VRTX Vertex 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                                                                                   
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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 * MCGLYNN MARGARET G	2. Issuer Name and Ticker or Trading Symbol VERTEX PHARMACEUTICALS INC / MA [ VRTX ]	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) C/O VERTEX PHARMACEUTICALS INCORPORATED, 50 NORTHERN AVENUE	3. Date of Earliest Transaction (MM/DD/YYYY) 6/1/2021
(Street) BOSTON, MA 02210 (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	6/1/2021		D		699	D	(1)	1099	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
Deferred Stock Units	(2)	6/1/2021		A		699		(2)	(2)	Common Stock	699	(1)	4688	D

Explanation of Responses:
(1)	Upon the vesting of restricted stock units granted to Ms. McGlynn on June 1, 2020, Ms. McGlynn deferred the receipt of 699 shares of common stock and received instead 699 deferred stock units pursuant to the Company's deferred compensation plan. As a result, Ms. McGlynn is reporting the disposition of 699 shares of common stock in exchange for an equal number of deferred stock units.
(2)	Each deferred stock unit represents one share of common stock and is paid out in common stock upon the earliest to occur of (i) termination of Ms. McGlynn's service on our board of directors, (ii) a change of control of our company and (iii) Ms. McGlynn's disability or death.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MCGLYNN MARGARET G C/O VERTEX PHARMACEUTICALS INCORPORATED 50 NORTHERN AVENUE BOSTON, MA 02210	X

Signatures
/s/ Sabrina Yohai, Attorney-in-Fact		6/3/2021
**Signature of Reporting Person		Date