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SION · Sionna Therapeutics, Inc.

$46.71 +1.90 (+4.24%)
Market Cap
$2.02B
Shares
45.15M

Fails to deliver — shares from a trade that were not delivered to the buyer by the settlement date — published by the SEC twice a month. Persistent fails can reflect settlement problems or naked short selling.

Fails to Deliver History

Settlement Date Quantity Price Value
2026-07-07 13 $43.12 $561
2026-07-06 3,753 $43.99 $165,094
2026-07-02 7,391 $41.64 $307,761
2026-06-30 9,681 $42.97 $415,993
2026-06-29 120,409 $42.18 $5,078,852
2026-06-25 1,101 $41.09 $45,240
2026-06-24 1,886 $39.87 $75,195
2026-06-23 90 $38.83 $3,495
2026-06-22 66 $37.30 $2,462
2026-06-15 353 $35.92 $12,680
2026-06-12 186 $36.05 $6,705
2026-06-10 24,749 $33.69 $833,794
2026-05-29 34,888 $42.80 $1,493,206
2026-05-27 709 $42.88 $30,402
2026-05-26 110 $41.13 $4,524
2026-05-19 4 $39.24 $157
2026-05-18 70 $40.22 $2,815
2026-05-13 174 $40.94 $7,124
2026-05-12 1 $45.95 $46
2026-05-08 3,243 $43.31 $140,454
2026-05-07 198 $43.29 $8,571
2026-05-04 1,980 $39.15 $77,517
2026-05-01 66 $38.70 $2,554
Showing 1–23 of 23 settlements
Key facts CIK 2036042 CUSIP 829401108 13F (30d) 15 filings 15 filers Visit website Investor relations