L3VLUP
Quarter end
31 Mar 2025
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 2 May 2025
Managers listing it
18
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q4 2024 and Q1 2025; 13 listed it in both
Shares listed
100,125,520
combined, among listed positions
Reported value
$30.2bn
combined, at the quarter end

Among the 95 comparable managers: 10 buyers (opened or added shares) and 7 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 CB in Q1 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

18 of 18 holders

ActionFiling
Berkshire Hathaway Inc27,033,784$8.2bn3.14%Held015 May 2025 (the filing on sec.gov)
Fidelity (FMR LLC)14,966,824$4.5bn0.29%Trimmed-701,5535 Nov 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc14,574,441$4.4bn0.54%Trimmed-1,832,44314 May 2025 (the filing on sec.gov)
Capital World Investors11,924,736$3.6bn0.58%Added+443,43512 May 2025 (the filing on sec.gov)
Capital Research Global Investors9,300,934$2.8bn0.61%Added+406,97112 May 2025 (the filing on sec.gov)
MFS Investment Management7,725,355$2.3bn0.78%Trimmed-148,0222 May 2025 (the filing on sec.gov)
Wellington Management Group LLP7,171,879$2.2bn0.42%Trimmed-1,364,74913 May 2025 (the filing on sec.gov)
Invesco Ltd2,299,799$695m0.13%Trimmed-299,78212 May 2025 (the filing on sec.gov)
Viking Global Investors LP1,949,065$589m1.87%Newnew15 May 2025 (the filing on sec.gov)
AQR Capital Management LLC1,410,449$424m0.44%Added+231,40415 May 2025 (the filing on sec.gov)
AllianceBernstein LP991,521$299m0.11%Added+34,99915 May 2025 (the filing on sec.gov)
Neuberger Berman Group LLC319,383$96m0.08%Trimmed-1,08927 Oct 2026 (the filing on sec.gov)
Bridgewater Associates LP272,434$82m0.38%Newnew14 May 2025 (the filing on sec.gov)
Squarepoint Ops LLC133,742$40munder 0.1%Trimmed-101,42427 Aug 2025 (the filing on sec.gov)
Verition Fund Management LLC31,150$9.4munder 0.1%Addedn.a.15 May 2025 (the filing on sec.gov)
GAMCO Investors Inc17,399$5.3m0.06%Added+3,10014 May 2025 (the filing on sec.gov)
Winton Group Ltd1,903$575kunder 0.1%Newnew15 May 2025 (the filing on sec.gov)
Dodge & Cox722$218kunder 0.1%Newnew14 May 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2024 to Q1 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.

Exited (0)

No exit shown by a manager’s own filing.

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.
20 in Q3 2024 to 26 in Q2 2026

Tracked managers listing it, at least.

01020304020162017201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
CB by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20151$54mn.a.n.a.
Q1 201622$10.6bnn.a.n.a.
Q2 201619$11.7bnn.a.n.a.
Q3 201618$11.3bnn.a.n.a.
Q4 201618$14.9bnn.a.n.a.
Q1 201716$15.3bnn.a.n.a.
Q2 201716$16.3bnn.a.n.a.
Q3 201719$15.9bnn.a.n.a.
Q4 201715$16.7bnn.a.n.a.
Q1 201820$15.8bnn.a.n.a.
Q2 201818$14.1bnn.a.n.a.
Q3 201817$13.7bnn.a.n.a.
Q4 201814$12.9bnn.a.n.a.
Q1 201913$13.6bnn.a.n.a.
Q2 201915$13.4bnn.a.n.a.
Q3 201920$14.5bnn.a.n.a.
Q4 201915$13.6bnn.a.n.a.
Q1 202023$10.0bnn.a.n.a.
Q2 202023$12.1bnn.a.n.a.
Q3 202025$10.9bnn.a.n.a.
Q4 202018$14.6bnn.a.n.a.
Q1 202122$15.1bnn.a.n.a.
Q2 202126$14.9bnn.a.n.a.
Q3 202119$16.5bnn.a.n.a.
Q4 202119$19.2bnn.a.n.a.
Q1 202222$21.6bnn.a.n.a.
Q2 202225$18.7bnn.a.n.a.
Q3 202223$16.7bnn.a.n.a.
Q4 202226$19.8bnn.a.n.a.
Q1 202331$18.6bnn.a.n.a.
Q2 202327$18.2bnn.a.n.a.
Q3 202321$20.7bnn.a.n.a.
Q4 202316$22.8bn710
Q1 202421$26.2bn156
Q2 202416$25.8bn711
Q3 202420$29.7bn118
Q4 202416$28.1bn117
Q1 202518$30.2bn107
Q2 202522$27.8bn138
Q3 202529$27.7bn199
Q4 202523$31.9bn1228
Q1 202622$31.9bn1819
Q2 202626$32.5bn1820

Compare with…

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

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

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