Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership4,807 shares
Latest Disclosed Value $ 461,430
Signaturefd, Llc reports 1.50% decrease in ownership of ACGL / Arch Capital Group Ltd.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 4,807 shares of Arch Capital Group Ltd. (US:ACGL) valued at $461,424 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 4,880 shares of Arch Capital Group Ltd.. This represents a change in shares of -1.50% during the quarter. The current value of the position is $438,350 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)
2026-04-07 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 4,807 -73 -1.50 461 -1.50 0.0071
2026-01-20 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 4,880 675 16.05 468 22.83 0.0071
2025-10-21 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 4,205 697 19.87 381 19.44 0.0060
2025-07-16 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 3,508 553 18.71 319 12.32 0.0054
2025-05-02 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 2,955 -141 -4.55 284 -0.35 0.0054
2025-02-10 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 3,096 144 4.88 286 -13.64 0.0054
2024-10-21 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 2,952 187 6.76 330 18.71 0.0063
2024-07-29 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 2,765 -114 -3.96 279 4.51 0.0057
2024-05-03 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 2,879 505 21.27 266 51.14 0.0056
2024-02-01 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 2,374 82 3.58 176 -3.30 0.0041
2023-11-03 2023-09-30 13F ARCH CAP GROUP ORD G0450A105 2,292 146 6.80 183 13.75 0.0048
2023-08-01 2023-06-30 13F ARCH CAP GROUP ORD G0450A105 2,146 250 13.19 161 25.00 0.0041
2023-04-28 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 1,896 439 30.13 129 40.66 0.0035
2023-01-30 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 1,457 357 32.45 91 82.00 0.0027
2022-11-08 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 1,100 225 25.71 50 25.00 0.0017
2022-08-10 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 875 9 1.04 40 -4.76 0.0014
2022-05-02 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 866 0 0.00 42 10.53 0.0013
2022-01-25 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 866 324 59.78 38 80.95 0.0012
2021-10-28 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 542 -39 -6.71 21 -8.70 0.0007
2021-07-26 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 581 205 54.52 23 64.29 0.0009
2021-04-30 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 376 0 0.00 14 0.00 0.0006
2021-02-11 2020-12-31 13F ARCH CAP GROUP ORD G0450A105 376 -8 -2.08 14 27.27 0.0007
2020-11-03 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 384 -64 -14.29 11 -15.38 0.0006
2020-07-30 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 448 -560 -55.56 13 -55.17 0.0008
2020-04-23 2020-03-31 13F ARCH CAP GROUP ORD G0450A105 1,008 -56 -5.26 29 -36.96 0.0025
2020-02-05 2019-12-31 13F ARCH CAP GROUP ORD G0450A105 1,064 -54 -4.83 46 -2.13 0.0034
2019-10-16 2019-09-30 13F ARCH CAP GROUP ORD G0450A105 1,118 471 72.80 47 95.83 0.0039
2019-07-31 2019-06-30 13F ARCH CAP GROUP ORD G0450A105 647 98 17.85 24 33.33 0.0021
2019-05-09 2019-03-31 13F ARCH CAP GROUP ORD G0450A105 549 108 24.49 18 50.00 0.0015
2019-02-13 2018-12-31 13F ARCH CAP GROUP ORD G0450A105 441 -106 -19.38 12 -25.00 0.0011
2018-11-14 2018-09-30 13F ARCH CAP GROUP ORD G0450A105 547 43 8.53 16 23.08 0.0016
2018-08-14 2018-06-30 13F ARCH CAP GROUP ORD G0450A105 504 391 346.02 13 30.00 0.0015
2018-05-08 2018-03-31 13F ARCH CAP GROUP ORD G0450A105 113 36 46.75 10 66.67 0.0012
2016-11-14 2016-09-30 13F ARCH CAP GROUP ORD G0450A105 77 60 352.94 6 500.00 0.0009
2016-07-29 2016-06-30 13F ARCH CAP GROUP ORD G0450A105 17 0 0.00 1 0.00 0.0001
2016-05-12 2016-03-31 13F ARCH CAP GROUP ORD G0450A105 17 17 0.00 1 0.0002
2016-01-22 2015-12-31 13F ARCH CAP GROUP ORD G0450A105 0 -18 -100.00 0 -100.00
2015-10-23 2015-09-30 13F ARCH CAP GROUP ORD G0450A105 18 18 0.00 1 0.0002
2014-11-13 2014-09-30 13F ARCH CAP GROUP ORD G0450A105 0 -18 -100.00 0 -100.00
2014-08-14 2014-06-30 13F ARCH CAP GROUP ORD G0450A105 18 18 1 0.0003
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.