LANTHEUS HLDGS INC

Ticker: LNTH CUSIP: 516544103 Class: Common Stock

Monashee Investment Management LLC's Holding History (CIK: 0001627608)

Note: Option positions (PUT/CALL) are excluded.

Q1 2017

Shares 425,000 Value ($000) $5,313 Avg Close $10.58 Range $7.95 - $14.25

Q3 2016

Shares 180,000 Value ($000) $1,490 Avg Close $6.62 Range $3.46 - $10.10

Q2 2015

Shares 185,400 Value ($000) $1,148 Avg Close $6.38 Range $5.97 - $7.19

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	425,000	$5,313	$10.58	$7.95 - $14.25
Q3 2016	180,000	$1,490	$6.62	$3.46 - $10.10
Q2 2015	185,400	$1,148	$6.38	$5.97 - $7.19