ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q4 2025
Shares 180 Value ($000) $72 Avg Close $442.56 Range $387.03 - $495.55
Q3 2025
Shares 173 Value ($000) $79 Avg Close $407.20 Range $309.57 - $484.21
Q2 2025
Shares 154 Value ($000) $50 Avg Close $276.71 Range $205.87 - $327.21
Q1 2025
Shares 27 Value ($000) $7 Avg Close $257.00 Range $230.79 - $300.90
Q4 2024
Shares 30 Value ($000) $7 Avg Close $262.99 Range $229.86 - $304.39
Q3 2024
Shares 52 Value ($000) $14 Avg Close $260.36 Range $231.01 - $287.55
Q2 2024
Shares 27 Value ($000) $7 Avg Close $157.87 Range $141.98 - $252.87
Q1 2024
Shares 27 Value ($000) $4 Avg Close $166.82 Range $143.52 - $199.38
Q4 2023
Shares 402 Value ($000) $77 Avg Close $170.34 Range $148.10 - $198.00
Q3 2023
Shares 642 Value ($000) $114 Avg Close $191.12 Range $168.65 - $218.88
Q2 2023
Shares 27 Value ($000) $5 Avg Close $198.26 Range $183.00 - $212.47
Q1 2023
Shares 27 Value ($000) $5 Avg Close $210.20 Range $179.19 - $242.39
Q3 2019
Shares 123 Value ($000) $10 Avg Close $79.11 Range $69.11 - $88.00
Q2 2019
Shares 123 Value ($000) $9 Avg Close $76.72 Range $65.81 - $96.08
Q1 2019
Shares 120 Value ($000) $11 Avg Close $83.64 Range $70.29 - $93.95
Q1 2018
Shares 15 Value ($000) $2 Avg Close $128.92 Range $108.13 - $153.99
Q4 2017
Shares 35 Value ($000) $4 Avg Close $125.65 Range $111.25 - $147.63
Q1 2015
Shares 40 Value ($000) $4 Avg Close $101.34 Range $82.06 - $121.93
Q4 2014
Shares 40 Value ($000) $4 Avg Close $92.65 Range $72.80 - $111.49