REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

JW Asset Management, LLC's Holding History (CIK: 0001549738)

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

Q4 2015

Shares 21,080 Value ($000) $11,444 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 52,080 Value ($000) $24,224 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 48,619 Value ($000) $24,802 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 47,338 Value ($000) $21,372 Avg Close $421.46 Range $390.83 - $492.77

Q4 2014

Shares 36,355 Value ($000) $14,915 Avg Close $391.09 Range $318.29 - $435.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	21,080	$11,444	$538.82	$445.63 - $589.32
Q3 2015	52,080	$24,224	$534.07	$433.12 - $602.59
Q2 2015	48,619	$24,802	$485.93	$431.08 - $541.00
Q1 2015	47,338	$21,372	$421.46	$390.83 - $492.77
Q4 2014	36,355	$14,915	$391.09	$318.29 - $435.23