Yancopoulos George Form 4 REGENERON PHARMACEUTICALS / GEORGE YANCOPOULOS ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:	3235-0287
Estimated average burden
hours per response:	0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

YANCOPOULOS GEORGE

(Last) (First) (Middle)

777 OLD SAW MILL RIVER ROAD

(Street)

TARRYTOWN NY 10591

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
REGENERON PHARMACEUTICALS, INC. [ REGN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
President and Chief Scientific

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2020

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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	03/09/2020		M(1)		96,736	A	$30.63	614,535	D
Common Stock	03/09/2020		F(1)		50,545	D	$476.42	563,990	D
Common Stock	03/09/2020		M(1)		150,000	A	$30.63	713,990	D
Common Stock	03/09/2020		F(1)		78,376	D	$476.42	635,614	D
Common Stock	03/10/2020		S(1)		1,159	D	$461.79(2)	634,455	D
Common Stock	03/10/2020		S(1)		3,317	D	$462.43(3)	631,138	D
Common Stock	03/10/2020		S(1)		5,463	D	$463.54(4)	625,675	D
Common Stock	03/10/2020		S(1)		5,099	D	$464.59(5)	620,576	D
Common Stock	03/10/2020		S(1)		7,068	D	$465.45(6)	613,508	D
Common Stock	03/10/2020		S(1)		11,916	D	$466.58(7)	601,592	D
Common Stock	03/10/2020		S(1)		10,023	D	$467.53(8)	591,569	D
Common Stock	03/10/2020		S(1)		8,542	D	$468.49(9)	583,027	D
Common Stock	03/10/2020		S(1)		7,250	D	$469.46(10)	575,777	D
Common Stock	03/10/2020		S(1)		5,531	D	$470.48(11)	570,246	D
Common Stock	03/10/2020		S(1)		5,258	D	$471.34(12)	564,988	D
Common Stock	03/10/2020		S(1)		10,270	D	$472.56(13)	554,718	D
Common Stock	03/10/2020		S(1)		8,024	D	$473.39(14)	546,694	D
Common Stock	03/10/2020		S(1)		7,060	D	$474.52(15)	539,634	D
Common Stock	03/10/2020		S(1)		4,223	D	$475.43(16)	535,411	D
Common Stock	03/10/2020		S(1)		7,197	D	$476.51(17)	528,214	D
Common Stock	03/10/2020		S(1)		4,735	D	$477.5(18)	523,479	D
Common Stock	03/10/2020		S(1)		1,469	D	$478.43(19)	522,010	D
Common Stock	03/10/2020		S(1)		1,651	D	$479.6(20)	520,359	D
Common Stock	03/10/2020		S(1)		60	D	$480.34	520,299	D
Common Stock	03/10/2020		S(1)		100	D	$481.68	520,199	D
Common Stock	03/10/2020		S(1)		355	D	$483.8(21)	519,844	D
Common Stock	03/10/2020		S(1)		345	D	$484.72(22)	519,499	D
Common Stock	03/10/2020		S(1)		1,693	D	$485.63(23)	517,806	D
Common Stock	03/10/2020		S(1)		7	D	$486.31	517,799(24)	D
Common Stock								5,791	I	By 401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction 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 (Month/Day/Year)		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: 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:

1. Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c).

2. Represents volume-weighted average price of sales of 1,159 shares of Company stock on March 10, 2020 at prices ranging from $461.12 to $461.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

3. Represents volume-weighted average price of sales of 3,317 shares of Company stock on March 10, 2020 at prices ranging from $462.02 to $462.94. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

4. Represents volume-weighted average price of sales of 5,463 shares of Company stock on March 10, 2020 at prices ranging from $463.04 to $463.91. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

5. Represents volume-weighted average price of sales of 5,099 shares of Company stock on March 10, 2020 at prices ranging from $464.09 to $464.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

6. Represents volume-weighted average price of sales of 7,068 shares of Company stock on March 10, 2020 at prices ranging from $465.08 to $465.96. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

7. Represents volume-weighted average price of sales of 11,916 shares of Company stock on March 10, 2020 at prices ranging from $466.02 to $466.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

8. Represents volume-weighted average price of sales of 10,023 shares of Company stock on March 10, 2020 at prices ranging from $467.00 to $467.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

9. Represents volume-weighted average price of sales of 8,542 shares of Company stock on March 10, 2020 at prices ranging from $468.01 to $468.95. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

10. Represents volume-weighted average price of sales of 7,250 shares of Company stock on March 10, 2020 at prices ranging from $469.03 to $469.94. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

11. Represents volume-weighted average price of sales of 5,531 shares of Company stock on March 10, 2020 at prices ranging from $470.05 to $470.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

12. Represents volume-weighted average price of sales of 5,258 shares of Company stock on March 10, 2020 at prices ranging from $471.00 to $471.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

13. Represents volume-weighted average price of sales of 10,270 shares of Company stock on March 10, 2020 at prices ranging from $472.02 to $472.97. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

14. Represents volume-weighted average price of sales of 8,024 shares of Company stock on March 10, 2020 at prices ranging from $473.02 to $473.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

15. Represents volume-weighted average price of sales of 7,060 shares of Company stock on March 10, 2020 at prices ranging from $474.04 to $474.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

16. Represents volume-weighted average price of sales of 4,223 shares of Company stock on March 10, 2020 at prices ranging from $475.06 to $475.96. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

17. Represents volume-weighted average price of sales of 7,197 shares of Company stock on March 10, 2020 at prices ranging from $476.02 to $476.97. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

18. Represents volume-weighted average price of sales of 4,735 shares of Company stock on March 10, 2020 at prices ranging from $477.00 to $477.94. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

19. Represents volume-weighted average price of sales of 1,469 shares of Company stock on March 10, 2020 at prices ranging from $478.09 to $478.99. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

20. Represents volume-weighted average price of sales of 1,651 shares of Company stock on March 10, 2020 at prices ranging from $479.00 to $479.94. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

21. Represents volume-weighted average price of sales of 355 shares of Company stock on March 10, 2020 at prices ranging from $483.78 to $483.89. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

22. Represents volume-weighted average price of sales of 345 shares of Company stock on March 10, 2020 at prices ranging from $484.72 to $484.76. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

23. Represents volume-weighted average price of sales of 1,693 shares of Company stock on March 10, 2020 at prices ranging from $485.12 to $485.65. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on March 10, 2020 at each separate price.

24. Form one of two

	/s/**George D. Yancopoulos	03/11/2020
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.