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GAM Holding’s Lantheus LNTH Stock Holding History

GAM Holding’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
Q4 		– Sell
-12,213
Closed -$626K – 321
2025
Q3 		$626K Sell
12,213
-210
-2% -$13.1K 0.04% 218
2025
Q2 		$1.02M Buy
12,423
+4,541
+58% +$399K 0.07% 190
2025
Q1 		$769K Buy
7,882
+1,307
+20% +$122K 0.06% 171
2024
Q4 		$588K Buy
+6,575
New +$640K 0.04% 167

Other funds holding LNTH

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 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
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

GAM Holding's LNTH Position: Q4 2025 in Review

GAM Holding sold out of Lantheus (LNTH) in Q4 2025, closing a stake of 12,213 shares — an estimated $626K sold.

GAM Holding first reported a position in LNTH in Q4 2024 and held it in 4 quarters. The position peaked at $1.02M in Q2 2025. 391 funds tracked by Wall St. Rank hold LNTH as of Q4 2025.

  • GAM Holding reported no remaining Lantheus position as of Q4 2025 after selling out during the quarter.
  • GAM Holding sold 12,213 Lantheus shares in Q4 2025, an estimated $626K.
  • GAM Holding first reported a position in Lantheus in Q4 2024 and held it in 4 quarters.
  • GAM Holding's Lantheus position peaked at $1.02M in Q2 2025.
  • 391 funds tracked by Wall St. Rank held Lantheus as of Q4 2025.

Based on GAM Holding's 13F filing for Q4 2025, filed 17 Feb 2026.