ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q4 2025
Shares 1,702,831 Value ($000) $677 Avg Close $442.56 Range $387.03 - $495.55
Q3 2025
Shares 1,800,294 Value ($000) $821 Avg Close $407.20 Range $309.57 - $484.21
Q2 2025
Shares 3,145,006 Value ($000) $1,026 Avg Close $276.71 Range $205.87 - $327.21
Q1 2025
Shares 3,505,168 Value ($000) $946 Avg Close $257.00 Range $230.79 - $300.90
Q4 2024
Shares 3,319,385 Value ($000) $781 Avg Close $262.99 Range $229.86 - $304.39
Q3 2024
Shares 3,451,833 Value ($000) $949 Avg Close $260.36 Range $231.01 - $287.55
Q2 2024
Shares 3,488,003 Value ($000) $848 Avg Close $157.87 Range $141.98 - $252.87
Q1 2024
Shares 3,685,753 Value ($000) $551 Avg Close $166.82 Range $143.52 - $199.38
Q4 2023
Shares 3,483,969 Value ($000) $667 Avg Close $170.34 Range $148.10 - $198.00
Q3 2023
Shares 3,925,004 Value ($000) $695 Avg Close $191.12 Range $168.65 - $218.88
Q2 2023
Shares 3,885,536 Value ($000) $738 Avg Close $198.26 Range $183.00 - $212.47
Q1 2023
Shares 3,972,876 Value ($000) $796 Avg Close $210.20 Range $179.19 - $242.39
Q4 2022
Shares 4,074,144 Value ($000) $968 Avg Close $213.29 Range $181.65 - $242.97
Q3 2022
Shares 3,720,606 Value ($000) $744,717 Avg Close $190.74 Range $135.46 - $236.80
Q2 2022
Shares 6,997,082 Value ($000) $1,020,524 Avg Close $141.87 Range $117.58 - $180.35
Q1 2022
Shares 6,794,166 Value ($000) $1,109,419 Avg Close $152.35 Range $125.00 - $174.66
Q4 2021
Shares 6,535,368 Value ($000) $1,108,268 Avg Close $185.86 Range $154.82 - $212.00
Q3 2021
Shares 5,874,235 Value ($000) $1,109,114 Avg Close $187.58 Range $166.16 - $209.73
Q2 2021
Shares 5,524,678 Value ($000) $936,543 Avg Close $146.46 Range $125.08 - $177.53
Q1 2021
Shares 5,575,213 Value ($000) $787,164 Avg Close $150.49 Range $124.00 - $178.41
Q4 2020
Shares 5,575,342 Value ($000) $724,627 Avg Close $133.53 Range $119.29 - $148.76
Q3 2020
Shares 6,014,851 Value ($000) $875,762 Avg Close $142.10 Range $119.67 - $167.33
Q2 2020
Shares 6,272,426 Value ($000) $929,009 Avg Close $134.81 Range $98.01 - $158.37
Q1 2020
Shares 6,287,760 Value ($000) $684,423 Avg Close $115.43 Range $84.97 - $134.51
Q4 2019
Shares 5,351,092 Value ($000) $616,285 Avg Close $99.70 Range $73.32 - $125.72
Q3 2019
Shares 4,883,654 Value ($000) $392,743 Avg Close $79.11 Range $69.11 - $88.00
Q2 2019
Shares 3,508,614 Value ($000) $254,585 Avg Close $76.72 Range $65.81 - $96.08
Q1 2019
Shares 3,483,589 Value ($000) $325,541 Avg Close $83.64 Range $70.29 - $93.95
Q4 2018
Shares 3,675,825 Value ($000) $268,004 Avg Close $76.92 Range $60.27 - $90.00
Q3 2018
Shares 4,200,755 Value ($000) $367,650 Avg Close $100.59 Range $86.95 - $124.22
Q2 2018
Shares 5,213,963 Value ($000) $513,523 Avg Close $99.19 Range $87.35 - $118.71
Q1 2018
Shares 12,569,334 Value ($000) $1,497,008 Avg Close $128.92 Range $108.13 - $153.99
Q4 2017
Shares 12,233,241 Value ($000) $1,554,233 Avg Close $125.65 Range $111.25 - $147.63
Q3 2017
Shares 8,564,883 Value ($000) $1,006,288 Avg Close $85.36 Range $70.76 - $119.02
Q2 2017
Shares 6,668,603 Value ($000) $531,888 Avg Close $63.91 Range $46.90 - $86.92
Q1 2017
Shares 4,167,969 Value ($000) $213,608 Avg Close $46.22 Range $35.98 - $60.41
Q4 2016
Shares 4,163,714 Value ($000) $155,889 Avg Close $41.87 Range $31.38 - $71.67
Q3 2016
Shares 4,025,408 Value ($000) $272,842 Avg Close $70.55 Range $53.56 - $80.11
Q2 2016
Shares 3,996,142 Value ($000) $221,746 Avg Close $63.00 Range $49.96 - $75.08
Q1 2016
Shares 1,284,082 Value ($000) $80,602 Avg Close $66.49 Range $51.51 - $98.00
Q4 2015
Shares 1,237,845 Value ($000) $116,531 Avg Close $92.72 Range $71.14 - $110.75
Q3 2015
Shares 1,320,195 Value ($000) $106,091 Avg Close $111.10 Range $76.46 - $137.89
Q2 2015
Shares 1,711,294 Value ($000) $205,133 Avg Close $119.50 Range $98.63 - $140.00
Q1 2015
Shares 1,261,604 Value ($000) $131,737 Avg Close $101.34 Range $82.06 - $121.93
Q4 2014
Shares 1,242,026 Value ($000) $120,477 Avg Close $92.65 Range $72.80 - $111.49
Q3 2014
Shares 3,184,062 Value ($000) $248,675 Avg Close $64.51 Range $51.93 - $79.88
Q2 2014
Shares 3,252,033 Value ($000) $205,431 Avg Close $59.44 Range $47.03 - $71.40
Q1 2014
Shares 3,594,731 Value ($000) $241,350 Avg Close $77.42 Range $60.24 - $112.57
Q4 2013
Shares 3,814,045 Value ($000) $245,358 Avg Close $59.65 Range $48.16 - $67.97
Q3 2013
Shares 4,236,735 Value ($000) $271,193 Avg Close $49.85 Range $31.75 - $65.83
Q2 2013
Shares 2,308,100 Value ($000) $71,574 Avg Close $26.61 Range $21.60 - $31.79