Janus Henderson Group
LNTH icon

Janus Henderson Group’s Lantheus LNTH Stock Holding History

Janus Henderson Group’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 		$362M Sell
4,774,841
-932,406
-16% -$66.9M 0.17% 131
2025
Q4 		$380M Sell
5,707,247
-977,490
-15% -$56.9M 0.17% 130
2025
Q3 		$343M Sell
6,684,737
-254,247
-4% -$15.9M 0.16% 125
2025
Q2 		$568M Buy
6,938,984
+424,532
+7% +$37.3M 0.28% 79
2025
Q1 		$626M Buy
6,514,452
+315,763
+5% +$29.5M 0.34% 59
2024
Q4 		$555M Buy
6,198,689
+2,610,118
+73% +$254M 0.28% 83
2024
Q3 		$394M Buy
3,588,571
+257,022
+8% +$26.7M 0.2% 119
2024
Q2 		$267M Sell
3,331,549
-507,655
-13% -$37.2M 0.14% 147
2024
Q1 		$239M Sell
3,839,204
-108,367
-3% -$6.38M 0.13% 166
2023
Q4 		$245M Buy
3,947,571
+857,421
+28% +$58.1M 0.15% 155
2023
Q3 		$215M Buy
3,090,150
+2,179,640
+239% +$159M 0.14% 160
2023
Q2 		$76.4M Buy
910,510
+349,906
+62% +$31.4M 0.05% 300
2023
Q1 		$46.3M Buy
560,604
+499,488
+817% +$32.2M 0.03% 395
2022
Q4 		$3.11M Buy
61,116
+48,711
+393% +$3.01M ﹤0.01% 979
2022
Q3 		$872K Sell
12,405
-1,175
-9% -$89K ﹤0.01% 1353
2022
Q2 		$897K Sell
13,580
-15
-0.1% -$946 ﹤0.01% 1398
2022
Q1 		$752K Buy
13,595
+2
+0% +$75 ﹤0.01% 1662
2021
Q4 		$393K Buy
+13,593
New +$362K ﹤0.01% 2043

Other funds holding LNTH

BlackRock
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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return

Janus Henderson Group's LNTH Position: Q1 2026 in Review

Janus Henderson Group reduced its Lantheus (LNTH) stake by 16% in Q1 2026, selling an estimated $66.9M and leaving 4,774,841 shares worth $362M. The position accounts for 0.17% of the portfolio, ranked #131.

Janus Henderson Group first reported a position in LNTH in Q4 2021 and has held it in 18 quarters since. The position peaked at $626M in Q1 2025. 407 funds tracked by Wall St. Rank hold LNTH as of Q1 2026.

  • Janus Henderson Group held 4,774,841 shares of Lantheus worth $362M as of Q1 2026.
  • Janus Henderson Group sold 932,406 Lantheus shares in Q1 2026, an estimated $66.9M.
  • Lantheus made up 0.17% of Janus Henderson Group's portfolio in Q1 2026, its #131 holding.
  • Janus Henderson Group first reported a position in Lantheus in Q4 2021 and has held it in 18 quarters since.
  • Janus Henderson Group's Lantheus position peaked at $626M in Q1 2025.
  • 407 funds tracked by Wall St. Rank held Lantheus as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.