What does CUSIP 516544103 represent in this 13F holders report?

CUSIP 516544103 is the security identifier for LNTH - Lantheus Holdings, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held LNTH - Lantheus Holdings, Inc. - Common Stock in Q1 2026?

404 institutional investors reported LNTH - Lantheus Holdings, Inc. - Common Stock for Q1 2026. Use the holders table for investor-level position and value details.

Lantheus Holdings, Inc. - Common Stock (LNTH)

CUSIP: 516544103

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common Stock
Total 13F shares: 72,663,113
Total 13F value: $5,507,796,738
Share change: +3,363,878
Put/Call ratio: 69%
SEC-reported price per share: $75.85
Number of holders: 404
Value change: +$280,959,801
Number of buys: 204
Number of sells: 178
Shares outstanding: 65,223,182

Security key

516544103

Report period

Q1 2026

Institutions

404

Top holders

LNTH full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Lantheus Holdings, Inc. SEC filings Lantheus Holdings, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 516544103

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of LNTH - Lantheus Holdings, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Farallon Capital Partners...

Disclosed value leader

BlackRock, Inc.

Comparable rows

15/15

Latest evidence

31 Mar 2026

13D/G 13F 3/4/5 Lead comparable stake: 8.2% 13D/G row: Farallon Capital Partners, L.P. Showing 1-6 of 15 holder rows.

Quick read

Farallon Capital Partners, L.P. leads the comparable SEC ownership view at 8.2%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Farallon Capital Partners, L.P.'s linked filing trail.

Comparable ownership Top 5

Farallon Capital Partners, L.P. 8.2%

Janus Henderson Group Ltd. 7.4%

FMR LLC 6.5%

VANGUARD CAPITAL MANAGEMENT LLC 5.2%

MORGAN STANLEY 2.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Farallon Capital Partners, L.P.	13D/G Dapice Joshua J. 13D/G	8.2%	— 5,427,479 shares	+$6,689,559	31 Dec 2025
Janus Henderson Group Ltd.	13D/G 13F JANUS HENDERSON GROUP PLC · Company 13D/G 13F	7.4%	$384,804,436 4,774,841 shares	-$75,142,600	31 Mar 2026
FMR LLC	13F 13D/G Company 13F 13D/G	6.5% from 13D/G	$287,730,636 4,323,526 shares	—	31 Dec 2025
VANGUARD CAPITAL MANAGEMENT LLC	13D/G Vanguard Capital Management 13D/G	5.2%	$259,514,252 3,421,414 shares	$0	31 Mar 2026
MORGAN STANLEY	13F 13D/G Company 13F 13D/G	2.5% from 13D/G	$116,966,337 1,757,569 shares	—	31 Dec 2025
FARALLON PARTNERS L L C/CA	3/4/5 Member of a Group Owning 10%, 10%+ Owner 3/4/5	5.3%	$195,246,296 3,477,227 shares	-$191,213,690	19 Aug 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

404

72,663,113

Rows available

404

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders

404

Q1 2026 holders

404

Holder diff

Investor	Q1 2026 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend