Ownership Submission
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

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
BLAKE CHRISTOPHER D
  2. Issuer Name and Ticker or Trading Symbol
PACWEST BANCORP [PACW]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Pres. & CEO, Community Banking
(Last)
(First)
(Middle)
9701 WILSHIRE BOULEVARD,, SUITE 700
3. Date of Earliest Transaction (Month/Day/Year)
02/10/2019
(Street)

BEVERLY HILLS, CA 90212
4. If Amendment, Date Original Filed(Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 02/10/2019   F   824 (1) D $ 39.42 (2) 39,600 D  
Common Stock 02/10/2019   F   3,285 (3) D $ 39.42 (2) 36,315 D  
Common Stock               26,073 I By Family Trust
Common Stock               281 I By IRA
Common Stock               222 I By Spouse's IRA

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BLAKE CHRISTOPHER D
9701 WILSHIRE BOULEVARD,
SUITE 700
BEVERLY HILLS, CA 90212
      Pres. & CEO, Community Banking  

Signatures

 /s/ Christopher Blake   02/12/2019
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Represents the number of shares of Issuer's common stock that Reporting Person surrendered to Issuer for the satisfaction of Reporting Person's tax withholding obligations upon the vesting of 2,362 shares of restricted stock on February 10, 2019.
(2) Reflects market closing price on February 8, 2019.
(3) On February 10, 2016, Reporting Person was granted performance restricted stock units ("PRSUs"). Vesting of the PRSUs was conditioned upon the achievement of certain performance goals and an employment condition. On February 6, 2019, actual performance against goals for the applicable performance period was determined and the Reporting Person was awarded 9,493 shares of Issuer's common stock to vest on February 10, 2019 subject to the Reporting Person's satisfaction of the employment condition. The amount reported in column 4 represents the number of shares of Issuer's common stock that Reporting Person surrendered to Issuer for the satisfaction of Reporting Person's tax withholding obligations upon the vesting of the 9,493 shares of Issuer's common stock on February 10, 2019.

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