Harbour Investments’s Lantheus LNTH Stock Holding History

Harbour Investments’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 Q1	$29.7K	Sell	392 -983	-71%	-$70.6K	﹤0.01%	2645
2025 Q4	$91.5K	Buy	1,375 +1,355	+6,775%	+$78.9K	﹤0.01%	1687
2025 Q3	$1.03K	Hold	20	–	–	﹤0.01%	3411
2025 Q2	$1.64K	Hold	20	–	–	﹤0.01%	3187
2025 Q1	$1.95K	Hold	20	–	–	﹤0.01%	3091
2024 Q4	$1.79K	Hold	20	–	–	﹤0.01%	3046
2024 Q3	$2.19K	Hold	20	–	–	﹤0.01%	2897
2024 Q2	$1.61K	Sell	20 -20	-50%	-$1.47K	﹤0.01%	2869
2024 Q1	$2.49K	Hold	40	–	–	﹤0.01%	2715
2023 Q4	$2.48K	Hold	40	–	–	﹤0.01%	2633
2023 Q3	$2.78K	Hold	40	–	–	﹤0.01%	2466
2023 Q2	$3.36K	Buy	+40	New	+$3.59K	﹤0.01%	2401
2021 Q4	–	Sell	-8	Closed	–	–	3235
2021 Q3	$0	Sell	8 -420	-98%	-$11K	﹤0.01%	3872
2021 Q2	$12K	Buy	428 +420	+5,250%	+$9.64K	﹤0.01%	2630
2021 Q1	$0	Buy	+8	New	+$145	﹤0.01%	3664

Other funds holding LNTH

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

FCM

Farallon Capital Management San Francisco, California $17.5B AUM 50.95% 1-Year Est. Return

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

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

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

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

Harbour Investments's LNTH Position: Q1 2026 in Review

Harbour Investments reduced its Lantheus (LNTH) stake by 71% in Q1 2026, selling an estimated $70.6K and leaving 392 shares worth $29.7K. The position accounts for ﹤0.01% of the portfolio, ranked #2645.

Harbour Investments first reported a position in LNTH in Q1 2021 and has held it in 15 quarters since. The position peaked at $91.5K in Q4 2025. 404 funds tracked by Wall St. Rank hold LNTH as of Q1 2026.

Harbour Investments held 392 shares of Lantheus worth $29.7K as of Q1 2026.
Harbour Investments sold 983 Lantheus shares in Q1 2026, an estimated $70.6K.
Lantheus made up ﹤0.01% of Harbour Investments's portfolio in Q1 2026, its #2645 holding.
Harbour Investments first reported a position in Lantheus in Q1 2021 and has held it in 15 quarters since.
Harbour Investments's Lantheus position peaked at $91.5K in Q4 2025.
404 funds tracked by Wall St. Rank held Lantheus as of Q1 2026.

Based on Harbour Investments's 13F filing for Q1 2026, filed 15 May 2026.