Sec Form 4 Filing - George Matthew Spencer @ Merlin, Inc. - 2026-03-16

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person George Matthew Spencer 2. Issuer Name and Ticker or Trading Symbol Merlin, Inc. [ MRLN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) C/O MERLIN, INC., 129 SOUTH STREET 3. Date of Earliest Transaction (MM/DD/YY) 03/16/2026 (Street) BOSTON, MA02111 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Common Stock 03/16/2026 A( 1 ) 14,890,622 A 14,890,622 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Stock Option $ 8.48 03/16/2026 A( 1 ) 1,512,485 ( 2 ) 02/03/2036 Common Stock 1,512,485 ( 1 ) 1,512,485 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other George Matthew Spencer C/O MERLIN, INC. 129 SOUTH STREET BOSTON, MA02111 X Chief Executive Officer Signatures /s/ Leslie Renee Ravestein, Attorney-in-Fact 03/18/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents securities received as part of the Issuer's business combination, in connection with the Business Combination Agreement, dated as of August 13, 2025, by and among the Issuer (formerly known as Inflection Point Acquisition Corp. IV), IPDX Merger Sub, Inc., a direct wholly owned subsidiary of the Issuer, and Merlin Labs, Inc. ("Legacy Merlin"), pursuant to which the common stock of Legacy Merlin automatically converted into newly issued shares of Common Stock. In addition, each Legacy Merlin stock option was automatically converted into the right to receive stock options of the Issuer with the same terms and conditions. ( 2 )The stock option will vest in full on February 4, 2027.

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).

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