BIIB earnings date and history (2026)
Biogen Inc. (BIIB) next reports earnings on Wed Oct 28 before the open. Analysts expect EPS of $2.10 (10 estimates), against $4.81 in the same quarter a year ago. Last time, on Wed Jul 29, it reported $3.60 against a $3.04 consensus (+18.4%), and the stock moved +1.8% on the news. Not investment advice.
See every company reporting on the earnings calendar or the filed financial statements.
Past reports#
Newest first. The surprise is the reported EPS against the consensus going in, in percent; the move is the stock’s close-to-close change over the first session that could trade on the report, shown once that session has settled and only where the report’s timing is established — Nasdaq’s calendar, the time the company filed its earnings release with the SEC and the day’s trading volume, by majority.
| Date | Est | Actual | Move |
|---|---|---|---|
| Jul 29, 2026 | $3.04 | $3.60 | +1.8% |
| Apr 29, 2026 | $2.95 | $3.57 | +6.0% |
| Feb 6, 2026 | $1.61 | $1.99 | +8.5% |
| Oct 30, 2025 | $3.89 | $4.81 | +1.2% |
| Jul 31, 2025 | $3.93 | $5.47 | +1.1% |
| May 1, 2025 | $3.26 | $3.02 | -0.1% |
| Feb 12, 2025 | $3.42 | $3.44 | -4.3% |
| Oct 30, 2024 | $3.77 | $4.08 | -1.2% |
| Aug 1, 2024 | $4.00 | $5.28 | -1.2% |
| Apr 24, 2024 | $3.45 | $3.67 | +4.6% |
| Feb 13, 2024 | $3.16 | $2.95 | -7.4% |
| Nov 8, 2023 | $3.99 | $4.36 | -5.7% |
About this data#
Report dates, sessions, consensus EPS estimates, reported EPS and surprises come from Nasdaq's public earnings calendar and analyst pages, read daily; they are estimates, subject to change, and may not be accurate. A quarter the calendar saw is shown with its session; a quarter known only from the analyst page has none, and its move is left blank rather than guessed, because a pre-open and an after-close report trade on different sessions. The move is ChartRow's own: the first settled close that could trade on the report over the close before it, price return. Not investment advice.
FAQ#
- When does BIIB report earnings?
- BIIB is scheduled to report on Wed Oct 28 before the open, according to Nasdaq's earnings calendar. Dates are set by the company and can move.
- What EPS is expected from BIIB?
- The consensus estimate is $2.10 a share across 10 analysts; the same quarter a year ago came in at $4.81.
- Did BIIB beat earnings last quarter?
- Yes: on Wed Jul 29 BIIB reported $3.60 against a $3.04 consensus, a +18.4% surprise.
- How did BIIB stock react to its last earnings?
- BIIB moved +1.8% on its last earnings report. It reported on Wed Jul 29, 2026, before the open, so that day's session was the first that could react. BIIB closed at $205.61 on Tue Jul 28 and at $209.23 on Wed Jul 29, and $209.23 ÷ $205.61 − 1 = +1.8%. Both are ChartRow's own settled closing prices.