Lantheus Holdings, Inc.
US ˙ NasdaqGM ˙ US5165441032

SecurityLNTH / Lantheus Holdings, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership8,341 shares
Latest Disclosed Value $ 632,665
Neuberger Berman Group LLC reports 7.70% increase in ownership of LNTH / Lantheus Holdings, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 8,341 shares of Lantheus Holdings, Inc. (US:LNTH) valued at $632,665 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,745 shares of Lantheus Holdings, Inc.. This represents a change in shares of 7.70% during the quarter. The current value of the position is $836,185 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F LANTHEUS HOLDINGS Common 516544103 8,341 596 7.70 633 22.72 0.0005
2026-02-13 2025-12-31 13F LANTHEUS HOLDINGS Common 516544103 7,745 -5,149 -39.93 515 -22.09 0.0004
2025-11-12 2025-09-30 13F LANTHEUS HOLDINGS Common 516544103 12,894 -100,343 -88.61 661 -92.87 0.0005
2025-08-25 2025-06-30 13F/A-1 LANTHEUS HOLDINGS Common 516544103 113,237 9,675 9.34 9,270 -8.29 0.0071
2025-08-13 2025-06-30 13F LANTHEUS HOLDINGS Common 516544103 113,237 9,675 9,270 0.0037
2025-05-13 2025-03-31 13F LANTHEUS HOLDINGS Common 516544103 103,562 90,574 697.37 10,108 770.54 0.0085
2025-02-13 2024-12-31 13F LANTHEUS HOLDINGS Common 516544103 12,988 -65,730 -83.50 1,162 -86.56 0.0009
2024-11-14 2024-09-30 13F LANTHEUS HOLDINGS Common 516544103 78,718 -17,953 -18.57 8,639 11.31 0.0067
2024-11-14 2024-06-30 13F/A-1 LANTHEUS HOLDINGS Common 516544103 96,671 16,498 20.58 7,762 55.56 0.0064
2024-08-13 2024-06-30 13F LANTHEUS HOLDINGS Common 516544103 96,671 16,498 7,762 0.0064
2024-11-14 2024-03-31 13F/A-1 LANTHEUS HOLDINGS Common 516544103 80,173 28,054 53.83 4,990 54.41 0.0041
2024-05-13 2024-03-31 13F LANTHEUS HOLDINGS Common 516544103 80,173 28,054 4,990 0.0041
2024-11-14 2023-12-31 13F/A-2 LANTHEUS HOLDINGS Common 516544103 52,119 12,862 32.76 3,231 18.48 0.0028
2024-02-09 2023-12-31 13F LANTHEUS HOLDINGS Common 516544103 52,119 12,862 3,231 0.0028
2023-11-14 2023-09-30 13F LANTHEUS HOLDINGS Common 516544103 39,257 -34,954 -47.10 2,728 -56.21 0.0025
2023-08-11 2023-06-30 13F LANTHEUS HOLDINGS Common 516544103 74,211 74,211 6,228 0.0056
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.