ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

CHESAPEAKE ASSET MANAGEMENT LLC's Holding History (CIK: 0001079397)

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

Q3 2015

Shares 18,407 Value ($000) $1,479 Avg Close $111.10 Range $76.46 - $137.89

Q2 2015

Shares 18,407 Value ($000) $2,206 Avg Close $119.50 Range $98.63 - $140.00

Q1 2015

Shares 18,407 Value ($000) $1,922 Avg Close $101.34 Range $82.06 - $121.93

Q4 2014

Shares 18,407 Value ($000) $1,785 Avg Close $92.65 Range $72.80 - $111.49

Q3 2014

Shares 25,300 Value ($000) $1,975,930 Avg Close $64.51 Range $51.93 - $79.88

Q2 2014

Shares 25,300 Value ($000) $1,598 Avg Close $59.44 Range $47.03 - $71.40

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	18,407	$1,479	$111.10	$76.46 - $137.89
Q2 2015	18,407	$2,206	$119.50	$98.63 - $140.00
Q1 2015	18,407	$1,922	$101.34	$82.06 - $121.93
Q4 2014	18,407	$1,785	$92.65	$72.80 - $111.49
Q3 2014	25,300	$1,975,930	$64.51	$51.93 - $79.88
Q2 2014	25,300	$1,598	$59.44	$47.03 - $71.40