13F Insight
DOSSIER · 13F Holders · Q1 2026Inflation hedgeYield
LBRX

LB PHARMACEUTICALS INC

74 institutions still hold LB PHARMACEUTICALS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 50180M108·74 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 6.8%
vs prior quarter
13F value held
$609M
52.0% inst. owned
of float
Holders
74
+48 QoQ
filers reporting
Activity
+82 / −115
+976 added · −768 reduced
this quarter
Concentration
13.57%
Deep Track Capital, LP #1
top holder share
AI Holders Summary · Q1 2026

74 institutions reported LBRX in Q1 2026. Deep Track Capital, LP leads at 13.6% of the visible book. +48 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Deep Track Capital, LP
CIK 0001856083
$83M3.4M1.35%Q1 202602
BlackRock, Inc.
CIK 0002012383
$61M2.5M0.00%Q1 202603
RA CAPITAL MANAGEMENT, L.P.
CIK 0001346824
$54M2.2M0.58%Q1 202604
TCG Crossover Management, LLC
CIK 0001839948
$45M1.8M1.30%Q1 202605
Commodore Capital LP
CIK 0001831942
$37M1.5M2.14%Q1 202606
Caligan Partners LP
CIK 0001727492
$35M1.4M2.30%Q1 202607
Spruce Street Capital LP
CIK 0002050194
$34M1.4M8.09%Q1 202608
JPMORGAN CHASE & CO
CIK 0000019617
$33M1.4M0.00%Q1 202609
Trails Edge Capital Partners, LP
CIK 0002077247
$31M1.4M7.68%Q4 202510
Nantahala Capital Management, LLC
CIK 0001472322
$26M1.1M0.96%Q1 202611
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$23M924K0.03%Q1 202612
Logos Global Management LP
CIK 0001792126
$23M915K1.13%Q1 202613
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$22M895K0.00%Q1 202614
Vivo Capital, LLC
CIK 0001674712
$20M800K1.64%Q1 202615
JENNISON ASSOCIATES LLC
CIK 0000053417
$18M822K0.01%Q4 202516
Nan Fung Group Holdings Ltd
CIK 0001782539
$16M631K12.82%Q1 202617
Alyeska Investment Group, L.P.
CIK 0001453072
$15M675K0.04%Q4 202518
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$13M518K0.00%Q1 202619
STATE STREET CORP
CIK 0000093751
$12M504K0.00%Q1 202620
CITADEL ADVISORS LLC
CIK 0001423053
$9M408K0.00%Q4 2025
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