stockNASDAQ: BIIB • 3 Months Updates

Biogen Stock (BIIB) 3 Months

Showing Closing Date Range from Aug 1 to Oct 30, 2026.

Biogen is a biotechnology pioneer discovering and developing therapies for neurological and neurodegenerative diseases.
Price & Performance Trajectory

Biogen Inc.NASDAQ: BIIB

Latest Close
$253.62
+25.67%
3 Months Updates Trajectory
Showing Closing Date Range from Aug 1 to Oct 30, 2026.
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Click metric scorecards below to toggle price, return %, range & volume curvesBIIB session performance
✓ Latest Close USD
$253.62
Latest session close
+$51.8vs period start
Period Return % % GAIN
+25.67%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$258.73 / $199.58
Period range envelope
$59.15channel spread
Total Volume SHARES
65.26M
Period turnover
Avg: 1.04M/dLiquidity

Historical Session Ledger

Daily open, high, low, and close prices with volume and period returns.

Historical Quotes & Breakdown(63 dates)
DateClose (USD)Return %HighLowVolume
Oct 30, 2026$253.62+1.59% $258.73$251.191.30M
Oct 29, 2026$249.65+2.29% $255.55$246.481.14M
Oct 28, 2026$244.05-3.43% $258.63$243.032.32M
Oct 27, 2026$252.73+0.19% $253.98$248.461.19M
Oct 26, 2026$252.26+0.63% $254.00$249.61958.8K
Oct 23, 2026$250.69-1.24% $252.44$246.151.15M
Oct 22, 2026$253.84+5.34% $254.39$240.052.24M
Oct 21, 2026$240.98-0.87% $243.32$240.15812.8K
Oct 20, 2026$243.10+4.12% $244.65$236.241.49M
Oct 19, 2026$233.48+0.36% $236.00$231.04949.4K
Oct 16, 2026$232.65-1.15% $236.74$232.461.46M
Oct 15, 2026$235.35+1.08% $240.99$235.221.57M
Oct 14, 2026$232.83+1.72% $234.20$228.001.86M
Oct 13, 2026$228.90-0.22% $231.04$226.711.05M
Oct 12, 2026$229.41+1.64% $238.24$229.001.46M
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