Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionStrid Group, LLC
Latest Disclosed Ownership15,606 shares
Latest Disclosed Value $ 1,498,020
Strid Group, LLC reports 29.88% increase in ownership of ACGL / Arch Capital Group Ltd.

On April 29, 2026 - Strid Group, LLC filed a 13F-HR form disclosing ownership of 15,606 shares of Arch Capital Group Ltd. (US:ACGL) valued at $1,498,020 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 12,016 shares of Arch Capital Group Ltd.. This represents a change in shares of 29.88% during the quarter. The current value of the position is $1,378,634 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)
2026-04-29 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 15,606 3,590 29.88 1,498 30.03 0.1857
2026-01-26 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 12,016 -1,089 -8.31 1,153 -3.11 0.1435
2025-10-15 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 13,105 0 0.00 1,189 -0.34 0.1511
2025-07-22 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 13,105 0 0.00 1,193 -5.32 0.1678
2025-04-25 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 13,105 4,595 54.00 1,260 60.51 0.1957
2025-01-28 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 8,510 0 0.00 786 -17.54 0.1227
2024-10-16 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 8,510 -28 -0.33 952 10.57 0.1448
2024-07-17 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 8,538 -982 -10.32 861 -2.16 0.1425
2024-04-24 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 9,520 0 0.00 880 24.47 0.1582
2024-01-31 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 9,520 0 0.00 707 -6.73 0.1429
2023-10-10 2023-09-30 13F ARCH CAP GROUP ORD G0450A105 9,520 0 0.00 759 6.46 0.1586
2023-07-25 2023-06-30 13F ARCH CAP GROUP ORD G0450A105 9,520 -5,208 -35.36 713 -28.73 0.1464
2023-04-24 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 14,728 -2,543 -14.72 1,000 -7.84 0.2207
2023-01-27 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 17,271 -3,498 -16.84 1,084 14.59 0.2583
2022-10-12 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 20,769 -6,133 -22.80 946 -22.71 0.2395
2022-07-11 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 26,902 -4,142 -13.34 1,224 -18.56 0.2822
2022-04-11 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 31,044 3,065 10.95 1,503 20.82 0.3075
2022-01-14 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 27,979 576 2.10 1,244 18.93 0.2549
2021-10-08 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 27,403 0 0.00 1,046 0.19 0.2340
2021-07-28 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 27,403 980 3.71 1,044 2.96 0.2355
2021-04-23 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 26,423 3,905 17.34 1,014 24.88 0.2492
2021-02-05 2020-12-31 13F ARCH CAP GROUP ORD G0450A105 22,518 -266 -1.17 812 21.92 0.2187
2020-10-23 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 22,784 0 0.00 666 1.99 0.2037
2020-07-09 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 22,784 4,177 22.45 653 23.21 0.2181
2020-04-09 2020-03-31 13F ARCH CAP GROUP ORD G0450A105 18,607 826 4.65 530 -30.54 0.2158
2020-01-17 2019-12-31 13F ARCH CAP GROUP ORD G0450A105 17,781 -949 -5.07 763 -2.93 0.2423
2019-10-22 2019-09-30 13F ARCH CAP GROUP ORD G0450A105 18,730 0 0.00 786 13.09 0.2708
2019-08-02 2019-06-30 13F ARCH CAP GROUP ORD G0450A105 18,730 -6,683 -26.30 695 -15.35 0.2378
2019-05-13 2019-03-31 13F ARCH CAP GROUP ORD G0450A105 25,413 0 0.00 821 20.91 0.3004
2019-01-28 2018-12-31 13F ARCH CAP GROUP ORD G0450A105 25,413 1,174 4.84 679 -6.09 0.2774
2018-11-14 2018-09-30 13F ARCH CAP GROUP ORD G0450A105 24,239 -17,350 -41.72 723 -34.27 0.2559
2018-08-14 2018-06-30 13F ARCH CAP GROUP ORD G0450A105 41,589 41,589 1,100 0.4056
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.