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Biogen BIIB Unrealized Losses on Investments (Before Tax)
Unrealized Losses on Investments (Before Tax) at other companies
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Where this comes from
Reported directly by Biogen in its filing.
Tagged under the XBRL concept us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax.
The source filing: Biogen’s 10-Q, filed April 29, 2026.
- Filed
- Apr 29, 2026, 6:40 AM EDT
- Fiscal quarter
- Q1 FY2026
- Calendar quarter
- Q1 2026
- Accession
- 0000875045-26-000045
| (In millions) | Amortized Cost | Gross Unrealized Gains | Gross Unrealized Losses | Fair Value |
|---|---|---|---|---|
| Current | 482.6 | — | (0.1) | 482.5 |
| Non-current | 64.8 | — | — | 64.8 |
| Mortgage and other asset backed securities: | ||||
| Non-current | 84.2 | — | (0.1) | 84.1 |
| Total marketable debt securities | $1,367.6 | — | $(2.0) | $1,365.6 |
| Marketable equity securities | ||||
| Marketable equity securities, non-current | $227.8 | — | $(90.4) | $137.4 |
| Total marketable equity securities | $227.8 | — | $(90.4) | $137.4 |
Item 1. Financial Statements (unaudited)
FAQ
- What is Biogen's unrealized losses on investments (before tax)?
- Biogen (BIIB) reported unrealized losses on investments (before tax) of $2M in Q1 2026.
- What is the long-term trend for Biogen's unrealized losses on investments (before tax)?
- Over 3 years (2020 to 2025), Biogen's unrealized losses on investments (before tax) has grown at a -100.0% compound annual growth rate (CAGR), from $400K to $0.
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