Sec Form 3 Filing - Bostrom Brian Patrick @ CHART INDUSTRIES INC - 2023-01-09

FORM 3 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 Bostrom Brian Patrick 2. Issuer Name and Ticker or Trading Symbol CHART INDUSTRIES INC [ GTLS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Technology Officer (Last) (First) (Middle) C/O CHART INDUSTRIES, INC., 2200 AIRPORT INDUSTRIAL DRIVE, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 01/09/2023 (Street) BALL GROUND, GA30107 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, par value $0.01 per share 7,620( 1 ) 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 (Right to Buy) $ 153.81 ( 2 ) 01/03/2032 Common Stock 600 D Stock Option (Right to Buy) $ 114.93 ( 3 ) 01/03/2033 Common Stock 600 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Bostrom Brian Patrick C/O CHART INDUSTRIES, INC. 2200 AIRPORT INDUSTRIAL DRIVE, SUITE 100 BALL GROUND, GA30107 Chief Technology Officer Signatures /s/ Brian P. Bostrom, by John F. Griffee IV, his attorney-in-fact 01/17/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Total includes 247 restricted stock units ("RSUs") granted on January 4, 2021, 141 RSUs granted on January 3, 2022, 600 RSUs granted on May 13, 2022, 3,800 RSUs granted on December 16, 2022, and 340 RSUs granted on January 3, 2023, pursuant to the Chart Industries, Inc. 2017 Omnibus Equity 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, except with regard to the RSUs granted on December 16, 2022, which vest in full on December 16, 2025 (the third anniversary of the date of grant). ( 2 )These options were granted on January 3, 2022 pursuant to the Chart Industries, Inc. 2017 Omnibus Equity 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 3, 2023 pursuant to the Chart Industries, Inc. 2017 Omnibus Equity 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 List: Exhibit 24.1 -- Power of Attorney

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