Lantheus Holdings, Inc.
US ˙ NasdaqGM ˙ US5165441032

SecurityLNTH / Lantheus Holdings, Inc.
InstitutionSilvercrest Asset Management Group Llc
Latest Disclosed Ownership292,806 shares
Latest Disclosed Value $ 22,209,591
Silvercrest Asset Management Group Llc reports 29.67% decrease in ownership of LNTH / Lantheus Holdings, Inc.

On May 15, 2026 - Silvercrest Asset Management Group Llc filed a 13F-HR form disclosing ownership of 292,806 shares of Lantheus Holdings, Inc. (US:LNTH) valued at $22,209,335 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 416,328 shares of Lantheus Holdings, Inc.. This represents a change in shares of -29.67% during the quarter. The current value of the position is $29,353,802 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F LANTHEUS HLDGS INC COM COM 516544103 292,806 -123,522 -29.67 22,210 -19.84 0.1605
2026-02-17 2025-12-31 13F LANTHEUS HLDGS COM 516544103 416,328 -53,134 -11.32 27,707 15.07 0.1904
2025-11-14 2025-09-30 13F LANTHEUS HLDGS INC COM COM 516544103 469,462 -546,946 -53.81 24,079 -71.06 0.1593
2025-08-14 2025-06-30 13F LANTHEUS HLDGS COM 516544103 1,016,408 -46,627 -4.39 83,204 -19.81 0.5589
2025-05-15 2025-03-31 13F LANTHEUS HLDGS COM 516544103 1,063,035 89,147 9.15 103,752 19.09 0.7427
2025-02-14 2024-12-31 13F LANTHEUS HLDGS COM 516544103 973,888 273,838 39.12 87,124 13.40 0.5820
2024-11-14 2024-09-30 13F LANTHEUS HLDGS INC COM COM 516544103 700,050 -174,955 -19.99 76,831 9.36 0.5228
2024-08-15 2024-06-30 13F/A-1 LANTHEUS HLDGS INC COM COM 516544103 875,005 61,610 7.57 70,254 38.77 0.4819
2024-08-14 2024-06-30 13F LANTHEUS HLDGS INC COM COM 516544103 1,750,010 936,615 140,508 0.4819
2024-05-15 2024-03-31 13F LANTHEUS HLDGS INC COM COM 516544103 813,395 -28,861 -3.43 50,626 -3.05 0.3425
2024-02-14 2023-12-31 13F LANTHEUS HLDGS INC COM COM 516544103 842,256 285,246 51.21 52,220 34.93 0.3693
2023-11-14 2023-09-30 13F LANTHEUS HLDGS INC COM COM 516544103 557,010 -100,340 -15.26 38,701 -29.84 0.2938
2023-08-14 2023-06-30 13F LANTHEUS HLDGS INC COM COM 516544103 657,350 -434,723 -39.81 55,165 -38.82 0.3935
2023-05-15 2023-03-31 13F LANTHEUS HLDGS INC COM COM 516544103 1,092,073 -31,081 -2.77 90,162 57.53 0.6846
2023-02-14 2022-12-31 13F LANTHEUS HLDGS INC COM COM 516544103 1,123,154 -298,723 -21.01 57,236 -42.77 0.4400
2022-11-14 2022-09-30 13F LANTHEUS HLDGS INC COM COM 516544103 1,421,877 -275,515 -16.23 100,001 -10.78 0.8225
2022-08-15 2022-06-30 13F LANTHEUS HLDGS INC COM COM 516544103 1,697,392 -228,566 -11.87 112,079 5.21 0.8519
2022-05-16 2022-03-31 13F LANTHEUS HLDGS INC COM COM 516544103 1,925,958 -240,127 -11.09 106,525 71.61 0.6919
2022-02-14 2021-12-31 13F LANTHEUS HLDGS INC COM COM 516544103 2,166,085 169,335 8.48 62,073 21.06 0.3932
2021-11-15 2021-09-30 13F LANTHEUS HLDGS INC COM COM 516544103 1,996,750 965,665 93.66 51,276 79.92 0.3456
2021-08-16 2021-06-30 13F LANTHEUS HLDGS INC COM COM 516544103 1,031,085 1,031,085 28,500 0.1869
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.