13F Insight
DOSSIER · 13F Holders · Q4 2025CyclicalNet sold
SMMT

SUMMIT THERAPEUTICS INC

240 institutions still hold SUMMIT THERAPEUTICS INC as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 86627t108·240 13F holders·last filed Dec 31, 2025
Market cap
—
▼ 4.1%
vs prior quarter
13F value held
$1.8B
50.0% inst. owned
of float
Holders
240
+44 QoQ
filers reporting
Activity
+22 / −37
+910 added · −775 reduced
this quarter
Concentration
35.37%
BAKER BROS. ADVISORS LP #1
top holder share
AI Holders Summary · Q4 2025

240 institutions reported SMMT in Q4 2025. BAKER BROS. ADVISORS LP leads at 35.4% of the visible book. +44 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BAKER BROS. ADVISORS LP
CIK 0001263508
$636M36.4M3.73%Q4 202502
FMR LLC
CIK 0000315066
$206M10.9M0.01%Q1 202603
BlackRock, Inc.
CIK 0002012383
$183M9.7M0.00%Q1 202604
STATE STREET CORP
CIK 0000093751
$133M7.0M0.00%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$108M5.7M0.00%Q1 202606
Vanguard Portfolio Management
CIK 0002100121
$99M5.2M0.01%Q1 202607
UBS Group AG
CIK 0001610520
$70M3.7M0.01%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$63M3.3M0.00%Q1 202609
CITADEL ADVISORS LLC
CIK 0001423053
$56M3.2M0.01%Q4 202510
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$46M2.4M0.01%Q1 202611
MORGAN STANLEY
CIK 0000895421
$31M1.7M0.00%Q1 202612
APEIRON CAPITAL Ltd
CIK 0001843111
$25M1.3M23.21%Q1 202613
Pictet Asset Management Holding SA
CIK 0001993888
$24M1.3M0.03%Q1 202614
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$19M981K0.01%Q1 202615
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$18M961K0.00%Q1 202616
TD ASSET MANAGEMENT INC
CIK 0001056053
$18M957K0.01%Q1 202617
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$18M934K0.00%Q1 202618
SUPERSTRING CAPITAL MANAGEMENT LP
CIK 0001931118
$17M893K12.09%Q1 202619
Point72 Asset Management, L.P.
CIK 0001603466
$15M801K0.02%Q1 202620
Rock Springs Capital Management LP
CIK 0001595725
$13M710K0.79%Q1 2026
Page 1 of 12
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