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 ($4.1m this quarter). Holder counts are more reliable. Shares outstanding: 55.4m as of 2025-05-01, 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 ≈ $55.91. Options: 10 managers hold calls ($45.3m notional), 10 hold puts ($17.0m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 80 | 96 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $1.8m | $265.5k | 0.15 |
| Q3 2024 | $2.5m | $113.4k | 0.05 |
| Q4 2024 | $1.4m | $757.9k | 0.55 |
| Q1 2025 | $45.3m | $17.0m | 0.37 |
Biggest buyers
| Rubric Capital Management LP | New | +1.8m |
| Assenagon Asset Management S.A. | New | +957.7k |
| DG Capital Management, LLC | New | +585.4k |
| WESTWOOD HOLDINGS GROUP INC | New | +491.7k |
| Diameter Capital Partners LP | New | +350.0k |
| BANK OF AMERICA CORP /DE/ | Added | +292.5k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +137.8k |
| Freestone Grove Partners LP | New | +132.8k |
| COMPASS ROSE ASSET MANAGEMENT, LP | New | +125.0k |
| AQR CAPITAL MANAGEMENT LLC | Added | +123.4k |
Biggest sellers
| GOLDMAN SACHS GROUP INC | Reduced | -264.3k |
| VANGUARD GROUP INC | Reduced | -230.6k |
| Point72 Asset Management, L.P. | Sold out | -218.3k |
| Cubist Systematic Strategies, LLC | Sold out | -175.6k |
| Qube Research & Technologies Ltd | Reduced | -161.4k |
| Western Standard LLC | Sold out | -147.6k |
| Invesco Ltd. | Reduced | -142.1k |
| PANAGORA ASSET MANAGEMENT INC | Reduced | -137.3k |
| GLOBEFLEX CAPITAL L P | Sold out | -113.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | -98.0k |
Biggest calls
| DG Capital Management, LLC | New | $19.2m343.1k shares |
| JANE STREET GROUP, LLC | New | $10.9m194.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.6m81.8k shares |
| BARCLAYS PLC | New | $3.4m61.1k shares |
| SIMPLEX TRADING, LLC | Added | $2.3m41.5k shares |
| CITADEL ADVISORS LLC | Added | $1.7m30.0k shares |
| GROUP ONE TRADING LLC | New | $1.6m29.1k shares |
| WOLVERINE TRADING, LLC | Added | $1.2m21.5k shares |
| Walleye Trading LLC | New | $396.9k7.1k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Interval Partners, LP | New | $5.9m106.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.4m79.2k shares |
| CITADEL ADVISORS LLC | Added | $1.8m33.0k shares |
| JANE STREET GROUP, LLC | New | $1.8m31.9k shares |
| WOLVERINE TRADING, LLC | New | $1.1m19.7k shares |
| GROUP ONE TRADING LLC | New | $922.4k16.5k shares |
| SIMPLEX TRADING, LLC | New | $698.0k12.5k shares |
| Walleye Capital LLC | New | $139.8k2.5k shares |
| Walleye Trading LLC | New | $83.8k1.5k 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 Q1 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 |
|---|---|---|---|---|---|
| Q2 2023 | 1 | $7.3k | 0 | — | — |
| 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 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-01-07 | Ribisi Mark Allan President of AIS subsidiary | Bought | $3.6k55 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, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 4.7m $260.1m | Reduced -57.7k |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.4m $192.3m | Reduced -230.6k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 2.1m $117.7m | Added +49.2k |
| Rubric Capital Management LP 1.82% of their portfolio | 1.8m $101.8m | New |
| STATE STREET CORP 0.00% of their portfolio | 1.3m $74.7m | Added +25.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.11% of their portfolio | 1.3m $72.0m | Added +137.8k |
| Assenagon Asset Management S.A. 0.10% of their portfolio | 957.7k $53.5m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 654.1k $36.6m | Added +31.3k |
| DG Capital Management, LLC 17.82% of their portfolio | 585.4k $32.7m | New |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio | 584.2k $32.7m | Added +98.4k |
| Invesco Ltd. 0.01% of their portfolio | 583.6k $32.6m | Reduced -142.1k |
| WESTWOOD HOLDINGS GROUP INC 0.21% of their portfolio | 491.7k $27.5m | New |
| MORGAN STANLEY 0.00% of their portfolio | 483.7k $27.0m | Added +74.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 407.9k $22.8m | Reduced -21.9k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 405.5k $22.7m | Added +100.5k |
| Diameter Capital Partners LP 4.65% of their portfolio | 350.0k $19.6m | New |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 340.0k $19.0m | Added +123.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 307.7k $17.2m | Added +292.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 296.2k $16.6m | Reduced -6.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 273.7k $15.3m | Reduced -5.6k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.06% of their portfolio | 272.2k $15.2m | Reduced -98.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 245.5k $13.7m | Reduced -264.3k |
| UBS Group AG 0.00% of their portfolio | 234.5k $13.1m | Added +75.4k |
| Nuveen, LLC 0.00% of their portfolio | 223.9k $12.5m | First filing |
| Connor, Clark & Lunn Investment Management Ltd. 0.05% of their portfolio | 216.7k $12.1m | Added +99.4k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 200.1k $11.2m | Added +83.3k |
| TWO SIGMA ADVISERS, LP 0.02% of their portfolio | 173.9k $9.7m | Added +78.9k |
| HENNESSY ADVISORS INC 0.32% of their portfolio | 172.6k $9.6m | Reduced -19.7k |
| Baird Financial Group, Inc. 0.02% of their portfolio | 168.6k $9.4m | Added +18.9k |
| Interval Partners, LP 0.33% of their portfolio | 167.6k $9.4m | Added +76.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 135.2k $7.6m | Reduced -11.3k |
| Freestone Grove Partners LP 0.08% of their portfolio | 132.8k $7.4m | New |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 132.5k $7.4m | Added +3.5k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 131.8k $7.4m | Reduced -161.4k |
| BARCLAYS PLC 0.00% of their portfolio | 126.0k $7.0m | Added +75.6k |
| COMPASS ROSE ASSET MANAGEMENT, LP 2.47% of their portfolio | 125.0k $7.0m | New |
| SEI INVESTMENTS CO 0.01% of their portfolio | 114.5k $6.4m | Added +108.5k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 111.3k $6.2m | Added +8.7k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 105.3k $5.9m | Added +98.1k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 100.7k $5.6m | Reduced -3.9k |
| LAKEWOOD CAPITAL MANAGEMENT, LP 0.49% of their portfolio | 98.2k $5.5m | Reduced -78.5k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.09% of their portfolio | 96.3k $5.4m | New |
| ALGERT GLOBAL LLC 0.13% of their portfolio | 94.2k $5.3m | Added +68.8k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 92.3k $5.2m | Added +39.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 90.8k $5.1m | Reduced -42.5k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 84.3k $4.7m | Added +18.1k |
| Legal & General Group Plc 0.00% of their portfolio | 82.9k $4.6m | Added +295 |
| Lighthouse Investment Partners, LLC 0.21% of their portfolio | 82.5k $4.6m | Reduced -48.2k |
| ArrowMark Colorado Holdings LLC 0.07% of their portfolio | 78.4k $4.4m | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 74.1k $4.1m | Reduced -3.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 70.2k $3.9m | Added +44.1k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 67.4k $3.8m | Reduced -30.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 65.1k $3.6m | Added +48.9k |
| Trexquant Investment LP 0.04% of their portfolio | 64.3k $3.6m | Reduced -20.8k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 64.2k $3.6m | Reduced -11.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 59.4k $3.3m | Reduced -128 |
| INTECH INVESTMENT MANAGEMENT LLC 0.03% of their portfolio | 58.2k $3.3m | Added +30.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 54.9k $3.1m | First filing |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 54.3k $3.0m | Added +20.1k |
| Swiss National Bank 0.00% of their portfolio | 53.7k $3.0m | Reduced -800 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 50.0k $2.8m | Reduced -29.7k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.07% of their portfolio | 49.8k $2.8m | Added +161 |
| Quinn Opportunity Partners LLC 0.19% of their portfolio | 47.5k $2.7m | New |
| CITIGROUP INC 0.00% of their portfolio | 43.6k $2.4m | Reduced -8.6k |
| Graham Capital Management, L.P. 0.07% of their portfolio | 42.0k $2.3m | Added +37.3k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 39.0k $2.2m | Reduced -2.7k |
| MARTINGALE ASSET MANAGEMENT L P 0.05% of their portfolio | 37.6k $2.1m | Reduced -13.9k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 37.2k $2.1m | Added +35.8k |
| Verition Fund Management LLC 0.01% of their portfolio | 37.1k $2.1m | Added +9.9k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.09% of their portfolio | 37.0k $2.1m | Added +33.1k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 34.5k $1.9m | Reduced -5.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 33.2k $1.9m | Reduced -1.6k |
| IEQ CAPITAL, LLC 0.01% of their portfolio | 31.1k $1.7m | Added +13.7k |
| Brandywine Global Investment Management, LLC 0.01% of their portfolio | 30.2k $1.7m | New |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 29.7k $1.7m | Reduced -137.3k |
| OMERS ADMINISTRATION Corp 0.01% of their portfolio | 29.2k $1.6m | New |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.00% of their portfolio | 29.1k $1.6m | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 26.4k $1.5m | Reduced -369 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 25.8k $1.4m | Unchanged |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 25.7k $1.4m | Reduced -1.5k |
| Aquatic Capital Management LLC 0.04% of their portfolio | 25.3k $1.4m | New |
| CASTLEKEEP INVESTMENT ADVISORS LLC 0.72% of their portfolio | 25.0k $1.4m | Reduced -286 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 24.7k $1.4m | Reduced -11.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 24.7k $1.4m | Added +343 |
| HRT FINANCIAL LP 0.01% of their portfolio | 24.5k $1.4m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 24.3k $1.4m | Reduced -2.6k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 24.1k $1.4m | Added +11.9k |
| Bank & Trust Co 1.09% of their portfolio | 24.0k $1.3m | Reduced -1.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 23.9k $1.3m | Reduced -760 |
| SummitTX Capital, L.P. 0.06% of their portfolio | 23.4k $1.3m | First filing |
| WINTON GROUP Ltd 0.07% of their portfolio | 22.0k $1.2m | Added +3.7k |
| ROYCE & ASSOCIATES LP 0.01% of their portfolio | 21.5k $1.2m | Added +11.9k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 21.3k $1.2m | Reduced -17.7k |
| Mariner, LLC 0.00% of their portfolio | 20.8k $1.2m | Reduced -209 |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 20.2k $1.1m | Unchanged |
| FOX RUN MANAGEMENT, L.L.C. 0.17% of their portfolio | 19.9k $1.1m | New |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 19.6k $1.1m | Reduced -68.9k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 19.5k $1.1m | Reduced -1.0k |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 19.4k $1.1m | Added +13.1k |
| GSA CAPITAL PARTNERS LLP 0.10% of their portfolio | 19.3k $1.1m | New |