ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

Atika Capital Management LLC's Holding History (CIK: 0001599731)

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

Q4 2025
Shares 10,339 Value ($000) $4,111 Avg Close $442.56 Range $387.03 - $495.55
Q3 2025
Shares 22,206 Value ($000) $10,126 Avg Close $407.20 Range $309.57 - $484.21
Q2 2025
Shares 27,700 Value ($000) $9,033 Avg Close $276.71 Range $205.87 - $327.21
Q3 2024
Shares 31,000 Value ($000) $8,526 Avg Close $260.36 Range $231.01 - $287.55
Q2 2024
Shares 24,500 Value ($000) $5,954 Avg Close $157.87 Range $141.98 - $252.87
Q3 2021
Shares 64,000 Value ($000) $12,083 Avg Close $187.58 Range $166.16 - $209.73
Q2 2018
Shares 23,000 Value ($000) $2,265 Avg Close $99.19 Range $87.35 - $118.71
Q1 2018
Shares 41,000 Value ($000) $4,883 Avg Close $128.92 Range $108.13 - $153.99
Q4 2017
Shares 25,000 Value ($000) $3,176 Avg Close $125.65 Range $111.25 - $147.63
Q3 2017
Shares 25,000 Value ($000) $2,937 Avg Close $85.36 Range $70.76 - $119.02
Q3 2016
Shares 22,000 Value ($000) $1,492 Avg Close $70.55 Range $53.56 - $80.11
Q2 2016
Shares 14,000 Value ($000) $777 Avg Close $63.00 Range $49.96 - $75.08
Q2 2015
Shares 24,000 Value ($000) $2,877 Avg Close $119.50 Range $98.63 - $140.00
Q1 2015
Shares 5,500 Value ($000) $574 Avg Close $101.34 Range $82.06 - $121.93
Q2 2014
Shares 20,000 Value ($000) $1,263 Avg Close $59.44 Range $47.03 - $71.40