Sec Form 4 Filing - Morgan Howard D. @ Concrete Pumping Holdings, Inc. - 2019-04-29

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 Morgan Howard D. 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 X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O INDUSTREA ACQUISITION CORP., 28 WEST 44TH STREET, SUITE 501 3. Date of Earliest Transaction (MM/DD/YY) 04/29/2019 (Street) NEW YORK, NY10036 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 04/29/2019 A( 1 ) 1,664,500 A 6,067,825 I See Footnotes ( 1 ) ( 2 )

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 Warrants ( 3 ) 04/29/2019 D( 1 ) 10,822,500 ( 3 ) ( 3 ) Common Stock 10,822,500 $ 0 0 I See footnotes ( 1 ) ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Morgan Howard D. C/O INDUSTREA ACQUISITION CORP. 28 WEST 44TH STREET, SUITE 501 NEW YORK, NY10036 X X Signatures /s/ Joel Rubinstein, Attorney-in-Fact 05/01/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )CFLL Sponsor Holdings LLC (f/k/a Industrea Alexandria LLC) ("CFLL Sponsor") disposed of warrants to purchase 10,822,500 shares of common stock, par value $0.0001 per share, of the Issuer ("common stock") in exchange for 1,664,500 shares of common stock in an Issuer exchange offer. ( 2 )6,067,825 of such shares are held by CFLL Sponsor and 7,784,313 of such shares are held by CFLL Holdings, LLC ("CFLL Holdings"). Howard D. Morgan, Heather L. Faust, Tariq Osman, Joseph Del Toro and Charles Burns are the managers of the CFLL Sponsor and CFLL Holdings, share voting and investment discretion with respect to the common stock held by CFLL Sponsor, and each has individual voting and investment discretion with respect to the common stock held by CFLL Holdings. ( 3 )The warrants became exercisable on January 5, 2019 and had an expiration date of December 6, 2023. Each warrant was exercisable for one share of the Issuer's common stock at $11.50 per share.

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).

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