0 SPONSOR LLC 2. Issuer Name and Ticker or Trading Symbol Tailwind 2.0 Acquisition Corp. [TDWDU] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O TAILWIND 2.0 ACQUISITION CORP., 15 E. PUTNAM AVENUE #291 3. Date of Earliest Transaction (Month/Day/Year) 11/10/2025 (Street) GREENWICH, CT 06830 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) 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 Class A Ordinary Shares 11/10/2025 P 372,500 A (1) 372,500(2) D

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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
TAILWIND 2.0 SPONSOR LLC C/O TAILWIND 2.0 ACQUISITION CORP. 15 E. PUTNAM AVENUE #291 GREENWICH, CT 06830		X
Krim Philip C/O TAILWIND 2.0 ACQUISITION CORP. 15 E. PUTNAM AVENUE #291 GREENWICH, CT 06830	X	X

Signatures

/s/ Tricia Branker, Attorney-in-Fact		11/10/2025
**Signature of Reporting Person		Date
/s/ Tricia Branker, Attorney-in-Fact		11/10/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Simultaneously with the consummation of the Issuer's initial public offering, Tailwind 2.0 Sponsor LLC (the "Sponsor") acquired, at a price of $10.00 per unit, 372,500 units (the "Private Placement Units") in a private placement for an aggregate purchase price of $3,725,000. Each Private Placement Unit consists of one Class A ordinary share and one right entitling the holder thereof to receive one-tenth of one Class A ordinary share upon the completion of an initial business combination. The reported shares are the 372,500 Class A ordinary shares included in such Private Placement Units.
(2)	The Sponsor is the record holder of the shares reported herein. Philip Krim is the managing member of the Sponsor and holds voting and investment discretion with respect to the shares held of record the Sponsor. Mr. Krim disclaims any beneficial ownership of the securities held by the sponsor other than to the extent of any pecuniary interest he may have therein.

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