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BIIB
NASDAQ Life Sciences

Biogen, Denali Parkinson's Drug Fails Phase 2b Trial, Development Halted

Reported by Dow Jones Newswires
Sentiment info
Negative
Importance info
9
Price
$187.5
Mkt Cap
$27.973B
52W Low
$121.05
52W High
$205.97
52W Position info
55% above low
Off High info
9.0% below high
Rel. Volume info
1.3× avg
Market data snapshot near publication time

BIIB sits 55% above its 52-week low of $121.05.

Summary

Biogen and Denali Therapeutics announced their Parkinson's drug, BIIB122, failed to meet its primary and secondary endpoints in a Phase 2b trial. As a result, development of BIIB122 for idiopathic Parkinson's disease is being discontinued. This represents a significant setback for both companies' neurology pipelines, following a period of positive news for Biogen including strong Q1 results and several successful drug developments and acquisitions. While Denali will continue a Phase 2a study for a specific LRRK2 variant, the broader and more lucrative idiopathic Parkinson's indication is now off the table.

At the time of this announcement, BIIB was trading at $187.50 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $28B. The 52-week trading range was $121.05 to $205.97. This news item was assessed with negative market sentiment and an importance score of 9 out of 10. Source: Dow Jones Newswires.


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BIIB
Jul 01, 2026, 4:08 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $209.74
Real-time Price: $216.12 info
Change: +$6.38 (+3%) info
Market Cap: $31.907B info
BIIB
Jun 30, 2026, 3:13 AM EDT
Source: Wiseek News
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7
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Real-time Price: $216.12 info
Change: -$0.880 (-0.41%) info
Market Cap: $31.907B info
BIIB
Jun 26, 2026, 7:56 AM EDT
Source: Reuters
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8
Price at Filing: $201.01
Real-time Price: $216.12 info
Change: +$15.11 (+8%) info
Market Cap: $31.907B info
BIIB
Jun 18, 2026, 5:52 AM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $199.58
Real-time Price: $216.12 info
Change: +$16.54 (+8%) info
Market Cap: $31.907B info
BIIB
Jun 17, 2026, 6:59 PM EDT
Source: Dow Jones Newswires
Importance Score:
8
Price at Filing: $197.92
Real-time Price: $216.12 info
Change: +$18.20 (+9%) info
Market Cap: $31.907B info
BIIB
Jun 16, 2026, 9:28 AM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $197.77
Real-time Price: $216.12 info
Change: +$18.35 (+9%) info
Market Cap: $31.907B info
BIIB
Jun 10, 2026, 4:49 PM EDT
Filing Type: 8-K/A
Importance Score:
7
Price at Filing: $194.24
Real-time Price: $216.12 info
Change: +$21.88 (+11%) info
Market Cap: $31.907B info
BIIB
Jun 04, 2026, 7:30 AM EDT
Source: GlobeNewswire
Importance Score:
8
Price at Filing: $195.96
Real-time Price: $216.12 info
Change: +$20.16 (+10%) info
Market Cap: $31.907B info
BIIB
Jun 01, 2026, 1:06 AM EDT
Source: Reuters
Importance Score:
9
Price at Filing: $196.00
Real-time Price: $216.12 info
Change: +$20.12 (+10%) info
Market Cap: $31.907B info
BIIB
May 27, 2026, 2:23 AM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $193.08
Real-time Price: $216.12 info
Change: +$23.04 (+12%) info
Market Cap: $31.907B info