Biogen (BIIB)
$199.92
+2.89%
event_upcoming
Est. Next Earnings: 2026-07-17
ESTIMATED
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Since Oct 27, 2004, Biogen (BIIB) has reported earnings 86 times. On average the shares move ±3.25% post-earnings, with a positive reaction 57.0% of the time. Its largest post-earnings gain was +15.17% (Apr 21, 2011) and its largest decline was -22.08% (Jul 24, 2015). The next earnings report is predicted for 2026-07-17 (estimated).
Earnings Price Reaction
Scroll to zoom, drag to pan — click earnings dots for details
Beat
Miss
Earnings Impact
Total Earnings
86
Avg Abs. Movement
±3.25%
Positive %
57.0%
Negative %
43.0%
Historical Earnings Statistics
| Date | Timing | Open | High | Close | Volume | Movement % | SEC Filing |
|---|---|---|---|---|---|---|---|
| Apr 29, 2026 | ☀ PRE | $183.12 | $195.89 | $194.38 | 2,426,299 | +6% | open_in_new |
| Feb 06, 2026 | ☀ PRE | $187.01 | $202.41 | $201.18 | 3,404,900 | +8.53% | open_in_new |
| Oct 30, 2025 | ☀ PRE | $140.10 | $154.44 | $149.61 | 2,745,200 | +1.18% | open_in_new |
| Jul 31, 2025 | ☀ PRE | $133.00 | $135.43 | $128.00 | 3,239,700 | +1.07% | open_in_new |
| May 01, 2025 | ☀ PRE | $120.37 | $125.34 | $120.93 | 2,377,200 | -0.12% | open_in_new |
| Feb 12, 2025 | ☀ PRE | $136.76 | $137.79 | $133.43 | 3,538,200 | -4.28% | open_in_new |
| Oct 30, 2024 | ☀ PRE | $184.63 | $185.00 | $181.18 | 1,632,900 | -1.25% | open_in_new |
| Aug 01, 2024 | ☀ PRE | $215.80 | $219.44 | $210.70 | 1,892,000 | -1.17% | open_in_new |
| Apr 24, 2024 | ☀ PRE | $198.97 | $205.75 | $201.99 | 3,265,700 | +4.56% | open_in_new |
| Feb 13, 2024 | ☀ PRE | $235.64 | $237.00 | $226.65 | 3,403,600 | -7.39% | open_in_new |
| Nov 08, 2023 | ☀ PRE | $245.69 | $246.51 | $231.69 | 2,802,000 | -5.67% | open_in_new |
| Jul 25, 2023 | ☀ PRE | $279.86 | $280.42 | $270.31 | 2,485,300 | -2.42% | open_in_new |
| Apr 25, 2023 | ☀ PRE | $291.05 | $294.00 | $282.41 | 1,527,900 | -3.62% | open_in_new |
| Feb 15, 2023 | ☀ PRE | $288.00 | $288.37 | $278.98 | 1,590,300 | -3.49% | open_in_new |
| Oct 25, 2022 | ☀ PRE | $278.60 | $279.63 | $273.56 | 2,431,500 | -0.39% | open_in_new |
| Jul 20, 2022 | ☀ PRE | $217.00 | $220.70 | $207.49 | 1,991,500 | -5.8% | open_in_new |
| May 03, 2022 | ☀ PRE | $209.12 | $214.78 | $205.70 | 1,545,700 | -0.78% | open_in_new |
| Feb 03, 2022 | ☀ PRE | $215.00 | $223.14 | $220.17 | 2,005,000 | -2.13% | open_in_new |
| Oct 20, 2021 | ☀ PRE | $270.11 | $277.87 | $266.57 | 2,153,000 | -0.58% | open_in_new |
| Jul 22, 2021 | ☀ PRE | $320.04 | $330.64 | $326.36 | 1,485,600 | +1.05% | open_in_new |
| Apr 22, 2021 | ☀ PRE | $260.00 | $264.52 | $259.00 | 2,411,300 | -4.02% | open_in_new |
| Feb 03, 2021 | ☀ PRE | $269.99 | $278.55 | $263.25 | 2,521,700 | -5.21% | open_in_new |
| Oct 21, 2020 | ☀ PRE | $264.99 | $271.04 | $268.91 | 1,848,600 | +0.67% | open_in_new |
| Jul 22, 2020 | ☀ PRE | $285.36 | $286.48 | $280.81 | 1,392,100 | +0.22% | open_in_new |
| Apr 22, 2020 | ☀ PRE | $302.75 | $306.99 | $298.01 | 6,650,100 | -9.42% | open_in_new |
| Jan 30, 2020 | ☀ PRE | $288.12 | $288.12 | $277.53 | 1,601,000 | -1.77% | open_in_new |
| Jul 23, 2019 | ☀ PRE | $239.00 | $246.99 | $243.88 | 3,295,000 | +4.9% | open_in_new |
| Apr 24, 2019 | ☀ PRE | $232.02 | $232.80 | $224.40 | 4,123,900 | -2.52% | open_in_new |
| Jan 29, 2019 | ☀ PRE | $327.14 | $335.08 | $334.48 | 1,645,700 | +1.35% | open_in_new |
| Oct 23, 2018 | ☀ PRE | $315.00 | $326.50 | $316.15 | 2,414,500 | +0.19% | open_in_new |
| Jul 24, 2018 | ☀ PRE | $380.00 | $383.00 | $372.84 | 4,191,700 | +4.11% | open_in_new |
| Apr 24, 2018 | ☀ PRE | $253.71 | $266.73 | $262.15 | 3,619,800 | +1.1% | open_in_new |
| Jan 25, 2018 | ☀ PRE | $358.00 | $358.00 | $353.74 | 1,863,000 | +2.09% | open_in_new |
| Oct 24, 2017 | ☀ PRE | $319.00 | $321.11 | $315.73 | 5,849,300 | -3.9% | open_in_new |
| Jul 25, 2017 | ☀ PRE | $290.01 | $291.91 | $282.96 | 3,110,000 | -0.61% | open_in_new |
| Apr 25, 2017 | ☀ PRE | $290.00 | $291.90 | $286.89 | 3,126,300 | +3.62% | open_in_new |
| Jan 26, 2017 | ☀ PRE | $278.00 | $285.78 | $278.89 | 2,419,000 | +2.07% | open_in_new |
| Oct 26, 2016 | ☀ PRE | $294.98 | $301.34 | $296.46 | 2,660,100 | +3.66% | open_in_new |
| Jul 21, 2016 | ☀ PRE | $279.76 | $282.54 | $282.45 | 5,548,000 | +7.64% | open_in_new |
| Apr 21, 2016 | ☀ PRE | $268.84 | $280.13 | $279.60 | 3,153,600 | +5.16% | open_in_new |
| Jan 27, 2016 | ☀ PRE | $275.05 | $285.28 | $273.26 | 5,159,600 | +5.15% | open_in_new |
| Oct 21, 2015 | ☀ PRE | $285.00 | $291.01 | $276.34 | 8,374,300 | +3.96% | open_in_new |
| Jul 24, 2015 | ☀ PRE | $327.00 | $327.00 | $300.03 | 16,634,100 | -22.08% | open_in_new |
| Apr 24, 2015 | ☀ PRE | $410.00 | $410.87 | $401.71 | 6,084,400 | -6.64% | open_in_new |
| Jan 29, 2015 | ☽ POST | $351.53 | $354.61 | $353.25 | 1,707,800 | +10.17% | open_in_new |
| Oct 22, 2014 | ☀ PRE | $300.00 | $314.95 | $309.07 | 7,067,000 | -5.42% | open_in_new |
| Jul 23, 2014 | ☀ PRE | $335.00 | $343.59 | $337.60 | 4,143,000 | +11.17% | open_in_new |
| Apr 23, 2014 | ☀ PRE | $309.00 | $311.10 | $306.75 | 2,594,700 | +0.18% | open_in_new |
| Jan 29, 2014 | ☀ PRE | $299.03 | $318.42 | $305.46 | 2,773,800 | -0.06% | open_in_new |
| Oct 28, 2013 | ☀ PRE | $250.47 | $262.00 | $254.43 | 2,578,800 | +0.86% | open_in_new |
| Jul 25, 2013 | ☀ PRE | $233.53 | $233.97 | $227.48 | 2,392,700 | +0.38% | open_in_new |
| Apr 25, 2013 | ☀ PRE | $212.23 | $217.67 | $216.00 | 1,984,800 | +4.76% | open_in_new |
| Jan 28, 2013 | ☀ PRE | $149.64 | $156.94 | $149.99 | 2,993,000 | +2.59% | open_in_new |
| Oct 25, 2012 | ☀ PRE | $145.00 | $146.45 | $144.43 | 1,381,400 | +1.67% | open_in_new |
| Jul 24, 2012 | ☀ PRE | $142.52 | $142.68 | $139.48 | 1,313,300 | +0.18% | open_in_new |
| May 01, 2012 | ☀ PRE | $131.61 | $134.67 | $131.83 | 2,154,300 | -1.63% | open_in_new |
| Jan 31, 2012 | ☀ PRE | $116.00 | $119.30 | $117.95 | 2,615,600 | +1.18% | open_in_new |
| Oct 28, 2011 | ☀ PRE | $117.74 | $120.66 | $118.72 | 2,143,300 | +0.83% | open_in_new |
| Jul 26, 2011 | ☀ PRE | $104.11 | $106.00 | $105.00 | 2,369,500 | +0.97% | open_in_new |
| Apr 21, 2011 | ☀ PRE | $100.00 | $106.99 | $99.70 | 16,442,600 | +15.17% | open_in_new |
| Feb 01, 2011 | ☀ PRE | $67.75 | $68.00 | $65.49 | 4,033,400 | +0.03% | open_in_new |
| Oct 26, 2010 | ☀ PRE | $59.25 | $60.10 | $59.99 | 3,342,400 | +0.15% | open_in_new |
| Jul 20, 2010 | ☀ PRE | $52.65 | $54.13 | $54.02 | 4,645,500 | +1.58% | open_in_new |
| Apr 20, 2010 | ☀ PRE | $54.40 | $54.97 | $53.91 | 3,533,200 | -1.61% | open_in_new |
| Feb 09, 2010 | ☀ PRE | $53.88 | $54.88 | $54.09 | 2,965,000 | +2.37% | open_in_new |
| Oct 20, 2009 | ☀ PRE | $48.32 | $48.80 | $48.06 | 5,792,300 | -2.69% | open_in_new |
| Jul 16, 2009 | ☀ PRE | $47.77 | $48.30 | $47.10 | 4,984,800 | +0.92% | open_in_new |
| Apr 16, 2009 | ☽ POST | $52.28 | $52.56 | $51.49 | 3,767,400 | -2.72% | open_in_new |
| Feb 06, 2009 | ☀ PRE | $51.20 | $53.48 | $52.48 | 7,642,400 | -1.5% | open_in_new |
| Oct 21, 2008 | ☀ PRE | $47.00 | $47.15 | $43.99 | 4,794,200 | -7.37% | open_in_new |
| Jul 22, 2008 | ☀ PRE | $68.45 | $71.76 | $71.28 | 8,678,700 | +6.63% | open_in_new |
| Apr 23, 2008 | ☀ PRE | $65.98 | $66.12 | $64.51 | 3,111,400 | -0.17% | open_in_new |
| Feb 06, 2008 | ☀ PRE | $62.41 | $63.41 | $60.52 | 4,836,800 | +0% | open_in_new |
| Oct 23, 2007 | ☀ PRE | $78.25 | $79.97 | $78.93 | 6,370,800 | -1.47% | open_in_new |
| Jul 24, 2007 | ☀ PRE | $54.50 | $57.20 | $56.24 | 7,228,100 | +2.72% | open_in_new |
| May 02, 2007 | ☀ PRE | $47.81 | $48.48 | $48.02 | 7,255,900 | +0.04% | open_in_new |
| Feb 15, 2007 | ☀ PRE | $50.16 | $50.37 | $48.00 | 8,861,500 | -4.93% | open_in_new |
| Oct 31, 2006 | ☀ PRE | $46.90 | $48.50 | $47.60 | 12,915,800 | +8.4% | open_in_new |
| Jul 26, 2006 | ☀ PRE | $41.52 | $41.57 | $40.97 | 4,566,900 | -1.4% | open_in_new |
| Apr 26, 2006 | ☀ PRE | $43.96 | $44.59 | $44.07 | 5,554,800 | -0.02% | open_in_new |
| Feb 15, 2006 | ☽ POST | $44.39 | $46.39 | $45.72 | 5,522,200 | +3.52% | open_in_new |
| Oct 26, 2005 | ☽ POST | $40.21 | $40.60 | $40.01 | 3,178,300 | -4.15% | open_in_new |
| Jul 26, 2005 | ☽ POST | $38.48 | $39.47 | $38.82 | 5,011,800 | +1.7% | open_in_new |
| Apr 27, 2005 | ☽ POST | $36.30 | $36.45 | $35.84 | 3,435,000 | +0.39% | open_in_new |
| Mar 17, 2005 | ☽ POST | $37.47 | $38.89 | $38.16 | 10,854,300 | +0.26% | open_in_new |
| Oct 27, 2004 | ☽ POST | $55.92 | $58.65 | $58.52 | 4,565,100 | +1.86% | open_in_new |
event
Earnings Count
86
Total earnings in dataset
trending_up
Avg Abs. Movement
±3.25%
Avg % price change on earnings
SEC Filing Types
Recent SEC Filings
10 most recent| Form | Date Filed | View on EDGAR |
|---|---|---|
| 8-K/A | 20260610 | open_in_new SEC.gov |
| 8-K | 20260610 | open_in_new SEC.gov |
| SCHEDULE 13G/A | 20260605 | open_in_new SEC.gov |
| 8-K | 20260514 | open_in_new SEC.gov |
| SC TO-T/A | 20260514 | open_in_new SEC.gov |
| SCHEDULE 13D/A | 20260514 | open_in_new SEC.gov |
| SC TO-T/A | 20260506 | open_in_new SEC.gov |
| SCHEDULE 13G/A | 20260506 | open_in_new SEC.gov |
| 4 | 20260505 | open_in_new SEC.gov |
| 10-Q | 20260429 | open_in_new SEC.gov |
Frequently asked about BIIB earnings
When does Biogen report earnings next? expand_more
Biogen (BIIB)'s next earnings date is estimated for 2026-07-17. This is a prediction based on its historical quarterly reporting pattern, not a company-confirmed date.
How much does BIIB stock move after earnings? expand_more
Over 86 reports, BIIB has moved an average of ±3.25% the session after earnings, closing higher 57.0% of the time.
What was BIIB's biggest post-earnings move? expand_more
BIIB's largest post-earnings gain on record was +15.17% on Apr 21, 2011, and its largest decline was -22.08% on Jul 24, 2015.
Where can I find Biogen's SEC filings? expand_more
All of Biogen's SEC filings — 10-K, 10-Q, 8-K and more — are listed in the SEC filings section on this page, each linking to the original document on SEC.gov.
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