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MOVER · WED OCT 28 2026

Why SLS fell 20.1% on Oct 28 2026: phase 3 milestone

SLS-20.1%on Wed Oct 28 2026

SELLAS Life Sciences Group, Inc. Common Stock was down 20.1% on the day at $9.72, ranked #3 on 10.2× its usual five-minute volume, when TapeRank recorded this drop at 09:53 ET during regular hours.

THE DAY ON THE LIST · 1 EVENT

  1. 09:53 ET
    MOVER · REGULAR

    $9.72 · ▼ 20.1% ON THE DAY · 10.2× 5M RVOL · RANK #3

    STRETCHEDCONFIDENCE5/5

    SLS fell 19.0% and accelerated another 5.96% in five minutes after announcing that its Phase 3 REGAL trial reached the 80th death event and is moving to final analysis. The announcement triggers upcoming topline results but provides no efficacy outcome, so it does not substantiate a decline of this magnitude.

    WHYDown 19% on a milestone that only initiates database lock and analysis, with no disclosed trial result, is a much larger move than the news itself supports.
    ANALYZED 09:51 ET · 2 MIN AGO · OPENAI/GPT-5.6-LUNA
    THE ROW AND SESSION LEVELS AT 09:53 ET
    LAST9.72
    DAY▼ 20.1%
    5 MIN▼ 7.03%
    5M RVOL10.2×
    5M $VOL$9.2M
    FLOAT*201.9M
    RANK#3
    SESSIONREGULAR
    VWAP11.26
    HOD12.97
    LOD9.81
    OR HIGH12.44
    OR LOW11.02
    PREV CLOSE12.17
    PM HIGH12.97
    PM LOW10.99
    GAP▲ 0.25%

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

THE SESSION

  • 09:30 ETOpened at $12.20, +0.3% on the previous close of $12.17
  • 09:30 ETRegular-session high, $12.44
  • 09:53 ETRegular-session low, $9.71
  • 15:59 ETLast trade of the regular session, $10.39, -14.7% on the previous close of $12.17
  • Volume: 21.9M shares in regular hours, 1.1M before the open

SLS opened at $12.20 and briefly reached $12.44 before falling to $9.71 by 09:53 ET, ending the regular session at $10.39, or 14.7% below the previous close. TapeRank’s read tied the move to SELLAS’s announcement that its Phase 3 REGAL trial had surpassed the prespecified 80th death event and was moving to final analysis; the company disclosed no efficacy outcome, and TapeRank marked the decline as stretched. There were no regular-session halts, and volume reached 21.9 million shares.

WRITTEN WED OCT 28 2026 16:00 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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