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SCHEDULE 13D/A Filed 2026-09-23 Event 2026-09-21 SEC 0001193125-26-399446 →

Lantheus Holdings, Inc. → Perspective Therapeutics, Inc. CATX

Stake: 7.70% Shares: 8,739,011 CUSIP: 46489V302 Class: Common Stock, $0.001 par value

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
5 filings by this filer
4 other filings in the data moat
Short Interest · settle 2026-09-30
DTC 5.52
16,570,625 shares short · -27.3% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $864K
Point72 Asset Mgmt

Other 13D/G Filings on Perspective Therapeutics, Inc.

FiledFormFilerStakeShares
2026-09-04 SCHEDULE 13D/A Lantheus Holdings, Inc. 10.00% 11,440,513 view →
2026-07-20 SCHEDULE 13G MILLENNIUM MANAGEMENT LLC — — view →
2026-06-30 SCHEDULE 13G MILLENNIUM MANAGEMENT LLC — — view →

Other Filings by Lantheus Holdings, Inc.

FiledFormIssuerStakeShares
2026-09-04 SCHEDULE 13D Radiopharm Theranostics Limited 20.90% 792,958,513 view →
2026-09-04 SCHEDULE 13D/A Perspective Therapeutics, Inc. 10.00% 11,440,513 view →
2026-09-04 SCHEDULE 13G Radiopharm Theranostics Limited — — view →
2020-06-23 SC PROGENICS PHARMACEUTICALS INC — — view →

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