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Alnylam Pharmaceuticals, Inc.
$237.10 0.23% today
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Why Alnylam Pharmaceuticals, Inc. (ALNY) stock moved

Updated Aug 29, 2026

Alnylam Pharmaceuticals, Inc. (ALNY) shares rose 0.2% to $237.10 as of August 29, 2026, a slight gain from the prior close of $236.56. BestStocks flagged the session as a major change for ALNY. The move is tied to price move up. Below, we break down what changed for ALNY, why it matters for investors, how the stock reacted, and the catalysts on the calendar.

What happened

ALNY climbed 0.2% to $237.10

ALNY rose 0.2% in its latest session, moving from $236.56 to $237.10.

Material / EarningsWeak confidence
Rel. volume
1.2×
Normal
Vs peers
No comparable peers
Market cap
$31.7B
NASDAQ Global Select
Analyst target
$345
+45.4% vs price
Price chart
Jul 29 – Aug 28
EEVVEEEEEEVF$205$246$287Jul 29Aug 6Aug 13Aug 21Aug 28
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details

What it means for Alnylam Pharmaceuticals, Inc. investors

For Alnylam Pharmaceuticals, Inc. investors, the recent signals are mixed, leaving the near-term picture neutral / mixed. On the constructive side: Material positive event; Positive 0.2% session move. Weighing against that: Alnylam Pharmaceuticals plummeted 27.66% to $207.34 following an earnings report and material event filing (8-K) released today; Alnylam Pharmaceuticals, Inc. (ALNY) moved -5.54% from $283.15 to $267.47 on 2026-07-17. Wall Street's consensus price target sits at $344.83, implying +45.4% upside from $237.10. Over the past 90 days analysts logged 1 upgrade and 0 downgrades. BestStocks rates the overall signal quality weak (36/100). With earnings roughly 61 days out, the next report is the most likely near-term test of the move.

ALNY price reaction

ALNY last traded at $237.10, up $0.54 (+0.23%) from the previous close of $236.56. The session traded on 1.2× average volume (normal), so participation was unremarkable. Over the past month the stock has ranged between $205.48 and $286.62, and it currently sits about 39% of the way up that band.

Bullish and bearish analyst opinions on Alnylam Pharmaceuticals, Inc. (ALNY)

The consensus analyst price target on Alnylam Pharmaceuticals, Inc. (ALNY) is $344.83, 45.4% above the recent $237.10. Over the past 90 days analysts logged 1 upgrade, 21 maintains, and 0 downgrades. Here is how the bullish and bearish cases on ALNY line up.

The bullish case

  • Wall Street's consensus price target of $344.83 implies +45.4% upside from $237.10.
  • The Street's most bullish target is $455.00 (+91.9%).
  • 1 analyst upgrade in the past 90 days, most recently Raymond James to Strong Buy (2026-08-03).
  • Material positive event.
  • Positive 0.2% session move.

The bearish case

  • The most bearish analyst target is $230.00 (-3.0%).
  • Alnylam Pharmaceuticals plummeted 27.66% to $207.34 following an earnings report and material event filing (8-K) released today.
Bull vs bear balanceNeutral / Mixed
BearishNeutralBullish

Weighing both sides, BestStocks' composite read of recent signals is roughly balanced, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.

Analyst price targets and ratings are FMP consensus figures as of Aug 28, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.

Analyst expectations
Consensus target: $345+45.4%
1 upgrades= 21 maintains
BMO Capital maintained Outperform · 2026-08-19
SEC filings watch
10-Q2026-07-30
Quarterly financial results
medium
8-K2026-07-30
Material event — review for impact
high
8-K2026-05-27
Material event — review for impact
high
Peer context
ALNY+0.2%

Previous notable changes for ALNY

Material / Earnings2026-08-21+3.0%
Alnylam Pharmaceuticals, Inc. (ALNY) moved +3.21% from $228.88 to $236.22 on 2026-08-21. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume remained near its 5-day average at 1.1x.
Material / Earnings2026-08-20-5.5%
Alnylam Pharmaceuticals, Inc. (ALNY) moved -4.05% from $238.97 to $229.30 on 2026-08-20. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume remained near its 5-day average.
Material / Earnings2026-08-19+6.1%
Alnylam Pharmaceuticals, Inc. (ALNY) moved +3.52% from $234.36 to $242.61 on 2026-08-19. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was near its 5-day average, showing no unusual trading activity.
Material / Earnings2026-08-06-5.5%
ALNY moved -5.45% from its $228.58 open to a $216.12 close on 2026-08-06.
Upcoming catalysts & outlook
Next earnings
2026-10-29 (est.)
in 61 days
Thesis shift
Neutral / Mixed
bearish signal
Risk level
High
from change events

Frequently asked questions about ALNY

Why did Alnylam Pharmaceuticals, Inc. (ALNY) stock move?

ALNY rose 0.2% to $237.10. No single company-specific catalyst was confirmed during the move window, and it looks technical.

How much did ALNY stock rise?

ALNY gained 0.23% ($0.54) versus the prior close of $236.56, last trading at $237.10 on 1.2× average volume.

When is Alnylam Pharmaceuticals, Inc.'s next earnings date?

ALNY's next earnings report is estimated for 2026-10-29 — about 61 days away.

What is the analyst price target for ALNY?

The consensus analyst price target for ALNY is $344.83, about 45.4% above the current $237.10. Over the past 90 days, analysts recorded 1 upgrade, 21 maintains, and 0 downgrades.

How BestStocks tracks ALNY

This page is generated automatically by BestStocks' change-detection system after price move up was detected and verified against independent data sources. It draws on 20 tracked change events for ALNY, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of August 29, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.

Data sources
FMP real-time & historical price dataFMP earnings & estimatesSEC EDGAR filingsAnalyst ratings & price targets (FMP)Earnings calendar (FMP)
Educational research tool — not personalized investment advice. Data may be delayed.