13F Insight
DOSSIER · 13F Holders · Q2 2026
LNTH 2.625 12/15/27

LANTHEUS HLDGS INC

73 institutions still hold LANTHEUS HLDGS INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 516544AB9·73 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$683M
visible holders
Holders
73
filers reporting
Concentration
11.12%
TENOR CAPITAL MANAGEMENT Co., L.P. #1
top holder share
AI Holders Summary · Q2 2026

73 institutions reported LNTH 2.625 12/15/27 in Q2 2026. TENOR CAPITAL MANAGEMENT Co., L.P. leads at 11.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$76M51.8M1.07%Q2 202602
MACKAY SHIELDS LLC
CIK 0000061227
$74M50.9M2.48%Q2 202603
BRIGADE CAPITAL MANAGEMENT, LP
CIK 0001421306
$62M43.4M11.69%Q2 202604
DeepCurrents Investment Group LLC
CIK 0001754535
$60M41.0M1.82%Q2 202605
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$45M31.0M0.02%Q2 202606
M&G Plc
CIK 0001802539
$45M30.4M0.22%Q2 202607
CAMDEN ASSET MANAGEMENT L P /CA
CIK 0000903944
$43M30.0M1.27%Q2 202608
READYSTATE ASSET MANAGEMENT LP
CIK 0001900923
$34M29.5M1.37%Q4 202509
DEERFIELD MANAGEMENT COMPANY, L.P.
CIK 0001009258
$29M25.3M0.37%Q4 202510
Ovata Capital Management Ltd
CIK 0001724517
$27M18.5M2.03%Q2 202611
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$22M15.1M0.19%Q2 202612
Calamos Advisors LLC
CIK 0001316507
$22M15.1M0.07%Q2 202613
STATE STREET CORP
CIK 0000093751
$22M14.7M0.00%Q2 202614
ADVENT CAPITAL MANAGEMENT /DE/
CIK 0001097278
$21M14.7M0.48%Q2 202615
Squarepoint Ops LLC
CIK 0001642575
$18M13K0.02%Q2 202616
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$18M12.4M0.00%Q2 202617
Wellesley Asset Management
CIK 0001533551
$17M11.9M1.56%Q2 202618
BlackRock, Inc.
CIK 0002012383
$16M11.3M0.00%Q2 202619
ABSOLUTE INVESTMENT ADVISERS, LLC
CIK 0001316187
$15M10.6M1.49%Q2 202620
AMERIPRISE FINANCIAL INC
CIK 0000820027
$15M10.0M0.00%Q2 2026
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