ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q4 2025
Shares 488,897 Value ($000) $194,410 Avg Close $442.56 Range $387.03 - $495.55
Q3 2025
Shares 500,672 Value ($000) $228,306 Avg Close $407.20 Range $309.57 - $484.21
Q2 2025
Shares 487,328 Value ($000) $158,913 Avg Close $276.71 Range $205.87 - $327.21
Q1 2025
Shares 497,484 Value ($000) $134 Avg Close $257.00 Range $230.79 - $300.90
Q4 2024
Shares 503,045 Value ($000) $118 Avg Close $262.99 Range $229.86 - $304.39
Q3 2024
Shares 525,303 Value ($000) $144 Avg Close $260.36 Range $231.01 - $287.55
Q2 2024
Shares 569,282 Value ($000) $138 Avg Close $157.87 Range $141.98 - $252.87
Q1 2024
Shares 581,851 Value ($000) $87 Avg Close $166.82 Range $143.52 - $199.38
Q4 2023
Shares 608,728 Value ($000) $117 Avg Close $170.34 Range $148.10 - $198.00
Q3 2023
Shares 625,401 Value ($000) $111 Avg Close $191.12 Range $168.65 - $218.88
Q2 2023
Shares 645,143 Value ($000) $123 Avg Close $198.26 Range $183.00 - $212.47
Q1 2023
Shares 658,226 Value ($000) $132 Avg Close $210.20 Range $179.19 - $242.39
Q4 2022
Shares 712,556 Value ($000) $169 Avg Close $213.29 Range $181.65 - $242.97
Q3 2022
Shares 747,750 Value ($000) $149,670 Avg Close $190.74 Range $135.46 - $236.80
Q2 2022
Shares 828,079 Value ($000) $120,775 Avg Close $141.87 Range $117.58 - $180.35
Q1 2022
Shares 868,748 Value ($000) $141,858 Avg Close $152.35 Range $125.00 - $174.66
Q4 2021
Shares 996,437 Value ($000) $168,976 Avg Close $185.86 Range $154.82 - $212.00
Q3 2021
Shares 968,107 Value ($000) $182,789 Avg Close $187.58 Range $166.16 - $209.73
Q2 2021
Shares 946,065 Value ($000) $160,377 Avg Close $146.46 Range $125.08 - $177.53