ALNYAlnylam Pharmaceuticals, Inc.

$239.03

What is the market doing?

What the tape says about ALNY

Alnylam Pharmaceuticals, Inc. is −45% over the past year while the S&P 500 is +23%: 68 points behind the market.

−45%

1-year return · S&P 500 +23%

vs 200-day average
−29%

vs 200-day average · a clear downtrend

RSI (14)
68

RSI (14) · neutral

Below its 52-week high
−51%

Below its 52-week high

2024-08-06$175.47 – $491.22 · dashed line: 200-day average2026-08-26
Details
Last close2026-08-26
$239.03
1 monthS&P 500 +3.7%
−11%
1 yearS&P 500 +23%
−45%
5 yearsS&P 500 +87%
+34%
vs 50-day average$264.86
−9.8%
52-week high
$491.22
52-week low
$216.46
Annualised volatility
44%
Insider buying, net, 6 monthsForms 3/4/5 to 2026-06-30
−$16M
Calendar-year price return
YearReturn
2026 (year to date)−40%
2025+69%
2024+23%
2023−19%
2022+40%
2021+30%
2020+13%
2019+58%
2018−43%
2017+239%
Average return by calendar month, 2016–2026
MonthYearsPositiveAverage
Jan105 of 10+0.62%
Feb104 of 10+0.03%
Mar104 of 10+1.2%
Apr102 of 10−3.1%
May106 of 10+1.0%
Jun108 of 10+14%
Jul116 of 11+4.6%
Aug119 of 11+8.8%
Sep104 of 10+0.18%
Oct104 of 10−8.9%
Nov108 of 10+10%
Dec103 of 10−3.7%

End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.