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LNTH · Lantheus Holdings, Inc.

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Market Cap
$6.58B
Shares
65.27M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 468
Total Value: $8,406,167,076
Total Shares: 75,772,196
Showing 1–100 of 477 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 468 13F filers · Δ vs Mar 31, 2026
Top Holder
11.1%
Sep 2023 → Jun 2026 · range 10.4% – 12.2%
−0.1 pts
Top 5
34.7%
Sep 2023 → Jun 2026 · range 30.9% – 43.6%
−1.3 pts
Top 10
50.5%
Sep 2023 → Jun 2026 · range 41.8% – 56.3%
+0.2 pts
HHI
366
Sep 2023 → Jun 2026 · range 316 – 465
Broadly held−4

Quarterly Activity

vs Mar 31, 2026
New
98
Increased
151
Decreased
145
Sold Out
39
Unchanged
74
Holder count: +59
Institutional value: +51.3%
Shares held: +3.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 477
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1521036 CUSIP 516544103 13F (30d) 333 filings 329 filers Visit website Investor relations