MERCURY GENL CORP NEW MCY
COM · Common Stock · CUSIP 589400100
Multiple-line American insurance organization
- SectorFinancials
- IndustryFire, Marine & Casualty Insurance
- HeadquartersLos Angeles, CA
- Founded1961
- Websitemercuryinsurance.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($5.7m this quarter). Holder counts are more reliable. Shares outstanding: 55.4m as of 2025-07-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $67.32. Options: 8 managers hold calls ($34.2m notional), 8 hold puts ($5.4m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 204 |
| Q4 2022 | 200 |
| Q1 2023 | 191 |
| Q2 2023 | 179 |
| Q3 2023 | 171 |
| Q4 2023 | 181 |
| Q1 2024 | 229 |
| Q2 2024 | 242 |
| Q3 2024 | 262 |
| Q4 2024 | 284 |
| Q1 2025 | 253 |
| Q2 2025 | 266 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 72 | 93 |
| Q4 2023 | 75 | 88 |
| Q1 2024 | 113 | 90 |
| Q2 2024 | 120 | 106 |
| Q3 2024 | 127 | 106 |
| Q4 2024 | 137 | 114 |
| Q1 2025 | 120 | 167 |
| Q2 2025 | 122 | 128 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $2.5m | $113.4k | 0.05 |
| Q4 2024 | $1.4m | $757.9k | 0.55 |
| Q1 2025 | $45.3m | $17.0m | 0.37 |
| Q2 2025 | $34.2m | $5.4m | 0.16 |
Biggest buyers
| Rubric Capital Management LP | Added | +232.7k |
| GOLDENTREE ASSET MANAGEMENT LP | New | +162.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +105.0k |
| JPMORGAN CHASE & CO | Added | +71.8k |
| WESTWOOD HOLDINGS GROUP INC | Added | +69.0k |
| AMERICAN CENTURY COMPANIES INC | Added | +65.4k |
| LAKEWOOD CAPITAL MANAGEMENT, LP | Added | +60.0k |
| FEDERATED HERMES, INC. | Added | +53.1k |
| SEI INVESTMENTS CO | Added | +43.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +43.1k |
Biggest sellers
| Assenagon Asset Management S.A. | Sold out | -957.7k |
| Diameter Capital Partners LP | Sold out | -350.0k |
| BANK OF AMERICA CORP /DE/ | Reduced | -262.6k |
| HENNESSY ADVISORS INC | Sold out | -172.6k |
| UBS Group AG | Reduced | -166.2k |
| VANGUARD GROUP INC | Reduced | -156.6k |
| GOLDMAN SACHS GROUP INC | Reduced | -150.6k |
| COMPASS ROSE ASSET MANAGEMENT, LP | Sold out | -125.0k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -115.6k |
| BlackRock, Inc. | Reduced | -96.2k |
Biggest calls
| DG Capital Management, LLC | Added | $25.6m380.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $3.7m54.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.8m26.1k shares |
| JANE STREET GROUP, LLC | Reduced | $1.1m16.8k shares |
| CITADEL ADVISORS LLC | Reduced | $1.1m16.2k shares |
| Walleye Trading LLC | Added | $740.7k11.0k shares |
| GROUP ONE TRADING LLC | Reduced | $235.7k3.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.0m29.4k shares |
| Walleye Trading LLC | Added | $1.4m21.1k shares |
| CITADEL ADVISORS LLC | Reduced | $754.2k11.2k shares |
| WOLVERINE TRADING, LLC | Reduced | $640.7k9.7k shares |
| JANE STREET GROUP, LLC | Reduced | $276.1k4.1k shares |
| GROUP ONE TRADING LLC | Reduced | $235.7k3.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $87.0k1.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Joseph Vicky Wai Yee
13D · may seek influence
new · filed 2026-09-30
Stated purposeGeneral The Reporting Person intends to review her investments in the Issuer on a continuing basis. Any actions the Reporting Person might undertake may be made at any time and from time to time without prior notice and will be dependent upon the Reporting Person's review of numerous factors, including, but not limited to: an ongoing evaluation of the Issuer's business, financial condition, operations and prospects; price levels of the Issuer's securities; general market, industry and economic conditions; the relative attractiveness of alternative business and investment opportunities; and other future developments. The Reporting Person may acquire additional securities of the Issuer, or retain or sell all or a portion of the securities then held, in the open market or in privately negot… Full filing |
35.3% |
| BlackRock, Inc. 13G · institution filed 2025-04-17 | 7.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 1 | $7.1k | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 1 | $83.2k | — |
| Q1 2025 | 1 | $3.6k | 0 | — | — |
| Q2 2025 | 2 | $992.1k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-05-23 | Joseph Victor George President & COO, director | Bought | $899.2k15.0k shares |
| 2025-05-16 | Zhang Ximeng Simon Officer | Bought | $92.9k1.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 4.6m $306.9m | Reduced -96.2k |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.3m $221.1m | Reduced -156.6k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 2.1m $139.4m | Reduced -35.5k |
| Rubric Capital Management LP 2.23% of their portfolio | 2.1m $138.4m | Added +232.7k |
| STATE STREET CORP 0.00% of their portfolio | 1.2m $83.7m | Reduced -92.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.10% of their portfolio | 1.2m $78.9m | Reduced -115.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 666.8k $44.9m | Added +12.7k |
| DG Capital Management, LLC 19.34% of their portfolio | 608.6k $41.0m | Added +23.2k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio | 584.6k $39.4m | Added +389 |
| WESTWOOD HOLDINGS GROUP INC 0.27% of their portfolio | 560.7k $37.8m | Added +69.0k |
| Invesco Ltd. 0.01% of their portfolio | 527.9k $35.5m | Reduced -55.7k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 470.9k $31.7m | Added +65.4k |
| MORGAN STANLEY 0.00% of their portfolio | 419.4k $28.2m | Reduced -64.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 389.6k $26.2m | Reduced -18.2k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.10% of their portfolio | 377.1k $25.4m | Added +105.0k |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 346.3k $22.9m | Added +6.3k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 295.9k $19.9m | Reduced -326 |
| NORTHERN TRUST CORP 0.00% of their portfolio | 277.7k $18.7m | Added +4.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.06% of their portfolio | 238.9k $16.1m | Added +22.1k |
| Nuveen, LLC 0.00% of their portfolio | 224.7k $15.1m | Added +808 |
| Baird Financial Group, Inc. 0.02% of their portfolio | 168.1k $11.3m | Reduced -575 |
| GOLDENTREE ASSET MANAGEMENT LP 1.06% of their portfolio | 162.7k $10.9m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 162.6k $11.0m | Added +71.8k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 158.5k $10.7m | Reduced -41.6k |
| LAKEWOOD CAPITAL MANAGEMENT, LP 0.81% of their portfolio | 158.2k $10.7m | Added +60.0k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 157.9k $10.6m | Added +43.4k |
| TWO SIGMA ADVISERS, LP 0.02% of their portfolio | 154.3k $10.4m | Reduced -19.6k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 140.1k $9.4m | Added +5.0k |
| BARCLAYS PLC 0.00% of their portfolio | 137.7k $9.3m | Added +11.7k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 131.8k $8.9m | Reduced -611 |
| Interval Partners, LP 0.20% of their portfolio | 129.9k $8.8m | Reduced -37.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 108.1k $7.3m | Added +43.1k |
| Freestone Grove Partners LP 0.05% of their portfolio | 99.6k $6.7m | Reduced -33.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 94.9k $6.4m | Reduced -150.6k |
| ALGERT GLOBAL LLC 0.13% of their portfolio | 94.5k $6.4m | Added +344 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 92.5k $6.2m | Added +33.1k |
| Public Sector Pension Investment Board 0.03% of their portfolio | 90.5k $6.1m | Added +6.2k |
| Legal & General Group Plc 0.00% of their portfolio | 86.3k $5.8m | Added +3.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 85.6k $5.8m | Added +30.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 77.8k $5.2m | Added +3.7k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 77.2k $5.2m | Reduced -34.1k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.13% of their portfolio | 72.6k $4.9m | Reduced -23.7k |
| UBS Group AG 0.00% of their portfolio | 68.3k $4.6m | Reduced -166.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 65.4k $4.4m | Added +30.8k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 63.9k $4.3m | Added +13.9k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 63.1k $4.2m | Reduced -1.2k |
| ArrowMark Colorado Holdings LLC 0.07% of their portfolio | 60.6k $4.1m | Reduced -17.8k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 57.8k $3.9m | Reduced -9.6k |
| Jefferies Financial Group Inc. 0.06% of their portfolio | 57.4k $3.9m | Added +40.1k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 56.4k $3.8m | Added +35.1k |
| FEDERATED HERMES, INC. 0.01% of their portfolio | 56.2k $3.8m | Added +53.1k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 54.0k $3.6m | Reduced -46.7k |
| Swiss National Bank 0.00% of their portfolio | 52.9k $3.6m | Reduced -800 |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 51.7k $3.5m | Reduced -53.6k |
| Trexquant Investment LP 0.04% of their portfolio | 51.4k $3.5m | Reduced -13.0k |
| IEQ CAPITAL, LLC 0.02% of their portfolio | 50.0k $3.4m | Added +18.9k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.08% of their portfolio | 49.7k $3.3m | Reduced -147 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 46.8k $3.2m | Reduced -7.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 45.8k $3.1m | Added +37.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 45.1k $3.0m | Reduced -262.6k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 43.6k $2.9m | Reduced -88.2k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.11% of their portfolio | 41.9k $2.8m | Added +4.9k |
| Counterpoint Mutual Funds LLC 0.24% of their portfolio | 40.0k $2.7m | New |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 39.0k $2.6m | Unchanged |
| FJ Capital Management LLC 0.27% of their portfolio | 38.1k $2.6m | New |
| Verition Fund Management LLC 0.01% of their portfolio | 37.8k $2.5m | Added +689 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 35.7k $2.4m | Added +2.5k |
| MARTINGALE ASSET MANAGEMENT L P 0.06% of their portfolio | 35.3k $2.4m | Reduced -2.3k |
| GROUP ONE TRADING LLC 0.07% of their portfolio | 32.4k $2.2m | New |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 29.7k $2.0m | Added +43 |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 29.6k $2.0m | New |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.00% of their portfolio | 28.6k $1.9m | Reduced -500 |
| ROYCE & ASSOCIATES LP 0.02% of their portfolio | 28.4k $1.9m | Added +6.9k |
| OMERS ADMINISTRATION Corp 0.01% of their portfolio | 27.7k $1.9m | Reduced -1.5k |
| Horizon Investments, LLC 0.03% of their portfolio | 27.2k $1.8m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 26.2k $1.8m | Added +1.5k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 26.1k $1.8m | Added +19.2k |
| FMR LLC 0.00% of their portfolio | 25.9k $1.7m | Added +21.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 25.5k $1.7m | Reduced -277 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 24.9k $1.7m | Added +172 |
| CITIGROUP INC 0.00% of their portfolio | 24.5k $1.6m | Reduced -19.1k |
| Mariner, LLC 0.00% of their portfolio | 24.0k $1.6m | Added +3.1k |
| Bank & Trust Co 1.27% of their portfolio | 23.8k $1.6m | Reduced -170 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 23.8k $1.6m | Reduced -2.0k |
| WINTON GROUP Ltd 0.08% of their portfolio | 22.0k $1.5m | Reduced -10 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 20.6k $1.4m | Reduced -3.7k |
| Concentric Capital Strategies, LP 0.08% of their portfolio | 20.2k $1.4m | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 19.7k $1.3m | Reduced -6.8k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 19.6k $1.3m | Added +22 |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 19.3k $1.3m | Reduced -38.9k |
| Aquatic Capital Management LLC 0.02% of their portfolio | 17.3k $1.2m | Reduced -8.0k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 16.9k $1.1m | Reduced -2.6k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 16.1k $1.1m | Unchanged |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 15.8k $1.1m | Added +1.1k |
| ISLAY CAPITAL MANAGEMENT, LLC 0.68% of their portfolio | 15.7k $1.1m | New |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 14.9k $1.0m | Reduced -39 |
| WOLVERINE TRADING, LLC 0.02% of their portfolio | 14.8k $979.3k | Added +3.2k |
| Integrated Quantitative Investments LLC 0.29% of their portfolio | 14.8k $997.4k | Unchanged |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 14.8k $993.7k | Reduced -1.2k |
| SPEECE THORSON CAPITAL GROUP INC 0.20% of their portfolio | 14.6k $982.0k | Reduced -571 |