Sionna Therapeutics, Inc. · NASDAQ:SION

Ra Capital Management, L.P. reported a 22.60% stake in Sionna Therapeutics, Inc. (Schedule 13D/A)

Event Nov 5, 2025 · Filed Nov 7, 2025

Ra Capital Management, L.P. reported a 22.60% stake in Sionna Therapeutics, Inc., 10,071,712 shares, with active intent on Nov 5, 2025. Filed Nov 7, 2025 (Schedule 13D/A).

Stake
22.60%
Shares
10,071,712
Intent
Active
What changed
Stake changed
Filed together
5 holders

The filing in full

HolderStakeShares
RA Capital Management, L.P.22.60%10,071,712
Peter Kolchinsky22.60%10,071,712
Rajeev Shah22.60%10,071,712
RA Capital Healthcare Fund, L.P.15.50%6,905,625
RA Capital Nexus Fund III, L.P.5.00%2,240,708

Source

View original at SEC

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