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Sionna Therapeutics, Inc.

Public company
Headquarters
WALTHAM, Massachusetts
Ticker
SION
CIK
0002036042

WARN notices since 2024

0
None on record

Workers affected since 2024

0
Across 0 notices

Executive changes, last 12 months

4
3 appointments, 1 departure

Last event

Sep 14, 2026
Executive departureChief Business Officer departs: Caroline Stark Beer, M.B.A.

Workers affected over time

Cumulative workers in WARN notices since 2024

Not enough notices to chart yet.

Leadership

Role and personSinceChange
Chief Business OfficerCaroline Stark Beer, M.B.A.Sep 14, 2026Departed
CMOCharlotte McKeeSep 14, 2026Appointed
CFOElena RidloffSep 14, 2026Appointed
CLOJennifer FitzpatrickSep 14, 2026Appointed

Related companies

Same industry and state, with recent events.

  1. Executive departure

    Chief Business Officer departs: Caroline Stark Beer, M.B.A.

    Caroline Stark Beer, M.B.A., Chief Business Officer of Sionna Therapeutics, Inc., leaves the role, effective September 15, 2026. The company reported the change in an 8-K that cites Item 5.02.

    Role: Chief Business Officer

    Source: SEC 8-K, filed Sep 14, 2026

  2. Executive appointment

    CMO appointed: Charlotte McKee

    Charlotte McKee was named Chief Medical Officer of Sionna Therapeutics, Inc., effective September 16, 2026. The company reported the change in an 8-K that cites Item 5.02.

    Role: Chief Medical Officer

    Source: SEC 8-K, filed Sep 14, 2026

  3. Executive appointment

    CFO appointed: Elena Ridloff

    Elena Ridloff was named Chief Financial Officer of Sionna Therapeutics, Inc., effective September 16, 2026. The company reported the change in an 8-K that cites Item 5.02.

    Role: Chief Financial Officer

    Source: SEC 8-K, filed Sep 14, 2026

  4. Executive appointment

    CLO appointed: Jennifer Fitzpatrick

    Jennifer Fitzpatrick was named Chief Legal Officer of Sionna Therapeutics, Inc., effective September 16, 2026. The company reported the change in an 8-K that cites Item 5.02.

    Role: Chief Legal Officer

    Source: SEC 8-K, filed Sep 14, 2026

Last verified Nov 8, 2026