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Osterweis Capital Management’s Lantheus LNTH Stock Holding History

Osterweis 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
Q3 		– Sell
-439
Closed -$35.9K – 290
2025
Q2 		$35.9K Buy
+439
New +$38.6K ﹤0.01% 233
2024
Q3 		– Sell
-63,650
Closed -$5.11M – 198
2024
Q2 		$5.11M Sell
63,650
-80,760
-56% -$5.92M 0.26% 81
2024
Q1 		$8.99M Buy
144,410
+74,855
+108% +$4.41M 0.53% 53
2023
Q4 		$4.31M Sell
69,555
-14,950
-18% -$1.01M 0.27% 81
2023
Q3 		$5.87M Buy
84,505
+29,980
+55% +$2.19M 0.43% 66
2023
Q2 		$4.58M Sell
54,525
-49,865
-48% -$4.47M 0.3% 79
2023
Q1 		$8.62M Sell
104,390
-11,810
-10% -$762K 0.59% 53
2022
Q4 		$5.92M Buy
116,200
+33,195
+40% +$2.05M 0.43% 67
2022
Q3 		$5.84M Buy
83,005
+5,170
+7% +$392K 0.44% 65
2022
Q2 		$5.14M Buy
+77,835
New +$4.91M 0.38% 70

Other funds holding LNTH

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $209B AUM 37.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
FCM
Farallon Capital Management San Francisco, California $21.7B AUM 79.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return

Osterweis Capital Management's LNTH Position: Q3 2025 in Review

Osterweis Capital Management sold out of Lantheus (LNTH) in Q3 2025, closing a stake of 439 shares — an estimated $35.9K sold.

Osterweis Capital Management first reported a position in LNTH in Q2 2022 and held it in 10 quarters. The position peaked at $8.99M in Q1 2024. 418 funds tracked by Wall St. Rank hold LNTH as of Q3 2025.

  • Osterweis Capital Management reported no remaining Lantheus position as of Q3 2025 after selling out during the quarter.
  • Osterweis Capital Management sold 439 Lantheus shares in Q3 2025, an estimated $35.9K.
  • Osterweis Capital Management first reported a position in Lantheus in Q2 2022 and held it in 10 quarters.
  • Osterweis Capital Management's Lantheus position peaked at $8.99M in Q1 2024.
  • 418 funds tracked by Wall St. Rank held Lantheus as of Q3 2025.

Based on Osterweis Capital Management's 13F filing for Q3 2025, filed 14 Nov 2025.