LNTH

Lantheus Holdings Inc
Health CareUSCUSIP 516544103◍ Confluence graph
Tracked 13F Holders
392
-134 QoQ
13F Value (tracked)
$5.6B
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)30 adding · 26 trimming
Insider net (180d)$0

Who owns LNTH?

392 tracked 13F filers

392 tracked 13F filers disclose a position in LNTH as of the latest SEC 13F filings, a combined $5.6B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
3 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$620.7M
8.2M
−1.0%
Reduced · −83K sh
Q1 2026
2FARALLON CAPITAL MANAGEMENT LLC
$423.5M
5.6M
+2.9%
Added · +156K sh
Q1 2026
3JANUS HENDERSON GROUP PLC
$362.2M
4.8M
−16%
Reduced · −932K sh
Q1 2026
4FMR LLC
$350.9M
4.6M
+7.0%
Added · +303K sh
Q1 2026
5VANGUARD PORTFOLIO MANAGEMENT LLC
$240.8M
3.2M
First observed position
No prior filed position
Q1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$221.1M
2.9M
First observed position
No prior filed position
Q1 2026
7STATE STREET CORP
$277.4M
2.5M
+2.9%
Added · +71K sh
Q2 2026
8GEODE CAPITAL MANAGEMENT, LLC
$204.3M
1.8M
+4.3%
Added · +75K sh
Q2 2026
9AMERICAN CENTURY COMPANIES INC
$135.1M
1.8M
+132%
Added · +1.0M sh
Q1 2026
10MORGAN STANLEY
$124.9M
1.6M
−6.3%
Reduced · −111K sh
Q1 2026
11REINHART PARTNERS, LLC.
$118.7M
1.6M
+0.1%
Added · +2K sh
Q1 2026
12DIMENSIONAL FUND ADVISORS LP
$104.6M
1.4M
−2.5%
Reduced · −36K sh
Q1 2026
13Carmignac Gestion
$148.7M
1.3M
+0.9%
Added · +12K sh
Q2 2026
14Swedbank AB
$93.2M
1.2M
Held
Q1 2026
15NORGES BANK
$76.2M
1.1M
+187%
Added · +746K sh
Q4 2025
16TD ASSET MANAGEMENT INC
$86.0M
1.1M
+59%
Added · +422K sh
Q1 2026
17Point72 Asset Management, L.P.
$73.9M
974K
−4.0%
Reduced · −40K sh
Q1 2026
18PRICE T ROWE ASSOCIATES INC /MD/
$69.8M
920K
+13%
Added · +102K sh
Q1 2026
19UBS Group AG
$65.8M
868K
+119%
Added · +471K sh
Q1 2026
20DEERFIELD MANAGEMENT COMPANY, L.P.
$62.8M
828K
Held
Q1 2026
21NORTHERN TRUST CORP
$61.1M
805K
+0.8%
Added · +7K sh
Q1 2026
22JPMORGAN CHASE & CO
$54.0M
739K
+0.1%
Added · +994 sh
Q1 2026
23BROWN ADVISORY INC
$52.2M
688K
New
+688K sh
Q1 2026
24CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$49.9M
657K
+2.2%
Added · +14K sh
Q1 2026
25MARSHALL WACE, LLP
$46.4M
612K
+163%
Added · +379K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is LNTH being bought or sold by institutions?

Last quarter, 8 funds opened a new position in LNTH and 22 added to an existing one, while 26 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
8
funds
Added
22
funds
Reduced
26
funds
Exited
0
funds

Funds that own LNTH also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT211 funds$243.2B
NVIDIA CORPNVDA207 funds$360.5B
META PLATFORMS INC-CLASS AMETA205 funds$108.1B
AMAZON.COM INCAMZN202 funds$183.5B
APPLE INCAAPL201 funds$267.9B
ALPHABET INC-CL AGOOGL199 funds$145.6B
ELI LILLY & COLLY198 funds$70.2B
BROADCOM INCAVGO197 funds$139.0B
ALPHABET INC-CL CGOOG194 funds$118.1B
VISA INC-CLASS A SHARESV194 funds$57.2B
MICRON TECHNOLOGY INCMU194 funds$35.4B
LAM RESEARCH CORPLRCX192 funds$31.1B

Ranked by how many of LNTH's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Aug 20, 2025Dapice Joshua J.InsiderSell (S)3.4M$188.9M
Aug 20, 2025WEHRLY MARK CInsiderSell (S)3.4M$188.9M
Aug 19, 2025Dapice Joshua J.InsiderSell (S)41K$2.3M
Aug 19, 2025WEHRLY MARK CInsiderSell (S)41K$2.3M
Aug 13, 2025Blanchfield PaulPresidentSell (S)3K$164K
Jun 13, 2025Niedzwiecki DanielSee RemarksSell (S)6K$472K
Jun 9, 2025Marshall Robert J. Jr.CFO and TreasurerSell (S)3K$284K
Jun 9, 2025Marshall Robert J. Jr.CFO and TreasurerSell (S)9K$763K
Jun 9, 2025Marshall Robert J. Jr.CFO and TreasurerSell (S)27K$2.3M
Jun 9, 2025McHugh JulieDirectorSell (S)5K$424K
Jun 5, 2025Niedzwiecki DanielSee RemarksSell (S)6K$478K
Jun 5, 2025Blanchfield PaulPresidentSell (S)7K$526K

Institutional ownership over time

211 funds-153 since Q3 2024
0197394Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $997.7M · 3 values withheld

Share classes

Class13F holdersValue held
LNTHthis pagecs392 funds$5.6B
LNTH 2.625 12/15/27Sovereign/Corporate57 funds$624.7M

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

15 shown

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Connected entities for LNTH

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Ask your agent what changed in LNTH

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/LNTH/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for LNTH.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for LNTH. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.