Who owns SION? 13F holders and whale ownership
SION is tracked across public portfolios in Whale Analyzer. This page answers who owns SION, which top funds are buying SION, aggregate disclosed value, and recent position changes based on public data.
Open interactive stock dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Peter Kolchinsky 13F portfolio RA Capital Management holdings | $397.1M | 9.9M | Held |
| Samuel Isaly 13F portfolio OrbiMed Advisors holdings | $141.5M | 3.5M | Reduced |
| Andreas Halvorsen 13F portfolio Viking Global Investors holdings | $128.1M | 3.2M | Held |
| Joseph Edelman 13F portfolio Perceptive Advisors holdings | $26.4M | 658.4K | Reduced |
| Baker Bros. Advisors 13F portfolio Baker Bros. Advisors holdings | $16.0M | 400.0K | Held |
How to read this page
Values are reported public positions from tracked investors and institutions. They are not real-time ownership totals for the company.
Related stock holder pages
- ASND whale holders — ASCENDIS PHARMA A/S - ADR
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- RYTM whale holders — RHYTHM PHARMACEUTICALS INC
- TYRA whale holders — TYRA BIOSCIENCES INC
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- NUVL whale holders — NUVALENT INC-A
- DNTH whale holders — DIANTHUS THERAPEUTICS INC
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Frequently asked questions
Who owns SION stock?
Whale Analyzer tracks 5 public institutional holders of SION with a combined reported value of $709.2M. See the holder table above for the largest tracked positions.
Which top funds are buying SION?
Check the "Change" column in the holders table above. "New" means a fresh position was initiated, "Added" means an existing position was increased, and "Reduced" or "Sold" indicates trimming.
What does 13F ownership mean for SION?
Use the interactive SION dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.