HALT · UNEXPLAINED MOVE · MOVER · FRI SEP 11 2026

SRRK halted on Sep 11 2026 at $55.34

SRRK-0.6%on Fri Sep 11 2026

Scholar Rock Holding Corporation Common Stock was down 0.6% on the day at $55.34, ranked #1292 on — its usual five-minute volume, when TapeRank recorded this trading halt at 17:07 ET during after hours when it was halted. TapeRank recorded 3 events for SRRK that day, between 17:07 and 18:49 ET, and each is in the timeline below.

THE DAY ON THE LIST · 3 EVENTS

  1. 17:07 ET
    HALT · AFTER-HOURS

    HALTED AT $55.34 · ▼ 0.6% ON THE DAY · — 5M RVOL · RANK #1292

    No verdict was committed for this event.

    THE ROW AND SESSION LEVELS AT 17:07 ET
    LAST55.34
    DAY▼ 0.6%
    5 MIN· 0.00%
    5M RVOL—
    5M $VOL—
    FLOAT*121.8M
    RANK#1292
    SESSIONAFTER-HOURS
    VWAP55.57
    HOD56.94
    LOD54.91
    OR HIGH—
    OR LOW—
    PREV CLOSE55.67
    PM HIGH—
    PM LOW—
    GAP· 0.00%

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

    — MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO

  2. 18:47 ET
    UNEXPLAINED MOVE · AFTER-HOURS

    $65.52 · ▲ 17.7% ON THE DAY · 41.1× 5M RVOL · RANK #1

    UNEXPLAINEDNO FILINGS · RULE

    SRRK is up 11.4% on the day on 24.6x its normal volume for this time of day. No filings or headlines were found in SEC EDGAR filings in the last 24 hours, so this is order flow rather than a disclosed catalyst.

    WHYNo filings or headlines within 24 hours of the move.
    ANALYZED 18:46 ET · 1 MIN AGO · RULE, NO MODEL
    THE ROW AND SESSION LEVELS AT 18:47 ET
    LAST65.52
    DAY▲ 17.7%
    5 MIN▲ 11.05%
    5M RVOL41.1×
    5M $VOL$402K
    FLOAT*121.8M
    RANK#1
    SESSIONAFTER-HOURS
    VWAP55.59
    HOD62.00
    LOD54.91
    OR HIGH—
    OR LOW—
    PREV CLOSE55.67
    PM HIGH—
    PM LOW—
    GAP· 0.00%

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

    — MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO

  3. 18:49 ET
    MOVER · AFTER-HOURS

    $68.39 · ▲ 22.8% ON THE DAY · 54.9× 5M RVOL · RANK #6

    The same verdict as at 18:47 ET.

    THE ROW AND SESSION LEVELS AT 18:49 ET
    LAST68.39
    DAY▲ 22.8%
    5 MIN▲ 15.92%
    5M RVOL54.9×
    5M $VOL$520K
    FLOAT*121.8M
    RANK#6
    SESSIONAFTER-HOURS
    VWAP55.63
    HOD67.00
    LOD54.91
    OR HIGH—
    OR LOW—
    PREV CLOSE55.67
    PM HIGH—
    PM LOW—
    GAP· 0.00%

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

    — MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO

NO VERDICT MEANS THE MODEL HAD NOT REACHED THE NAME BEFORE THE EVENT WAS FINALIZED, OR ITS ANSWER HEDGED AND WAS WITHHELD. NOTHING WAS FILLED IN AFTERWARDS.

THE SESSION

  • 09:30 ETOpened at $55.67, 0.0% on the previous close of $55.67
  • 09:40 ETRegular-session high, $56.94
  • 11:17 ETRegular-session low, $54.91
  • 15:59 ETLast trade of the regular session, $55.39, -0.5% on the previous close of $55.67
  • 17:07 ETHalted after the close (T1); resumed 18:45 ET, after 97 minutes
  • Volume: 713K shares in regular hours, 11K before the open

SRRK opened at $55.67, briefly reached $56.94, then fell to $54.91 before ending the regular session at $55.39, down 0.5% from the previous close. The stock was halted at 17:07 ET at $55.34 and resumed after 97 minutes; it then rose to $65.52 at 18:47 ET and $68.39 at 18:49 ET, its largest recorded move at 22.8% higher. TapeRank found no filings or headlines within 24 hours and classified the move as unexplained.

WRITTEN THU OCT 15 2026 17:48 ET BY OPENAI/GPT-5.6-LUNA FROM THE FACTS ON THIS PAGE

FILINGS · 24H BEFORE THE MOVE

No SEC filings in the 24 hours before this was recorded. A move on an unfiled press release shows nothing here, which is what UNEXPLAINED means.

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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