ALNY (Alnylam Pharmaceuticals Inc.) historical data
STOCKListed1-minute bars
| Symbol | ALNY |
|---|---|
| Name | Alnylam Pharmaceuticals Inc. |
| Exchange | NASDAQ |
| Sector | Healthcare |
| Industry | Biotechnology |
| IPO date | 2004-06-01 |
| History | 2004-06-02 to 2026-10-09 (about 22 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Price history at a glance
ALNY last closed at $232.68 on 2026-10-09, -49.1% over the past year and +14.2% over five years. Its deepest fall from a prior high in this history was -83.6%, reached on 2011-10-03.
| Last close | $232.68 (2026-10-09) |
|---|---|
| 1-year change | -49.1% |
| 5-year change | +14.2% |
| Annualized since 2004-06-02 | +16.8% |
| 52-week range | $205.48 – $491.22 |
| Deepest drawdown | -83.6% (2011-10-03) |
| Avg. daily dollar volume (3 months) | $420.3m |
| Daily bars in history | 5,625 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Institutional ownership (13F, 2026Q2)
| Managers holding | 788 |
|---|---|
| Shares held | 133,498,237 ($40.2bn reported value) |
| Quarter flows | 87 new, 324 added, 280 trimmed, 92 exited; +2,097,877 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("ALNY") on the look-back bundles. Top holders of ALNY · All 13F managers
Short interest (2026-09-30)
| Shares short | 7,711,495 (+7.2% vs prior report) |
|---|---|
| Days to cover | 6.45 |
ALNY short interest history · Healthcare sector
Get it in Python
import finzdata as yf
df = yf.Ticker("ALNY").history(start="2004-06-02", interval="1d")
df.tail()