Arch Capital (ACGL) director buys 5,300 shares in open market

Rhea-AI Filing Summary

ARCH CAPITAL GROUP LTD. director Daniel Joseph Houston reported an open-market purchase of 5,300 common shares on April 30, 2026, at a weighted average price of $94.085 per share. Following this transaction, his direct ownership increased to 9,915 common shares of the company.

Insider Trade Summary

Net Buyer: 5,300 shares ($498,650)

Net Buy 1 txn

Insider Houston Daniel Joseph

Role null

Bought 5,300 shs ($499K)

Type	Security	Shares	Price	Value
Purchase	Common Shares, $.0011 par value per share	5,300	$94.085	$499K

Holdings After Transaction: Common Shares, $.0011 par value per share — 9,915 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares purchased: 5,300 shares Purchase price per share: $94.085 per share Shares owned after transaction: 9,915 shares +1 more

4 metrics

Shares purchased 5,300 shares Open-market purchase on April 30, 2026

Purchase price per share $94.085 per share Weighted average price for the 5,300 shares

Shares owned after transaction 9,915 shares Direct ownership following the reported purchase

Net buy shares 5,300 shares Net change in position from this Form 4

Key Terms

open-market purchase, Form 4, weighted average price, Common Shares, $.0011 par value per share

4 terms

open-market purchase financial

"Transaction classified as an open-market purchase of common shares"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Form 4 regulatory

"Insider transaction was reported to the SEC on Form 4"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

weighted average price financial

"The price reported represents a weighted average price for the shares"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Common Shares, $.0011 par value per share financial

"Security title listed as Common Shares, $.0011 par value per share"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Houston Daniel Joseph

(Last) (First) (Middle)

WATERLOO HOUSE, GROUND FLOOR

100 PITTS BAY ROAD

(Street)

PEMBROKE HM 08

(City) (State) (Zip)

BERMUDA

(Country)

2. Issuer Name and Ticker or Trading Symbol
ARCH CAPITAL GROUP LTD. [ ACGL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Shares, $.0011 par value per share	04/30/2026		P		5,300	A	$94.085(1)	9,915	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $94.02 to $94.11. 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.

Remarks:

	/s/ Daniel Joseph Houston	05/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did ACGL director Daniel Joseph Houston report?

Daniel Joseph Houston reported buying 5,300 Arch Capital common shares in an open-market purchase. The shares were acquired at a weighted average price of $94.085 per share, increasing his direct ownership position as disclosed in the Form 4 filing.

At what price did Daniel Joseph Houston buy Arch Capital (ACGL) shares?

He purchased the shares at a weighted average price of $94.085 per share. The filing notes this single weighted price for 5,300 common shares acquired in the open market, with additional price detail available upon request under SEC procedures.

How many Arch Capital (ACGL) shares does Houston own after this transaction?

After the reported transaction, Houston directly owns 9,915 Arch Capital common shares. This reflects his holdings immediately following the open-market purchase of 5,300 shares disclosed in the Form 4 insider trading report filed with the SEC.

When did the Arch Capital (ACGL) insider share purchase take place?

The insider share purchase occurred on April 30, 2026. On that date, director Daniel Joseph Houston executed an open-market transaction for 5,300 common shares, as recorded in the Form 4 filing detailing his updated ownership position in the company.

Was the ACGL insider transaction a buy or a sell?

The transaction was a buy, classified as an open-market purchase. Daniel Joseph Houston acquired 5,300 Arch Capital common shares, increasing his direct ownership stake, according to the transaction details and classifications in the Form 4 filing.