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Showing 8 of 21 quarters

Position history for William Blair Investment Management, LLCWilliam Blair Investment Management, LLC's holdings in Lantheus Holdings, Inc.

Yes. William Blair Investment Management holds 232,597 shares of LNTH (Lantheus Holdings), worth $25.8M, as of its Q2 2026 13F filing. It reduced the position by 166,954 shares (-41.8%) from Q1 2026. William Blair Investment Management has held LNTH since Q2 2021, across 21 quarterly 13F filings. LNTH is 0.1% of William Blair Investment Management's reported 13F portfolio.

Current Value

$25.8M

Current Shares

232,597

Total Value Change

-$14.9M

Total Shares Change

-138,482

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
232,597
-41.8%
$25.8M0.1%$110.94
0
2026-Q1
Decreased
399,551
-23.5%
$30.3M0.1%$78.84
0
2025-Q4
Decreased
522,177
-9.1%
$34.8M0.1%$67.16
0
2025-Q3
Increased
574,681
+46.7%
$29.5M0.1%$50.62
39
2025-Q2
Increased
391,622
+7.7%
$32.1M0.1%$81.49
31
2025-Q1
Decreased
363,767
-4.3%
$35.5M0.1%$96.16
0
2024-Q4
Increased
380,324
+2.5%
$34M0.1%$89.13
30
2024-Q3
Decreased
371,079
-26.6%
$40.7M0.1%$107.36
0

Other major holders of LNTH: BlackRock, Inc., Vanguard Group Inc.

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