Sec Form 4 Filing - Clifford Jason Michael @ Solstice Advanced Materials Inc. - 2026-03-10

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 Clifford Jason Michael 2. Issuer Name and Ticker or Trading Symbol Solstice Advanced Materials Inc. [ SOLS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP and Chief HR Officer (Last) (First) (Middle) C/O SOLSTICE ADVANCED MATERIALS INC., 115 TABOR ROAD 3. Date of Earliest Transaction (MM/DD/YY) 03/10/2026 (Street) MORRIS PLAINS, NJ07950 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 1,645 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 Restricted Stock Units ( 1 ) 03/10/2026 A( 2 ) 5 ( 3 ) ( 3 ) Common Stock 5 $ 0 4,630 D Restricted Stock Units ( 1 ) 03/10/2026 A( 2 ) 15 ( 4 ) ( 4 ) Common Stock 15 $ 0 14,808 D Restricted Stock Units ( 1 ) 03/10/2026 A( 2 ) 29 ( 5 ) ( 5 ) Common Stock 29 $ 0 29,003 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Clifford Jason Michael C/O SOLSTICE ADVANCED MATERIALS INC. 115 TABOR ROAD MORRIS PLAINS, NJ07950 SVP and Chief HR Officer Signatures /s/ Jay Shah for Jason M. Clifford 03/12/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each restricted stock unit ("RSU") represents a contingent right to receive one share of Solstice Advanced Materials Inc. (the "Issuer") common stock. ( 2 )Represents dividend equivalent rights in connection with the Issuer's dividend that accrue to the reporting person in RSUs that vest at the same times as the underlying RSUs. ( 3 )The RSUs will vest 33% on each of February 24, 2027 and February 24, 2028, and 34% on February 24, 2029, subject to continued employment. ( 4 )The RSUs will vest in equal installments on each of October 30, 2028 and October 30, 2029, subject to continued employment. ( 5 )The RSUs will vest 11,590 on June 2, 2026, 11,589 on June 2, 2027 and 5,795 on June 2, 2028 (in each case, not including dividend equivalent rights), subject to continued employment.

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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