Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionXponance, Inc.
Latest Disclosed Ownership65,255 shares
Latest Disclosed Value $ 6,263,827
Xponance, Inc. reports 13.53% increase in ownership of ACGL / Arch Capital Group Ltd.

On May 13, 2026 - Xponance, Inc. filed a 13F-HR form disclosing ownership of 65,255 shares of Arch Capital Group Ltd. (US:ACGL) valued at $6,263,827 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 57,476 shares of Arch Capital Group Ltd.. This represents a change in shares of 13.53% during the quarter. The current value of the position is $5,735,262 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)
2026-05-13 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 65,255 7,779 13.53 6,264 13.60 0.0445
2026-02-12 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 57,476 2,372 4.30 5,513 10.28 0.0414
2025-11-12 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 55,104 -1,767 -3.11 5,000 -3.46 0.0396
2025-08-14 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 56,871 2,246 4.11 5,178 -1.43 0.0433
2025-05-01 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 54,625 -446 -0.81 5,254 3.30 0.0508
2025-02-11 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 55,071 3,841 7.50 5,086 -11.27 0.0464
2024-11-12 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 51,230 1,117 2.23 5,732 13.37 0.0553
2024-08-14 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 50,113 -5,509 -9.90 5,056 -1.67 0.0517
2024-05-13 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 55,622 -14,945 -21.18 5,142 -1.91 0.0539
2024-01-31 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 70,567 -8,105 -10.30 5,241 -16.41 0.0628
2023-10-24 2023-09-30 13F ARCH CAP GROUP ORD G0450A105 78,672 -807 -1.02 6,271 5.40 0.0853
2023-07-14 2023-06-30 13F ARCH CAP GROUP ORD G0450A105 79,479 -7,233 -8.34 5,949 1.09 0.0792
2023-04-18 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 86,712 1,170 1.37 5,885 9.59 0.0860
2023-01-24 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 85,542 67,268 368.11 5,370 545.43 0.0870
2022-10-24 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 18,274 -325 -1.75 832 -1.65 0.0160
2022-08-02 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 18,599 4,989 36.66 846 28.38 0.0170
2022-04-20 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 13,610 292 2.19 659 11.32 0.0110
2022-01-31 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 13,318 -113 -0.84 592 15.40 0.0093
2021-11-05 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 13,431 -1,653 -10.96 513 -12.61 0.0097
2021-08-12 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 15,084 15,084 587 0.0108
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.