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MKL in the 13F filings

Markel Corp · CUSIP 570535104

Sector · InsuranceTheme · Financial services· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 8 May 2026
Managers listing it
32
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 7 listed it in both
Shares listed
644,700
combined, among listed positions
Reported value
$1.2bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 24 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +78,686.

Managers listing MKL in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

32 of 32 holders

ActionFiling
Baillie Gifford & Co175,068$335m0.34%Trimmed-13,3698 May 2026 (the filing on sec.gov)
Wellington Management Group LLP106,673$204munder 0.1%Trimmed-5,22315 May 2026 (the filing on sec.gov)
Jana Partners75,307$144m8.64%Trimmed-5,91215 May 2026 (the filing on sec.gov)
Marshall Wace LLP53,900$103m0.10%Added+34,90315 May 2026 (the filing on sec.gov)
Jane Street Group LLC34,881$67munder 0.1%Added+16,47112 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC34,621$66m0.10%Added+8,59014 May 2026 (the filing on sec.gov)
Invesco Ltd23,156$44munder 0.1%Added+3,99812 May 2026 (the filing on sec.gov)
Millennium Management LLC15,059$29munder 0.1%Added+2,90915 May 2026 (the filing on sec.gov)
AQR Capital Management LLC13,094$25munder 0.1%Trimmed-2,50915 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc11,755$23munder 0.1%Added+1,15015 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)11,754$22munder 0.1%Trimmed-58015 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP11,475$22munder 0.1%Added+9,20814 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd11,417$22munder 0.1%Trimmed-3,48618 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP9,067$17munder 0.1%Added+215 May 2026 (the filing on sec.gov)
Point72 Asset Management LP8,448$16munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC8,017$15munder 0.1%Added+7,71915 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP7,112$14m0.11%Added+4,41814 May 2026 (the filing on sec.gov)
AllianceBernstein LP5,110$11munder 0.1%Trimmed-28715 May 2026 (the filing on sec.gov)
Man Group PLC5,567$11munder 0.1%Added+2,31115 May 2026 (the filing on sec.gov)
Citadel Advisors LLC4,572$8.8munder 0.1%Added+4,47515 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.3,753$7.2munder 0.1%Added+7015 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC3,683$7.0munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC2,475$4.7munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC2,299$4.4munder 0.1%Added+5713 May 2026 (the filing on sec.gov)
Bridgewater Associates LP2,053$3.9munder 0.1%Added+3715 May 2026 (the filing on sec.gov)
Page 1 of 2

What managers have written about MKL

Shown because the letter names the company. A letter is commentary; it is not a record of why a position changed.

  • Markel Group's 2025 letter to shareholders26 Feb 2026 · Shareholder letter · The writer’s own company · Markel Group Inc’s 13F
    Before the letter
    31 Dec 2025 (Q4 2025 13F): not among Markel Group Inc’s listed positions. A holding below the listed range, under another security, or none at all would read the same.
    After the letter
    31 Mar 2026 (Q1 2026 13F): not among Markel Group Inc’s listed positions. A holding below the listed range, under another security, or none at all would read the same.
  • Markel Group's 2023 letter to business partners6 Mar 2024 · Shareholder letter · The writer’s own company · Markel Group Inc’s 13F
    Before the letter
    31 Dec 2023 (Q4 2023 13F): not among Markel Group Inc’s listed positions. A holding below the listed range, under another security, or none at all would read the same.
    After the letter
    31 Mar 2024 (Q1 2024 13F): not among Markel Group Inc’s listed positions. A holding below the listed range, under another security, or none at all would read the same.

Every letter beside its positions →

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, 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 (6)

Exited (2)

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.
8 in Q3 2024 to 10 in Q2 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MKL by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20136$856mn.a.n.a.
Q3 20135$914mn.a.n.a.
Q4 20137$982mn.a.n.a.
Q1 20144$915mn.a.n.a.
Q2 20143$1.2bnn.a.n.a.
Q3 20143$1.2bnn.a.n.a.
Q4 20146$1.4bnn.a.n.a.
Q1 20155$1.6bnn.a.n.a.
Q2 20155$1.8bnn.a.n.a.
Q3 20158$1.9bnn.a.n.a.
Q4 20158$2.0bnn.a.n.a.
Q1 20167$2.0bnn.a.n.a.
Q2 20166$2.1bnn.a.n.a.
Q3 20165$2.0bnn.a.n.a.
Q4 20167$1.8bnn.a.n.a.
Q1 20176$2.0bnn.a.n.a.
Q2 20176$2.0bnn.a.n.a.
Q3 20175$2.2bnn.a.n.a.
Q4 20175$2.3bnn.a.n.a.
Q1 20186$2.4bnn.a.n.a.
Q2 20186$2.2bnn.a.n.a.
Q3 20186$2.2bnn.a.n.a.
Q4 20188$2.0bnn.a.n.a.
Q1 20198$1.9bnn.a.n.a.
Q2 20196$2.1bnn.a.n.a.
Q3 20196$2.2bnn.a.n.a.
Q4 201910$2.1bnn.a.n.a.
Q1 20209$1.7bnn.a.n.a.
Q2 20208$1.5bnn.a.n.a.
Q3 202011$1.6bnn.a.n.a.
Q4 202014$1.5bnn.a.n.a.
Q1 20219$1.1bnn.a.n.a.
Q2 20219$1.3bnn.a.n.a.
Q3 20217$1.3bnn.a.n.a.
Q4 20218$1.1bnn.a.n.a.
Q1 20228$1.8bnn.a.n.a.
Q2 20226$1.6bnn.a.n.a.
Q3 20226$1.3bnn.a.n.a.
Q4 20226$1.5bnn.a.n.a.
Q1 20233$1.4bnn.a.n.a.
Q2 20234$1.5bnn.a.n.a.
Q3 20237$1.1bnn.a.n.a.
Q4 20234$842m24
Q1 20246$874m33
Q2 20246$883m25
Q3 20248$838m62
Q4 20247$906m44
Q1 20258$1.1bn44
Q2 20257$1.1bn25
Q3 20255$940m14
Q4 20257$929m1613
Q1 20269$873m2410
Q2 202610$954m2015

Compare with…

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

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