Latest Period
Q1 2026
Security Snapshot
ARCH CAPITAL GROUP LTD. - Common Stock (ACGL) Institutional Ownership
CUSIP: G0450A105
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
908
Shares (Excl. Options)
317,460,392
Price
$95.99
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- Security type / class
- Equity / Common Stock
- Symbol
- ACGL on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 317,460,392
- Total 13F value
- $30,450,374,973
- Portfolio coverage rank
- 0.02%
- Share change
- -7,182,326
- Value change
- -$694,795,782
- Number of holders
- 908
- Shares outstanding
- 356,621,255
- SEC-reported price per share
- $97.06
- Insider filing price
- $97.06
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ACGL - ARCH CAPITAL GROUP LTD. - Common Stock is tracked under CUSIP G0450A105.
- 908 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 908 to 89 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $30,450,374,973 to $328,877,085.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 908 institutions filings for Q1 2026.
Security key
G0450A105
Latest holder period
Q1 2026
13F holders
908
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
ACGL full holder history
ARCH CAPITAL GROUP LTD. SEC filings
ARCH CAPITAL GROUP LTD. company facts
ARCH CAPITAL GROUP LTD. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G0450A105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
ACGL
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 7.3% | $2,509,211,045 | 26,140,338 | Vanguard Capital Management | 31 Mar 2026 | |||
| BAMCO INC /NY/ | 5% | -9.2% | $1,677,154,966 | -$255,277,320 | 17,987,505 | -13% | Baron Capital Group, Inc. | 31 Dec 2025 |
As of 31 Mar 2026, 908 institutional investors reported holding 317,460,392 shares of ARCH CAPITAL GROUP LTD. - Common Stock (ACGL). This represents 89% of the company’s total 356,621,255 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
59%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.8% | 31,354,204 | -1.2% | 0.05% | $3,009,689,978 |
| Artisan Partners Limited Partnership | 6.4% | 22,666,011 | -2.5% | 3.5% | $2,175,710,396 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.3% | 22,612,609 | 0% | 0.05% | $2,170,584,338 |
| BAMCO INC /NY/ | 4.7% | 16,709,759 | -7.1% | 4.8% | $1,603,969,766 |
| STATE STREET CORP | 4.6% | 16,250,722 | -1.2% | 0.05% | $1,559,906,805 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.1% | 14,712,819 | 0% | 0.07% | $1,412,283,496 |
| WCM INVESTMENT MANAGEMENT, LLC | 3.5% | 12,602,412 | -5.1% | 2.8% | $1,205,042,680 |
| GEODE CAPITAL MANAGEMENT, LLC | 3% | 10,586,271 | +1.1% | 0.06% | $1,012,639,995 |
| JPMORGAN CHASE & CO | 1.9% | 6,781,647 | +0.6% | 0.04% | $648,461,138 |
| NORTHERN TRUST CORP | 1.3% | 4,472,652 | -3.5% | 0.06% | $429,329,865 |
| MORGAN STANLEY | 1.2% | 4,260,419 | -0.67% | 0.02% | $408,957,822 |
| DIMENSIONAL FUND ADVISORS LP | 1.2% | 4,173,885 | +2.9% | 0.08% | $400,642,660 |
| Madison Asset Management, LLC | 1.1% | 4,076,446 | -5.9% | 4.9% | $391,298,084 |
| Invesco Ltd. | 1.1% | 4,059,380 | +5.1% | 0.05% | $389,659,885 |
| Allspring Global Investments Holdings, LLC | 1% | 3,631,694 | -0.93% | 0.58% | $346,790,413 |
| ROYAL BANK OF CANADA | 0.99% | 3,532,044 | +4.7% | 0.06% | $339,041,000 |
| Polar Capital Holdings Plc | 0.93% | 3,300,000 | -0.9% | 1.4% | $316,767,000 |
| Legal & General Group Plc | 0.92% | 3,287,725 | +12% | 0.07% | $315,588,721 |
| PRINCIPAL FINANCIAL GROUP INC | 0.92% | 3,274,219 | -28% | 0.17% | $314,296,043 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.89% | 3,179,752 | +1.2% | 0.06% | $305,224,395 |
| MARSHFIELD ASSOCIATES | 0.86% | 3,051,421 | +5.7% | 5.9% | $292,905,894 |
| GOLDMAN SACHS GROUP INC | 0.8% | 2,859,967 | -3.1% | 0.04% | $274,528,242 |
| AQR CAPITAL MANAGEMENT LLC | 0.77% | 2,731,571 | +2.3% | 0.12% | $260,701,097 |
| FIRST TRUST ADVISORS LP | 0.74% | 2,626,148 | +320% | 0.18% | $252,083,923 |
| NATIXIS ADVISORS, LLC | 0.65% | 2,331,537 | +8.6% | 0.31% | $223,804,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q1 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 3,377,115 | $328,877,085 | +$9,290,439 | $97.06 | 89 |
| 2026 Q1 | 317,460,392 | $30,450,374,973 | -$694,795,782 | $95.99 | 908 |
| 2025 Q4 | 325,170,984 | $31,184,742,114 | -$152,478,124 | $95.92 | 918 |
| 2025 Q3 | 326,023,270 | $29,557,629,542 | -$906,296,882 | $90.73 | 837 |
| 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 |