| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BAMCO INC /NY/ | 5.5% | $1,914,815,733 | 20,725,357 | Baron Capital Group, Inc. | 30 Sep 2024 |
As of 30 Sep 2025, 831 institutional investors reported holding 325,999,331 shares of ARCH CAPITAL GROUP LTD. - Common Shares (ACGL). This represents 87% of the company’s total 376,140,780 outstanding shares.
The largest institutional shareholders of ARCH CAPITAL GROUP LTD. - Common Shares (ACGL) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 11% | 42,313,220 | -0.24% | 0.06% | $3,839,078,451 |
| BlackRock, Inc. | 8.6% | 32,462,832 | -1.4% | 0.05% | $2,945,352,825 |
| Artisan Partners Limited Partnership | 6.3% | 23,638,106 | -0.82% | 3.1% | $2,144,685,357 |
| BAMCO INC /NY/ | 5% | 18,759,655 | -4.9% | 4.5% | $1,702,063,498 |
| STATE STREET CORP | 4.5% | 16,768,197 | -1% | 0.05% | $1,521,378,514 |
| WCM INVESTMENT MANAGEMENT, LLC | 3.6% | 13,525,402 | +1.3% | 2.5% | $1,214,986,904 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8% | 10,693,691 | +1.8% | 0.06% | $966,626,819 |
| JPMORGAN CHASE & CO | 2.2% | 8,190,927 | +4.6% | 0.05% | $743,167,541 |
| PRINCIPAL FINANCIAL GROUP INC | 1.4% | 5,148,391 | -12% | 0.24% | $467,116,985 |
| NORTHERN TRUST CORP | 1.3% | 4,874,135 | -0.02% | 0.06% | $442,230,270 |
| Madison Asset Management, LLC | 1.3% | 4,707,947 | -2.4% | 4.7% | $427,152,050 |
| MORGAN STANLEY | 1.1% | 4,255,950 | -1.3% | 0.02% | $386,142,606 |
| DIMENSIONAL FUND ADVISORS LP | 1.1% | 4,134,929 | -0.54% | 0.08% | $375,128,740 |
| Invesco Ltd. | 1.1% | 4,065,356 | -0.54% | 0.06% | $368,849,749 |
| ROYAL BANK OF CANADA | 1% | 3,779,451 | +2.2% | 0.06% | $342,910,000 |
| Allspring Global Investments Holdings, LLC | 1% | 3,771,627 | -17% | 0.55% | $340,615,635 |
| Egerton Capital (UK) LLP | 0.93% | 3,507,882 | -17% | 3.4% | $318,270,134 |
| Polar Capital Holdings Plc | 0.9% | 3,380,500 | -0.28% | 1.5% | $306,712,765 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 0.89% | 3,330,602 | -22% | 0.07% | $302,185,519 |
| FIRST TRUST ADVISORS LP | 0.75% | 2,835,648 | +410% | 0.19% | $257,278,321 |
| Legal & General Group Plc | 0.75% | 2,823,079 | -0.1% | 0.06% | $256,137,961 |
| GOLDMAN SACHS GROUP INC | 0.74% | 2,789,652 | +13% | 0.04% | $253,105,114 |
| UBS Group AG | 0.73% | 2,738,518 | +56% | 0.05% | $248,465,738 |
| MARSHFIELD ASSOCIATES | 0.72% | 2,724,635 | +5.5% | 4.3% | $247,206,126 |
| Nuveen, LLC | 0.68% | 2,562,278 | -36% | 0.06% | $232,475,483 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 6,520,955 | $617,609,208 | -$3,784,563 | $95.92 | 142 |
| 2025 Q3 | 325,999,331 | $29,555,466,370 | -$910,170,474 | $90.73 | 831 |
| 2025 Q2 | 335,824,160 | $30,555,092,183 | +$548,911,268 | $91.05 | 844 |
| 2025 Q1 | 330,247,215 | $31,739,635,524 | -$489,305,430 | $96.18 | 837 |
| 2024 Q4 | 341,012,446 | $31,477,140,767 | +$231,945,532 | $92.35 | 835 |
| 2024 Q3 | 331,581,988 | $37,108,309,963 | -$27,710,187 | $111.88 | 843 |
| 2024 Q2 | 330,971,576 | $33,382,800,419 | +$280,135,197 | $100.89 | 798 |
| 2024 Q1 | 328,387,561 | $30,350,823,955 | +$155,945,750 | $92.44 | 793 |
| 2023 Q4 | 327,256,233 | $24,306,386,241 | -$586,938,100 | $74.27 | 758 |
| 2023 Q3 | 334,489,978 | $26,669,814,032 | +$424,276,352 | $79.71 | 684 |
| 2023 Q2 | 329,370,562 | $24,648,714,317 | -$348,009,723 | $74.85 | 664 |
| 2023 Q1 | 333,803,579 | $22,651,753,848 | +$13,201,116 | $67.87 | 614 |
| 2022 Q4 | 334,538,159 | $21,001,642,913 | +$723,261,084 | $62.78 | 566 |
| 2022 Q3 | 325,308,883 | $14,816,051,284 | -$46,563,003 | $45.54 | 475 |
| 2022 Q2 | 326,157,333 | $14,835,031,110 | -$121,739,973 | $45.49 | 489 |
| 2022 Q1 | 329,675,170 | $15,958,942,579 | -$261,389,133 | $48.42 | 495 |
| 2021 Q4 | 334,750,822 | $14,874,958,282 | -$1,018,883,210 | $44.45 | 452 |
| 2021 Q3 | 347,004,560 | $13,252,763,969 | -$330,718,335 | $38.18 | 415 |
| 2021 Q2 | 355,753,213 | $13,850,032,301 | -$102,169,431 | $38.94 | 394 |
| 2021 Q1 | 358,773,961 | $13,765,624,334 | +$1,195,853,574 | $38.37 | 414 |
| 2020 Q4 | 329,064,784 | $11,866,343,852 | +$193,908,689 | $36.07 | 386 |
| 2020 Q3 | 324,285,958 | $9,476,074,217 | +$87,927,655 | $29.25 | 366 |
| 2020 Q2 | 321,718,920 | $9,210,514,543 | +$92,351,907 | $28.65 | 367 |
| 2020 Q1 | 318,244,625 | $9,057,394,534 | -$159,873,909 | $28.46 | 390 |
| 2019 Q4 | 323,229,435 | $13,854,099,023 | -$70,231,904 | $42.89 | 405 |
| 2019 Q3 | 325,012,921 | $13,637,947,421 | -$37,944,384 | $41.98 | 386 |
| 2019 Q2 | 326,053,124 | $12,086,658,494 | +$52,351,857 | $37.08 | 364 |
| 2019 Q1 | 326,941,849 | $10,564,910,253 | +$22,038,634 | $32.32 | 335 |
| 2018 Q4 | 325,063,046 | $8,684,484,332 | -$129,181,246 | $26.72 | 305 |
| 2018 Q3 | 329,946,993 | $9,833,046,116 | -$2,586,961 | $29.81 | 319 |
| 2018 Q2 | 330,262,180 | $8,737,914,659 | +$5,681,580,501 | $26.46 | 306 |
| 2018 Q1 | 111,590,931 | $9,548,598,373 | +$424,894,163 | $85.59 | 335 |
| 2017 Q4 | 107,605,150 | $9,763,835,969 | +$118,010,797 | $90.77 | 308 |
| 2017 Q3 | 105,149,545 | $10,358,050,790 | +$328,673,224 | $98.50 | 287 |
| 2017 Q2 | 101,970,196 | $9,513,216,543 | +$622,042,110 | $93.29 | 316 |
| 2017 Q1 | 95,859,227 | $9,084,582,132 | +$869,008,094 | $94.77 | 297 |
| 2016 Q4 | 95,256,598 | $8,214,559,665 | +$129,800,389 | $86.29 | 318 |
| 2016 Q3 | 94,644,230 | $7,496,946,466 | -$93,204,799 | $79.26 | 286 |
| 2016 Q2 | 95,853,767 | $6,900,759,648 | +$53,431,994 | $72.00 | 295 |
| 2016 Q1 | 95,141,724 | $6,763,078,665 | -$3,372,952 | $71.10 | 278 |
| 2015 Q4 | 95,144,146 | $6,637,121,042 | -$34,584,529 | $69.75 | 293 |
| 2015 Q3 | 95,306,146 | $7,002,230,725 | -$26,740,818 | $73.47 | 259 |
| 2015 Q2 | 95,919,943 | $6,422,653,043 | +$77,369,876 | $66.96 | 251 |
| 2015 Q1 | 94,908,342 | $5,845,641,488 | -$62,138,281 | $61.60 | 261 |
| 2014 Q4 | 95,987,812 | $5,673,525,952 | -$109,250,327 | $59.10 | 259 |
| 2014 Q3 | 98,676,903 | $5,399,462,982 | -$89,638,123 | $54.72 | 244 |
| 2014 Q2 | 100,328,786 | $5,762,765,281 | +$125,842,788 | $57.44 | 245 |
| 2014 Q1 | 98,453,869 | $5,664,192,814 | -$31,190,893 | $57.54 | 247 |