Biogen Total increased by 10.4% to $1.37B in Q1 2026 compared to the prior quarter. Over 3 years (FY 2020 to FY 2025), Total shows a downward trend with a -15.4% CAGR.
Changes reflect shifts in the cost basis of the investment portfolio due to purchasing or selling activity.
The amortized cost basis of debt securities classified as available-for-sale, excluding primary categories. This represe...
Commonly reported by insurers with large fixed-income portfolios.
other_available_for_sale_debt_securities_amortized_cost_basis| Q2 '21 | Q3 '21 | Q4 '21 | Q1 '22 | Q2 '22 | Q3 '22 | Q4 '22 | Q1 '23 | Q2 '23 | Q3 '25 | Q4 '25 | Q1 '26 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Value | $2.22B | $2.38B | $2.44B | $3.02B | $3.28B | $2.12B | $2.20B | $3.13B | $4.69B | $97.60M | $1.24B | $1.37B |
| QoQ Change | — | +7.1% | +2.3% | +23.9% | +8.6% | -35.3% | +3.6% | +42.5% | +49.6% | -97.9% | >999% | +10.4% |
| YoY Change | — | — | — | — | +47.5% | -10.9% | -9.7% | +3.8% | +42.9% | — | — | — |