CSS LLC
- SEC CIK
- 0001103646
- Latest filing
- Aug 14, 2026
REGN holding history
Regeneron Pharmaceuticals, Inc. in every 13F filed by CSS LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
REGN overviewAll 13F holders of REGNFull Q2 2026 holdings
- Shares (Q2 2026)
- 1,820
- Value
- $1.13M
- % of portfolio
- 0.1%
- Quarters held
- 12
- Since Q4 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,820 | $1.13M | 0.1% | +650+55.6% | Added | Holders |
| Q1 2026 | 1,170 | $904.0K | 0.1% | +830+244.1% | Added | Holders |
| Q4 2025 | 340 | $262.4K | <0.1% | +340 | New | Holders |
| Q3 2025 | 0 | $0 | 0.0% | −720−100.0% | Sold out | Holders |
| Q2 2025 | 720 | $378.0K | <0.1% | +40+5.9% | Added | Holders |
| Q1 2025 | 680 | $431.3K | <0.1% | +70+11.5% | Added | Holders |
| Q4 2024 | 610 | $434.5K | <0.1% | +610 | New | Holders |
| Q2 2023 | 0 | $0 | 0.0% | −300−100.0% | Sold out | Holders |
| Q1 2023 | 300 | $246.5K | <0.1% | −200−40.0% | Reduced | Holders |
| Q4 2022 | 500 | $360.7K | <0.1% | −100−16.7% | Reduced | Holders |
| Q3 2022 | 600 | $413.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2022 | 600 | $355.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2022 | 600 | $419.0K | <0.1% | −200−25.0% | Reduced | Holders |
| Q4 2021 | 800 | $505.0K | <0.1% | +800 | New | Holders |