Sec Form 4 Filing - Humphries Iain @ Concrete Pumping Holdings, Inc. - 2025-01-15

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 Humphries Iain 2. Issuer Name and Ticker or Trading Symbol Concrete Pumping Holdings, Inc. [ BBCP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CFO and Secretary (Last) (First) (Middle) C/O CONCRETE PUMPING HOLDINGS, INC., 500 E. 84TH AVENUE, SUITE A-5 3. Date of Earliest Transaction (MM/DD/YY) 01/15/2025 (Street) DENVER, CO80229 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 01/15/2025 A 15,330 ( 1 ) A $ 0 382,822 D Common Stock 01/15/2025 A 10,226 ( 2 ) A $ 0 393,048 D Common Stock 01/15/2025 F 5,981 ( 3 ) D $ 8.87 387,067 D Common Stock 01/17/2025 M 249,287 ( 4 ) A $ 6.09 636,354 D Common Stock 01/17/2025 F 200,920 ( 4 ) D $ 8.79 435,434 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 Option $ 6.09 01/17/2025 M( 4 ) 249,287 12/06/2018 03/07/2026 Common Stock 249,287 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Humphries Iain C/O CONCRETE PUMPING HOLDINGS, INC. 500 E. 84TH AVENUE, SUITE A-5 DENVER, CO80229 X CFO and Secretary Signatures /s/ Iain Humpries 01/17/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents performance-based restricted stock units granted to the filing person. The restricted stock units were initially granted on January 22, 2024 and the amount of restricted stock units eligible for vesting was subject to certification of the satisfaction of certain performance conditions for the 2024 fiscal year by the Compensation Committee of the Board of Directors. On January 15, 2025, the Compensation Committee of the Board of Directors certified the achievement of the performance conditions for the restricted stock units, which vest in three equal increments on January 15, 2025, January 15, 2026 and January 15, 2027, subject to the filing person's continued employment through the vesting date. ( 2 )Represents performance-based restricted stock units granted to the filing person. The restricted stock units were initially granted on April 12, 2024 and the amount of restricted stock units eligible for vesting was subject to certification of the satisfaction of certain performance conditions for the 2024 fiscal year by the Compensation Committee of the Board of Directors. On January 15, 2025, the Compensation Committee of the Board of Directors certified the achievement of the performance conditions for the restricted stock units, which vest in three equal increments on January 15, 2025, January 15, 2026 and January 15, 2027, subject to the filing person's continued employment through the vesting date. ( 3 )The Company withheld shares of common stock to satisfy the tax withholding obligations for the Reporting Person's performance-based and time-based restricted stock units that vested on January 15, 2025. ( 4 )The Reporting Person exercised 249,287 options and the Company withheld 200,920 of the underlying shares to satisfy the tax withholding and exercise price obligations.

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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