Sec Form 4 Filing - XPDI Sponsor II LLC @ Montana Technologies Corp. - 2024-03-14

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 XPDI Sponsor II LLC 2. Issuer Name and Ticker or Trading Symbol Montana Technologies Corp. [ AIRJ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 321 NORTH CLARK STREET, SUITE 2440 3. Date of Earliest Transaction (MM/DD/YY) 03/14/2024 (Street) CHICAGO, IL60654 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 Class A common stock ( 1 ) 03/14/2024 M( 2 ) 6,827,969 A 6,827,969 D ( 3 )

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 Class B common stock ( 4 ) 03/14/2024 J( 5 ) 269,531 ( 4 ) ( 4 ) Class A common stock 269,531 ( 5 ) 6,827,969 D ( 3 ) Class B common stock ( 4 ) 03/14/2024 M( 2 ) 6,827,969 ( 4 ) ( 4 ) Class A common stock 0 ( 4 ) 0 D ( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other XPDI Sponsor II LLC 321 NORTH CLARK STREET, SUITE 2440 CHICAGO, IL60654 X Transition Equity Partners, LLC 58 INDIAN HILL RD WINNETKA, IL60093 Managing Member XMS XPDI Sponsor II Holdings LLC 321 NORTH CLARK STREET, SUITE 2440 CHICAGO, IL60654 Managing Member Signatures /s/ See signatures included in Exhibit 99.1 03/18/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )In connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated June 5, 2024, by and among Power & Digital Infrastructure Acquisition II Corp. ("XPDB"), XPDB Merger Sub, LLC, and Montana Technologies LLC ("Legacy Montana") (the transactions contemplated thereby, the "Business Combination"), XPDB changed its name to Montana Technologies Corporation ("Montana"). ( 2 )Reflects the conversion of 6,827,969 shares of Class B common stock, par value $0.0001 per share, of XPDB into 6,827,969 shares of common stock of Montana, par value $0.0001 per share, on a one-for-one basis pursuant to the closing of the Business Combination. ( 3 )This Form 4 is being filed by XPDI Sponsor II LLC (the "Sponsor"). The Sponsor is controlled by its managing members, Transition Equity Partners, LLC ("TEP") and XMS XPDI Sponsor II Holdings, LLC ("XPDI Holdings"). Patrick C. Eilers and Theodore J. Brombach are the managing members of TEP and XPDI Holdings, respectively. Accordingly, all of the shares held by the Sponsor may be deemed to be beneficially held by Messrs. Brombach and Eilers. Each such person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein and the filing of this Form 4 shall not be construed as an admission that any such reporting person is the beneficial owner of any Class B ordinary shares covered by this Form 4. ( 4 )As described in XPDB's registration statement on Form S-1 (File No. 333-261187) under the heading "Description of Securities--Founder Shares", the shares of Class B common stock, par value $0.0001 per share, automatically convert into shares of Montana Class A common stock, par value $0.0001 per share, at the time of the Business Combination, on a one-for-one basis, subject to adjustment for stock splits, stock dividends, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date. ( 5 )On March 14, 2024, the Reporting Person forfeited for no consideration 269,531 shares of Class B common stock in connection with the Business Combination and certain transactions with the Anchor Investors, as described on Form S-4 (File No. 333-273821) under the heading "The Business Combination."

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* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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