Alnylam Pharmaceuticals, Inc. (ALNY) Stock Price History
Historical prices from 2004 to 2026
- 1M
- -2.9%
- 3M
- -11.7%
- YTD
- -30.5%
- 1Y
- -11.0%
- 3Y
- +11.3%
- 5Y
- +9.5%
Loading 10-year price history...
ALNY Historical Performance
ALNY Annual Returns
Year-by-year price performance · 2004–2026
- 2004 annual price return
- +24.3%
- 2005 annual price return
- +76.3%
- 2006 annual price return
- +65.1%
- 2007 annual price return
- +34.8%
- 2008 annual price return
- -14.5%
- 2009 annual price return
- -29.9%
- 2010 annual price return
- -45.6%
- 2011 annual price return
- -18.6%
- 2012 annual price return
- +110.7%
- 2013 annual price return
- +235.4%
- 2014 annual price return
- +51.9%
- 2015 annual price return
- -3.7%
- 2016 annual price return
- -59.8%
- 2017 annual price return
- +228.8%
- 2018 annual price return
- -44.7%
- 2019 annual price return
- +58.3%
- 2020 annual price return
- +12.4%
- 2021 annual price return
- +32.4%
- 2022 annual price return
- +36.7%
- 2023 annual price return
- -18.1%
- 2024 annual price return
- +20.7%
- 2025 annual price return
- +70.2%
- 2026 annual price return
- -16.8%
ALNY Stock Price Trajectory (2004–2026)
As of June 22, 2026, Alnylam Pharmaceuticals, Inc. (ALNY) trades at $278.09, representing a -11.0% return over the past year. The stock has delivered a +57.2% total return over five years (+9.5% CAGR), reflecting significant long-term value creation.
The stock reached its all-time high of $495.55 on October 20, 2025. From this peak, ALNY has corrected -43.9%, currently trading 26% below its 200-day moving average, suggesting potential weakness.
When compared to Healthcare sector peers IONS (+100.3% 1Y), ARWR (+423.8% 1Y), and NTLA (+63.2% 1Y), ALNY has underperformed the peer group average. Compare ALNY vs IONS →
ALNY Historical Price Data · from 2004
Rows 1–50 of 5,550| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-06-18 | 282.98 | 282.98 | 273.11 | 278.09 | 1.77M | -1.64% |
| 2026-06-17 | 281.31 | 288.00 | 277.78 | 282.72 | 1.30M | +0.29% |
| 2026-06-16 | 288.13 | 288.48 | 276.94 | 281.90 | 1.20M | -2.05% |
| 2026-06-15 | 282.92 | 288.06 | 282.92 | 287.80 | 1.08M | +1.75% |
| 2026-06-12 | 288.96 | 291.28 | 281.76 | 282.85 | 1.40M | -2.26% |
| 2026-06-11 | 290.70 | 292.98 | 285.22 | 289.39 | 1.05M | -0.63% |
| 2026-06-10 | 295.71 | 299.70 | 290.34 | 291.22 | 896K | -2.17% |
| 2026-06-09 | 297.31 | 302.85 | 294.03 | 297.69 | 1.23M | +1.89% |
| 2026-06-08 | 303.05 | 303.57 | 285.54 | 292.16 | 1.59M | -3.59% |
| 2026-06-05 | 304.62 | 306.48 | 300.50 | 303.05 | 967K | -0.19% |
| 2026-06-04 | 297.22 | 310.53 | 293.85 | 303.64 | 1.08M | +3.74% |
| 2026-06-03 | 284.48 | 293.08 | 283.10 | 292.69 | 951K | +2.30% |
| 2026-06-02 | 293.94 | 295.60 | 285.00 | 286.12 | 1.04M | -3.22% |
| 2026-06-01 | 300.80 | 303.98 | 295.40 | 295.63 | 1.01M | -2.10% |
| 2026-05-29 | 302.43 | 305.68 | 297.62 | 301.98 | 807K | -1.01% |
| 2026-05-28 | 293.00 | 305.98 | 292.77 | 305.06 | 994K | +3.19% |
| 2026-05-27 | 293.40 | 299.98 | 292.91 | 295.63 | 612K | +0.04% |
| 2026-05-26 | 299.00 | 301.09 | 294.32 | 295.50 | 506K | -0.66% |
| 2026-05-22 | 299.12 | 303.33 | 294.99 | 297.45 | 628K | -1.02% |
| 2026-05-21 | 296.64 | 301.43 | 293.00 | 300.51 | 578K | +0.68% |
| 2026-05-20 | 297.80 | 300.00 | 292.10 | 298.48 | 764K | +1.42% |
| 2026-05-19 | 284.38 | 294.93 | 284.38 | 294.30 | 713K | +2.81% |
| 2026-05-18 | 287.14 | 291.97 | 285.26 | 286.27 | 858K | -0.25% |
| 2026-05-15 | 294.78 | 298.00 | 286.87 | 286.98 | 1.10M | -2.20% |
| 2026-05-14 | 290.72 | 297.00 | 287.51 | 293.45 | 863K | +0.68% |
| 2026-05-13 | 290.70 | 298.38 | 288.56 | 291.48 | 949K | -0.19% |
| 2026-05-12 | 288.66 | 295.86 | 286.73 | 292.03 | 793K | +2.52% |
| 2026-05-11 | 294.15 | 296.37 | 284.28 | 284.84 | 1.23M | -3.46% |
| 2026-05-08 | 295.57 | 300.17 | 293.06 | 295.05 | 916K | -0.29% |
| 2026-05-07 | 300.55 | 303.46 | 293.78 | 295.91 | 1.11M | -2.34% |
| 2026-05-06 | 300.66 | 306.00 | 298.96 | 303.00 | 787K | +0.63% |
| 2026-05-05 | 297.81 | 302.67 | 295.02 | 301.11 | 602K | +1.07% |
| 2026-05-04 | 298.00 | 300.49 | 288.06 | 297.93 | 1.59M | +0.61% |
| 2026-05-01 | 307.46 | 311.88 | 295.79 | 296.11 | 947K | -4.32% |
| 2026-04-30 | 307.48 | 317.55 | 287.00 | 309.49 | 2.19M | +2.76% |
| 2026-04-29 | 300.51 | 304.22 | 294.06 | 301.19 | 1.57M | -0.30% |
| 2026-04-28 | 308.97 | 314.17 | 301.87 | 302.11 | 980K | -2.07% |
| 2026-04-27 | 303.87 | 314.52 | 303.70 | 308.51 | 1.06M | +0.97% |
| 2026-04-24 | 309.91 | 311.10 | 302.90 | 305.54 | 817K | -2.63% |
| 2026-04-23 | 313.59 | 315.83 | 310.79 | 313.79 | 574K | +1.03% |
| 2026-04-22 | 308.46 | 312.69 | 307.85 | 310.58 | 938K | +0.70% |
| 2026-04-21 | 307.32 | 310.50 | 301.75 | 308.43 | 1.37M | -0.81% |
| 2026-04-20 | 306.56 | 312.25 | 305.00 | 310.94 | 911K | +0.41% |
| 2026-04-17 | 326.09 | 326.53 | 306.04 | 309.66 | 1.43M | -3.27% |
| 2026-04-16 | 332.88 | 333.39 | 318.94 | 320.13 | 953K | -3.98% |
| 2026-04-15 | 342.00 | 342.23 | 331.02 | 333.39 | 699K | -1.77% |
| 2026-04-14 | 330.81 | 343.36 | 330.81 | 339.41 | 1.12M | +1.92% |
| 2026-04-13 | 320.61 | 333.70 | 319.00 | 333.00 | 932K | +3.37% |
| 2026-04-10 | 323.49 | 328.89 | 317.53 | 322.14 | 691K | +0.27% |
| 2026-04-09 | 325.67 | 326.90 | 318.77 | 321.28 | 1.02M | -1.82% |
Full Stock Analysis
Deep dive into ALNY consensus models and risk factors.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
ALNY — Frequently Asked Questions
Quick answers to the most common questions about buying ALNY stock.
How has ALNY stock performed recently?
ALNY declined -11.0% over the past year, below its 5-year annualized CAGR of +9.5%. The stock trades below its 200-day moving average, reflecting the downtrend.
What is ALNY's all-time high price?
Alnylam Pharmaceuticals, Inc. reached $495.55 on 2025-10-20. The 52-week high is $495.55. Current 1-year return of -11.0% places the stock further from historical peaks.
Where can I download ALNY historical price data?
This page provides ALNY daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2004-2026, downloadable in CSV format.