Sio Capital Management’s Regeneron Pharmaceuticals REGN Stock Holding History
Bought
Maintained
Sold
Other funds holding REGN
Sio Capital Management's REGN Position: Q2 2026 in Review
Sio Capital Management opened a new position in Regeneron Pharmaceuticals (REGN) in Q2 2026: 18,000 shares worth $11.2M. The stake represents 1.86% of the portfolio and ranks #21 among its holdings. This is a return to the name: Sio Capital Management previously reported a position in REGN as recently as Q3 2023.
Sio Capital Management first reported a position in REGN in Q3 2019 and has held it in 4 quarters since. The position peaked at $12.6M in Q3 2023. 1,340 funds tracked by Wall St. Rank hold REGN as of Q2 2026.
- Sio Capital Management held 18,000 shares of Regeneron Pharmaceuticals worth $11.2M as of Q2 2026.
- Regeneron Pharmaceuticals was a new Sio Capital Management position in Q2 2026.
- Regeneron Pharmaceuticals made up 1.86% of Sio Capital Management's portfolio in Q2 2026, its #21 holding.
- Sio Capital Management first reported a position in Regeneron Pharmaceuticals in Q3 2019 and has held it in 4 quarters since.
- Sio Capital Management's Regeneron Pharmaceuticals position peaked at $12.6M in Q3 2023.
- 1,340 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q2 2026.
Based on Sio Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.