Operating Expenses

R&D

Biogen R&D increased by 5.8% to $539.00M in Q1 2026 compared to the prior quarter. Year-over-year, this metric grew by 24.2%, from $434.10M to $539.00M. Over 4 years (FY 2021 to FY 2025), R&D shows a downward trend with a -8.2% CAGR.

Analysis

StatementIncome Statement
SectionOperating Expenses
CategoryGrowth
SignalContext dependent
VolatilityModerate
First reportedQ1 2014
Last reportedQ1 2026

How to read this metric

Higher spending signals a commitment to innovation and future product launches, whereas significant cuts may indicate a shift toward short-term profitability.

Detailed definition

Research and development expenses represent the costs incurred to discover new products, improve existing technologies,...

Peer comparison

Highly comparable across pharmaceutical and medical device peers, where R&D intensity is a key metric for long-term valuation.

Metric ID: research_and_development

Historical Data

20 periods
 Q2 '21Q3 '21Q4 '21Q1 '22Q2 '22Q3 '22Q4 '22Q1 '23Q2 '23Q3 '23Q4 '23Q1 '24Q2 '24Q3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26
Value$585.10M$702.40M$699.50M$551.70M$528.60M$549.20M$601.60M$570.60M$584.20M$736.30M$554.30M$445.40M$505.40M$516.20M$513.30M$434.10M$399.00M$436.10M$509.40M$539.00M
QoQ Change+20.0%-0.4%-21.1%-4.2%+3.9%+9.5%-5.2%+2.4%+26.0%-24.7%-19.6%+13.5%+2.1%-0.6%-15.4%-8.1%+9.3%+16.8%+5.8%
YoY Change-9.7%-21.8%-14.0%+3.4%+10.5%+34.1%-7.9%-21.9%-13.5%-29.9%-7.4%-2.5%-21.1%-15.5%-0.8%+24.2%
Range$399.00M$736.30M
CAGR-1.7%
Avg YoY Growth-5.9%
Median YoY Growth-8.8%
Current Streak3 quarters growth

Product Breakdown

View all
SegmentQ4 '22Q2 '23Q3 '23Q4 '23Q1 '24Q2 '24Q3 '24Q4 '24
QALSODY$4.00M$4.00M$4.00M$5.00M$5.00M$5.00M$5.00M
ADUHELM$35.00M
Mosunetuzumab$7.10M$7.10M$7.10M
QALSODY EU$5.00M$5.00M
QALSODY Japan$2.50M$2.50M
SOD1$4.25M$4.00M$4.00M
Total$601.60M$584.20M$736.30M$554.30M$445.40M$505.40M$516.20M$513.30M

Mosunetuzumab, QALSODY, QALSODY EU, QALSODY Japan, SOD1 are derived from annual filings.

QALSODY was previously reported and has since been discontinued or reclassified. Only currently active segments are shown in the chart.

Business Segments

View all
SegmentQ2 '24Q3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26
Reportable Segment$176.40M$221.50M$186.90M$178.50M$168.20M$167.10M$179.10M$172.80M
Total$505.40M$516.20M$513.30M$434.10M$399.00M$436.10M$509.40M$539.00M

Frequently Asked Questions

What is Biogen's r&d?
Biogen (BIIB) reported r&d of $539.00M in Q1 2026.
How has Biogen's r&d changed year-over-year?
Biogen's r&d increased by 24.2% year-over-year, from $434.10M to $539.00M.
What is the long-term trend for Biogen's r&d?
Over 4 years (2021 to 2025), Biogen's r&d has grown at a -8.2% compound annual growth rate (CAGR), from $2.50B to $1.78B.
What does r&d mean?
The money spent on creating new products or improving existing ones to drive future growth.