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 *

Lasky Mark		 2. Issuer Name and Ticker or Trading Symbol

GREENHILL & CO INC [ GHL ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chief Financial Officer
(Last)          (First)          (Middle)

C/O GREENHILL & CO., INC., 1271 AVENUE OF THE AMERICAS, 21ST FLOOR		 3. Date of Earliest Transaction (MM/DD/YYYY)

5/8/2023
(Street)

NEW YORK, NY 10020		 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
(City)        (State)        (Zip)
Rule 10b5-1(c) Transaction Indication
☐ Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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 5/8/2023  M  1267 A$6.96 5052 D  
Common Stock 5/8/2023  F  511 D$6.96 4541 D  
Common Stock 5/8/2023  M  853 A$6.96 5394 D  
Common Stock 5/8/2023  F  344 D$6.96 5050 D  
Common Stock 5/8/2023  M  969 A$6.96 6019 D  
Common Stock 5/8/2023  F  391 D$6.96 5628 D  

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 Security3. Trans. Date3A. Deemed Execution Date, if any4. 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 Date7. 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units  (1)5/8/2023  M     1267   (1) (1)Common Stock 1267  (1)1267 D  
Restricted Stock Units  (2)5/8/2023  M     853   (2) (2)Common Stock 853  (2)1707 D  
Restricted Stock Units  (3)5/8/2023  M     969   (3) (3)Common Stock 969  (3)2909 D  
Explanation of Responses:
(1) This restricted stock unit award was granted on June 30, 2020 under the Greenhill & Co., Inc. 2019 Equity Incentive Plan. The units comprising the award vest in equal increments on each of the first, second, third and fourth anniversaries of the date of grant (each, a vesting date) and are subject to payment within 75 days following each such vesting date. Each unit represents a right to receive one share of Common Stock or an amount equal to the market value of the Common Stock underlying the vested award on the applicable vesting date. Payment may be made in cash, shares of Common Stock or a combination thereof. On May 8, 2023, the third vesting of this award was settled in shares. Shares were withheld to satisfy applicable tax withholding obligations.
(2) This restricted stock unit award was granted on March 31, 2021 under the Greenhill & Co., Inc. 2019 Equity Incentive Plan. The units comprising the award vest in equal increments on each of the first, second, third and fourth anniversaries of the date of grant (each, a vesting date) and are subject to payment within 75 days following each such vesting date. Each unit represents a right to receive one share of Common Stock or an amount equal to the market value of the Common Stock underlying the vested award on the applicable vesting date. Payment may be made in cash, shares of Common Stock or a combination thereof. On May 8, 2023, the second vesting of this award was settled in shares. Shares were withheld to satisfy applicable tax withholding obligations.
(3) This restricted stock unit award was granted on March 31, 2022 under the Greenhill & Co., Inc. 2019 Equity Incentive Plan. The units comprising the award vest in equal increments on each of the first, second, third and fourth anniversaries of the date of grant (each, a vesting date) and are subject to payment within 75 days following each such vesting date. Each unit represents a right to receive one share of Common Stock or an amount equal to the market value of the Common Stock underlying the vested award on the applicable vesting date. Payment may be made in cash, shares of Common Stock or a combination thereof. On May 8, 2023, the first vesting of this award was settled in shares. Shares were withheld to satisfy applicable tax withholding obligations.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Lasky Mark
C/O GREENHILL & CO., INC.
1271 AVENUE OF THE AMERICAS, 21ST FLOOR
NEW YORK, NY 10020

Chief Financial Officer
Signatures
/s/ Mark R. Lasky6/5/2023
**Signature of Reporting PersonDate
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).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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