# EDGAR Filing Document

**Accession Number:** 0000007332
**File Stem:** 0001127602-23-007080
**Filing Date:** 2023-2
**Character Count:** 7538
**Document Hash:** 8c2f1be908901c8fe13028f56967ebf6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001127602-23-007080.hdr.sgml**: 20230224

**ACCESSION NUMBER**: 0001127602-23-007080

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230222

**FILED AS OF DATE**: 20230224

**DATE AS OF CHANGE**: 20230224

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Gillenwater Carina L
- **CENTRAL INDEX KEY:** 0001848194

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-08246
- **FILM NUMBER:** 23668168

**MAIL ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **STREET 2:** P. O. BOX 12359
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77391-2359
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHWESTERN ENERGY CO
- **CENTRAL INDEX KEY:** 0000007332
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **IRS NUMBER:** 710205415
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77389
- **BUSINESS PHONE:** 832-796-4700

**MAIL ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77389

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ARKANSAS WESTERN GAS CO
- **DATE OF NAME CHANGE:** 19790917

### 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>Gillenwater Carina L<br><sub>(Last) (First) (Middle)</sub><br>10000 ENERGY DRIVE<br>P. O. BOX 12359<br><sub>(Street)</sub><br>SPRING, TX 77391-2359<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-22 | **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>_VP, Human Resources and Admin_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>SOUTHWESTERN ENERGY CO [ SWN ] | **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 | 2023-02-22 |  | M<sup>(1)</sup> |  | 14170 | A | $0 | 90048 | D |  |
| Common Stock | 2023-02-22 |  | F<sup>(2)</sup> |  | 4202 | D | $5.04 | 85846 | D |  |
| Common Stock | 2023-02-23 |  | M<sup>(1)</sup> |  | 14843 | A | $0 | 100689 | D |  |
| Common Stock | 2023-02-23 |  | F<sup>(2)</sup> |  | 3866 | D | $5.14 | 96823 | 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 Unit | <sup>(3)</sup> | 2023-02-22 |  | M |  |  | 14170 | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 14170 | $0 | 28340 | D |  |
| Restricted Stock Unit | <sup>(3)</sup> | 2023-02-23 |  | M |  |  | 14843 | <sup>(5)</sup> | <sup>(5)</sup> | Common Stock | 14843 | $0 | 14844 | D |  |

---

### Footnotes:

(1) Each Restricted Stock Unit ("RSU") has the economic equivalent of one share of Southwestern Energy Company ("SWN") common stock. The RSUs vesting on February 22, 2023 and February 23, 2023 were settled in common stock based on the closing price of SWN common stock on the vesting date.

(2) Represents net share settlement of common stock award to satisfy withholding taxes.

(3) Each restricted stock unit represents a contingent right to receive one share of SWN common stock or an amount in cash equal to the Fair Market Value of one share of SWN common stock.

(4) On February 22, 2022, the reporting person was granted restricted stock units, vesting in three equal installments beginning on the first anniversary of the grant date, or immediately upon death, disability, retirement at age 65 with required years of service, or a change in control. Vesting units will be settled in shares of SWN common stock, cash, or a combination of shares of SWN common stock and cash.

(5) On February 23, 2021, the reporting person was granted restricted stock units, vesting in three equal installments beginning on the first anniversary of the grant date, or immediately upon death, disability, retirement at age 65 with required years of service, or a change in control. Vesting units will be settled in shares of SWN common stock, cash, or a combination of shares of SWN common stock and cash.

**Signature:** /s/ Melissa D. McCarty, attorney-in-fact for Ms. Gillenwater  
**Date:** 2023-02-24

### 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.**