Adage Capital Partners’s Lantheus LNTH Stock Holding History

Adage Capital Partners’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
2026 Q2	$27.4M	Sell	246,755 -100,000	-29%	-$9.32M	0.04%	415
2026 Q1	$26.3M	Buy	+346,755	New	+$24.9M	0.04%	401
2023 Q4	–	Sell	-225,000	Closed	-$15.6M	–	901
2023 Q3	$15.6M	Buy	225,000 +205,000	+1,025%	+$15M	0.04%	464
2023 Q2	$1.68M	Buy	+20,000	New	+$1.79M	﹤0.01%	749
2022 Q4	–	Sell	-150,000	Closed	-$10.6M	–	1020
2022 Q3	$10.6M	Sell	150,000 -75,000	-33%	-$5.68M	0.03%	622
2022 Q2	$14.9M	Sell	225,000 -275,000	-55%	-$17.3M	0.03%	550
2022 Q1	$27.7M	Buy	500,000 +50,000	+11%	+$1.88M	0.05%	362
2021 Q4	$13M	Sell	450,000 -50,000	-10%	-$1.33M	0.02%	625
2021 Q3	$12.8M	Hold	500,000	–	–	0.03%	621
2021 Q2	$13.8M	Buy	+500,000	New	+$11.5M	0.03%	593

Other funds holding LNTH

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

FCM

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

Jupiter Topco New York $245B AUM

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

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

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

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

Adage Capital Partners's LNTH Position: Q2 2026 in Review

Adage Capital Partners reduced its Lantheus (LNTH) stake by 29% in Q2 2026, selling an estimated $9.32M and leaving 246,755 shares worth $27.4M. The position accounts for 0.04% of the portfolio, ranked #415.

Adage Capital Partners first reported a position in LNTH in Q2 2021 and has held it in 10 quarters since. The position peaked at $27.7M in Q1 2022. 467 funds tracked by Wall St. Rank hold LNTH as of Q2 2026.

Adage Capital Partners held 246,755 shares of Lantheus worth $27.4M as of Q2 2026.
Adage Capital Partners sold 100,000 Lantheus shares in Q2 2026, an estimated $9.32M.
Lantheus made up 0.04% of Adage Capital Partners's portfolio in Q2 2026, its #415 holding.
Adage Capital Partners first reported a position in Lantheus in Q2 2021 and has held it in 10 quarters since.
Adage Capital Partners's Lantheus position peaked at $27.7M in Q1 2022.
467 funds tracked by Wall St. Rank held Lantheus as of Q2 2026.

Based on Adage Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.