# EDGAR Filing Document

**Accession Number:** 0002073180
**File Stem:** 0000892553-25-000097
**Filing Date:** 2025-6
**Character Count:** 5795
**Document Hash:** c49f53ed1b118b0e2b37abf1abc1bcb3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000892553-25-000097.hdr.sgml**: 20250613

**ACCESSION NUMBER**: 0000892553-25-000097

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20250531

**FILED AS OF DATE**: 20250613

**DATE AS OF CHANGE**: 20250613

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Durham Mark
- **CENTRAL INDEX KEY:** 0002073180

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-11442
- **FILM NUMBER:** 251047348

**MAIL ADDRESS:**
- **STREET 1:** 2200 AIRPORT INDUSTRIAL DRIVE, SUITE 100
- **CITY:** BALL GROUND
- **STATE:** GA
- **ZIP:** 30107
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CHART INDUSTRIES INC
- **CENTRAL INDEX KEY:** 0000892553
- **STANDARD INDUSTRIAL CLASSIFICATION:** FABRICATED PLATE WORK (BOILER SHOPS) [3443]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 341712937
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 2200 AIRPORT INDUSTRIAL DRIVE
- **STREET 2:** SUITE # 100
- **CITY:** BALL GROUND
- **STATE:** GA
- **ZIP:** 30107
- **BUSINESS PHONE:** 770-721-8800

**MAIL ADDRESS:**
- **STREET 1:** 2200 AIRPORT INDUSTRIAL DRIVE
- **STREET 2:** SUITE # 100
- **CITY:** BALL GROUND
- **STATE:** GA
- **ZIP:** 30107

## Exhibit 24.1

![](mdurhampoa001.jpg)

------

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Durham Mark<br><sub>(Last) (First) (Middle)</sub><br>2200 AIRPORT INDUSTRIAL DRIVE, SUITE 100<br><sub>(Street)</sub><br>BALL GROUND, GA 30107<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>CHART INDUSTRIES INC [ GTLS ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-05-31 | **4. 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>_Chief Accounting Officer_ | **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 Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common stock, par value $0.01 per share | 1330<sup>(1)</sup> | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to Buy) | <sup>(2)</sup> | 2034-01-02 | Common Stock | 560 | $135.22 | D |  |
| Stock Option (Right to Buy) | <sup>(3)</sup> | 2035-01-02 | Common Stock | 400 | $189.88 | D |  |

---

### Footnotes:

(1) Total includes 160 unvested restricted stock units ("RSUs") granted on January 2, 2025 pursuant to the Chart Industries, Inc. 2024 Omnibus Equity Plan (the "2024 Plan"), 154 unvested RSUs granted on January 2, 2024 and 467 unvested RSUs granted on November 10, 2023, pursuant to the Chart Industries, Inc. 2017 Omnibus Equity Plan (the "2017 Plan") in exempt transactions under Rule 16b-3. Shares of common stock will be issued with respect to one-third (1/3) of the total number of shares on each of the three anniversaries of the date of grant, subject to tax withholding requirements.

(2) These options were granted on January 2, 2024 pursuant to the 2017 Plan in an exempt transaction under Rule 16b-3. These options vest with respect to one-fourth (1/4) of the total number of shares of common stock underlying the stock options on each of the first four anniversaries of the date of grant.

(3) These options were granted on January 2, 2025 pursuant to the 2024 Plan in an exempt transaction under Rule 16b-3. These options vest with respect to one-fourth (1/4) of the total number of shares of common stock underlying the stock options on each of the first four anniversaries of the date of grant.

**Remarks:**
Exhibit 24.1 - Power of Attorney

**Signature:** /s/ Mark Durham, by Gregory J. Dziak, his attorney-in-fact  
**Date:** 2025-06-13

### 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.**