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SPRO · Spero Therapeutics, Inc.

$1.18 +0.02 (+1.72%)
Market Cap
$67.17M
Shares
57.90M

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
2026-06-30 47,602 $2.26 $107,581
2026-06-29 730 $2.26 $1,650
2026-06-24 1,011 $2.15 $2,174
2026-06-22 9,572 $2.28 $21,824
2026-06-18 3,755 $2.11 $7,923
2026-06-17 20,293 $2.77 $56,212
2026-06-16 5,631 $2.91 $16,386
2026-06-15 23,494 $2.85 $66,958
2026-06-12 5,678 $2.70 $15,331
2026-06-11 15,911 $2.54 $40,414
2026-06-08 11,224 $2.82 $31,652
2026-05-29 16,734 $2.90 $48,529
2026-05-28 899 $2.93 $2,634
2026-05-27 3,886 $2.86 $11,114
2026-05-19 36,410 $2.58 $93,938
2026-05-18 300 $2.79 $837
2026-05-15 300 $2.76 $828
Showing 1–17 of 17 settlements
Key facts CIK 1701108 CUSIP 84833T103 13F (30d) 6 filings 6 filers Visit website Investor relations