UMBF UMB Financial Corporation

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                                                                                   
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response... 0.5                       
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 * KEMPER J MARINER	2. Issuer Name and Ticker or Trading Symbol UMB FINANCIAL CORP [ UMBF ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) Chairman and CEO
(Last)          (First)          (Middle) 1010 GRAND BLVD.	3. Date of Earliest Transaction (MM/DD/YYYY) 3/2/2021
(Street) KANSAS CITY, MO 64106 (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	3/2/2021		S		18	D	$86.05	2029710	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.05	2029610	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.05	2029510	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.065	2029410	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.065	2029310	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		31	D	$86.00	2029279	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		15	D	$86.00	2029264	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.00	2029164	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.025	2029064	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		85	D	$86.00	2028979	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.00	2028879	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		100	D	$86.01	2028779	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		200	D	$86.01	2028579	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		45	D	$86.00	2028534	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		51	D	$86.045	2028483	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		49	D	$86.05	2028434	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		49	D	$86.045	2028385	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		49	D	$86.06	2028336	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		39	D	$86.05	2028297	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		54	D	$86.05	2028243	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		3	D	$86.06	2028240	I	By Trust - RC Kemper Irrevocable Trust
Common Stock	3/2/2021		S		4	D	$86.00	2028236	I	By Trust - RC Kemper Irrevocable Trust
Common Stock								198555.6353	D
Common Stock								1000	I	By Daughter - Custodial Brokerage Account
Common Stock								2103.133	I	By Esop
Common Stock								1000	I	By Son - Custodial Brokerage Account
Common Stock								53800	I	By Trust - TUW RC Kemper For John Mariner
Common Stock								12558	I	By Trust: Mary S Hunt Trust
Common Stock								290397	I	Held by Kemper Realty
Common Stock								395989	I	Held by Pioneer Service Corporation

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:

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KEMPER J MARINER 1010 GRAND BLVD. KANSAS CITY, MO 64106	X		Chairman and CEO

Signatures
/s/ John C. Pauls, Attorney-in-fact for Mr. Kemper		3/3/2021
**Signature of Reporting Person		Date