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 OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * Ajdler Arnaud 2. Issuer Name and Ticker or Trading Symbol Hill International, Inc. [ HIL ] 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)
C/O HILL INTERNATIONAL, INC., 2005 MARKET STREET, 17TH FLOOR
3. Date of Earliest Transaction (MM/DD/YYYY)
10/8/2021
(Street)
PHILADELPHIA, PA 19103
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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  10/8/2021    A    5630 (1) A $0.00  179987 (2) D   
Common Stock                 5555526 (3) I  By Engine Capital, L.P. 

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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

Explanation of Responses:
(1)  Grant of deferred stock units (DSUs) for payment of part of annual retainer for service on the Issuer's Board of Directors. Each DSU entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.
(2)  Comprised of shares of common stock to be issued upon settlement of DSUs.
(3)  The Reporting Person is the managing member of Engine Capital Management, L.P. ("Engine Management"), Engine Investments, LLC ("Engine Investments") and Engine Investments II, LLC ("Engine Investments II"). Engine Management is the investment manager of each of Engine Airflow Capital, L.P. ("Engine Airflow"), Engine Capital, L.P. ("Engine Capital"), and Engine Jet Capital, L.P. ("Engine Jet"). Engine Investments is the general partner of each of Engine Capital and Engine Jet, and Engine Investments II is the general partner of Engine Airflow. Following the transaction, Engine Airflow owns 465,064 shares, Engine Capital owns 2,779,054 shares and Engine Jet owns 2,201,138 shares of the Issuer's common stock. The Reporting Person disclaims beneficial ownership in such securities except to the extent of his pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Ajdler Arnaud
C/O HILL INTERNATIONAL, INC.
2005 MARKET STREET, 17TH FLOOR
PHILADELPHIA, PA 19103
X



Signatures
William H. Dengler, Attorney-in-Fact 11/18/2021
**Signature of Reporting Person Date
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