Red Tortoise LLC
- SEC CIK
- 0001910488
- Latest filing
- Apr 21, 2026
BIIB holding history
Biogen Inc. in every 13F filed by Red Tortoise LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
BIIB overviewAll 13F holders of BIIBFull Q1 2026 holdings
- Shares (Q1 2026)
- 74
- Value
- $13.6K
- % of portfolio
- <0.1%
- Quarters held
- 9
- Since Q4 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q1 2026 | 74 | $13.6K | <0.1% | −6−7.5% | Reduced | Holders |
| Q4 2025 | 80 | $14.1K | <0.1% | −9−10.1% | Reduced | Holders |
| Q3 2025 | 89 | $12.5K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2025 | 89 | $11.2K | <0.1% | +76+584.6% | Added | Holders |
| Q1 2025 | 13 | $1.78K | <0.1% | −35−72.9% | Reduced | Holders |
| Q4 2024 | 48 | $7.34K | <0.1% | +20+71.4% | Added | Holders |
| Q3 2024 | 28 | $5.43K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2024 | 28 | $6.49K | <0.1% | +28 | New | Holders |
| Q1 2023 | 0 | $0 | 0.0% | −7−100.0% | Sold out | Holders |
| Q4 2022 | 7 | $1.94K | <0.1% | – | No prior filing | Holders |