Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership29,175 shares
Latest Disclosed Value $ 2,800,952
Advisor Group Holdings, Inc. reports 5.18% increase in ownership of ACGL / Arch Capital Group Ltd.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 29,175 shares of Arch Capital Group Ltd. (US:ACGL) valued at $2,800,508 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 27,738 shares of Arch Capital Group Ltd.. This represents a change in shares of 5.18% during the quarter. The current value of the position is $2,564,191 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 29,175 1,437 5.18 2,801 5.22 0.0024
2026-02-17 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 27,738 -80,022 -74.26 2,661 -72.80 0.0039
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 107,760 -2,224 -2.02 9,784 -6.93 0.0137
2025-09-04 2025-06-30 13F/A-1 RCH CAP GROUP ORD G0450A105 109,984 93,067 550.14 10,513 546.10 0.0187
2025-08-13 2025-06-30 13F RCH CAP GROUP ORD G0450A105 115,568 98,651 11,040 0.0128
2025-05-12 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 16,917 -30,358 -64.22 1,628 -61.61 0.0036
2025-06-06 2024-12-31 13F/A-1 ARCH CAP GROUP ORD G0450A105 47,275 -2,286 -4.61 4,238 -23.56 0.0095
2025-02-07 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 44,473 -5,088 4,218 0.0108
2024-11-13 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 49,561 -4,423 -8.19 5,545 1.80 0.0125
2024-08-13 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 53,984 -19,919 -26.95 5,446 -20.28 0.0129
2024-05-10 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 73,903 -145,832 -66.37 6,831 -58.14 0.0153
2024-02-12 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 219,735 -31,720 -12.61 16,319 -18.58 0.0286
2023-11-13 2023-09-30 13F ARCH CAP GROUP ORD G0450A105 251,455 131,690 109.96 20,043 123.61 0.0296
2023-08-21 2023-06-30 13F/A-1 ARCH CAP GROUP ORD G0450A105 119,765 22,943 23.70 8,964 36.40 0.0161
2023-08-10 2023-06-30 13F ARCH CAP GROUP ORD G0450A105 126,412 29,590 8,957 0.0024
2023-05-12 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 96,822 25,455 35.67 6,571 46.74 0.0124
2023-02-10 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 71,367 11,554 19.32 4,479 64.45 0.0091
2022-11-14 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 59,813 11,407 23.57 2,723 23.10 0.0062
2022-08-10 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 48,406 -1,926 -3.83 2,212 -10.73 0.0049
2022-05-04 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 50,332 12,721 33.82 2,478 48.21 0.0048
2022-02-03 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 37,611 22,942 156.40 1,672 198.57 0.0032
2021-11-05 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 14,669 2,262 18.23 560 15.70 0.0012
2021-08-02 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 12,407 1,614 14.95 484 16.91 0.0010
2021-05-13 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 10,793 2,995 38.41 414 47.86 0.0010
2021-02-10 2020-12-31 13F ARCH CAP GROUP ORD G0450A105 7,798 -345 -4.24 280 17.65 0.0007
2020-11-12 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 8,143 -898 -9.93 238 -8.46 0.0007
2020-08-14 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 9,041 -19,398 -68.21 260 -67.82 0.0009
2020-05-18 2020-03-31 13F ARCH CAP GROUP ORD G0450A105 28,439 28,439 808 0.0033
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.