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Atika Capital Management’s Lantheus LNTH Stock Holding History

Atika 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
2025
Q2 		– Sell
-45,100
Closed -$4.4M – 70
2025
Q1 		$4.4M Sell
45,100
-12,000
-21% -$1.12M 0.62% 52
2024
Q4 		$5.11M Sell
57,100
-15,900
-22% -$1.55M 0.54% 63
2024
Q3 		$8.01M Buy
+73,000
New +$7.58M 0.82% 44
2023
Q4 		– Sell
-178,000
Closed -$12.4M – 86
2023
Q3 		$12.4M Buy
+178,000
New +$13M 1.62% 28

Other funds holding LNTH

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
FCM
Farallon Capital Management San Francisco, California $17.5B AUM 50.95% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Atika Capital Management's LNTH Position: Q2 2025 in Review

Atika Capital Management sold out of Lantheus (LNTH) in Q2 2025, closing a stake of 45,100 shares — an estimated $4.4M sold.

Atika Capital Management first reported a position in LNTH in Q3 2023 and held it in 4 quarters. The position peaked at $12.4M in Q3 2023. 475 funds tracked by Wall St. Rank hold LNTH as of Q2 2025.

  • Atika Capital Management reported no remaining Lantheus position as of Q2 2025 after selling out during the quarter.
  • Atika Capital Management sold 45,100 Lantheus shares in Q2 2025, an estimated $4.4M.
  • Atika Capital Management first reported a position in Lantheus in Q3 2023 and held it in 4 quarters.
  • Atika Capital Management's Lantheus position peaked at $12.4M in Q3 2023.
  • 475 funds tracked by Wall St. Rank held Lantheus as of Q2 2025.

Based on Atika Capital Management's 13F filing for Q2 2025, filed 13 Aug 2025.