L3VLUP
ProSign in

MCY in the 13F filings

Mercury Genl Corp New · CUSIP 589400100

Sector · InsuranceTheme · Financial services· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 2 listed it in both
Shares listed
3,328,403
combined, among listed positions
Reported value
$293m
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: 14 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +417,126.

Managers listing MCY 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.

22 of 22 holders

ActionFiling
Renaissance Technologies LLC823,582$73m0.11%Trimmed-57,80014 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP574,897$51munder 0.1%Added+10014 May 2026 (the filing on sec.gov)
Invesco Ltd572,679$50munder 0.1%Added+260,10512 May 2026 (the filing on sec.gov)
AQR Capital Management LLC351,459$31munder 0.1%Added+10,43115 May 2026 (the filing on sec.gov)
Two Sigma Investments LP289,047$25munder 0.1%Added+74,96115 May 2026 (the filing on sec.gov)
Marshall Wace LLP136,647$12munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Citadel Advisors LLC110,326$9.7munder 0.1%Added+64,12915 May 2026 (the filing on sec.gov)
Jane Street Group LLC107,700$9.5munder 0.1%Added+21,97012 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC85,653$7.5munder 0.1%Added+26,66915 May 2026 (the filing on sec.gov)
Millennium Management LLC48,890$4.3munder 0.1%Trimmed-7,23015 May 2026 (the filing on sec.gov)
AllianceBernstein LP34,895$3.3munder 0.1%Trimmed-80015 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc34,474$3.0munder 0.1%Added+6,91915 May 2026 (the filing on sec.gov)
Point72 Asset Management LP32,590$2.9munder 0.1%Trimmed-12,72815 May 2026 (the filing on sec.gov)
Tudor Investment Corp31,567$2.8munder 0.1%Trimmed-18,05015 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)27,174$2.4munder 0.1%Trimmed-21,41515 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP22,930$2.0munder 0.1%Trimmed-59,20815 May 2026 (the filing on sec.gov)
Man Group PLC15,508$1.4munder 0.1%Added+2,41615 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd12,161$1.1munder 0.1%Held018 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP6,371$562kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Quantbot Technologies LP3,726$328kunder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC3,364$297kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC2,763$244kunder 0.1%Added+11827 Oct 2026 (the filing on sec.gov)

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 (4)

Exited (3)

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.
4 in Q3 2024 to 2 in Q2 2026

Tracked managers listing it, at least.

024682014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MCY by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$48mn.a.n.a.
Q3 20131$106mn.a.n.a.
Q4 20131$72mn.a.n.a.
Q1 20141$65mn.a.n.a.
Q2 20141$71mn.a.n.a.
Q3 20141$73mn.a.n.a.
Q4 20142$85mn.a.n.a.
Q1 20151$87mn.a.n.a.
Q2 20151$83mn.a.n.a.
Q3 20151$76mn.a.n.a.
Q4 20151$70mn.a.n.a.
Q1 20161$83mn.a.n.a.
Q2 20161$80mn.a.n.a.
Q3 20161$88mn.a.n.a.
Q4 20161$96mn.a.n.a.
Q1 20172$98mn.a.n.a.
Q2 20171$86mn.a.n.a.
Q3 20172$91mn.a.n.a.
Q4 20173$87mn.a.n.a.
Q1 20184$79mn.a.n.a.
Q2 20184$128mn.a.n.a.
Q3 20183$153mn.a.n.a.
Q4 20187$162mn.a.n.a.
Q1 20193$129mn.a.n.a.
Q2 20193$124mn.a.n.a.
Q3 20192$115mn.a.n.a.
Q4 20195$146mn.a.n.a.
Q1 20207$142mn.a.n.a.
Q2 20203$102mn.a.n.a.
Q3 20204$96mn.a.n.a.
Q4 20203$108mn.a.n.a.
Q1 20214$107mn.a.n.a.
Q2 20213$129mn.a.n.a.
Q3 20213$109mn.a.n.a.
Q4 20214$105mn.a.n.a.
Q1 20222$78mn.a.n.a.
Q2 20222$65mn.a.n.a.
Q3 20223$40mn.a.n.a.
Q4 20224$48mn.a.n.a.
Q1 20232$42mn.a.n.a.
Q2 20232$41mn.a.n.a.
Q3 20231$35mn.a.n.a.
Q4 20231$47m10
Q1 20243$64m21
Q2 20244$84m13
Q3 20244$106m22
Q4 20244$111m13
Q1 20254$113m40
Q2 20255$137m14
Q3 20253$151m12
Q4 20253$150m917
Q1 20262$123m1410
Q2 20262$145m1113

Compare with…

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

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

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