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Equibles

MCY

Mercury General Corp

Company with tickers: MCY

CIK
64996
CUSIP
589400100
Shares Outstanding
55,388,627
13F Activity (30d)
212 filings 207 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 307
Total Value: $2,341,182,870
Total Shares: 26,559,082
Showing 1–100 of 314 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 307 13F filers · Δ vs Dec 31, 2025
Top Holder
16.3%
Jun 2023 → Mar 2026 · range 16.1% – 24.5%
−1.5 pts
Top 5
43.5%
Jun 2023 → Mar 2026 · range 43.5% – 57.6%
−6.0 pts
Top 10
60.3%
Jun 2023 → Mar 2026 · range 60.3% – 72.2%
−4.1 pts
HHI
548
Jun 2023 → Mar 2026 · range 548 – 977
Broadly held −119

Quarterly Activity

vs Dec 31, 2025
New
47
Increased
123
Decreased
78
Sold Out
55
Unchanged
59
Holder count: -8
Institutional value: -5.3%
Shares held: +1.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega Invesco Ltd. +260,105 572,679
Mega UBS Group AG +177,906 307,171
Mega GEODE CAPITAL MANAGEMENT, LLC +120,649 754,127
Mega AMERICAN CENTURY COMPANIES INC +113,829 813,320
Mid ALGERT GLOBAL LLC +100,055 170,213

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega BlackRock, Inc. −339,562 4,317,164
Large WESTWOOD HOLDINGS GROUP INC −214,212 251,025
Small DG Capital Management, LLC −155,992 948,677
Mid Park West Asset Management LLC −136,429 193,006
Large Qube Research & Technologies Ltd −65,157 119,067

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 1,717,862 $151,429,535
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,226,459 $108,112,360
Mega VANGUARD FIDUCIARY TRUST CO 172,423 $15,199,087
Large MARSHALL WACE, LLP 136,647 $12,045,432
Large Allianz Asset Management GmbH 113,592 $10,013,131

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 3,095,241 $291,138,366
Mid LAKEWOOD CAPITAL MANAGEMENT, LP 158,218 $14,881,985
Large TWO SIGMA ADVISERS, LP 140,200 $13,187,212
Small Informed Momentum Co LLC 46,268 $4,351,968
Mid GROUP ONE TRADING LLC 36,156 $3,400,833
Filter: New 47 Increased 123 Reduced 78 Sold out 55 Unchanged 59
Showing 100 of 314
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $380,557,998 16.25% 4,317,164
Mid Rubric Capital Management LP $189,919,527 8.11% 2,154,504
Mega DIMENSIONAL FUND ADVISORS LP $189,491,380 8.09% 2,149,647
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $151,429,535 6.47% 1,717,862
Mega VANGUARD CAPITAL MANAGEMENT LLC $108,112,360 4.62% 1,226,459
Mega STATE STREET CORP $96,884,871 4.14% 1,099,091
Large RENAISSANCE TECHNOLOGIES LLC $72,598,753 3.10% 823,582
Mega AMERICAN CENTURY COMPANIES INC $71,694,158 3.06% 813,320
Mega GEODE CAPITAL MANAGEMENT, LLC $66,476,294 2.84% 754,127
Small DG Capital Management, LLC $52,394,332 2.24% 594,377
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $50,677,170 2.16% 574,897
Mega Invesco Ltd. $50,481,651 2.16% 572,679
Mega MORGAN STANLEY $33,335,858 1.42% 378,172
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $31,494,143 1.35% 357,279
Small DG Capital Management, LLC $31,231,545 1.33% 354,300
Large JACOBS LEVY EQUITY MANAGEMENT, INC $31,103,639 1.33% 352,849
Mega AQR CAPITAL MANAGEMENT LLC $30,981,106 1.32% 351,459
Mega UBS Group AG $27,077,122 1.16% 307,171
Mega TWO SIGMA INVESTMENTS, LP $25,479,493 1.09% 289,047
Mega NORTHERN TRUST CORP Bank $23,777,402 1.02% 269,738
Small Philosophy Capital Management LLC $22,680,642 0.97% 257,296
Mega Nuveen, LLC $22,521,882 0.96% 255,495
Large WESTWOOD HOLDINGS GROUP INC $22,127,853 0.95% 251,025
Mega Bank of New York Mellon Corp Bank $21,464,522 0.92% 243,500
Mega BNP PARIBAS ARBITRAGE, SA $19,191,400 0.82% 217,713
Mega GOLDMAN SACHS GROUP INC $17,024,321 0.73% 193,129
Mid Park West Asset Management LLC $17,013,478 0.73% 193,006
Mega JPMORGAN CHASE & CO $16,671,631 0.71% 189,128
Mega PRINCIPAL FINANCIAL GROUP INC $15,696,341 0.67% 178,064
Mega VANGUARD FIDUCIARY TRUST CO Bank $15,199,087 0.65% 172,423
Mid ALGERT GLOBAL LLC $15,004,275 0.64% 170,213
Large Baird Financial Group, Inc. $12,838,166 0.55% 145,640
Large SEI INVESTMENTS CO $12,486,182 0.53% 141,647
Large MARSHALL WACE, LLP $12,045,432 0.51% 136,647
Large Connor, Clark & Lunn Investment Management Ltd. $11,785,919 0.50% 133,703
Large Qube Research & Technologies Ltd $10,495,756 0.45% 119,067
Large Allianz Asset Management GmbH $10,013,131 0.43% 113,592
Mega CITADEL ADVISORS LLC $9,725,236 0.42% 110,326
Mega RAYMOND JAMES FINANCIAL INC $9,712,807 0.41% 110,185
Mega JANE STREET GROUP, LLC $9,493,754 0.41% 107,700
Large Russell Investments Group, Ltd. $9,225,597 0.39% 104,658
Large Public Sector Pension Investment Board Pension $8,386,062 0.36% 95,134
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $7,550,311 0.32% 85,653
Mega VICTORY CAPITAL MANAGEMENT INC $7,519,812 0.32% 85,307
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $7,359,288 0.31% 83,486
Mega AMERIPRISE FINANCIAL INC $7,262,237 0.31% 82,385
Large FEDERATED HERMES, INC. $7,227,241 0.31% 81,988
Large Assenagon Asset Management S.A. $7,058,787 0.30% 80,077
Mid Aptus Capital Advisors, LLC $7,026,877 0.30% 79,715
Mega BANK OF AMERICA CORP /DE/ Bank $6,605,784 0.28% 74,938
Large PEAK6 LLC $6,553,599 0.28% 74,346
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $6,524,686 0.28% 74,018
Mega Legal & General Group Plc $6,451,168 0.28% 73,184
Mega RHUMBLINE ADVISERS $6,300,697 0.27% 71,477
Large Candriam S.C.A. $5,886,128 0.25% 66,774
Mega FIRST TRUST ADVISORS LP $5,481,255 0.23% 62,181
Large IEQ CAPITAL, LLC $5,332,810 0.23% 60,497
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,306,630 0.23% 60,200
Large PRUDENTIAL FINANCIAL INC $5,285,650 0.23% 59,962
Large LSV ASSET MANAGEMENT $4,909,955 0.21% 55,700
Mega Swiss National Bank Bank $4,821,805 0.21% 54,700
Large Trexquant Investment LP $4,650,617 0.20% 52,758
Large Jefferies Financial Group Inc. $4,583,800 0.20% 52,000
Mega MILLENNIUM MANAGEMENT LLC $4,309,653 0.18% 48,890
Mid Engineers Gate Manager LP $4,063,362 0.17% 46,096
Mid MARTINGALE ASSET MANAGEMENT L P $3,810,900 0.16% 43,232
Mega CITIGROUP INC $3,572,542 0.15% 40,528
Mid RITHOLTZ WEALTH MANAGEMENT $3,568,576 0.15% 40,483
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension $3,500,260 0.15% 39,708
Mid Horizon Investments, LLC $3,389,720 0.14% 38,454
Small DENALI ADVISORS LLC $3,368,564 0.14% 38,214
Mega ALLIANCEBERNSTEIN L.P. $3,075,994 0.13% 34,895
Mega PRICE T ROWE ASSOCIATES INC /MD/ $3,038,883 0.13% 34,474
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $2,984,141 0.13% 33,853
Large Point72 Asset Management, L.P. $2,872,808 0.12% 32,590
Small GLOBEFLEX CAPITAL L P $2,832,523 0.12% 32,133
Large TUDOR INVESTMENT CORP ET AL $2,782,631 0.12% 31,567
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $2,441,755 0.10% 27,700
Mega FMR LLC $2,395,386 0.10% 27,174
Small Proficio Capital Partners LLC $2,378,815 0.10% 26,986
Mega DEUTSCHE BANK AG\ Bank $2,359,951 0.10% 26,772
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $2,343,908 0.10% 26,590
Mega HSBC HOLDINGS PLC $2,341,352 0.10% 26,561
Mid Voleon Capital Management LP $2,336,503 0.10% 26,506
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $2,291,900 0.10% 26,000
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Pension $2,282,908 0.10% 25,898
Large CANADA LIFE ASSURANCE Co Insurance $2,282,115 0.10% 25,889
Large Mariner, LLC $2,233,985 0.10% 25,343
Mega VANGUARD ASSET MANAGEMENT, Ltd $2,128,205 0.09% 24,143
Mid Inspire Investing, LLC $2,122,123 0.09% 24,074
Mega ROYAL BANK OF CANADA Bank $2,116,480 0.09% 24,010
Large STATE OF WISCONSIN INVESTMENT BOARD $2,113,660 0.09% 23,978
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $2,021,279 0.09% 22,930
Mid ROYCE & ASSOCIATES LP $1,963,982 0.08% 22,280
Small Bank & Trust Co Bank $1,916,381 0.08% 21,740
Large Cerity Partners LLC $1,862,609 0.08% 21,130
Small HUSSMAN STRATEGIC ADVISORS, INC. $1,851,150 0.08% 21,000
Large Tidal Investments LLC $1,823,206 0.08% 20,683
Mid State of Alaska, Department of Revenue $1,739,639 0.07% 19,735
Large Thrivent Financial for Lutherans $1,720,864 0.07% 19,522

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