Sienna Gestion
- SEC CIK
- 0002021242
- Latest filing
- Aug 13, 2026
REGN holding history
Regeneron Pharmaceuticals, Inc. in every 13F filed by Sienna Gestion, 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)
- 764
- Value
- $488.1K
- % of portfolio
- <0.1%
- Quarters held
- 10
- Since Q1 2024
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 764 | $488.1K | <0.1% | −735−49.0% | Reduced | Holders |
| Q1 2026 | 1,499 | $1.13M | 0.1% | 00.0% | Unchanged | Holders |
| Q4 2025 | 1,499 | $1.15M | 0.1% | +1,004+202.8% | Added | Holders |
| Q3 2025 | 495 | $253.8K | <0.1% | −9,627−95.1% | Reduced | Holders |
| Q2 2025 | 10,122 | $4.85M | 0.3% | +957+10.4% | Added | Holders |
| Q1 2025 | 9,165 | $5.65M | 0.5% | −566−5.8% | Reduced | Holders |
| Q4 2024 | 9,731 | $6.93M | 0.5% | 00.0% | Unchanged | Holders |
| Q3 2024 | 9,731 | $10.2M | 0.7% | +1,932+24.8% | Added | Holders |
| Q2 2024 | 7,799 | $8.19M | 0.7% | 00.0% | Unchanged | Holders |
| Q1 2024 | 7,799 | $7.51M | 0.7% | – | No prior filing | Holders |