LANTHEUS HLDGS INC

Ticker: LNTH CUSIP: 516544103 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 18,096 Value ($000) $1,204 Avg Close $58.19 Range $49.67 - $68.83

Q3 2025

Shares 35,853 Value ($000) $1,839 Avg Close $62.49 Range $47.25 - $85.31

Q2 2025

Shares 93,883 Value ($000) $7,686 Avg Close $87.82 Range $73.11 - $108.91

Q1 2025

Shares 135,690 Value ($000) $13,244 Avg Close $93.52 Range $77.73 - $111.29

Q4 2024

Shares 150,603 Value ($000) $13,475 Avg Close $97.41 Range $75.00 - $118.21

Q3 2024

Shares 172,706 Value ($000) $18,957 Avg Close $103.88 Range $76.10 - $126.89

Q2 2024

Shares 151,131 Value ($000) $12,132 Avg Close $73.36 Range $58.16 - $84.29

Q1 2024

Shares 143,285 Value ($000) $8,918 Avg Close $58.85 Range $50.20 - $69.73

Q4 2023

Shares 150,438 Value ($000) $9,328 Avg Close $67.75 Range $54.85 - $79.20

Q3 2023

Shares 198,976 Value ($000) $13,826 Avg Close $73.14 Range $59.85 - $91.81

Q2 2023

Shares 218,788 Value ($000) $18,361 Avg Close $89.74 Range $81.02 - $100.85

Q1 2023

Shares 247,730 Value ($000) $20,453 Avg Close $64.49 Range $47.46 - $83.82

Q4 2022

Shares 209,541 Value ($000) $10,678 Avg Close $61.70 Range $47.77 - $79.56

Q3 2022

Shares 177,770 Value ($000) $12,502 Avg Close $75.74 Range $60.28 - $87.47

Q2 2022

Shares 164,008 Value ($000) $10,816 Avg Close $63.04 Range $54.50 - $73.78

Q1 2022

Shares 147,122 Value ($000) $8,127 Avg Close $37.52 Range $23.51 - $58.28

Q4 2021

Shares 237,008 Value ($000) $6,849 Avg Close $26.60 Range $22.20 - $31.60

Q3 2021

Shares 30,749 Value ($000) $792 Avg Close $26.12 Range $23.22 - $28.74

Q2 2021

Shares 32,215 Value ($000) $893 Avg Close $22.95 Range $19.30 - $27.81

Q1 2019

Shares 2,558 Value ($000) $63 Avg Close $19.99 Range $14.57 - $25.49

Q4 2018

Shares 2,721 Value ($000) $41 Avg Close $15.31 Range $12.59 - $19.31

Q3 2018

Shares 2,721 Value ($000) $41 Avg Close $14.61 Range $12.80 - $16.60

Q2 2018

Shares 2,560 Value ($000) $37 Avg Close $15.39 Range $13.55 - $19.95

Q1 2018

Shares 315 Value ($000) $5 Avg Close $19.50 Range $14.45 - $24.45

Q4 2017

Shares 9,258 Value ($000) $189 Avg Close $20.36 Range $17.15 - $24.10

Q3 2017

Shares 7,829 Value ($000) $139 Avg Close $17.58 Range $15.05 - $20.45

Q2 2017

Shares 2,703 Value ($000) $48 Avg Close $14.71 Range $10.65 - $17.85

Q1 2017

Shares 1,707 Value ($000) $21 Avg Close $10.58 Range $7.95 - $14.25

Q4 2016

Shares 1,285 Value ($000) $11 Avg Close $8.93 Range $7.61 - $10.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,096	$1,204	$58.19	$49.67 - $68.83
Q3 2025	35,853	$1,839	$62.49	$47.25 - $85.31
Q2 2025	93,883	$7,686	$87.82	$73.11 - $108.91
Q1 2025	135,690	$13,244	$93.52	$77.73 - $111.29
Q4 2024	150,603	$13,475	$97.41	$75.00 - $118.21
Q3 2024	172,706	$18,957	$103.88	$76.10 - $126.89
Q2 2024	151,131	$12,132	$73.36	$58.16 - $84.29
Q1 2024	143,285	$8,918	$58.85	$50.20 - $69.73
Q4 2023	150,438	$9,328	$67.75	$54.85 - $79.20
Q3 2023	198,976	$13,826	$73.14	$59.85 - $91.81
Q2 2023	218,788	$18,361	$89.74	$81.02 - $100.85
Q1 2023	247,730	$20,453	$64.49	$47.46 - $83.82
Q4 2022	209,541	$10,678	$61.70	$47.77 - $79.56
Q3 2022	177,770	$12,502	$75.74	$60.28 - $87.47
Q2 2022	164,008	$10,816	$63.04	$54.50 - $73.78
Q1 2022	147,122	$8,127	$37.52	$23.51 - $58.28
Q4 2021	237,008	$6,849	$26.60	$22.20 - $31.60
Q3 2021	30,749	$792	$26.12	$23.22 - $28.74
Q2 2021	32,215	$893	$22.95	$19.30 - $27.81
Q1 2019	2,558	$63	$19.99	$14.57 - $25.49
Q4 2018	2,721	$41	$15.31	$12.59 - $19.31
Q3 2018	2,721	$41	$14.61	$12.80 - $16.60
Q2 2018	2,560	$37	$15.39	$13.55 - $19.95
Q1 2018	315	$5	$19.50	$14.45 - $24.45
Q4 2017	9,258	$189	$20.36	$17.15 - $24.10
Q3 2017	7,829	$139	$17.58	$15.05 - $20.45
Q2 2017	2,703	$48	$14.71	$10.65 - $17.85
Q1 2017	1,707	$21	$10.58	$7.95 - $14.25
Q4 2016	1,285	$11	$8.93	$7.61 - $10.85