Latest Period
Q1 2026
Security Snapshot
Lantheus Holdings, Inc. - Common Stock (LNTH) Institutional Ownership
CUSIP: 516544103
13F Institutional Holders and Ownership History from Q2 2015 to Q1 2026
Institutions Reporting
403
Shares (Excl. Options)
72,663,112
Price
$75.85
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- Security type / class
- Equity / Common Stock
- Symbol
- LNTH on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 72,663,112
- Total 13F value
- $5,507,796,662
- Portfolio coverage rank
- 0.01%
- Share change
- +3,363,877
- Value change
- +$280,959,725
- Number of holders
- 403
- Shares outstanding
- 64,524,878
- SEC-reported price per share
- $103.00
- Insider filing price
- $103.00
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- LNTH - Lantheus Holdings, Inc. - Common Stock is tracked under CUSIP 516544103.
- 403 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 391 to 403 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $4,615,385,932 to $5,507,796,662.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 403 institutions filings for Q1 2026.
Security key
516544103
Latest holder period
Q1 2026
13F holders
403
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
LNTH full holder history
Lantheus Holdings, Inc. SEC filings
Lantheus Holdings, Inc. company facts
Lantheus Holdings, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 516544103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
LNTH
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC | 7.4% | -13% | $384,804,436 | -$75,142,600 | 4,774,841 | -16% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| FMR LLC | 6.5% | -12% | $225,651,564 | -$42,273,833 | 4,399,524 | -16% | FMR LLC | 30 Sep 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.2% | $259,514,252 | 3,421,414 | Vanguard Capital Management | 31 Mar 2026 | |||
| MORGAN STANLEY | 2.5% | -52% | $110,854,948 | -$144,367,275 | 1,640,837 | -57% | Morgan Stanley | 31 Dec 2025 |
As of 31 Mar 2026, 403 institutional investors reported holding 72,663,112 shares of Lantheus Holdings, Inc. - Common Stock (LNTH). This represents 113% of the company’s total 64,524,878 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
80%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | 8,183,193 | -1% | 0.01% | $620,695,194 |
| FARALLON CAPITAL MANAGEMENT LLC | 8.7% | 5,583,479 | +2.9% | 2.8% | $423,506,882 |
| JANUS HENDERSON GROUP PLC | 7.4% | 4,774,841 | -16% | 0.17% | $362,171,897 |
| FMR LLC | 7.2% | 4,626,453 | +7% | 0.02% | $350,916,434 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.9% | 3,174,274 | 0% | 0.01% | $240,768,683 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 2,914,314 | 0% | 0.01% | $221,050,717 |
| STATE STREET CORP | 3.8% | 2,429,803 | +0.11% | 0.01% | $184,300,558 |
| AMERICAN CENTURY COMPANIES INC | 2.8% | 1,781,106 | +132% | 0.07% | $135,096,890 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.7% | 1,765,952 | +2.3% | 0.01% | $133,970,958 |
| MORGAN STANLEY | 2.6% | 1,646,463 | -6.3% | 0.01% | $124,884,266 |
| REINHART PARTNERS, LLC. | 2.4% | 1,564,878 | +0.15% | 3.4% | $118,697,159 |
| DIMENSIONAL FUND ADVISORS LP | 2.1% | 1,379,570 | -2.5% | 0.02% | $104,625,767 |
| Carmignac Gestion | 2.1% | 1,328,000 | +18% | 1.5% | $100,728,800 |
| Swedbank AB | 1.9% | 1,228,743 | 0% | 0.1% | $93,200,157 |
| TD Asset Management Inc | 1.8% | 1,133,518 | +59% | 0.07% | $85,977,340 |
| Point72 Asset Management, L.P. | 1.5% | 974,210 | -4% | 0.13% | $73,893,829 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.4% | 919,732 | +13% | 0.01% | $69,763,000 |
| UBS Group AG | 1.3% | 867,675 | +119% | 0.01% | $65,813,149 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.3% | 840,417 | -11% | 0.11% | $63,746,000 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 1.3% | 827,999 | 0% | 0.74% | $62,803,724 |
| NORTHERN TRUST CORP | 1.2% | 804,923 | +0.85% | 0.01% | $61,053,410 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.2% | 768,850 | +561% | 0.01% | $58,317,272 |
| JPMORGAN CHASE & CO | 1.1% | 739,473 | +0.13% | 0% | $54,048,081 |
| MACKENZIE FINANCIAL CORP | 1.1% | 714,561 | +8.6% | 0.07% | $54,199,452 |
| BROWN ADVISORY INC | 1.1% | 687,607 | 0.09% | $52,154,977 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
44
Latest
Q1 2026
Rows shown
1-25 of 44
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 72,663,112 | $5,507,796,662 | +$280,959,725 | $75.85 | 403 |
| 2025 Q4 | 69,356,729 | $4,615,385,932 | -$120,542,537 | $66.55 | 391 |
| 2025 Q3 | 71,275,013 | $3,655,826,076 | -$702,884,293 | $51.29 | 414 |
| 2025 Q2 | 81,091,154 | $6,636,283,434 | +$173,389,753 | $81.86 | 471 |
| 2025 Q1 | 78,485,692 | $7,650,596,245 | +$358,282,348 | $97.60 | 519 |
| 2024 Q4 | 74,667,659 | $6,681,281,434 | +$329,054,493 | $89.46 | 481 |
| 2024 Q3 | 70,391,472 | $7,718,986,133 | +$287,753,264 | $109.75 | 494 |
| 2024 Q2 | 68,315,500 | $5,488,611,304 | +$106,027,339 | $80.29 | 445 |
| 2024 Q1 | 67,174,386 | $4,179,441,832 | -$124,321,713 | $62.24 | 399 |
| 2023 Q4 | 69,497,925 | $4,308,552,082 | -$81,165,947 | $62.00 | 397 |
| 2023 Q3 | 70,477,282 | $4,896,250,569 | +$131,735,244 | $69.48 | 392 |
| 2023 Q2 | 68,029,220 | $5,708,609,888 | +$67,862,585 | $83.92 | 429 |
| 2023 Q1 | 67,095,796 | $5,537,157,912 | +$192,713,278 | $82.56 | 383 |
| 2022 Q4 | 66,268,402 | $3,378,087,249 | -$156,520,489 | $50.96 | 364 |
| 2022 Q3 | 67,572,623 | $4,752,555,521 | -$51,621,782 | $70.33 | 347 |
| 2022 Q2 | 67,203,681 | $4,438,480,524 | +$82,473,476 | $66.03 | 315 |
| 2022 Q1 | 66,259,815 | $3,665,460,396 | +$77,255,909 | $55.31 | 270 |
| 2021 Q4 | 64,907,617 | $1,871,923,137 | +$30,559,663 | $28.89 | 195 |
| 2021 Q3 | 62,998,737 | $1,617,570,105 | +$40,213,233 | $25.68 | 176 |
| 2021 Q2 | 64,087,323 | $1,771,044,946 | +$115,879,870 | $27.64 | 190 |
| 2021 Q1 | 61,246,334 | $1,308,918,977 | +$58,477,027 | $21.37 | 158 |
| 2020 Q4 | 58,916,886 | $795,199,618 | +$4,694,652 | $13.49 | 152 |
| 2020 Q3 | 58,571,534 | $742,079,043 | +$11,922,538 | $12.67 | 168 |
| 2020 Q2 | 57,378,114 | $820,595,830 | +$241,341,195 | $14.30 | 184 |
| 2020 Q1 | 40,653,087 | $518,528,999 | +$25,659,256 | $12.76 | 156 |