MOVER · WED OCT 7 2026

Why CRBU fell 48.9% on Oct 7 2026: program discontinuation

CRBU-48.9%on Wed Oct 7 2026

Caribou Biosciences, Inc. Common Stock was down 48.9% on the day at $0.5798, ranked #3 on 94.2× its usual five-minute volume, when TapeRank recorded this drop at 09:55 ET during regular hours.

THE DAY ON THE LIST · 1 EVENT

  1. 09:55 ET
    MOVER · REGULAR

    $0.5798 · ▼ 48.9% ON THE DAY · 94.2× 5M RVOL · RANK #3

    JUSTIFIEDCONFIDENCE5/5

    CRBU is down 49.3% after announcing a strategic-alternatives review, discontinuation of both lead CAR-T programs, and a substantial workforce reduction. The downgrades and $1 price-target cuts reinforce the repricing, while the restructuring indicates the company is shifting toward asset monetization or wind-down.

    WHYA roughly 49% drop is large but proportionate to abandoning two clinical programs and restructuring the business, especially after the stock already fell 35% after hours.
    ANALYZED 09:55 ET · <1 MIN AGO · OPENAI/GPT-5.6-LUNA
    THE ROW AND SESSION LEVELS AT 09:55 ET
    LAST0.5798
    DAY▼ 48.9%
    5 MIN▼ 2.87%
    5M RVOL94.2×
    5M $VOL$505K
    FLOAT*107.2M
    RANK#3
    SESSIONREGULAR
    VWAP0.6194
    HOD0.7399
    LOD0.5460
    OR HIGH0.6551
    OR LOW0.5460
    PREV CLOSE1.14
    PM HIGH0.7399
    PM LOW0.5589
    GAP▼ 43.96%

    * FLOAT IS SHARES OUTSTANDING; TRUE FREE FLOAT IS NOT AVAILABLE

THE SESSION

  • 09:30 ETOpened at $0.6360, -44.0% on the previous close of $1.14
  • 09:33 ETRegular-session low, $0.5460
  • 10:55 ETRegular-session high, $0.6700
  • 15:59 ETLast trade of the regular session, $0.6177, -45.6% on the previous close of $1.14
  • Volume: 33.6M shares in regular hours, 3.1M before the open

CRBU opened at $0.6360 after Caribou Biosciences announced a strategic-alternatives review, discontinued its two lead CAR-T programs and cut its workforce; TapeRank read the news as justifying the move. The stock fell to $0.5460 by 09:33 ET, and TapeRank later ranked it #3 at $0.5798, down 48.9%, while downgrades and $1 price-target cuts reinforced the repricing. It recovered to a session high of $0.6700 at 10:55 ET before ending regular trading at $0.6177, still 45.6% below the previous close; there were no halts during the session.

WRITTEN THU OCT 15 2026 18:02 ET BY OPENAI/GPT-5.6-LUNA FROM THE FACTS ON THIS PAGE

FILINGS AND NEWS · 24H BEFORE THE MOVE

On the tape right now

WHERE THE LIST STOODWED NOV 4 2026 · 13:49 ETRECORDED LIVE · 742 QUALIFY

01
ECGSURGING 0:05
79.71
▼ 29.3%
▼ 1.41%
41.0×
FAD
$6.2M
51.1M*
STRETCHED
02
CAVASURGING 0:00
64.78
▲ 7.4%
▲ 1.30%
9.3×
ORBHODVWH
$11.6M
116.8M*
UNEXPLAINED
03
URGNSURGING 0:00
29.16
▼ 15.2%
▼ 1.29%
15.6×
FAD
$1.4M
48.9M*
JUSTIFIED
04
MPTISURGING 0:00
64.15
▼ 1.5%
▲ 0.96%
23.8×
VWH
$637K
4.3M*
UNEXPLAINED
05
LSPDSURGING 0:00
11.52
▲ 4.9%
▼ 1.24%
16.5×
ORB
$426K
133.3M*
UNEXPLAINED
06
CRCTSURGING 0:00
8.90
▲ 49.2%
▼ 0.72%
15.1×
GAPORBVWHEXT
$395K
54.7M*
STRETCHED
07
BROSSURGING 0:00
43.97
▲ 0.9%
▼ 0.91%
4.0×
FAD
$4.3M
137.9M*
UNEXPLAINED
08
LMRICOOLING 1:35
12.85
▲ 14.5%
▲ 1.06%
132×
ORBHODVWH
$1.7M
—
UNEXPLAINED
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