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BIIB · Biogen Inc. · Fails to Deliver

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$219.88 -2.94 (-1.32%) At close · Oct 2
Market Cap
$33.52B
Shares
147.64M
Volume · Oct 2 780.43K Avg daily vol (3M) 1.08M

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
2026-09-14 416 $217.15 $90,334
2026-09-11 386 $215.43 $83,156
2026-09-08 7,185 $220.83 $1,586,664
2026-09-04 17,209 $224.51 $3,863,593
2026-09-02 35 $216.04 $7,561
2026-08-28 991 $221.50 $219,507
2026-08-25 3,091 $218.12 $674,209
2026-08-24 93 $216.78 $20,161
2026-08-21 145 $214.35 $31,081
2026-08-07 135 $206.28 $27,848
2026-08-03 2,347 $202.95 $476,324
2026-07-17 8 $208.92 $1,671
2026-07-16 63 $197.24 $12,426
Showing 1–13 of 13 settlements
Key facts CIK 875045 CUSIP 09062X103 13F (30d) 26 filings 21 filers Visit website Investor relations