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ALT · Altimmune, Inc. · Fails to Deliver

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$2.12 -0.05 (-2.30%) At close · Oct 23
Russell 2000 member Rebalance outlook locked
Market Cap
$412.38M
Shares
194.52M
Volume · Oct 23 2.6M Avg daily vol (3M) 4.32M

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.

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1M 3M 6M 1Y 5Y All

Fails to Deliver History

Settlement Date Quantity Price Value
2026-09-28 3,623 $3.06 $11,086
2026-09-23 1,957 $3.41 $6,673
2026-09-14 217 $3.27 $710
2026-09-11 1,152 $3.29 $3,790
2026-09-03 17 $3.28 $56
2026-08-24 61,991 $3.11 $192,792
2026-08-12 10,537 $3.00 $31,611
2026-08-06 6,228 $3.03 $18,871
2026-08-04 17,013 $3.00 $51,039
2026-08-03 19,165 $2.84 $54,429
2026-07-31 2,773 $2.98 $8,264
Showing 1–11 of 11 settlements
Key facts CIK 1326190 CUSIP 02155H200 13F (30d) 23 filings 23 filers Visit website Investor relations