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Sionna Therapeutics, Inc. (SION): insider buying, hedge funds & Congress trades

Sionna Therapeutics, Inc. (SION): 7 insider purchases in the last two years.

Insider buying

FiledInsiderSharesPriceValueType
Jul 1, 2025Coulter James G
TenPercentOwner
60,000$15.84$950.4Kno history
Feb 12, 2025Tpg Gp A, Llc
TenPercentOwner
1,125,000$18.00$20.2Mno history
Feb 10, 2025Booth Bruce
Director
60,000$18.00$1.1Mno history
Feb 10, 2025Thompson Peter A.
Director
550,000$18.00$9.9Mno history
Feb 10, 2025Atlas Venture Fund XI, L.P.
TenPercentOwner
60,000$18.00$1.1Mno history
Feb 10, 2025OrbiMed Capital GP VIII LLC
Director
550,000$18.00$9.9Mno history
Feb 10, 2025Ra Capital Management, L.P.
Director, TenPercentOwner
1,125,000$18.00$20.2Mno history

Open-market purchases from SEC Form 4. "Opportunistic" = this insider trades every year but not on a fixed schedule (Cohen, Malloy & Pomorski); "routine" buys carry little information.

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