ARNA Arena Pharmaceuticals Inc

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 * Nova Tina Susan	2. Issuer Name and Ticker or Trading Symbol ARENA PHARMACEUTICALS INC [ ARNA ]	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) 6154 NANCY RIDGE DRIVE	3. Date of Earliest Transaction (MM/DD/YYYY) 8/26/2020
(Street) SAN DIEGO, CA 92121 (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	8/26/2020		M		1200	A	$14.90	17776	D
Common Stock	8/26/2020		M		3600	A	$12.70	21376	D
Common Stock	8/26/2020		M		12500	A	$20.00	33876	D
Common Stock	8/26/2020		S		17300	D	$67.9366 (1)	16576	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 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
Stock Option (right to buy)	$14.90	8/26/2020		M			1200	(2)	3/15/2021	Common Stock	1200	$0.00	0	D
Stock Option (right to buy)	$12.70	8/26/2020		M			3600	(3)	6/13/2021	Common Stock	3600	$0.00	0	D
Stock Option (right to buy)	$20.00	8/26/2020		M			12500	(4)	6/13/2023	Common Stock	12500	$0.00	0	D

Explanation of Responses:
(1)	The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.90 to $68.03, inclusive. The reporting person undertakes to provide Arena Pharmaceuticals, Inc., any security holder of Arena Pharmaceuticals, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 1 to this Form 4.
(2)	The options vested in 12 equal monthly installments (except as otherwise necessary to avoid vesting of a fractional share) over one year beginning on April 15, 2011, and were exercisable once vested.
(3)	The options vested in 12 equal monthly installments (except as otherwise necessary to avoid vesting of a fractional share) over one year beginning on July 13, 2011, and were exercisable once vested.
(4)	The options vested in 12 equal monthly installments (except as otherwise necessary to avoid vesting of a fractional share) over one year beginning on July 13, 2016, and were exercisable once vested.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Nova Tina Susan 6154 NANCY RIDGE DRIVE SAN DIEGO, CA 92121	X

Signatures
/s/ Andrew J. Cronauer, as Attorney-in-Fact		8/28/2020
**Signature of Reporting Person		Date