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Arch Capital Group Ltd.

ACGL
Exchange
Nasdaq
Industry
Fire, Marine & Casualty Insurance
SEC CIK
0000947484

In the last 90 days, Arch Capital Group Ltd. insiders filed 0 open-market purchases and 1 sale; 912 institutions reported holding it in 13F filings for Q2 2026, worth $30.3B in total; no superinvestor holds it.

Other share classesACGLNACGLO

13F holders, Q3 2025

Institutional positions in Arch Capital Group Ltd. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
846
0 vs. Q2 2025
Shares held
326.4M
−4.82M (−1.5%) vs. Q2 2025
Total value
$29.6B
−$535.0M (−1.8%) vs. Q2 2025
New holders
87
320 more added
Sold out
87
329 more reduced

9 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ACGL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 846 institutions
Q1 2021: 422 institutionsQ2 2021: 404 institutionsQ3 2021: 424 institutionsQ4 2021: 461 institutionsQ1 2022: 508 institutionsQ2 2022: 503 institutionsQ3 2022: 487 institutionsQ4 2022: 579 institutionsQ1 2023: 624 institutionsQ2 2023: 670 institutionsQ3 2023: 688 institutionsQ4 2023: 766 institutionsQ1 2024: 802 institutionsQ2 2024: 806 institutionsQ3 2024: 852 institutionsQ4 2024: 845 institutionsQ1 2025: 852 institutionsQ2 2025: 855 institutionsQ3 2025: 846 institutionsQ4 2025: 923 institutionsQ1 2026: 918 institutionsQ2 2026: 912 institutions
Value heldQ3 2025: $29.6B
Q1 2021: $13.8BQ2 2021: $13.9BQ3 2021: $13.3BQ4 2021: $14.9BQ1 2022: $16.0BQ2 2022: $14.8BQ3 2022: $14.8BQ4 2022: $21.0BQ1 2023: $22.7BQ2 2023: $24.7BQ3 2023: $26.7BQ4 2023: $24.4BQ1 2024: $30.4BQ2 2024: $33.4BQ3 2024: $37.2BQ4 2024: $31.5BQ1 2025: $32.1BQ2 2025: $30.6BQ3 2025: $29.6BQ4 2025: $31.2BQ1 2026: $30.5BQ2 2026: $30.3B
Institutions holding ACGL and their total value by quarter
QuarterHoldersValue
Q2 2026912$30.3B
Q1 2026918$30.5B
Q4 2025923$31.2B
Q3 2025846$29.6B
Q2 2025855$30.6B
Q1 2025852$32.1B
Q4 2024845$31.5B
Q3 2024852$37.2B
Q2 2024806$33.4B
Q1 2024802$30.4B
Q4 2023766$24.4B
Q3 2023688$26.7B
Q2 2023670$24.7B
Q1 2023624$22.7B
Q4 2022579$21.0B
Q3 2022487$14.8B
Q2 2022503$14.8B
Q1 2022508$16.0B
Q4 2021461$14.9B
Q3 2021424$13.3B
Q2 2021404$13.9B
Q1 2021422$13.8B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Arch Capital Group Ltd.; share changes are against Q2 2025.

Institutions holding ACGL in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Illinois Municipal Retirement Fund154,962$14.1M0.18%+10,117+7.0%Added
Bank of Nova Scotia160,356$14.5M0.03%+80,128+99.9%Added
DekaBank Deutsche Girozentrale168,835$15.1M0.03%00.0%Unchanged
Asset Management One Co.,Ltd.169,079$15.3M0.04%+571+0.3%Added
Zurcher Kantonalbank (Zurich Cantonalbank)169,704$15.4M0.04%+2,151+1.3%Added
Swiss Life Asset Management Ltd172,013$15.6M0.08%+86,544+101.3%Added
KLP Kapitalforvaltning AS172,641$15.7M0.06%+300+0.2%Added
Grantham, Mayo, Van Otterloo & Co. LLC175,617$15.9M0.04%−29,791−14.5%Reduced
Quantinno Capital Management LP175,748$15.9M0.04%+55,273+45.9%Added
Natixis176,871$16.0M0.09%+163,487+1,221.5%Added
Brandywine Global Investment Management, LLC181,602$16.5M0.11%+692+0.4%Added
Royal London Asset Management Ltd181,834$16.5M0.04%−13,879−7.1%Reduced
Prudential PLC185,466$16.8M0.12%+37,120+25.0%Added
Arrowstreet Capital, Limited Partnership188,552$17.1M0.01%+188,552New
Skandinaviska Enskilda Banken AB (publ)191,588$17.4M0.07%−7,314−3.7%Reduced
Chevy Chase Trust Holdings, Inc.191,893$17.4M0.05%−7,442−3.7%Reduced
Allianz Asset Management GmbH192,567$17.5M0.02%+21,323+12.5%Added
Capital Fund Management S.A.193,136$17.5M0.17%+14,672+8.2%Added
Truist Financial Corp193,825$17.6M0.02%−27,748−12.5%Reduced
Robertson Opportunity Capital, LLC202,106$18.3M6.30%00.0%Unchanged
Universal- Beteiligungs- und Servicegesellschaft mbH218,909$19.9M0.03%−19,118−8.0%Reduced
Victory Capital Management Inc219,412$19.9M0.01%−2,358−1.1%Reduced
State of Wisconsin Investment Board219,680$19.9M0.05%−5,615−2.5%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund223,550$20.3M0.17%+223,550New
Pictet Asset Management Holding SA224,317$20.4M0.02%+179+0.1%Added
Braun Stacey Associates Inc227,041$20.6M0.67%−7,289−3.1%Reduced
South Dakota Investment Council230,571$20.9M0.41%+26,104+12.8%Added
CWM, LLC257,598$23.4M0.07%+3,499+1.4%Added
Storebrand Asset Management AS273,253$24.8M0.07%−4,728−1.7%Reduced
STRS Ohio278,725$25.3M0.09%−80,236−22.4%Reduced
TD Asset Management Inc284,124$25.8M0.02%−49,017−14.7%Reduced
Aware Super Pty Ltd as trustee of Aware Super285,061$25.9M0.36%00.0%Unchanged
J. Safra Sarasin Holding AG285,340$25.9M0.42%+142,929+100.4%Added
Toronto Dominion Bank285,885$25.9M0.05%+16,423+6.1%Added
Philo Smith Capital Corp287,570$26.1M7.25%00.0%Unchanged
Danske Bank A/S287,948$26.1M0.06%+62,300+27.6%Added
Mitsubishi UFJ Trust & Banking Corp291,388$26.4M0.06%−21,504−6.9%Reduced
APG Asset Management N.V.344,600$26.6M0.07%−4,100−1.2%Reduced
Voloridge Investment Management, LLC300,112$27.2M0.09%+145,368+93.9%Added
Aviva PLC300,577$27.3M0.05%+14,429+5.0%Added
Standard Life Aberdeen plc306,078$27.8M0.04%+9,611+3.2%Added
Bridgewater Associates, LP317,694$28.8M0.11%+123,369+63.5%Added
Korea Investment CORP328,365$29.8M0.06%+3,697+1.1%Added
Russell Investments Group, Ltd.332,117$30.1M0.03%−131,521−28.4%Reduced
New York State Teachers Retirement System335,456$30.4M0.06%−14,490−4.1%Reduced
State Board of Administration of Florida Retirement System338,034$30.7M0.05%−36,503−9.7%Reduced
Jump Financial, LLC340,708$30.9M0.39%+333,381+4,550.0%Added
Smith Group Asset Management, LLC359,019$32.6M1.87%+16,566+4.8%Added
Treasurer of the State of North Carolina359,741$32.6M0.10%−70,183−16.3%Reduced
National Bank of Canada361,863$32.8M0.04%+94,599+35.4%Added
Commerce Bank368,368$33.4M0.19%+2,121+0.6%Added
HSBC Holdings PLC371,866$33.5M0.02%−172,603−31.7%Reduced
Confluence Investment Management LLC389,020$35.3M0.50%−7,378−1.9%Reduced
Citigroup Inc389,935$35.4M0.02%−216,617−35.7%Reduced
Clearbridge Investments, LLC407,317$37.0M0.03%−591−0.1%Reduced
Great Lakes Advisors, LLC418,320$38.0M0.32%+208,235+99.1%Added
Raymond James Financial Inc420,805$38.2M0.01%−6,141−1.4%Reduced
KBC Group NV421,598$38.3M0.09%−120,387−22.2%Reduced
Anchor Capital Advisors LLC445,006$40.4M1.17%−8,261−1.8%Reduced
Qube Research & Technologies Ltd447,928$40.6M0.06%−493,813−52.4%Reduced
FIL Ltd451,803$41.0M0.03%+187,190+70.7%Added
Alliancebernstein L.P.467,886$42.5M0.01%+25,088+5.7%Added
Clark Capital Management Group, Inc.485,122$44.0M0.28%+7,628+1.6%Added
LPL Financial LLC517,722$47.0M0.01%+43,643+9.2%Added
California State Teachers Retirement System520,570$47.2M0.05%−47,903−8.4%Reduced
New York State Common Retirement Fund531,830$48.3M0.06%−6,497−1.2%Reduced
BNP Paribas Arbitrage, SA544,292$49.4M0.04%+52,461+10.7%Added
Davis Asset Management, L.P.550,000$49.9M1.78%00.0%Unchanged
Bank of Montreal581,126$52.7M0.02%+117,193+25.3%Added
Canada Pension Plan Investment Board587,925$53.3M0.04%+46,577+8.6%Added
Federated Hermes, Inc.594,408$53.9M0.10%−382,521−39.2%Reduced
General American Investors Co Inc600,000$54.4M3.41%00.0%Unchanged
D. E. Shaw & Co., Inc.613,436$55.7M0.04%+274,300+80.9%Added
Price T Rowe Associates Inc613,992$55.7M0.01%−131,102−17.6%Reduced
National Pension Service629,611$57.1M0.04%+31,408+5.3%Added
Port Capital LLC650,272$59.0M2.46%−1,374−0.2%Reduced
Gladstone Capital Management LLP654,979$59.4M6.49%−510,947−43.8%Reduced
Rhumbline Advisers680,258$61.7M0.05%−3,418−0.5%Reduced
William Blair Investment Management, LLC689,145$62.5M0.16%−63,179−8.4%Reduced
American Century Companies Inc707,880$64.2M0.03%+7,251+1.0%Added
Ameriprise Financial Inc726,643$65.9M0.02%−642,005−46.9%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.746,266$67.7M0.05%+28,618+4.0%Added
Franklin Resources Inc802,031$72.8M0.02%+12,060+1.5%Added
Man Group plc833,356$75.6M0.15%+141,312+20.4%Added
GQG Partners LLC865,941$78.6M0.12%+1,596+0.2%Added
Millennium Management LLC921,938$83.6M0.07%−922,484−50.0%Reduced
Marshall Wace, LLP934,287$84.8M0.09%+911,036+3,918.3%Added
AQR Capital Management LLC940,141$84.8M0.05%−177,600−15.9%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.964,978$87.1M0.23%+82,333+9.3%Added
Stifel Financial Corp976,236$88.6M0.08%−14,057−1.4%Reduced
Assetmark, Inc990,472$89.9M0.19%−98,342−9.0%Reduced
Lord, Abbett & Co. LLC992,822$90.1M0.27%+82,069+9.0%Added
Sumitomo Mitsui Trust Holdings, Inc.999,965$90.7M0.05%−47,056−4.5%Reduced
Worldquant Millennium Advisors LLC1,016,883$92.3M0.40%+309,844+43.8%Added
Robeco Institutional Asset Management B.V.1,029,515$93.4M0.14%+512,879+99.3%Added
Swiss National Bank1,080,300$98.0M0.06%−57,000−5.0%Reduced
Maren Capital LLC1,096,213$99.5M5.54%+295,412+36.9%Added
Two Sigma Advisers, LP1,099,000$99.7M0.20%+646,900+143.1%Added
Brown Advisory Inc1,179,312$107.0M0.14%−5,836−0.5%Reduced
FMR LLC1,248,930$113.3M0.01%+190,762+18.0%Added