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LNTH in the 13F filings

Lantheus HLDGS Inc · CUSIP 516544103

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
23
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 4 listed it in both
Shares listed
20,486,794
combined, among listed positions
Reported value
$1.6bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 13 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -173,456.

Managers listing LNTH in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

23 of 23 holders

ActionFiling
Farallon Capital Management LLC5,583,479$424m2.22%Added+156,00015 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd4,774,841$362m0.17%Trimmed-932,40618 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)4,626,453$351munder 0.1%Added+302,92715 May 2026 (the filing on sec.gov)
Point72 Asset Management LP974,210$74m0.09%Trimmed-40,15915 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc919,732$70munder 0.1%Added+102,48515 May 2026 (the filing on sec.gov)
Wellington Management Group LLP768,850$58munder 0.1%Added+652,47615 May 2026 (the filing on sec.gov)
Marshall Wace LLP611,747$46munder 0.1%Added+379,07015 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC539,382$41m0.05%Added+398,60115 May 2026 (the filing on sec.gov)
Invesco Ltd362,562$28munder 0.1%Trimmed-3,56212 May 2026 (the filing on sec.gov)
Citadel Advisors LLC284,544$22munder 0.1%Trimmed-359,65215 May 2026 (the filing on sec.gov)
Millennium Management LLC255,237$19munder 0.1%Added+81,19415 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP216,322$16m0.13%Newnew14 May 2026 (the filing on sec.gov)
AllianceBernstein LP134,311$8.9munder 0.1%Added+58915 May 2026 (the filing on sec.gov)
AQR Capital Management LLC115,572$8.5munder 0.1%Trimmed-288,05015 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC77,182$5.9munder 0.1%Added+1,40014 May 2026 (the filing on sec.gov)
Verition Fund Management LLC60,000$4.6munder 0.1%Trimmed-27,50015 May 2026 (the filing on sec.gov)
Man Group PLC58,131$4.4munder 0.1%Trimmed-59215 May 2026 (the filing on sec.gov)
Bridgewater Associates LP43,720$3.3munder 0.1%Trimmed-122,98615 May 2026 (the filing on sec.gov)
Woodline Partners LP42,382$3.2munder 0.1%Held015 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP23,785$1.8munder 0.1%Added+3,79515 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC8,341$633kunder 0.1%Added+59627 Oct 2026 (the filing on sec.gov)
Jane Street Group LLC4,048$307kunder 0.1%Trimmed-32,51412 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC1,963$148kunder 0.1%Newnew13 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (5)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
7 in Q3 2024 to 10 in Q2 2026

Tracked managers listing it, at least.

051015202017201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
LNTH by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20161$4.6mn.a.n.a.
Q4 20161$12mn.a.n.a.
Q1 20172$17mn.a.n.a.
Q2 20171$22mn.a.n.a.
Q3 20171$25mn.a.n.a.
Q4 20171$21mn.a.n.a.
Q1 20182$9.2mn.a.n.a.
Q1 20191$286kn.a.n.a.
Q2 20192$51mn.a.n.a.
Q4 20191$6.4mn.a.n.a.
Q1 20202$6.7mn.a.n.a.
Q2 20202$38mn.a.n.a.
Q3 20201$34mn.a.n.a.
Q4 20201$36mn.a.n.a.
Q1 20212$71mn.a.n.a.
Q2 20213$71mn.a.n.a.
Q3 20212$57mn.a.n.a.
Q4 20212$64mn.a.n.a.
Q1 20228$299mn.a.n.a.
Q2 20229$313mn.a.n.a.
Q3 20229$357mn.a.n.a.
Q4 202212$312mn.a.n.a.
Q1 202316$723mn.a.n.a.
Q2 202318$897mn.a.n.a.
Q3 20239$628mn.a.n.a.
Q4 20238$470m36
Q1 20249$431m62
Q2 20248$577m52
Q3 20247$830m61
Q4 20247$1.1bn60
Q1 20255$1.3bn50
Q2 20259$1.4bn71
Q3 20258$572m34
Q4 20256$862m1320
Q1 20266$963m1314
Q2 202610$1.6bn209

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

LNTH and LLY →LNTH and JNJ →LNTH and VRTX →Choose a stock to compare with LNTH →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own LNTH, latest filings →Back to the 13F Explorer →