L3VLUP
Quarter end
30 Sep 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 1 Nov 2024
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q2 2024 and Q3 2024; 22 listed it in both
Shares listed
56,520,431
combined, among listed positions
Reported value
$26.8bn
combined, at the quarter end

Among the 94 comparable managers: 15 buyers (opened or added shares) and 13 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 MCO 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
Berkshire Hathaway Inc24,669,778$11.7bn4.40%Held014 Nov 2024 (the filing on sec.gov)
TCI Fund Management Ltd13,246,769$6.3bn14.28%Held014 Nov 2024 (the filing on sec.gov)
Fidelity (FMR LLC)6,581,036$3.1bn0.19%Added+723,2265 Nov 2026 (the filing on sec.gov)
Akre Capital Management LLC3,362,880$1.6bn13.28%Trimmed-858,22413 Nov 2024 (the filing on sec.gov)
MFS Investment Management2,075,719$985m0.29%Added+502,89112 Nov 2024 (the filing on sec.gov)
Baillie Gifford & Co2,052,045$974m0.73%Trimmed-368,8075 Nov 2024 (the filing on sec.gov)
Invesco Ltd1,228,413$583m0.11%Added+98,43612 Nov 2024 (the filing on sec.gov)
Neuberger Berman Group LLC766,049$364m0.28%Trimmed-114,34914 Nov 2024 (the filing on sec.gov)
T. Rowe Price Associates Inc502,427$238munder 0.1%Trimmed-88,01314 Nov 2024 (the filing on sec.gov)
Acadian Asset Management LLC319,264$151m0.47%Added+290,97412 Nov 2024 (the filing on sec.gov)
Janus Henderson Group Ltd303,413$144m0.07%Trimmed-4,83314 Nov 2024 (the filing on sec.gov)
Markel Group Inc213,890$102m0.91%Held01 Nov 2024 (the filing on sec.gov)
Two Sigma Investments LP185,401$88m0.19%Added+36,51814 Nov 2024 (the filing on sec.gov)
AllianceBernstein LP172,016$82munder 0.1%Trimmed-1,93214 Nov 2024 (the filing on sec.gov)
Renaissance Technologies LLC140,700$67m0.10%Newnew13 Nov 2024 (the filing on sec.gov)
Artisan Partners LP126,942$60m0.09%Newnew12 Nov 2024 (the filing on sec.gov)
Two Sigma Advisers LP117,900$56m0.13%Trimmed-54,70014 Nov 2024 (the filing on sec.gov)
Man Group PLC116,567$55m0.14%Addedn.a.14 Nov 2024 (the filing on sec.gov)
Arrowstreet Capital LP77,613$37munder 0.1%Newnew14 Nov 2024 (the filing on sec.gov)
Voloridge Investment Management LLC68,928$33m0.12%Added+18,69914 Nov 2024 (the filing on sec.gov)
Marshall Wace LLP52,032$25munder 0.1%Trimmed-21,49614 Nov 2024 (the filing on sec.gov)
ExodusPoint Capital Management LP41,483$20m0.12%Newnew12 Nov 2024 (the filing on sec.gov)
Harris Associates LP25,224$12munder 0.1%Trimmed-280,22914 Nov 2024 (the filing on sec.gov)
Hudson Bay Capital Management LP25,000$12munder 0.1%Newnew13 Nov 2024 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC14,492$6.9munder 0.1%Trimmed-32,04814 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.

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 31 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.
MCO by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201318$3.7bnn.a.n.a.
Q3 201315$4.5bnn.a.n.a.
Q4 201316$4.9bnn.a.n.a.
Q1 201417$5.0bnn.a.n.a.
Q2 201420$5.4bnn.a.n.a.
Q3 201419$5.6bnn.a.n.a.
Q4 201421$4.8bnn.a.n.a.
Q1 201524$5.5bnn.a.n.a.
Q2 201519$6.1bnn.a.n.a.
Q3 201521$5.6bnn.a.n.a.
Q4 201520$5.6bnn.a.n.a.
Q1 201619$4.9bnn.a.n.a.
Q2 201618$4.9bnn.a.n.a.
Q3 201620$5.9bnn.a.n.a.
Q4 201624$5.0bnn.a.n.a.
Q1 201721$6.1bnn.a.n.a.
Q2 201719$6.8bnn.a.n.a.
Q3 201719$7.9bnn.a.n.a.
Q4 201723$8.4bnn.a.n.a.
Q1 201827$9.4bnn.a.n.a.
Q2 201824$9.9bnn.a.n.a.
Q3 201821$9.6bnn.a.n.a.
Q4 201818$8.8bnn.a.n.a.
Q1 201920$11.3bnn.a.n.a.
Q2 201924$12.1bnn.a.n.a.
Q3 201925$12.6bnn.a.n.a.
Q4 201921$14.4bnn.a.n.a.
Q1 202026$12.8bnn.a.n.a.
Q2 202028$16.4bnn.a.n.a.
Q3 202030$17.0bnn.a.n.a.
Q4 202021$16.9bnn.a.n.a.
Q1 202117$16.9bnn.a.n.a.
Q2 202116$20.2bnn.a.n.a.
Q3 202125$19.9bnn.a.n.a.
Q4 202125$22.0bnn.a.n.a.
Q1 202222$19.1bnn.a.n.a.
Q2 202219$15.4bnn.a.n.a.
Q3 202221$13.6bnn.a.n.a.
Q4 202217$15.5bnn.a.n.a.
Q1 202320$17.3bnn.a.n.a.
Q2 202325$19.4bnn.a.n.a.
Q3 202321$17.2bnn.a.n.a.
Q4 202321$22.3bn127
Q1 202422$21.9bn1011
Q2 202424$23.6bn139
Q3 202431$26.8bn1513
Q4 202431$25.7bn1116
Q1 202530$25.2bn1513
Q2 202530$26.8bn1413
Q3 202531$26.0bn1514
Q4 202532$27.7bn1726
Q1 202628$23.9bn2024
Q2 202631$24.9bn2120

Compare with…

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

MCO and V →MCO and AXP →MCO and BAC →Choose a stock to compare with MCO →

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