Joel Isaacson & Co., LLC
- SEC CIK
- 0001599330
- Latest filing
- Aug 4, 2026
BIIB holding history
Biogen Inc. in every 13F filed by Joel Isaacson & Co., 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 Q2 2026 holdings
- Shares (Q2 2026)
- 1,614
- Value
- $348.7K
- % of portfolio
- <0.1%
- Quarters held
- 12
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,614 | $348.7K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2026 | 1,614 | $295.9K | <0.1% | +50+3.2% | Added | Holders |
| Q4 2025 | 1,564 | $275.2K | <0.1% | −100−6.0% | Reduced | Holders |
| Q3 2025 | 1,664 | $233.1K | <0.1% | +1,664 | New | Holders |
| Q3 2023 | 0 | $0 | 0.0% | −744−100.0% | Sold out | Holders |
| Q2 2023 | 744 | $211.9K | <0.1% | −124−14.3% | Reduced | Holders |
| Q1 2023 | 868 | $241.3K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2022 | 868 | $240.4K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2022 | 868 | $232.0K | <0.1% | +868 | New | Holders |
| Q1 2022 | 0 | $0 | 0.0% | −878−100.0% | Sold out | Holders |
| Q4 2021 | 878 | $211.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2021 | 878 | $248.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2021 | 878 | $304.0K | <0.1% | +100+12.9% | Added | Holders |
| Q1 2021 | 778 | $218.0K | <0.1% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.