Which closed-end funds own Biogen Inc?
5 active closed-end funds report this security in their latest N-PORT filing, with a combined reported value of $59.8M. Security type: common equity. Country: United States. CUSIP 09062X103 · ISIN US09062X1037 · ticker BIIB.
Holdings are historical filings (report dates May 29, 2026 – Jun 30, 2026; N-PORT becomes public ~60 days after quarter end), not live positions. Weights are percent of each fund’s net assets. Different instruments of one issuer (shares, bonds, preferreds) are separate securities — see related securities below.
Funds holding this security
| Fund | Category | Weight | Value (USD) | Balance | Fund net assets | Prem/disc | Report date |
|---|---|---|---|---|---|---|---|
| BMEZ BlackRock Health Sciences Term Trust | Healthcare | 2.75% | $29.7M | 137,487 sh | $1.1B | NAV unavailable | Jun 30, 2026 |
| BME BlackRock Health Sciences Trust | Healthcare | 1.20% | $6.9M | 31,869 sh | $573M | 3.9% discount | Jun 30, 2026 |
| ADX Adams Diversified Equity Fund | U.S. Equity | 0.66% | $21.7M | 100,300 sh | $3.3B | 3.0% discount | Jun 30, 2026 |
| GAB Gabelli Equity Trust | U.S. Equity | 0.06% | $1.5M | 7,000 sh | $2.4B | 6.5% discount | Jun 30, 2026 |
| GOF Guggenheim Strategic Opportunities Fund | Multi-Asset | 0.00% | $18.8K | 96 sh | $2.8B | 12.2% discount | May 29, 2026 |
5 positions. Source: SEC Form N-PORT via market-data vendor re-serve. Funds without an N-PORT on file cannot appear here.
Also listed in filings as: Biogen Inc; Biogen Inc..
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