Nightstar Therapeutics (NITE) Form 4 Nightstar Therapeutics / Seokho Bryan Yoon 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

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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^*

Yoon Seokho Bryan

(Last) (First) (Middle)

C/O NIGHTSTAR, INC.

203 CRESCENT STREET, SUITE 303

(Street)

WALTHAM MA 02453

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Nightstar Therapeutics plc [ NITE ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
General Counsel and Secretary

3. Date of Earliest Transaction (Month/Day/Year)
06/06/2019

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

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
Stock Option (Right to Buy)	$22.78	06/07/2019		D			160,000	(1)	11/05/2027	Ordinary Shares(2)	160,000	$2.72(3)	0	D
Stock Option (Right to Buy)	$14.24	06/07/2019		D			15,000	(1)	01/30/2028	Ordinary Shares(2)	15,000	$11.26(3)	0	D
Stock Option (Right to Buy)	$14.74	06/07/2019		D			85,100	(1)	01/21/2029	Ordinary Shares(2)	85,100	$10.76(3)	0	D

Explanation of Responses:

1. In connection with the acquisition by Tungsten Bidco Limited of the entire issued and to be issued share capital of Nightstar Therapeutics plc (the "Issuer") on June 7, 2019 by means of a scheme of arrangement under Part 26 of the UK Companies Act 2006, all stock options were cancelled in exchange for a payment equal to $25.50 with respect to each ordinary share subject to the option award, less the applicable exercise price.

2. The ordinary shares, nominal value GBP 0.01 per share, of the Issuer may be represented by American Depositary Shares ("ADSs"). Each ADS represents one ordinary share of the Issuer.

3. Represents the payment per share received in exchange for the cancellation of each option of $25.50, less the applicable exercise price.

Remarks:

	/s/ Seokho Bryan Yoon	06/07/2019
	** 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).
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