Statement of Changes in Beneficial Ownership (4)

FORM 4 [X] 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 ^* Wijngaard Peter	2. Issuer Name and Ticker or Trading Symbol MEDICINES CO /DE [ MDCO ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Development Officer
(Last) (First) (Middle) C/O THE MEDICINES COMPANY, 8 SYLVAN WAY	3. Date of Earliest Transaction (MM/DD/YYYY) 1/6/2020
(Street) PARSIPPANY, NJ 07054 (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	1/6/2020		D		107546	D	⁽¹⁾	0	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)
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	$15.94	1/6/2020		D			10000	⁽²⁾	⁽²⁾	Common Stock	10000	$0	0	D
Stock Option	$22.04	1/6/2020		D			17500	⁽²⁾	⁽²⁾	Common Stock	17500	$0	0	D
Stock Option	$31.49	1/6/2020		D			40995	⁽²⁾	⁽²⁾	Common Stock	40995	$0	0	D
Stock Option	$30.55	1/6/2020		D			23639	⁽²⁾	⁽²⁾	Common Stock	23639	$0	0	D
Stock Option	$28.77	1/6/2020		D			7143	⁽²⁾	⁽²⁾	Common Stock	7143	$0	0	D
Stock Option	$28.77	1/6/2020		D			30000	⁽²⁾	⁽²⁾	Common Stock	30000	$0	0	D
Stock Option	$33.04	1/6/2020		D			42539	⁽²⁾	⁽²⁾	Common Stock	42539	$0	0	D
Stock Option	$29.01	1/6/2020		D			30000	⁽²⁾	⁽²⁾	Common Stock	30000	$0	0	D

Explanation of Responses:
(1)	Pursuant to the Agreement and Plan of Merger, dated as of November 23, 2019 (the "Merger Agreement"), by and among the Company, Novartis AG ("Parent") and Medusa Merger Corporation ("Purchaser"), on January 6, 2020, Purchaser was merged with and into the Company (the "Merger"), with the Company surviving the Merger as an indirect wholly-owned subsidiary of Parent. Pursuant to the Merger Agreement, at the effective time of the Merger, each share of common stock, par value $0.001 per share, of the Company (each a "Share") was converted into the right to receive $85.00 per Share, net to the seller in cash (the "Offer Price"), without interest thereon and subject to any tax withholding.
(2)	Pursuant to the Merger Agreement, each option (each an "Option") that was outstanding immediately prior to the consummation of the tender offer by Parent and Purchaser, whether vested or unvested, became fully vested and was canceled as of immediately prior to, and contingent upon, the effective time of the Merger, in exchange for the right to receive an amount in cash equal to the product of (x) the excess (if any) of the Offer Price over the per share exercise price payable in respect of each Share issuable under such Option, multiplied by (y) the number of Shares issuable under such Option, less any required withholding taxes.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Wijngaard Peter C/O THE MEDICINES COMPANY 8 SYLVAN WAY PARSIPPANY, NJ 07054			Chief Development Officer