Francois Morin - 18 Aug 2026 Form 4 Insider Report for ARCH CAPITAL GROUP LTD. (ACGL)

Reporting relationship: CFO and Treasurer
Issuer ticker: ACGL
Reported as of: 18 Aug 2026
Net transaction value: -$1,093,529
SEC form: 4
Accepted by SEC: 20 Aug 2026, 16:49:54 UTC
Prior SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Louis Petrillo, Attorney-in-Fact

Key filing fact

Francois Morin filed Form 4 for ARCH CAPITAL GROUP LTD. (ACGL) on 20 Aug 2026.

Key facts

This page summarizes Francois Morin's Form 4 filing for ARCH CAPITAL GROUP LTD. (ACGL).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 Aug 2026, 16:49.

Change

Previous filing in this sequence was filed on 05 Mar 2026.
Current net transaction value: -$1,093,529.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001741826 Primary reporting owner

Morin Francois

Relationship: CFO and Treasurer
Address: WATERLOO HOUSE, GROUND FLOOR, 100 PITTS BAY ROAD, PEMBROKE, BERMUDA
Signature: /s/ Louis Petrillo, Attorney-in-Fact
Signature date: 20 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ACGL transaction

Common Shares, $.0011 par value per share

Options Exercise

Transaction value
Shares: +11,010
Change %: +6%
Price: $27.09^*
Shares after: 195,836
Date: 18 Aug 2026
Ownership: Direct

ACGL transaction

Common Shares, $.0011 par value per share

Sale

Transaction value: $1,093,529
Shares: -11,010
Change %: -5.6%
Price: $99.32
Shares after: 184,826
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F1, F2

ACGL holding

Common Shares, $.0011 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 114,229
Date: 18 Aug 2026
Ownership: By Trust
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ACGL transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -11,010
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 18 Aug 2026
Ownership: Direct
Underlying class: Common Shares, $.0011 par value per share
Underlying amount: 11,010
Exercise price: $27.09
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $99.14 to $99.56. Upon request, the full information regarding the number of shares sold at each separate price within the range will be provided to the issuer, any security holder of the issuer or the staff of the Securities Exchange Commission.

Footnote F2

Amount includes 267 Common Shares acquired on May 29, 2026 under the Arch Capital Group Ltd. Employee Share Purchase Plan.

Footnote F3

The shares were previously owned directly in a joint account with the insider's spouse and were contributed to a revocable trust for the benefit of the insider's spouse.

Footnote F4

This stock option is exercisable in three equal annual installments commencing May 8, 2018, and the next two installments on May 8, 2019 and May 8, 2020, subject to the applicable award agreement.