Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionAmundi
Latest Disclosed Ownership1,959,309 shares
Latest Disclosed Value $ 188,074,071
Amundi reports 0.67% decrease in ownership of ACGL / Arch Capital Group Ltd.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 1,959,309 shares of Arch Capital Group Ltd. (US:ACGL) valued at $188,074,071 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,972,542 shares of Arch Capital Group Ltd.. This represents a change in shares of -0.67% during the quarter. The current value of the position is $172,203,668 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 1,959,309 -13,233 -0.67 188,074 -0.60 0.0216
2026-02-17 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 1,972,542 -36,908 -1.84 189,206 3.07 0.0514
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 2,009,450 302,126 17.70 183,563 21.65 0.0590
2025-08-13 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 1,707,324 24,113 1.43 150,893 -6.89 0.0521
2025-05-15 2025-03-31 13F ARCH CAPITAL GROUP ORD G0450A105 1,683,211 410,825 32.29 162,060 37.46 0.0590
2025-02-07 2024-12-31 13F ARCH CAPITAL GROUP ORD G0450A105 1,272,386 314,796 32.87 117,899 12.02 0.0410
2024-11-13 2024-09-30 13F ARCH CAPITAL GROUP ORD G0450A105 957,590 46,759 5.13 105,249 18.33 0.0388
2024-08-14 2024-06-30 13F ARCH CAPITAL GROUP ORD G0450A105 910,831 75,091 8.98 88,943 16.45 0.0341
2024-05-15 2024-03-31 13F ARCH CAPITAL GROUP ORD G0450A105 835,740 30,881 3.84 76,378 24.62 0.0328
2024-02-14 2023-12-31 13F ARCH CAPITAL GROUP ORD G0450A105 804,859 52,075 6.92 61,290 -3.26 0.0276
2023-11-14 2023-09-30 13F ARCH CAPITAL GROUP ORD G0450A105 752,784 62,625 9.07 63,354 24.07 0.0311
2023-08-14 2023-06-30 13F ARCH CAPITAL GROUP ORD G0450A105 690,159 238,269 52.73 51,065 64.75 0.0258
2023-05-15 2023-03-31 13F ARCH CAPITAL GROUP ORD G0450A105 451,890 -14,188 -3.04 30,995 5.81 0.0167
2023-02-14 2022-12-31 13F ARCH CAPITAL GROUP ORD G0450A105 466,078 142,689 44.12 29,293 88.87 0.0161
2022-11-14 2022-09-30 13F ARCH CAPITAL GROUP ORD G0450A105 323,389 92,514 40.07 15,510 58.17 0.0092
2022-09-02 2022-06-30 13F/A-1 ARCH CAPITAL GROUP ORD G0450A105 230,875 -28,955 -11.14 9,806 -20.31 0.0079
2022-08-15 2022-06-30 13F ARCH CAPITAL GROUP ORD G0450A105 230,875 -28,955 9,806 0.0005
2022-05-16 2022-03-31 13F ARCH CAPITAL GROUP ORD G0450A105 259,830 -16,352 -5.92 12,305 -4.68 0.0083
2022-02-14 2021-12-31 13F ARCH CAPITAL GROUP ORD G0450A105 276,182 -30,101 -9.83 12,909 10.39 0.0082
2021-11-15 2021-09-30 13F ARCH CAPITAL GROUP ORD G0450A105 306,283 57,757 23.24 11,694 129,833.33 0.0082
2021-08-16 2021-06-30 13F ARCH CAPITAL GROUP ORD G0450A105 248,526 248,526 10 0.0067
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.