SION ranks #3637 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
SION is a disclosed holding of Andreas Halvorsen (Viking Global Investors), one of the tracked superinvestors on AlphaSMO — it makes up 0.4% of that fund's own 13F portfolio.
SION is a top-conviction position for Enavate Sciences GP, LLC — at 31.6% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in SION belongs to Ra Capital Management, L.p., but the position matters far more to Enavate Sciences GP, LLC, who has 31.6% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
State Street has added to its SION position for two straight quarters, increasing it by $16.4M to reach $44.9M today.
Orbimed Advisors LLC has trimmed its SION position for two straight quarters, cutting it by $34.1M while still holding $112.4M.
SION is down 1.3% today, but institutions show net buying of $161.6M this quarter — a divergence between today's price move and the underlying institutional flow.