아치 캐피털 그룹(주)
DE ˙ DB ˙ BMG0450A1053
€75.52 ↑0.34 (0.45%)
2026-06-05
주가
SecurityDE:RSK / Arch Capital Group Ltd.
InstitutionTcw Group Inc
Latest Disclosed Ownership6,741 shares
Latest Disclosed Value $ 647,069
Tcw Group Inc reports 42.27% decrease in ownership of RSK / Arch Capital Group Ltd.

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 6,741 shares of Arch Capital Group Ltd. (DE:RSK) valued at $558,222 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 11,677 shares of Arch Capital Group Ltd.. This represents a change in shares of -42.27% during the quarter. The current value of the position is $509,080 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)
2026-05-14 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 6,741 -4,936 -42.27 647 -42.23 0.0049
2026-02-17 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 11,677 11,677 1,120 0.0080
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 0 -68,577 -100.00 0 -100.00
2025-08-14 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 68,577 -10,136 -12.88 6,244 -17.53 0.0489
2025-05-07 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 78,713 364 0.46 7,571 4.63 0.0677
2025-02-04 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 78,349 459 0.59 7,236 -16.97 0.0608
2024-11-19 2024-09-30 13F/A-1 ARCH CAP GROUP ORD G0450A105 77,890 -756 -0.96 8,714 9.83 0.0762
2024-11-08 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 77,890 -756 8,714 0.0392
2024-07-19 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 78,646 30,447 63.17 7,935 78.09 0.0709
2024-05-10 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 48,199 -103 -0.21 4,456 24.23 0.0451
2024-02-09 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 48,302 4,744 10.89 3,586 3.28 0.0400
2023-11-15 2023-09-30 13F ARCH CAP GROUP ORD G0450A105 43,558 -35,942 -45.21 3,472 -41.65 0.0436
2023-08-14 2023-06-30 13F ARCH CAP GROUP ORD G0450A105 79,500 35,058 78.88 5,951 97.28 0.0660
2023-05-15 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 44,442 3,230 7.84 3,016 16.58 0.0386
2023-02-14 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 41,212 -265 -0.64 2,587 36.95 0.0370
2022-10-27 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 41,477 2,625 6.76 1,889 6.90 0.0276
2022-07-19 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 38,852 -261 -0.67 1,767 -6.71 0.0231
2022-04-19 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 39,113 140 0.36 1,894 9.35 0.0181
2022-01-26 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 38,973 -3,408 -8.04 1,732 7.05 0.0142
2021-10-26 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 42,381 -21,949 -34.12 1,618 -35.41 0.0042
2021-07-23 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 64,330 8,426 15.07 2,505 16.78 0.0217
2021-05-05 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 55,904 9,358 20.10 2,145 27.75 0.0206
2021-02-02 2020-12-31 13F ARCH CAP GROUP ORD G0450A105 46,546 10,802 30.22 1,679 60.52 0.0146
2020-10-30 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 35,744 6,171 20.87 1,046 23.49 0.0114
2020-08-05 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 29,573 483 1.66 847 2.29 0.0099
2020-05-05 2020-03-31 13F ARCH CAP GROUP ORD G0450A105 29,090 6,615 29.43 828 -14.11 0.0114
2020-02-10 2019-12-31 13F ARCH CAP GROUP ORD G0450A105 22,475 0 0.00 964 2.12 0.0107
2019-11-13 2019-09-30 13F ARCH CAP GROUP ORD G0450A105 22,475 0 0.00 944 13.33 0.0108
2019-08-07 2019-06-30 13F ARCH CAP GROUP ORD G0450A105 22,475 0 0.00 833 14.74 0.0089
2019-05-13 2019-03-31 13F ARCH CAP GROUP ORD G0450A105 22,475 -1,025 -4.36 726 15.61 0.0070
2019-02-11 2018-12-31 13F ARCH CAP GROUP ORD G0450A105 23,500 -8,589 -26.77 628 -34.38 0.0065
2018-10-30 2018-09-30 13F ARCH CAP GROUP ORD G0450A105 32,089 760 2.43 957 15.44 0.0078
2018-08-01 2018-06-30 13F ARCH CAP GROUP ORD G0450A105 31,329 31,329 829 0.0067
2017-11-06 2017-09-30 13F ARCH CAP GROUP ORD G0450A105 0 -14,835 -100.00 0 -100.00
2017-08-11 2017-06-30 13F ARCH CAP GROUP ORD G0450A105 14,835 -21,170 -58.80 1,384 -59.45 0.0115
2017-05-11 2017-03-31 13F ARCH CAP GROUP ORD G0450A105 36,005 -4,674 -11.49 3,413 -2.79 0.0285
2017-02-10 2016-12-31 13F ARCH CAP GROUP ORD G0450A105 40,679 -6,576 -13.92 3,511 -6.25 0.0264
2016-11-14 2016-09-30 13F ARCH CAP GROUP ORD G0450A105 47,255 -4,889 -9.38 3,745 -0.24 0.0284
2016-08-12 2016-06-30 13F/A-1 ARCH CAP GROUP ORD G0450A105 52,144 351 0.68 3,754 1.96 0.0284
2016-08-11 2016-06-30 13F ARCH CAP GROUP ORD G0450A105 52,144 3,754
2016-05-16 2016-03-31 13F ARCH CAP GROUP ORD G0450A105 51,793 5,826 12.67 3,682 14.85 0.0270
2016-02-16 2015-12-31 13F ARCH CAP GROUP ORD G0450A105 45,967 -9,633 -17.33 3,206 -21.52 0.0230
2015-11-13 2015-09-30 13F ARCH CAP GROUP ORD G0450A105 55,600 -4,620 -7.67 4,085 1.31 0.0293
2015-08-12 2015-06-30 13F ARCH CAP GROUP ORD G0450A105 60,220 -9,516 -13.65 4,032 -6.15 0.0260
2015-05-13 2015-03-31 13F ARCH CAP GROUP ORD G0450A105 69,736 -15,458 -18.14 4,296 -14.68 0.0206
2015-02-13 2014-12-31 13F ARCH CAP GROUP ORD G0450A105 85,194 5,198 6.50 5,035 15.03 0.0211
2014-11-14 2014-09-30 13F ARCH CAP GROUP ORD G0450A105 79,996 -3,108 -3.74 4,377 -8.30 0.0176
2014-08-14 2014-06-30 13F ARCH CAP GROUP ORD G0450A105 83,104 1,963 2.42 4,773 2.25 0.0197
2014-05-13 2014-03-31 13F ARCH CAP GROUP ORD G0450A105 81,141 -700 -0.86 4,668 -4.44 0.0194
2014-02-18 2013-12-31 13F/A-1 ARCH CAP GROUP ORD G0450A105 81,841 -15,649 -16.05 4,885 -7.43 0.0206
2014-02-14 2013-12-31 13F ARCH CAP GROUP ORD G0450A105 4,885 81,841
2013-11-14 2013-09-30 13F ARCH CAP GROUP ORD G0450A105 97,490 -124 -0.13 5,277 5.16 0.0244
2013-08-14 2013-06-30 13F/A-1 ARCH CAP GROUP ORD G0450A105 97,614 97,614 5,018 0.0247
2013-08-14 2013-06-30 13F ARCH CAP GROUP ORD G0450A105 97,614 5,018
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.