Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionInvesco Ltd.
Latest Disclosed Ownership4,059,380 shares
Latest Disclosed Value $ 389,659,885
Invesco Ltd. reports 5.13% increase in ownership of ACGL / Arch Capital Group Ltd.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 4,059,380 shares of Arch Capital Group Ltd. (US:ACGL) valued at $389,659,886 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 3,861,473 shares of Arch Capital Group Ltd.. This represents a change in shares of 5.13% during the quarter. The current value of the position is $356,778,908 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)
2026-05-12 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 4,059,380 197,907 5.13 389,660 5.20 0.0596
2026-02-19 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 3,861,473 -203,883 -5.02 370,392 0.42 0.0568
2025-11-13 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 4,065,356 -22,158 -0.54 368,850 -0.89 0.0581
2025-08-13 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 4,087,514 90,824 2.27 372,168 -3.18 0.0633
2025-05-12 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 3,996,690 -108,720 -2.65 384,402 1.39 0.0728
2025-02-13 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 4,105,410 -563,560 -12.07 379,135 -27.42 0.0701
2024-11-12 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 4,668,970 379,170 8.84 522,364 20.69 0.1009
2024-08-13 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 4,289,800 1,644,330 62.16 432,798 76.98 0.0915
2024-05-14 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 2,645,470 -441,619 -14.31 244,547 6.66 0.0525
2024-02-13 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 3,087,089 -298,576 -8.82 229,278 -15.04 0.0546
2023-11-13 2023-09-30 13F ARCH CAP GROUP ORD G0450A105 3,385,665 475,464 16.34 269,871 23.89 0.0727
2023-08-11 2023-06-30 13F ARCH CAP GROUP ORD G0450A105 2,910,201 -343,665 -10.56 217,829 -1.36 0.0571
2023-05-12 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 3,253,866 -191,631 -5.56 220,840 2.09 0.0616
2023-02-13 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 3,445,497 2,711,737 369.57 216,308 547.32 0.0634
2022-11-14 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 733,760 -139,835 -16.01 33,416 -15.91 0.0108
2022-08-15 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 873,595 333,475 61.74 39,738 51.94 0.0120
2022-05-16 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 540,120 31,968 6.29 26,154 15.80 0.0067
2022-02-14 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 508,152 -49,231 -8.83 22,586 6.13 0.0054
2021-11-15 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 557,383 22,969 4.30 21,281 2.26 0.0054
2021-08-17 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 534,414 -87,114 -14.02 20,810 -12.74 0.0051
2021-05-17 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 621,528 -144,083 -18.82 23,848 -13.64 0.0064
2021-02-16 2020-12-31 13F ARCH CAP GROUP ORD G0450A105 765,611 159,973 26.41 27,616 55.90 0.0080
2020-11-16 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 605,638 -17,289 -2.78 17,714 -0.75 0.0060
2020-08-14 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 622,927 130,204 26.43 17,847 27.27 0.0064
2020-05-15 2020-03-31 13F ARCH CAP GROUP ORD G0450A105 492,723 -38,049 -7.17 14,023 -38.40 0.0059
2020-02-14 2019-12-31 13F ARCH CAP GROUP ORD G0450A105 530,772 79,108 17.51 22,766 20.07 0.0071
2019-11-14 2019-09-30 13F ARCH CAP GROUP ORD G0450A105 451,664 59,309 15.12 18,961 30.33 0.0050
2019-08-14 2019-06-30 13F/A-1 ARCH CAP GROUP ORD G0450A105 392,355 -501,068 -56.08 14,549 -49.62 0.0037
2019-08-14 2019-06-30 13F ARCH CAP GROUP ORD G0450A105 392,355 -854,759 14,549
2019-05-15 2019-03-31 13F ARCH CAP GROUP ORD G0450A105 893,423 8,954 1.01 28,876 22.19 0.0097
2019-02-14 2018-12-31 13F ARCH CAP GROUP ORD G0450A105 884,469 103,012 13.18 23,633 1.45 0.0090
2018-11-14 2018-09-30 13F ARCH CAP GROUP ORD G0450A105 781,457 -16,833 -2.11 23,296 10.29 0.0073
2018-08-14 2018-06-30 13F ARCH CAP GROUP ORD G0450A105 798,290 73,618 10.16 21,123 -65.94 0.0070
2018-05-15 2018-03-31 13F ARCH CAP GROUP ORD G0450A105 724,672 -10,865 -1.48 62,025 -7.10 0.0232
2018-02-14 2017-12-31 13F ARCH CAP GROUP ORD G0450A105 735,537 12,012 1.66 66,764 -6.32 0.0241
2017-11-14 2017-09-30 13F ARCH CAP GROUP ORD G0450A105 723,525 -58,725 -7.51 71,267 -2.34 0.0263
2017-08-14 2017-06-30 13F ARCH CAP GROUP ORD G0450A105 782,250 -101,004 -11.44 72,976 -12.82 0.0227
2017-05-15 2017-03-31 13F ARCH CAP GROUP ORD G0450A105 883,254 -142,629 -13.90 83,707 -5.44 0.0275
2017-02-14 2016-12-31 13F ARCH CAP GROUP ORD G0450A105 1,025,883 10,634 1.05 88,523 10.01 0.0298
2016-11-14 2016-09-30 13F ARCH CAP GROUP ORD G0450A105 1,015,249 -43,116 -4.07 80,469 5.60 0.0276
2016-08-15 2016-06-30 13F ARCH CAP GROUP ORD G0450A105 1,058,365 -244,736 -18.78 76,202 -17.75 0.0280
2016-05-16 2016-03-31 13F ARCH CAP GROUP ORD G0450A105 1,303,101 -214,750 -14.15 92,651 -12.49 0.0377
2016-02-16 2015-12-31 13F ARCH CAP GROUP ORD G0450A105 1,517,851 -211,446 -12.23 105,871 -16.67 0.0422
2015-11-16 2015-09-30 13F ARCH CAP GROUP ORD G0450A105 1,729,297 562,778 48.24 127,052 62.66 0.0539
2015-08-14 2015-06-30 13F ARCH CAPITAL GROUP COMMON G0450A105 1,166,519 -5,952 -0.51 78,110 8.15 0.0307
2015-05-15 2015-03-31 13F ARCH CAPITAL GROUP COMMON G0450A105 1,172,471 145,258 14.14 72,225 18.97 0.0279
2015-02-13 2014-12-31 13F ARCH CAPITAL GROUP COMMON G0450A105 1,027,213 22,267 2.22 60,708 10.40 0.0235
2014-11-14 2014-09-30 13F ARCH CAPITAL GROUP COMMON G0450A105 1,004,946 -393,328 -28.13 54,991 -31.53 0.0220
2014-08-14 2014-06-30 13F ARCH CAPITAL GROUP COMMON G0450A105 1,398,274 85,682 6.53 80,317 6.34 0.0316
2014-05-15 2014-03-31 13F ARCH CAPITAL GROUP COMMON G0450A105 1,312,592 -59,684 -4.35 75,527 -7.79 0.0306
2014-02-13 2013-12-31 13F ARCH CAPITAL GROUP COMMON G0450A105 1,372,276 139,366 11.30 81,910 22.73 0.0325
2013-11-13 2013-09-30 13F ARCH CAPITAL GROUP COMMON G0450A105 1,232,910 -51,246 -3.99 66,738 1.09 0.0290
2013-08-14 2013-06-30 13F ARCH CAPITAL GROUP COMMON G0450A105 1,284,156 1,284,156 66,019 0.0308
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.