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BIIB position history

The shares of Biogen (BIIB) that Krensavage Asset Management LLC reported in each quarter’s 13F.

Equity, COM

Shares held by quarter

New Add Reduce Exit

  1. 2021 Q3: 103,202 shares, $29M, 9.2% of portfolio
  2. 2021 Q4: 103,053 shares, $25M, 8.6% of portfolio, Reduce −0.1%
  3. 2022 Q1: 111,353 shares, $23M, 8.1% of portfolio, Add +8.1%
  4. 2022 Q2: 117,248 shares, $24M, 7.9% of portfolio, Add +5.3%
  5. 2022 Q3: 184,648 shares, $49M, 15.7% of portfolio, Add +57.5%
  6. 2022 Q4: 177,004 shares, $49M, 15.1% of portfolio, Reduce −4.1%
  7. 2023 Q1: 177,126 shares, $49M, 15.0% of portfolio, Add +0.1%
  8. 2023 Q2: 176,826 shares, $50M, 16.0% of portfolio, Reduce −0.2%
  9. 2023 Q3: 160,480 shares, $41M, 15.2% of portfolio, Reduce −9.2%
  10. 2023 Q4: 160,480 shares, $42M, 14.7% of portfolio
  11. 2024 Q1: 134,068 shares, $29M, 12.8% of portfolio, Reduce −16.5%
  12. 2024 Q2: 123,785 shares, $29M, 13.2% of portfolio, Reduce −7.7%
  13. 2024 Q3: 113,502 shares, $22M, 12.3% of portfolio, Reduce −8.3%
  14. 2024 Q4: 222,425 shares, $33M, 19.7% of portfolio, Add +96.0%
  15. 2025 Q1: not held, Exit
  16. 2025 Q2: not held
  17. 2025 Q3: 10,000 shares, $1.4M, 0.60% of portfolio, New
  18. 2025 Q4: 10,000 shares, $1.8M, 0.62% of portfolio
  19. 2026 Q1: 20,000 shares, $3.7M, 1.4% of portfolio, Add +100.0%
  20. 2026 Q2: 20,000 shares, $4.3M, 1.6% of portfolio
Holdings date Value % of holdings Shares Filing date All 13F holders