Statement of Changes in Beneficial Ownership (4)

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 ^* BIRD JEFFREY W	2. Issuer Name and Ticker or Trading Symbol PORTOLA PHARMACEUTICALS INC [ PTLA ]	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) 755 PAGE MILL ROAD, SUITE A-200	3. Date of Earliest Transaction (MM/DD/YYYY) 7/2/2020
(Street) PALO ALTO, CA 94304-1005 (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)
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	7/2/2020		D		20475.0000	D⁽¹⁾	$18.0000	0.0000	D ⁽²⁾
Common Stock	7/2/2020		D		10007.0000	D⁽¹⁾	$18.0000	0.0000	I	By Ltd Liability Company (SHM) ⁽³⁾
Common Stock	7/2/2020		D		45402.0000	D⁽¹⁾	$18.0000	0.0000	I	By Ltd Partnership (NEST) ⁽⁴⁾
Common Stock	7/2/2020		D		458569.0000	D⁽¹⁾	$18.0000	0.0000	I	By Trust (Trustees) ⁽⁵⁾

*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)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$24.1900	7/2/2020		D			6000.0000	⁽⁶⁾	6/1/2026	Common Stock	6000.0000	⁽⁶⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$19.7400	7/2/2020		D			14101.0000	⁽⁶⁾	6/4/2023	Common Stock	14101.0000	⁽⁶⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$42.8100	7/2/2020		D			6000.0000	⁽⁶⁾	6/7/2028	Common Stock	6000.0000	⁽⁶⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$26.0900	7/2/2020		D			6991.0000	⁽⁶⁾	6/12/2029	Common Stock	6991.0000	⁽⁶⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$17.9400	7/2/2020		D			11377.0000	⁽⁷⁾	6/12/2030	Common Stock	11377.0000	⁽⁷⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$44.3900	7/2/2020		D			10000.0000	⁽⁶⁾	6/16/2025	Common Stock	10000.0000	⁽⁶⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$35.0600	7/2/2020		D			6000.0000	⁽⁶⁾	6/16/2027	Common Stock	6000.0000	⁽⁶⁾	0.0000	D ⁽²⁾
Stock Option (Right to Buy)	$29.1900	7/2/2020		D			10000.0000	⁽⁶⁾	6/27/2024	Common Stock	10000.0000	⁽⁶⁾	0.0000	D ⁽²⁾

Explanation of Responses:
(1)	Pursuant to the Agreement and Plan of Merger, dated as of May 5, 2020, by and among Portola Pharmaceuticals, Inc. (the "Issuer"), Alexion Pharmaceuticals, Inc. ("Alexion") and Odyssey Merger Sub Inc. ("Merger Sub") (the "Merger Agreement"), on July 2, 2020, Merger Sub merged with and into the Issuer, with the Issuer continuing as the surviving corporation and a direct, wholly owned subsidiary of Alexion (the "Merger"). At the effective time of the Merger (the "Effective Time"), these shares were canceled in exchange for $18.00 per share in cash, without interest and subject to any applicable withholding taxes.
(2)	The reporting person shares pecuniary interest in these shares with other parties pursuant to contractual relationships. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in these shares.
(3)	Shares held by Sutter Hill Management Company, L.L.C. ("SHM"). Sutter Hill Ventures, a California Limited Partnership ("SHV") has voting and dispositive power over the shares held by SHM, and the reporting person is a trustee of a trust which is a member of SHM. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein.
(4)	Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the general partner. The reporting person disclaims beneficial ownership of these shares except as to the reporting person's pecuniary interest therein.
(5)	Shares held by a trust of which the reporting person is a trustee. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in the trust.
(6)	In connection with the Merger, these options were canceled without payment.
(7)	At the Effective Time, this unvested and outstanding option was accelerated, canceled and converted into the right to receive a cash amount equal to the product of (i) the number of shares that are subject to such options and (ii) $18.00 less the applicable exercise price per share of such options, subject to any applicable withholding or other taxes required by applicable law.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
BIRD JEFFREY W 755 PAGE MILL ROAD, SUITE A-200 PALO ALTO, CA 94304-1005	X