L3VLUP
Quarter end
31 Mar 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 1 May 2024
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q4 2023 and Q1 2024; 17 listed it in both
Shares listed
55,734,847
combined, among listed positions
Reported value
$21.9bn
combined, at the quarter end

Among the 93 comparable managers: 10 buyers (opened or added shares) and 11 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 Q1 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

22 of 22 holders

ActionFiling
Berkshire Hathaway Inc24,669,778$9.7bn2.92%Held015 May 2024 (the filing on sec.gov)
TCI Fund Management Ltd12,198,911$4.8bn12.09%Added+149,30015 May 2024 (the filing on sec.gov)
Fidelity (FMR LLC)5,396,566$2.1bn0.14%Trimmed-23,1345 Nov 2026 (the filing on sec.gov)
Akre Capital Management LLC4,452,967$1.8bn14.48%Trimmed-323,97313 May 2024 (the filing on sec.gov)
Baillie Gifford & Co3,215,872$1.3bn0.98%Trimmed-422,6791 May 2024 (the filing on sec.gov)
MFS Investment Management1,374,763$540m0.16%Added+125,03814 May 2024 (the filing on sec.gov)
Invesco Ltd1,081,399$425m0.09%Added+206,81014 May 2024 (the filing on sec.gov)
Neuberger Berman Group LLC791,340$311m0.26%Trimmed-15,25914 Nov 2024 (the filing on sec.gov)
Harris Associates LP765,980$301m0.49%Trimmed-48,36415 May 2024 (the filing on sec.gov)
T. Rowe Price Associates Inc412,331$162munder 0.1%Trimmed-3,16615 May 2024 (the filing on sec.gov)
Two Sigma Investments LP309,917$122m0.29%Trimmed-5,77115 May 2024 (the filing on sec.gov)
Two Sigma Advisers LP299,300$118m0.27%Added+85,60015 May 2024 (the filing on sec.gov)
Markel Group Inc213,890$84m0.83%Held03 May 2024 (the filing on sec.gov)
Marshall Wace LLP177,804$70m0.11%Addedn.a.15 May 2024 (the filing on sec.gov)
Holocene Advisors LP163,569$64m0.24%Newnew15 May 2024 (the filing on sec.gov)
Balyasny Asset Management LLC108,818$43m0.07%Addedn.a.13 May 2024 (the filing on sec.gov)
Maverick Capital Ltd39,736$16m0.29%Added+38,50315 May 2024 (the filing on sec.gov)
Acadian Asset Management LLC30,867$12munder 0.1%Trimmed-39,72310 May 2024 (the filing on sec.gov)
Bridgewater Associates LP18,256$7.2munder 0.1%Newnew14 May 2024 (the filing on sec.gov)
Moore Capital Management LP6,441$2.5munder 0.1%Newnew15 May 2024 (the filing on sec.gov)
Brevan Howard Capital Management LP4,776$1.9munder 0.1%Trimmed-515 May 2024 (the filing on sec.gov)
Dodge & Cox1,566$615kunder 0.1%Trimmed-13614 May 2024 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2023 to Q1 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 →