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REGN in the 13F filings

Regeneron Pharmaceuticals · CUSIP 75886F107

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Sep 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 31 Oct 2024
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q2 2024 and Q3 2024; 24 listed it in both
Shares listed
23,740,191
combined, among listed positions
Reported value
$25.0bn
combined, at the quarter end

Among the 94 comparable managers: 17 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing REGN in Q3 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Fidelity (FMR LLC)10,362,701$10.9bn0.66%Trimmed-286,7735 Nov 2026 (the filing on sec.gov)
Capital World Investors4,298,387$4.5bn0.70%Trimmed-340,28013 Nov 2024 (the filing on sec.gov)
Dodge & Cox2,311,935$2.4bn1.37%Trimmed-3,75113 Nov 2024 (the filing on sec.gov)
T. Rowe Price Associates Inc1,275,303$1.3bn0.15%Added+342,42914 Nov 2024 (the filing on sec.gov)
Invesco Ltd1,161,173$1.2bn0.24%Added+244,75312 Nov 2024 (the filing on sec.gov)
Capital Research Global Investors644,868$678m0.14%Added+86,08113 Nov 2024 (the filing on sec.gov)
AllianceBernstein LP579,518$609m0.20%Trimmed-115,57914 Nov 2024 (the filing on sec.gov)
MFS Investment Management514,265$541m0.16%Trimmed-26,02812 Nov 2024 (the filing on sec.gov)
Neuberger Berman Group LLC449,590$473m0.37%Trimmed-6,21014 Nov 2024 (the filing on sec.gov)
Wellington Management Group LLP440,609$463m0.08%Trimmed-621,18214 Nov 2024 (the filing on sec.gov)
D. E. Shaw & Co.266,236$280m0.24%Added+11,82114 Nov 2024 (the filing on sec.gov)
AQR Capital Management LLC225,534$235m0.32%Added+36,24314 Nov 2024 (the filing on sec.gov)
Renaissance Technologies LLC211,423$222m0.33%Added+26,26113 Nov 2024 (the filing on sec.gov)
Millennium Management LLC201,174$211m0.10%Trimmed-65,85814 Nov 2024 (the filing on sec.gov)
Marshall Wace LLP134,004$141m0.17%Added+75,13114 Nov 2024 (the filing on sec.gov)
Jane Street Group LLC126,988$133munder 0.1%Trimmed-16,06515 Nov 2024 (the filing on sec.gov)
Woodline Partners LP99,417$105m0.88%Trimmed-82,48014 Nov 2024 (the filing on sec.gov)
Janus Henderson Group Ltd98,134$103m0.05%Trimmed-2,29014 Nov 2024 (the filing on sec.gov)
Acadian Asset Management LLC67,289$71m0.22%Trimmed-5,54112 Nov 2024 (the filing on sec.gov)
Man Group PLC60,521$64m0.17%Added+8,77714 Nov 2024 (the filing on sec.gov)
Viking Global Investors LP49,870$52m0.19%Newnew14 Nov 2024 (the filing on sec.gov)
Squarepoint Ops LLC41,100$43m0.07%Addedn.a.14 Nov 2024 (the filing on sec.gov)
Tudor Investment Corp37,651$40m0.14%Newnew14 Nov 2024 (the filing on sec.gov)
Hudson Bay Capital Management LP29,352$31m0.12%Added+13,29413 Nov 2024 (the filing on sec.gov)
Two Sigma Investments LP22,389$24m0.05%Newnew14 Nov 2024 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q2 2024 to Q3 2024, 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 (5)

Exited (1)

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.
31 in Q3 2024 to 22 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
REGN by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201320$8.0bnn.a.n.a.
Q3 201319$10.8bnn.a.n.a.
Q4 201317$8.9bnn.a.n.a.
Q1 201418$8.8bnn.a.n.a.
Q2 201420$8.4bnn.a.n.a.
Q3 201422$10.7bnn.a.n.a.
Q4 201416$12.3bnn.a.n.a.
Q1 201518$13.2bnn.a.n.a.
Q2 201516$14.7bnn.a.n.a.
Q3 201521$12.9bnn.a.n.a.
Q4 201520$15.3bnn.a.n.a.
Q1 201624$11.3bnn.a.n.a.
Q2 201620$10.5bnn.a.n.a.
Q3 201618$12.0bnn.a.n.a.
Q4 201622$10.4bnn.a.n.a.
Q1 201718$10.3bnn.a.n.a.
Q2 201723$13.6bnn.a.n.a.
Q3 201721$11.6bnn.a.n.a.
Q4 201727$9.4bnn.a.n.a.
Q1 201827$8.5bnn.a.n.a.
Q2 201824$9.2bnn.a.n.a.
Q3 201827$10.8bnn.a.n.a.
Q4 201828$9.9bnn.a.n.a.
Q1 201928$10.4bnn.a.n.a.
Q2 201929$8.3bnn.a.n.a.
Q3 201924$7.1bnn.a.n.a.
Q4 201918$9.0bnn.a.n.a.
Q1 202027$13.0bnn.a.n.a.
Q2 202023$19.8bnn.a.n.a.
Q3 202024$17.4bnn.a.n.a.
Q4 202026$15.2bnn.a.n.a.
Q1 202122$13.7bnn.a.n.a.
Q2 202127$15.3bnn.a.n.a.
Q3 202126$15.5bnn.a.n.a.
Q4 202128$16.3bnn.a.n.a.
Q1 202225$19.2bnn.a.n.a.
Q2 202226$16.5bnn.a.n.a.
Q3 202224$19.0bnn.a.n.a.
Q4 202230$20.2bnn.a.n.a.
Q1 202332$22.3bnn.a.n.a.
Q2 202328$18.8bnn.a.n.a.
Q3 202326$21.1bnn.a.n.a.
Q4 202335$21.9bn2214
Q1 202428$23.6bn1220
Q2 202428$25.6bn1515
Q3 202431$25.0bn1715
Q4 202427$13.8bn1712
Q1 202529$12.2bn2010
Q2 202532$9.3bn2410
Q3 202533$10.1bn2212
Q4 202533$16.3bn2023
Q1 202624$15.2bn1426
Q2 202622$10.6bn2415

Compare with…

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

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

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