Sec Form 3 Filing - Hofmeister Edith @ Keel Infrastructure Corp. - 2026-04-01

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 Hofmeister Edith 2. Issuer Name and Ticker or Trading Symbol Keel Infrastructure Corp. [ KEEL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 120 BROADWAY, SUITE 1075 3. Date of Earliest Transaction (MM/DD/YY) 04/01/2026 (Street) NEW YORK, NY10004 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 Shares 240,001 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 Options (Right to Buy) $ 0.72 ( 2 ) ( 1 ) 11/16/2027 Common Shares 120,000 D Stock Options (Right to Buy) $ 2.75 ( 2 ) ( 3 ) 12/22/2028 Common Shares 100,000 D Stock Options (Right to Buy) $ 1.87 ( 2 ) ( 4 ) 12/18/2029 Common Shares 60,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hofmeister Edith 120 BROADWAY SUITE 1075 NEW YORK, NY10004 X Signatures /s/ Rachel Silverstein, as attorney-in-fact 04/01/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On November 16, 2022, the reporting person was granted 120,000 stock options which have fully vested. ( 2 )The price was converted into its U.S. Dollar equivalent using the Bank of Canada daily exchange rate on March 30, 2026 (at CAD 1.00 = USD 0.718). ( 3 )On December 22, 2023, the reporting person was granted 100,000 stock options which have fully vested. ( 4 )On December 18, 2024, the reporting person was granted 60,000 stock options which vest in 4 equal installments on December 18, 2024, June 18, 2025, December 18, 2025, and June 18, 2026.

Remarks: Exhibit List - Exhibit 24.1 Power of Attorney

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).

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