L3VLUP
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 5 Feb 2026
Managers listing it
41
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 15 listed it in both
Shares listed
48,225,364
combined, among listed positions
Reported value
$2.9bn
combined, at the quarter end

Among the 92 comparable managers: 24 buyers (opened or added shares) and 19 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,516,856.

Managers listing BMRN in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

41 of 41 holders

ActionFiling
Dodge & Cox14,572,384$866m0.47%Trimmed-114,41713 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC6,686,916$395m0.21%Added+754,80717 Feb 2026 (the filing on sec.gov)
Viking Global Investors LP6,036,936$359m0.95%Trimmed-2,285,24317 Feb 2026 (the filing on sec.gov)
Millennium Management LLC3,037,616$181m0.08%Added+410,40617 Feb 2026 (the filing on sec.gov)
Capital Research Global Investors2,547,287$151munder 0.1%Added+9,69111 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,837,071$109munder 0.1%Added+1,444,25617 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC1,828,344$109m0.12%Added+439,82013 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC1,364,691$81munder 0.1%Added+966,84417 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC1,324,971$79m0.12%Trimmed-568,60012 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,004,029$60munder 0.1%Added+728,79117 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP849,744$51munder 0.1%Added+475,03613 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP785,095$47munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP670,002$40m0.13%Trimmed-23,89213 Feb 2026 (the filing on sec.gov)
Freestone Grove Partners LP491,902$29m0.21%Added+15,46617 Feb 2026 (the filing on sec.gov)
Invesco Ltd457,604$27munder 0.1%Trimmed-86,79219 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC444,890$26m0.09%Trimmed-156,15617 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP438,817$26munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Man Group PLC361,495$21munder 0.1%Trimmed-1,131,88417 Feb 2026 (the filing on sec.gov)
Moore Capital Management LP325,000$19m0.28%Newnew17 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP310,891$18munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd276,330$16munder 0.1%Added+39,30217 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP264,916$16munder 0.1%Trimmed-76,87517 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC257,419$15m0.07%Trimmed-217,97917 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP229,961$14munder 0.1%Trimmed-145,72213 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC222,467$13munder 0.1%Added+150,65513 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, 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.

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.
16 in Q3 2024 to 12 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BMRN by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201314$2.3bnn.a.n.a.
Q3 201314$2.8bnn.a.n.a.
Q4 201311$2.5bnn.a.n.a.
Q1 20148$2.1bnn.a.n.a.
Q2 20149$1.9bnn.a.n.a.
Q3 20148$2.5bnn.a.n.a.
Q4 201412$3.3bnn.a.n.a.
Q1 201515$5.4bnn.a.n.a.
Q2 201514$6.3bnn.a.n.a.
Q3 201520$5.1bnn.a.n.a.
Q4 201514$4.8bnn.a.n.a.
Q1 201610$3.4bnn.a.n.a.
Q2 201611$2.7bnn.a.n.a.
Q3 201617$3.7bnn.a.n.a.
Q4 201613$3.0bnn.a.n.a.
Q1 201711$3.2bnn.a.n.a.
Q2 201714$3.2bnn.a.n.a.
Q3 201716$3.9bnn.a.n.a.
Q4 201716$3.8bnn.a.n.a.
Q1 201817$3.3bnn.a.n.a.
Q2 201814$3.6bnn.a.n.a.
Q3 201814$3.6bnn.a.n.a.
Q4 201813$3.0bnn.a.n.a.
Q1 201915$3.1bnn.a.n.a.
Q2 201919$3.0bnn.a.n.a.
Q3 201913$2.1bnn.a.n.a.
Q4 201915$3.0bnn.a.n.a.
Q1 202014$2.5bnn.a.n.a.
Q2 202011$3.6bnn.a.n.a.
Q3 202012$3.0bnn.a.n.a.
Q4 202012$3.7bnn.a.n.a.
Q1 202110$3.1bnn.a.n.a.
Q2 202111$3.4bnn.a.n.a.
Q3 202114$3.0bnn.a.n.a.
Q4 202114$3.4bnn.a.n.a.
Q1 202219$3.0bnn.a.n.a.
Q2 202221$2.9bnn.a.n.a.
Q3 202225$3.1bnn.a.n.a.
Q4 202226$4.0bnn.a.n.a.
Q1 202320$3.3bnn.a.n.a.
Q2 202318$2.9bnn.a.n.a.
Q3 202318$2.9bnn.a.n.a.
Q4 202322$4.1bn148
Q1 202419$3.6bn164
Q2 202416$3.3bn106
Q3 202416$3.0bn98
Q4 202414$3.0bn112
Q1 202516$3.3bn123
Q2 202516$2.5bn125
Q3 202516$2.3bn105
Q4 202521$2.4bn2419
Q1 202615$2.6bn1426
Q2 202612$2.2bn1322

Compare with…

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

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

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