Lantheus Holdings, Inc.
US ˙ NasdaqGM ˙ US5165441032

SecurityLNTH / Lantheus Holdings, Inc.
InstitutionSwedbank AB
Latest Disclosed Ownership1,228,743 shares
Latest Disclosed Value $ 93,200,157
Swedbank AB ownership in LNTH / Lantheus Holdings, Inc.

On April 29, 2026 - Swedbank AB filed a 13F-HR form disclosing ownership of 1,228,743 shares of Lantheus Holdings, Inc. (US:LNTH) valued at $93,200,157 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 9, 2026 disclosing 1,228,743 shares of Lantheus Holdings, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $124,078,468 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)
2026-04-29 2026-03-31 13F LANTHEUS HLDGS COM 516544103 1,228,743 0 0.00 93,200 13.98 0.0550
2026-02-09 2025-12-31 13F/A-1 LANTHEUS HLDGS COM 516544103 1,228,743 0 0.00 81,773 29.75 0.0791
2026-02-03 2025-12-31 13F LANTHEUS HLDGS COM 516544103 1,228,743 0 81,773 0.0445
2025-10-15 2025-09-30 13F LANTHEUS HLDGS COM 516544103 1,228,743 0 0.00 63,022 -37.34 0.0639
2025-07-10 2025-06-30 13F LANTHEUS HLDGS COM 516544103 1,228,743 0 0.00 100,585 -16.13 0.1131
2025-04-14 2025-03-31 13F LANTHEUS HLDGS COM 516544103 1,228,743 121,500 10.97 119,925 21.07 0.1597
2025-01-22 2024-12-31 13F LANTHEUS HLDGS COM 516544103 1,107,243 385,000 53.31 99,054 24.96 0.1218
2024-10-11 2024-09-30 13F LANTHEUS HLDGS COM 516544103 722,243 125,843 21.10 79,266 65.54 0.1012
2024-07-11 2024-06-30 13F LANTHEUS HLDGS COM 516544103 596,400 173,100 40.89 47,885 81.75 0.0640
2024-05-15 2024-03-31 13F/A-1 LANTHEUS HOLDING COM 516544103 423,300 316,800 297.46 26,346 299.00 0.2300
2024-12-06 2023-12-31 13F LANTHEUS HLDGS COM 516544103 106,500 82,100 336.48 6,603 289.56 0.0106
2024-12-06 2023-09-30 13F LANTHEUS HLDGS COM 516544103 24,400 24,400 1,695 0.0029
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.