Westfield Capital Management

Westfield Capital Management’s Lantheus LNTH Stock Holding History

Westfield Capital Management’s Portfolio LNTH Stock Details LNTH Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-1,495,072	Closed	-$122M	–	260
2025 Q2	$122M	Sell	1,495,072 -94,073	-6%	-$8.26M	0.51%	48
2025 Q1	$155M	Buy	1,589,145 +34,052	+2%	+$3.18M	0.75%	31
2024 Q4	$139M	Buy	1,555,093 +36,628	+2%	+$3.57M	0.61%	44
2024 Q3	$167M	Sell	1,518,465 -122,693	-7%	-$12.7M	0.75%	28
2024 Q2	$132M	Sell	1,641,158 -316,860	-16%	-$23.2M	0.65%	35
2024 Q1	$122M	Buy	1,958,018 +394,837	+25%	+$23.2M	0.64%	35
2023 Q4	$96.9M	Buy	1,563,181 +268,790	+21%	+$18.2M	0.56%	51
2023 Q3	$89.9M	Buy	1,294,391 +143,794	+12%	+$10.5M	0.61%	46
2023 Q2	$96.6M	Buy	1,150,597 +49,299	+4%	+$4.42M	0.61%	47
2023 Q1	$90.9M	Sell	1,101,298 -464,413	-30%	-$30M	0.64%	49
2022 Q4	$79.8M	Buy	1,565,711 +310,977	+25%	+$19.2M	0.62%	57
2022 Q3	$88.2M	Buy	1,254,734 +315,446	+34%	+$23.9M	0.7%	38
2022 Q2	$62M	Buy	+939,288	New	+$59.2M	0.49%	72

Other funds holding LNTH

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Janus Henderson Group

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Farallon Capital Management San Francisco, California $15.3B AUM 50.95% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Dimensional Fund Advisors

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return