# EDGAR Filing Document

**Accession Number:** 0002091404
**File Stem:** 0002091404-26-000003
**Filing Date:** 2026-3
**Character Count:** 8889
**Document Hash:** a75c02442e4eba1b899e312c254eb251
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002091404-26-000003.hdr.sgml**: 20260312

**ACCESSION NUMBER**: 0002091404-26-000003

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260310

**FILED AS OF DATE**: 20260312

**DATE AS OF CHANGE**: 20260312

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Mawson Simon
- **CENTRAL INDEX KEY:** 0002091404

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42812
- **FILM NUMBER:** 26748250

**MAIL ADDRESS:**
- **STREET 1:** 115 TABOR ROAD
- **CITY:** MORRIS PLAINS
- **STATE:** NJ
- **ZIP:** 07950
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Solstice Advanced Materials Inc.
- **CENTRAL INDEX KEY:** 0002064953
- **STANDARD INDUSTRIAL CLASSIFICATION:** CHEMICALS & ALLIED PRODUCTS [2800]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 332919563
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 115 TABOR ROAD
- **CITY:** MORRIS PLAINS
- **STATE:** NJ
- **ZIP:** 07950
- **BUSINESS PHONE:** 704-627-6200

**MAIL ADDRESS:**
- **STREET 1:** 115 TABOR ROAD
- **CITY:** MORRIS PLAINS
- **STATE:** NJ
- **ZIP:** 07950

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Solstice Advanced Materials, LLC
- **DATE OF NAME CHANGE:** 20250417

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Mawson Simon<br><sub>(Last) (First) (Middle)</sub><br>C/O SOLSTICE ADVANCED MATERIALS INC.<br>115 TABOR ROAD<br><sub>(Street)</sub><br>MORRIS PLAINS, NJ 07950<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-10 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_SVP, Elec & Spec Materials_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Solstice Advanced Materials Inc. [ SOLS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock |  |  |  |  |  |  |  | 1257 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 20 |  | <sup>(3)</sup> | <sup>(3)</sup> | Common Stock | 20 | $0 | 19744 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 2 |  | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 2 | $0 | 2038 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 5 |  | <sup>(5)</sup> | <sup>(5)</sup> | Common Stock | 5 | $0 | 4760 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 2 |  | <sup>(6)</sup> | <sup>(6)</sup> | Common Stock | 2 | $0 | 1941 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 7 |  | <sup>(7)</sup> | <sup>(7)</sup> | Common Stock | 7 | $0 | 6786 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 7 |  | <sup>(8)</sup> | <sup>(8)</sup> | Common Stock | 7 | $0 | 6891 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-10 |  | A<sup>(2)</sup> |  | 6 |  | <sup>(9)</sup> | <sup>(9)</sup> | Common Stock | 6 | $0 | 6054 | D |  |
| Stock Option (Right to buy) | $43.65 |  |  |  |  |  |  | <sup>(10)</sup> | 2032-06-12 | Common Stock | 2507 |  | 2507 | D |  |
| Stock Option (Right to buy) | $46.03 |  |  |  |  |  |  | <sup>(11)</sup> | 2033-02-22 | Common Stock | 4833 |  | 4833 | D |  |
| Stock Option (Right to buy) | $46.79 |  |  |  |  |  |  | <sup>(12)</sup> | 2034-02-28 | Common Stock | 7691 |  | 7691 | D |  |
| Stock Option (Right to buy) | $50.59 |  |  |  |  |  |  | <sup>(13)</sup> | 2035-03-02 | Common Stock | 9312 |  | 9312 | D |  |

---

### Footnotes:

(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 in equal installments on each of October 30, 2028 and October 30, 2029, subject to continued employment.

(4) The RSUs will vest on March 1, 2027, subject to continued employment.

(5) The RSUs will vest 2,342 on August 1, 2026 and 2,413 on August 1, 2027 (in each case, not including dividend equivalent rights), subject to continued employment.

(6) The RSUs will vest on March 3, 2028, subject to continued employment

(7) The RSUs will vest 2,237 on March 3, 2027, 2,237 on March 3, 2028 and 2,305 on March 3, 2029 (in each case, not including dividend equivalent rights), subject to continued employment.

(8) The RSUs will vest in equal installments on each of March 17, 2027 and March 17, 2028, subject to continued employment.

(9) 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.

(10) Options vest and become exercisable on June 13, 2026.

(11) Options vest and become exercisable in equal installments on each of February 23, 2026 and February 23, 2027.

(12) Options vest and become exercisable in three equal installments on each of March 1, 2026, March 1, 2027 and March 1, 2028.

(13) Options vest and become exercisable in four equal installments on each of March 3, 2026, March 3, 2027, March 3, 2028 and March 3, 2029.

**Signature:** /s/ Jay Shah for Simon Mawson  
**Date:** 2026-03-12

### Remarks:

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.**