Lantheus Holdings, Inc.
IT ˙ BIT ˙ US5165441032
81,20 € 0,00 (0,00%)
2026-06-03
DEL PRIS
SecurityIT:1LNTH / Lantheus Holdings, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership134,311 shares
Latest Disclosed Value $ 8,938,397
Alliancebernstein L.p. reports 0.44% increase in ownership of 1LNTH / Lantheus Holdings, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 134,311 shares of Lantheus Holdings, Inc. (IT:1LNTH) valued at $8,797,370 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 133,722 shares of Lantheus Holdings, Inc.. This represents a change in shares of 0.44% during the quarter. The current value of the position is $10,906,053 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)
2026-05-15 2026-03-31 13F LANTHEUS HLDGS COM 516544103 134,311 589 0.44 8,938 0.44 0.0029
2026-02-17 2025-12-31 13F LANTHEUS HLDGS COM 516544103 133,722 -5,062 -3.65 8,899 25.02 0.0028
2025-11-14 2025-09-30 13F LANTHEUS HLDGS COM 516544103 138,784 -44,843 -24.42 7,118 -52.64 0.0022
2025-08-14 2025-06-30 13F LANTHEUS HLDGS COM 516544103 183,627 5,777 3.25 15,032 -13.41 0.0049
2025-05-15 2025-03-31 13F LANTHEUS HLDGS COM 516544103 177,850 34,397 23.98 17,358 35.26 0.0063
2025-02-12 2024-12-31 13F LANTHEUS HLDGS COM 516544103 143,453 -1,051 -0.73 12,833 -19.08 0.0044
2024-11-14 2024-09-30 13F LANTHEUS HLDGS COM 516544103 144,504 -5,056 -3.38 15,859 32.07 0.0053
2024-08-14 2024-06-30 13F LANTHEUS HLDGS COM 516544103 149,560 4,572 3.15 12,008 33.07 0.0042
2024-05-14 2024-03-31 13F LANTHEUS HLDGS COM 516544103 144,988 -1,824,984 -92.64 9,024 -92.61 0.0032
2024-02-14 2023-12-31 13F LANTHEUS HLDGS COM 516544103 1,969,972 -300,617 -13.24 122,138 -22.58 0.0470
2023-11-14 2023-09-30 13F LANTHEUS HLDGS COM 516544103 2,270,589 -384,970 -14.50 157,761 -29.21 0.0671
2023-08-15 2023-06-30 13F LANTHEUS HLDGS COM 516544103 2,655,559 -190,046 -6.68 222,855 -5.14 0.0909
2023-05-15 2023-03-31 13F LANTHEUS HLDGS COM 516544103 2,845,605 -347,697 -10.89 234,933 44.37 0.1007
2023-02-15 2022-12-31 13F LANTHEUS HLDGS COM 516544103 3,193,302 489,203 18.09 162,731 -14.43 0.0732
2022-11-15 2022-09-30 13F LANTHEUS HLDGS COM 516544103 2,704,099 2,611,699 2,826.51 190,179 3,017.18 0.0921
2022-08-15 2022-06-30 13F LANTHEUS HLDGS COM 516544103 92,400 231 0.25 6,101 19.67 0.0028
2022-05-13 2022-03-31 13F LANTHEUS HLDGS COM 516544103 92,169 -13,837 -13.05 5,098 66.44 0.0020
2022-02-14 2021-12-31 13F LANTHEUS HLDGS COM 516544103 106,006 306 0.29 3,063 12.86 0.0011
2021-11-10 2021-09-30 13F LANTHEUS HLDGS COM 516544103 105,700 -3,060 -2.81 2,714 -9.71 0.0011
2021-07-30 2021-06-30 13F LANTHEUS HLDGS COM 516544103 108,760 -6,675 -5.78 3,006 21.85 0.0012
2021-05-06 2021-03-31 13F LANTHEUS HLDGS COM 516544103 115,435 4,395 3.96 2,467 64.69 0.0011
2021-02-08 2020-12-31 13F LANTHEUS HLDGS COM 516544103 111,040 -4,200 -3.64 1,498 2.60 0.0007
2020-11-12 2020-09-30 13F LANTHEUS HLDGS COM 516544103 115,240 -1,655 -1.42 1,460 -12.68 0.0008
2020-08-13 2020-06-30 13F LANTHEUS HLDGS COM 516544103 116,895 50,745 76.71 1,672 98.10 0.0010
2020-05-14 2020-03-31 13F LANTHEUS HLDGS COM 516544103 66,150 50 0.08 844 -37.76 0.0006
2020-02-18 2019-12-31 13F LANTHEUS HLDGS COM 516544103 66,100 -97,527 -59.60 1,356 -66.93 0.0008
2019-11-14 2019-09-30 13F LANTHEUS HLDGS COM 516544103 163,627 -8,850 -5.13 4,101 -15.98 0.0026
2019-08-14 2019-06-30 13F LANTHEUS HLDGS COM 516544103 172,477 130,077 306.79 4,881 370.23 0.0030
2019-05-14 2019-03-31 13F LANTHEUS HLDGS COM 516544103 42,400 1,500 3.67 1,038 62.19 0.0007
2019-02-13 2018-12-31 13F LANTHEUS HLDGS COM 516544103 40,900 0 0.00 640 4.75 0.0005
2018-11-08 2018-09-30 13F LANTHEUS HLDGS COM 516544103 40,900 0 0.00 611 2.69 0.0004
2018-08-13 2018-06-30 13F LANTHEUS HLDGS COM 516544103 40,900 9,600 30.67 595 19.48 0.0004
2018-05-14 2018-03-31 13F LANTHEUS HLDGS COM 516544103 31,300 -60,370 -65.86 498 -73.44 0.0004
2018-02-13 2017-12-31 13F LANTHEUS HLDGS COM 516544103 91,670 13,900 17.87 1,875 35.48 0.0013
2017-11-13 2017-09-30 13F LANTHEUS HLDGS COM 516544103 77,770 60,370 346.95 1,384 350.81 0.0010
2017-08-10 2017-06-30 13F LANTHEUS HLDGS COM 516544103 17,400 17,400 307 0.0002
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.