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Thomas Steyer’s Lantheus LNTH Stock Holding History

Thomas Steyer’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 		$619M Hold
5,583,479
– – 2.86% 9
2026
Q1 		$424M Buy
5,583,479
+156,000
+3% +$11.2M 2.22% 18
2025
Q4 		$361M Buy
5,427,479
+1,950,252
+56% +$113M 1.56% 22
2025
Q3 		$178M Sell
3,477,227
-3,245,000
-48% -$203M 0.73% 40
2025
Q2 		$550M Buy
6,722,227
+699,000
+12% +$61.4M 2.31% 13
2025
Q1 		$588M Buy
6,023,227
+707,000
+13% +$66.1M 2.82% 9
2024
Q4 		$476M Buy
5,316,227
+2,361,000
+80% +$230M 2.09% 17
2024
Q3 		$324M Buy
2,955,227
+676,000
+30% +$70.2M 1.42% 24
2024
Q2 		$183M Buy
2,279,227
+796,000
+54% +$58.4M 0.79% 40
2024
Q1 		$92.3M Buy
1,483,227
+1,269,900
+595% +$74.7M 0.39% 47
2023
Q4 		$13.2M Sell
213,327
-1,385,173
-87% -$93.9M 0.06% 75
2023
Q3 		$111M Buy
1,598,500
+238,000
+17% +$17.4M 0.52% 38
2023
Q2 		$114M Buy
1,360,500
+1,176,500
+639% +$106M 0.57% 45
2023
Q1 		$15.2M Buy
+184,000
New +$11.9M 0.08% 88
2021
Q2 		– Sell
-2,250,000
Closed -$48.1M – 309
2021
Q1 		$48.1M Sell
2,250,000
-400,000
-15% -$7.26M 0.24% 73
2020
Q4 		$35.7M Hold
2,650,000
– – 0.22% 76
2020
Q3 		$33.6M Buy
2,650,000
+15,001
+0.6% +$206K 0.23% 74
2020
Q2 		$37.7M Buy
+2,634,999
New +$34.8M 0.3% 65

Other funds holding LNTH

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Thomas Steyer's LNTH Position: Q2 2026 in Review

Thomas Steyer held its Lantheus (LNTH) position steady in Q2 2026 at 5,583,479 shares worth $619M. The position accounts for 2.86% of the portfolio, ranked #9.

Thomas Steyer first reported a position in LNTH in Q2 2020 and has held it in 18 quarters since. 462 funds tracked by Wall St. Rank hold LNTH as of Q2 2026.

  • Thomas Steyer held 5,583,479 shares of Lantheus worth $619M as of Q2 2026.
  • Thomas Steyer left its Lantheus share count unchanged in Q2 2026.
  • Lantheus made up 2.86% of Thomas Steyer's portfolio in Q2 2026, its #9 holding.
  • Thomas Steyer first reported a position in Lantheus in Q2 2020 and has held it in 18 quarters since.
  • 462 funds tracked by Wall St. Rank held Lantheus as of Q2 2026.

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