Security Snapshot

Lantheus Holdings, Inc. - Common Stock (LNTH) Institutional Ownership

CUSIP: 516544103

13F Institutional Holders and Ownership History from Q2 2015 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

391

Shares (Excl. Options)

69,356,729

Price

$66.55

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Type / Class
Equity / Common Stock
Symbol
LNTH on Nasdaq
Shares outstanding
66,363,337
Price per share
$75.85
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
69,356,729
Total reported value
$4,615,385,932
% of total 13F portfolios
0.01%
Share change
-2,541,044
Value change
-$120,234,489
Number of holders
391
Price from insider filings
$75.85
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • LNTH - Lantheus Holdings, Inc. - Common Stock is tracked under CUSIP 516544103.
  • 391 institutions reported positions in Q4 2025.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 391 to 52 between Q4 2025 and Q1 2026.
  • Reported value moved from $4,615,385,932 to $157,611,086.

Why This Matters

  • 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.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 391 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 516544103?
CUSIP 516544103 identifies LNTH - Lantheus Holdings, Inc. - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of Lantheus Holdings, Inc. - Common Stock (LNTH) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
JANUS HENDERSON GROUP PLC 8.6% -12% $385,581,607 -$66,039,224 5,707,247 -15% JANUS HENDERSON GROUP PLC 31 Dec 2025
FMR LLC 6.5% -12% $225,651,564 -$42,273,833 4,399,524 -16% FMR LLC 30 Sep 2025
MORGAN STANLEY 2.5% -52% $110,854,948 -$144,367,275 1,640,837 -57% Morgan Stanley 31 Dec 2025

As of 31 Dec 2025, 391 institutional investors reported holding 69,356,729 shares of Lantheus Holdings, Inc. - Common Stock (LNTH). This represents 105% of the company’s total 66,363,337 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Lantheus Holdings, Inc. - Common Stock (LNTH) together control 79% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 12% 8,266,414 +0.01% 0.01% $550,129,840
VANGUARD GROUP INC 10% 6,699,381 -3.6% 0.01% $445,843,806
JANUS HENDERSON GROUP PLC 8.6% 5,707,247 -15% 0.17% $379,821,075
FARALLON CAPITAL MANAGEMENT LLC 8.2% 5,427,479 +56% 2.1% $361,198,727
FMR LLC 6.5% 4,323,526 +3% 0.01% $287,730,636
STATE STREET CORP 3.7% 2,427,254 -2.8% 0.01% $161,533,754
MORGAN STANLEY 2.6% 1,757,569 -55% 0.01% $116,966,337
GEODE CAPITAL MANAGEMENT, LLC 2.6% 1,726,521 -1.6% 0.01% $114,917,787
REINHART PARTNERS, LLC. 2.4% 1,562,576 +16% 3.1% $103,990,422
DIMENSIONAL FUND ADVISORS LP 2.1% 1,415,463 +3.2% 0.02% $94,202,296
Swedbank AB 1.9% 1,228,743 0% 0.08% $81,772,847
NORGES BANK 1.7% 1,144,955 0.01% $76,196,755
Carmignac Gestion 1.7% 1,122,000 +39% 1% $74,669,100
Point72 Asset Management, L.P. 1.5% 1,014,369 0.11% $67,506,257
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 1.4% 939,997 0% 0.09% $62,557,000
DEERFIELD MANAGEMENT COMPANY, L.P. 1.2% 827,999 0.71% $55,103,333
BANK OF AMERICA CORP /DE/ 1.2% 819,803 +58% 0% $54,557,891
PRICE T ROWE ASSOCIATES INC /MD/ 1.2% 817,247 +0.66% 0.01% $54,388,000
NORTHERN TRUST CORP 1.2% 798,127 -5.5% 0.01% $53,115,351
AMERICAN CENTURY COMPANIES INC 1.2% 769,030 +6.6% 0.03% $51,178,947
JPMORGAN CHASE & CO 1.1% 738,479 -5.5% 0% $49,145,776
TD Asset Management Inc 1.1% 711,894 -10% 0.04% $47,376,546
MACKENZIE FINANCIAL CORP 0.99% 657,674 +31% 0.05% $44,082,489
CITADEL ADVISORS LLC 0.97% 644,196 +24% 0.03% $42,871,243
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.97% 643,168 +2.1% 0.01% $42,802,830

Institutional Holders of Lantheus Holdings, Inc. - Common Stock (LNTH) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 2,078,415 $157,611,086 +$5,355,111 $75.85 52
2025 Q4 69,356,729 $4,615,385,932 -$120,234,489 $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
2019 Q4 38,542,403 $788,832,711 -$15,398,802 $20.51 153
2019 Q3 38,909,413 $974,882,210 +$41,898,769 $25.07 164
2019 Q2 37,135,084 $1,049,617,770 +$62,104,300 $28.30 192
2019 Q1 36,008,338 $881,512,123 +$1,272,111 $24.48 185
2018 Q4 36,162,699 $565,858,257 +$1,075,986 $15.65 143
2018 Q3 35,656,095 $533,021,931 +$1,251,262 $14.95 144
2018 Q2 35,669,451 $518,948,893 -$3,428,809 $14.55 153
2018 Q1 35,728,105 $568,184,532 +$21,608,532 $15.90 163
2017 Q4 34,412,822 $703,937,046 -$8,917,613 $20.45 163
2017 Q3 34,853,845 $620,422,493 +$49,706,660 $17.80 152
2017 Q2 32,066,573 $566,377,618 +$146,565,906 $17.65 139
2017 Q1 24,266,659 $303,375,625 +$28,499,092 $12.50 95
2016 Q4 22,564,417 $194,018,706 +$57,597,557 $8.60 80
2016 Q3 15,782,264 $130,666,668 +$41,910,050 $8.28 69
2016 Q2 10,766,698 $39,511,000 +$1,279,718 $3.67 38
2016 Q1 11,890,104 $22,468,000 -$570,957 $1.89 44
2015 Q4 12,098,711 $40,884,887 -$667,907 $3.38 46
2015 Q3 12,076,400 $51,914,778 +$872,080 $4.30 40
2015 Q2 11,727,548 $72,595,000 +$72,595,000 $6.19 15