SION

Sionna Therapeutics, Inc.

Company with tickers: SION

CIK
2036042
CUSIP
829401108
Shares Outstanding
44,998,073

Short Interest History

Settlement Date Current Position Previous Position Change Days to Cover
2026-03-31 3,756,705 3,544,166 +212,539 11.29
2026-03-13 3,544,166 3,350,255 +193,911 12.34
2026-02-27 3,350,255 3,064,857 +285,398 23.36
2026-02-13 3,064,857 3,143,560 -78,703 7.53
2026-01-30 3,143,560 3,053,667 +89,893 13.55
2026-01-15 3,053,667 3,258,091 -204,424 9.78
2025-12-31 3,258,091 2,876,610 +381,481 8.47
2025-12-15 2,876,610 2,862,557 +14,053 9.94
2025-11-28 2,862,557 2,973,430 -110,873 10.75
2025-11-14 2,973,430 2,965,776 +7,654 15.27
2025-10-31 2,965,776 3,372,058 -406,282 8.13
2025-10-15 3,372,058 3,931,123 -559,065 11.25
2025-09-30 3,931,123 3,771,820 +159,303 11.89
2025-09-15 3,771,820 3,475,743 +296,077 12.31
2025-08-29 3,475,743 3,600,368 -124,625 17.59
2025-08-15 3,600,368 3,679,050 -78,682 20.61
2025-07-31 3,679,050 3,530,059 +148,991 25.39
2025-07-15 3,530,059 3,631,953 -101,894 22.13
2025-06-30 3,631,953 2,827,394 +804,559 10.22
2025-06-13 2,827,394 2,871,885 -44,491 20.41
2025-05-30 2,871,885 2,587,312 +284,573 24.39
2025-05-15 2,587,312 2,502,341 +84,971 14.88
2025-04-30 2,502,341 2,291,588 +210,753 23.14
2025-04-15 2,291,588 2,280,720 +10,868 12.69