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Sarissa Capital Management’s Lantheus LNTH Stock Holding History

Sarissa 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
2026
Q2 		$18.5M Hold
166,919
– – 10.41% 6
2026
Q1 		$12.7M Sell
166,919
-14,531
-8% -$1.04M 8.03% 6
2025
Q4 		$12.1M Hold
181,450
– – 5.42% 6
2025
Q3 		$9.31M Buy
181,450
+85,199
+89% +$5.32M 5.16% 6
2025
Q2 		$7.88M Sell
96,251
-3,749
-4% -$329K 5.1% 6
2025
Q1 		$9.76M Buy
100,000
+37,000
+59% +$3.46M 6.31% 6
2024
Q4 		$5.64M Buy
63,000
+37,000
+142% +$3.6M 1.75% 7
2024
Q3 		$2.85M Buy
+26,000
New +$2.7M 0.71% 8

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
JT
Jupiter Topco New York $245B AUM
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
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Sarissa Capital Management's LNTH Position: Q2 2026 in Review

Sarissa Capital Management held its Lantheus (LNTH) position steady in Q2 2026 at 166,919 shares worth $18.5M. The position accounts for 10.41% of the portfolio, ranked #6.

Sarissa Capital Management first reported a position in LNTH in Q3 2024 and has held it in 8 quarters since. 466 funds tracked by Wall St. Rank hold LNTH as of Q2 2026.

  • Sarissa Capital Management held 166,919 shares of Lantheus worth $18.5M as of Q2 2026.
  • Sarissa Capital Management left its Lantheus share count unchanged in Q2 2026.
  • Lantheus made up 10.41% of Sarissa Capital Management's portfolio in Q2 2026, its #6 holding.
  • Sarissa Capital Management first reported a position in Lantheus in Q3 2024 and has held it in 8 quarters since.
  • 466 funds tracked by Wall St. Rank held Lantheus as of Q2 2026.

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