L3VLUP
Quarter end
31 Mar 2026
the date the book describes
Filed
15 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
19
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 5 listed it in both
Shares listed
39,922,071
combined, among listed positions
Reported value
$722m
combined, at the quarter end

Among the 91 comparable managers: 15 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +3,508,804.

Managers listing LEGN 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.

19 of 19 holders

ActionFiling
Fidelity (FMR LLC)25,696,740$465munder 0.1%Added+1,428,51715 May 2026 (the filing on sec.gov)
Point72 Asset Management LP3,886,017$70m0.09%Added+1,101,21115 May 2026 (the filing on sec.gov)
Artisan Partners LP2,254,488$41m0.07%Trimmed-86,58613 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,890,396$34munder 0.1%Added+1,364,32615 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC1,527,336$28munder 0.1%Added+945,18213 May 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP876,351$16m0.05%Added+301,35113 May 2026 (the filing on sec.gov)
MFS Investment Management574,898$10munder 0.1%Added+94,75514 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC521,800$9.4munder 0.1%Added+119,00014 May 2026 (the filing on sec.gov)
Citadel Advisors LLC516,980$9.4munder 0.1%Added+338,94015 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC479,480$8.7munder 0.1%Added+69,50615 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP406,901$7.4munder 0.1%Added+315,17614 May 2026 (the filing on sec.gov)
Marshall Wace LLP287,123$5.2munder 0.1%Trimmed-468,83015 May 2026 (the filing on sec.gov)
Millennium Management LLC284,911$5.2munder 0.1%Added+207,71715 May 2026 (the filing on sec.gov)
Walleye Capital LLC235,415$4.3munder 0.1%Trimmed-64,04813 May 2026 (the filing on sec.gov)
Woodline Partners LP205,870$3.7munder 0.1%Added+79315 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP182,364$3.3munder 0.1%Added+29,08915 May 2026 (the filing on sec.gov)
Tudor Investment Corp55,102$997kunder 0.1%Added+1,80215 May 2026 (the filing on sec.gov)
Man Group PLC24,604$445kunder 0.1%Trimmed-37,10015 May 2026 (the filing on sec.gov)
Invesco Ltd15,295$277kunder 0.1%Added+1,58512 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 (0)

No new position among listed positions.

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.
9 in Q3 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

051015202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
LEGN by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20204$159mn.a.n.a.
Q3 20202$116mn.a.n.a.
Q4 20203$123mn.a.n.a.
Q1 20214$170mn.a.n.a.
Q2 20214$178mn.a.n.a.
Q3 20215$387mn.a.n.a.
Q4 20216$401mn.a.n.a.
Q1 20227$338mn.a.n.a.
Q2 20229$993mn.a.n.a.
Q3 20228$847mn.a.n.a.
Q4 20229$1.1bnn.a.n.a.
Q1 202310$1.2bnn.a.n.a.
Q2 202311$2.5bnn.a.n.a.
Q3 202312$2.4bnn.a.n.a.
Q4 202311$2.1bn65
Q1 202410$2.1bn54
Q2 20248$1.6bn54
Q3 20249$1.8bn72
Q4 202410$523m64
Q1 20258$916m44
Q2 20256$1.1bn60
Q3 20255$1.1bn50
Q4 20256$679m1411
Q1 20264$155m159
Q2 20265$1.0bn913

Compare with…

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

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

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 LEGN, latest filings →Back to the 13F Explorer →