Patrick O'Neill Form 3 Lantheus / Patrick O'Neill ownership change

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

O'Neill Patrick

(Last) (First) (Middle)

C/O LANTHEUS HOLDINGS, INC.

331 TREBLE COVE ROAD

(Street)

NORTH BILLERICA MA 01862

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/24/2015

3. Issuer Name and Ticker or Trading Symbol
Lantheus Holdings, Inc. [ LNTH ]

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

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	6,049	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	(1)	02/26/2018	Common Stock	17,793	5.62	D
Stock Option (right to buy)	(1)	05/06/2023	Common Stock	5,233	19.11	D
Stock Option (right to buy)	(1)	02/26/2024	Common Stock	5,862	17.06	D
Stock Option (right to buy)	(2)	02/26/2025	Common Stock	8,051	12.42	D

Explanation of Responses:

1. This option is currently exercisable.

2. The shares subject to this option vest in twelve equal monthly installments, beginning March 26, 2015.

Remarks:

Exhibit List Exhibit 24 - Power of Attorney

	/s/ Michael P. Duffy, attorney-in-fact	06/24/2015
	** 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 5 (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.
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