Biogen stock slips after a lower close and analyst notes

Published on 09/22/2026 at 16:16 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Biogen stock closed at USD 215.50 on September 18, 2026, down 1.62 percent. MarketBeat also showed a USD 230.14 consensus target and Stifel's USD 242.00 objective.

Fotorealistisches Biotech-Labor in Cambridge MA mit Forscherin am Mikroskop und Blick auf den Charles River — Biogen Inc. Neurowissenschaftslabor in Cambridge MA zeigt Forscherin bei Gehirngewebeanalyse unter Mikroskop ISIN US09062X1037, Illustration mit AI erstellt.

Biogen Inc. stock (ISIN US09062X1037) closed at USD 215.50 on Nasdaq on September 18, 2026, down 1.62 percent from the prior session, with a market value of about USD 31.84 billion and a 52-week range from USD 135.39 to USD 225.80.

Analysts still frame the range

According to MarketBeat, Stifel Nicolaus set a USD 242.00 price objective on Biogen in a research report on September 10, 2026, and Oppenheimer reaffirmed an outperform rating with a USD 300.00 target on July 29, 2026.

MarketBeat also put Biogen's consensus price target at USD 230.14 and its average rating at Moderate Buy. The gap to the September 18 close was USD 14.64, or 6.8 percent.

Volume and valuation

Yahoo Finance showed Biogen at USD 219.70 in premarket trade on September 21, 2026, up USD 4.20, or 1.95 percent, at 11:30:03 a.m. EDT. The move kept the shares near the upper end of the 52-week band.

What the latest report said

According to Yahoo Finance, the latest visible analyst panel on September 21, 2026 listed a low target of USD 175.00, an average of USD 238.18 and a high of USD 300.00. The same page also highlighted profit margin data, while the most recent quantified report figures visible in the available results were the Nasdaq close on September 18 and the live premarket quote on September 21.

Stock near resistance

Biogen stock stayed close to the upper end of its 52-week band on September 18, 2026, and the latest quoted intraday level of USD 219.70 on September 21, 2026 kept that setup intact.