Fox Run Management’s Lantheus LNTH Stock Holding History

Fox Run 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 Q4	–	Sell	-5,047	Closed	-$259K	–	1095
2025 Q3	$259K	Sell	5,047 -2,939	-37%	-$184K	0.04%	735
2025 Q2	$654K	Buy	+7,986	New	+$701K	0.11%	352
2024 Q3	–	Sell	-7,619	Closed	-$612K	–	972
2024 Q2	$612K	Sell	7,619 -10,053	-57%	-$737K	0.12%	339
2024 Q1	$1.1M	Buy	+17,672	New	+$1.04M	0.24%	104
2023 Q3	–	Sell	-10,377	Closed	-$871K	–	861
2023 Q2	$871K	Buy	+10,377	New	+$931K	0.24%	114
2023 Q1	–	Sell	-4,470	Closed	-$228K	–	815
2022 Q4	$228K	Sell	4,470 -3,944	-47%	-$243K	0.09%	446
2022 Q3	$592K	Buy	+8,414	New	+$637K	0.23%	115
2022 Q2	–	Sell	-8,586	Closed	-$475K	–	652
2022 Q1	$475K	Buy	+8,586	New	+$322K	0.26%	113
2021 Q3	–	Sell	-15,508	Closed	-$429K	–	558
2021 Q2	$429K	Buy	+15,508	New	+$356K	0.39%	80
2018 Q1	–	Sell	-23,531	Closed	-$481K	–	829
2017 Q4	$481K	Buy	+23,531	New	+$479K	0.14%	302

Other funds holding LNTH

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

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

FCM

Farallon Capital Management San Francisco, California $21.7B AUM 79.24% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Fox Run Management's LNTH Position: Q4 2025 in Review

Fox Run Management sold out of Lantheus (LNTH) in Q4 2025, closing a stake of 5,047 shares — an estimated $259K sold.

Fox Run Management first reported a position in LNTH in Q4 2017 and held it in 10 quarters. The position peaked at $1.1M in Q1 2024. 392 funds tracked by Wall St. Rank hold LNTH as of Q4 2025.

Fox Run Management reported no remaining Lantheus position as of Q4 2025 after selling out during the quarter.
Fox Run Management sold 5,047 Lantheus shares in Q4 2025, an estimated $259K.
Fox Run Management first reported a position in Lantheus in Q4 2017 and held it in 10 quarters.
Fox Run Management's Lantheus position peaked at $1.1M in Q1 2024.
392 funds tracked by Wall St. Rank held Lantheus as of Q4 2025.

Based on Fox Run Management's 13F filing for Q4 2025, filed 11 Feb 2026.