13F Insight
DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex
GPCR

STRUCTURE THERA. ADR

191 institutions still hold STRUCTURE THERA. ADR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 86366e106·191 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 0.3%
vs prior quarter
13F value held
$2.7B
67.0% inst. owned
of float
Holders
191
-29 QoQ
filers reporting
Activity
+23 / −47
+805 added · −665 reduced
this quarter
Concentration
14.87%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

191 institutions reported GPCR in Q1 2026. FMR LLC leads at 14.9% of the visible book. -29 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$405M8.4M0.02%Q1 202602
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$350M7.3M0.07%Q1 202603
Avoro Capital Advisors LLC
CIK 0001633313
$316M6.6M3.11%Q1 202604
JANUS HENDERSON GROUP PLC
CIK 0001274173
$258M5.4M0.12%Q1 202605
BVF INC/IL
CIK 0001056807
$242M3.5M8.15%Q4 202506
Deep Track Capital, LP
CIK 0001856083
$206M4.3M3.37%Q1 202607
MORGAN STANLEY
CIK 0000895421
$111M2.3M0.01%Q1 202608
BAKER BROS. ADVISORS LP
CIK 0001263508
$100M1.4M0.58%Q4 202509
PRINCIPAL FINANCIAL GROUP INC
CIK 0001126328
$85M1.8M0.05%Q1 202610
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 0000938206
$76M1.6M0.56%Q1 202611
ORBIMED ADVISORS LLC
CIK 0001055951
$71M1.5M1.42%Q1 202612
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$69M1.4M0.04%Q1 202613
Siren, L.L.C.
CIK 0002005245
$64M1.3M1.78%Q1 202614
CITADEL ADVISORS LLC
CIK 0001423053
$63M907K0.01%Q4 202515
Capitolis Liquid Global Markets LLC
CIK 0001960050
$61M878K0.36%Q4 202516
Casdin Capital, LLC
CIK 0001534261
$57M1.2M4.29%Q1 202617
CAPITOLIS LIQUID GLOBAL MARKETS LLC
CIK 0002094379
$55M1.2M0.35%Q1 202618
DEERFIELD MANAGEMENT COMPANY, L.P.
CIK 0001009258
$53M768K0.68%Q4 202519
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$44M639K0.01%Q1 202620
PACIFIC HEIGHTS ASSET MANAGEMENT LLC
CIK 0001323414
$36M750K1.21%Q1 2026
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