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Biogen stock split history

Biogen Inc. · end-of-day data as of Nov 13, 2026

Biogen
BIIB · $37.46B
$253.40+1.2%
Nov 13, 2026 · close
$220$240SepOctNov9:3016:003 months +19.2%Nov 13 · close
▲ 4
  • ConsensusBuy · 36
  • Trendbullish
  • MAs4 of 4
  • Sector▲ +15.9%
Neutral
  • Earnings in84d
  • P/E108.3x
  • RSI59
  • Support-10.6%
  • Off 52w high-2.9%
  • Volume0.8x
  • Bollingerupper half
  • News0.00
  • PT$254.56 +0.5%
  • 52w range$160–$261
  • ATR+3.1%
  • Off ATH-47.2%
  • InsidersNone in 90d
▼ 3
  • P/E vs own+148.5%
  • P/E vs sector+236.2%
  • MACD-0.62

Updates with the 15-min delayed price. Not a forecast or investment advice.

Biogen BIIB last split its stock 3-for-1 on Jan 18, 2001: every share became 3. It has split 2 times since 1999: 3-for-1 on Jan 18, 2001 and 2-for-1 on Dec 21, 1999. One share held before the first of them is 6 shares today.

Price and splits

⇔⇕$127$186$245$305Nov 21Nov 22Nov 23Nov 24Nov 25Nov 26AAEAAAAEEAAAEAEAEAEEAAAEAEEEAAAAAEAEEEAAEAAAEAAEAAEAE

Last close $253.40 · -7.1% over 5y · E earnings · D dividend · S split · A analyst rating change