ARCH CAPITAL GROUP LTD. — fact timeline

ARCH CAPITAL GROUP LTD. incurred senior notes of $1,400,000,000 aggregate principal amount of 5.950% senior notes due 2056 with The Bank of New York Mellon at 5.950% maturing June 15, 2056.

“The Notes were issued pursuant to an indenture (the “Base Indenture”), dated as of May 4, 2004, by and between the Issuer and The Bank of New York Mellon (the “Trustee”), as successor trustee to JPMorgan Chase Bank, as supplemented by a Third Supplemental Indenture, dated as of June 9, 2026, by and between the Issuer and the Trustee (the “Third Supplemental Indenture”, together with the Base Indenture, the “Indenture”).”

ARCH CAPITAL GROUP LTD. incurred senior notes of $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 with The Bank of New York Mellon at 5.250% maturing June 15, 2036.

“The Notes were issued pursuant to an indenture (the “Base Indenture”), dated as of May 4, 2004, by and between the Issuer and The Bank of New York Mellon (the “Trustee”), as successor trustee to JPMorgan Chase Bank, as supplemented by a Third Supplemental Indenture, dated as of June 9, 2026, by and between the Issuer and the Trustee (the “Third Supplemental Indenture”, together with the Base Indenture, the “Indenture”).”

ARCH CAPITAL GROUP LTD. entered into Third Supplemental Indenture with The Bank of New York Mellon valued at $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 and $1,400,000,000 aggregate (effective 2026-06-09).

“On June 9, 2026, Arch Capital Group Ltd. (the “Issuer”), completed the public offering of (i) $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 (the “2036 Notes”) and (ii) $1,400,000,000 aggregate principal amount of 5.950% senior notes due 2056 (the “2056 Notes” and, together with the 2036 Notes, the “Notes”).”

Maamoun Rajeh changed role as President at ARCH CAPITAL GROUP LTD..

“the expansion of Maamoun Rajeh's role as President. Mr. Rajeh, who currently oversees Arch's Reinsurance and Mortgage segments, will also take on responsibility for Arch's Insurance segment”

David Gansberg departed as President at ARCH CAPITAL GROUP LTD..

“David Gansberg is stepping down from his role as a President of Arch effective immediately and will be departing the Company following a distinguished tenure”

ARCH CAPITAL GROUP LTD. entered into Underwriting Agreement with the underwriters named therein valued at $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 and $1,400,000,000 aggregate (effective 2026-06-02).

“On June 2, 2026, Arch Capital Group Ltd. (“ACGL” or the “Issuer”) entered into an Underwriting Agreement pursuant to which the Issuer agreed to sell, and the underwriters named therein agreed to purchase, subject to and upon terms and conditions set forth therein, (i) $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 (the “2036 Notes”) and (ii) $1,400,000,000 aggregate principal amount of 5.950% senior notes due 2056 (the “2056 Notes” and, together with the 2036 Notes, the “Notes”).”

ARCH CAPITAL GROUP LTD. shareholders approved Election of Designated Company Directors of non-U.S. subsidiaries at the 2026-05-05 meeting.

“Item 4 . The vote on the election of certain individuals as Designated Company Directors of certain of ACGL’s non-U.S. subsidiaries. The voting results were as follows: DIRECTOR FOR AGAINST WITHHOLD BROKER NON-VOTES Brian Chen 298,427,871 74,218 90,068 12,666,980 Crystal Doughty 298,414,408 84,856 92,893 12,666,980 Matthew Dragonetti 298,419,033 81,310 91,814 12,666,980 Seamus Fearon 298,423,349 93,001 75,807 12,666,980 Jerome Halgan 298,362,194 137,875 92,088 12,666,980 Chris Hovey 298,415,742 72,161 104,254 12,666,980 François Morin 288,962,539 9,550,613 79,005 12,666,980 David J. Mulholland 298,429,174 70,792 92,191 12,666,980 Chiara Nannini 285,207,244 13,307,088 77,825 12,666,980 Maamoun Rajeh 298,382,593 133,025 76,539 12,666,980 William Soares 298,404,342 71,728 116,087 12,666,980 Alan Tiernan 298,429,894 70,872 91,391 12,666,980 Christine Todd 298,423,644 71,524 96,989 12,666,980”

ARCH CAPITAL GROUP LTD. shareholders approved Ratification of selection of PricewaterhouseCoopers LLP as independent registered public accounting firm at the 2026-05-05 meeting.

“Item 3 . The vote on the ratification of the selection of PricewaterhouseCoopers LLP as ACGL’s independent registered public accounting firm for the year ending December 31, 2026. The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 292,837,090 18,363,136 58,911 —”

ARCH CAPITAL GROUP LTD. shareholders approved Advisory vote to approve named executive officer compensation at the 2026-05-05 meeting.

“Item 2 . The vote on a proposal on advisory vote to approve named executive officer compensation. The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 280,228,167 17,650,116 713,874 12,666,980”

ARCH CAPITAL GROUP LTD. shareholders approved Election of three Class I directors at the 2026-05-05 meeting.

“Item 1. The vote on the election of the three Class I directors to hold office for a term of three years and until their respective successors are duly elected and qualified or their earlier resignation or removal. The voting results were as follows: NOMINEE FOR AGAINST WITHHELD BROKER NON-VOTES Francis Ebong 264,284,191 33,720,096 587,870 12,666,980 Eileen Mallesch 291,998,486 6,510,150 83,521 12,666,980 Brian S. Posner 288,275,104 10,233,019 84,034 12,666,980”

ARCH CAPITAL GROUP LTD. reported the quarter ended March 31, 2026 results: net income $1.0 billion, EPS $2.88 per share.

“Group Ltd. (NASDAQ: ACGL; “Arch,” “our” or “the Company”) announces its 2026 first quarter results. The results included: • Net income available to Arch common shareholders of $1.0 billion, or $2.88 per share, representing a 17.8% annualized net income return on average common equity, compared to net income available to Arch common shareholders of $564 million, or”

Alexander Moczarski was appointed as Director at ARCH CAPITAL GROUP LTD..

“On February 4, 2025, Arch Capital Group Ltd.’s (“ACGL”) Board of Directors (“Board”) unanimously approved the appointment of Alexander Moczarski to serve as a Class III director of the Board, effective February 4, 2025.”

Maamoun Rajeh was appointed as President at ARCH CAPITAL GROUP LTD..

“On November 7, 2024, the board of directors (the “Board”) of Arch Capital Group Ltd. (the “Company”) appointed David Gansberg and Maamoun Rajeh as Presidents of the Company, effective immediately.”

David Gansberg was appointed as President at ARCH CAPITAL GROUP LTD..

“On November 7, 2024, the board of directors (the “Board”) of Arch Capital Group Ltd. (the “Company”) appointed David Gansberg and Maamoun Rajeh as Presidents of the Company, effective immediately.”

Nicolas Papadopoulo was appointed as Chief Executive Officer at ARCH CAPITAL GROUP LTD..

“the Board approved the appointment of Nicolas Papadopoulo as Chief Executive Officer of the Company and as a member of the Board, effective October 13, 2024.”

Marc Grandisson retired as Chief Executive Officer at ARCH CAPITAL GROUP LTD..

“On October 11, 2024, Marc Grandisson, Chief Executive Officer of Arch Capital Group Ltd. (the “Company”), notified the board of directors (the “Board”) of the Company of his decision to retire from his employment with the Company.”

Neal Triplett was appointed as Class II Director at ARCH CAPITAL GROUP LTD..

“On August 27, 2024, Arch Capital Group Ltd.’s (“ACGL”) Board of Directors (“Board”) unanimously approved the appointment of Dan Houston and Neal Triplett to serve as Class II directors of the Board, effective August 27, 2024.”

Dan Houston was appointed as Class II Director at ARCH CAPITAL GROUP LTD..

“On August 27, 2024, Arch Capital Group Ltd.’s (“ACGL”) Board of Directors (“Board”) unanimously approved the appointment of Dan Houston and Neal Triplett to serve as Class II directors of the Board, effective August 27, 2024.”

ARCH CAPITAL GROUP LTD. completed an acquisition involving Allianz Global Risks US Insurance Company for $450 million (closed 2024-08-01).

“consideration for the transactions contemplated by the Master Transaction Agreement, the Company assumed certain liabilities and paid to Seller a base purchase price equal to $450 million, on the terms and subject to the conditions set forth in the Master Transaction Agreement. The material terms of the Master Transaction Agreement were previously reported in Item”

ARCH CAPITAL GROUP LTD. shareholders approved Ratification of selection of PricewaterhouseCoopers LLP as independent registered public accounting firm at the 2024-05-09 meeting.

“The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 312,867,822 16,915,516 264,822 — Item 4 . The vote on the election of certain individuals as Designated Company Directors of certain of ACGL’s non-U.S.”

ARCH CAPITAL GROUP LTD. shareholders approved Advisory vote to approve named executive officer compensation at the 2024-05-09 meeting.

“The vote on a proposal on advisory vote to approve named executive officer compensation. The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 302,727,463 14,750,962 388,895 12,180,840 Item 3 .”

ARCH CAPITAL GROUP LTD. shareholders approved Election of two Class II directors at the 2024-05-09 meeting.

“NOMINEE FOR AGAINST WITHHELD BROKER NON-VOTES Laurie S. Goodman 303,718,963 13,809,445 338,912 12,180,840 John M. Pasquesi 291,023,171 25,426,615 1,417,534 12,180,840”

ARCH CAPITAL GROUP LTD. reported financial results for the quarter ended March 31, 2024.

“On April 29, 2024, Arch Capital Group Ltd. issued a press release reporting its earnings and the availability of its financial supplement for the quarter ended March 31, 2024.”

Louis J. Paglia resigned as Director at ARCH CAPITAL GROUP LTD..

“Louis J. Paglia will resign from the Board effective as of the Annual Meeting.”

Eric W. Doppstadt resigned as Director at ARCH CAPITAL GROUP LTD..

“Eric W. Doppstadt will not stand for re-election as a Class II director at our 2024 annual general meeting of shareholders”

ARCH CAPITAL GROUP LTD. reported the quarter ended December 31, 2023 results: net income $2.3 billion, EPS $6.12 per share.

“Arch Capital Group Ltd. issued a press release reporting its earnings and the availability of its financial supplement for the quarter ended December 31, 2023.”

Thomas R. Watjen resigned as director at ARCH CAPITAL GROUP LTD..

“Arch Capital Group Ltd. (the “Company”) director, Thomas R. Watjen, has informed the Company of his decision to resign from the Company’s Board of Directors, effective December 31, 2023.”

ARCH CAPITAL GROUP LTD. amended Amendment No. 3 and Joinder to Letter of Credit Facility Agreement with Lloyds Bank Corporate Markets plc valued at $530 million (effective 2023-10-25).

“On October 25, 2023, Arch Reinsurance Ltd. (“ArchRe”), a wholly-owned subsidiary of Arch Capital Group, Ltd. (“Arch”), entered into Amendment No. 3 and Joinder to Letter of Credit Facility Agreement ( “Amendment No. 3”), as the borrower with Lloyds Bank Corporate Markets plc (“Lloyds”), as Administrative Agent and L/C Agent, which amends the Letter of Credit Facility Agreement, dated as of November 3, 2020, as amended by Amendment No. 1 to Letter of Credit Facility Agreement dated as of October 29, 2021 and as further amended by Amendment No. 2 and Joinder to Letter of Credit Facility Agreement dated as of October 27, 2022 (the “ Existing L/C Agreement”). The Existing L/C Agreement, as amended by Amendment No. 3 (the “Amended L/C Agreement”), provides for a $530 million facility for letters of credit in respect of Funds at Lloyds (the “FAL L/C Facility”).”

ARCH CAPITAL GROUP LTD. reported the quarter ended September 30, 2023 results: net income $713 million, EPS $1.88 per share.

“Net income available to Arch common shareholders of $713 million, or $1.88 per share, a 20.2% annualized net income return on average common equity”

ARCH CAPITAL GROUP LTD. incurred credit facility of $175 million with Lloyds Bank Corporate Markets plc maturing September 27, 2025.

“The L/C Agreement provides for a $175 million facility for letters of credit (the “L/C Facility”). The commitments under the L/C Agreement will expire on September 27, 2025.”

ARCH CAPITAL GROUP LTD. entered into Letter of Credit Facility Agreement with Lloyds Bank Corporate Markets plc valued at $175 million (effective 2023-09-27).

“On September 27, 2023, Arch Reinsurance Ltd. (“ArchRe”), a wholly-owned subsidiary of Arch Capital Group, Ltd. (“Arch”), entered into a Letter of Credit Facility Agreement (the “L/C Agreement”), as the borrower with Lloyds Bank Corporate Markets plc (“Lloyds”), as L/C Issuer (“L/C Issuer”).”

ARCH CAPITAL GROUP LTD. amended Fourth Amended and Restated Credit Agreement with Bank of America, N.A., as Administrative Agent, L/C Administrator and a Fronting Bank, and the lenders party thereto valued at $425 million secured facility for letters of credit (the “Tranche A Facility”) and a $500 million un (effective 2023-08-23).

“On August 23, 2023, Arch Capital Group Ltd. (“ACGL”) and certain of its subsidiaries (such subsidiaries designated as co-borrowers are referred to as “Designated Subsidiary Borrowers” and, together with ACGL, the “Borrowers”), entered into a Fourth Amended and Restated Credit Agreement (the “Credit Agreement”) with Bank of America, N.A., as Administrative Agent, L/C Administrator and a Fronting Bank, and the lenders party thereto.”

ARCH CAPITAL GROUP LTD. reported the quarter ended June 30, 2023 results: net income $661 million, EPS $1.75 per share.

“On July 26, 2023, Arch Capital Group Ltd. issued a press release reporting its earnings and the availability of its financial supplement for the quarter ended June 30, 2023.”

ARCH CAPITAL GROUP LTD. shareholders approved Election of certain individuals as Designated Company Directors of certain non-U.S. subsidiaries. at the 2023-05-04 meeting.

“Item 6 . The vote on the election of certain individuals as Designated Company Directors of certain of ACGL’s non-U.S. subsidiaries. The voting results were as follows: DIRECTOR FOR AGAINST WITHHOLD BROKER NON-VOTES Matthew Dragonetti 316,461,698 85,569 205,632 9,856,352 Seamus Fearon 316,424,289 121,252 207,358 9,856,352 Beau H. Franklin 315,636,074 883,453 233,372 9,856,352 Jerome Halgan 316,388,331 159,756 204,812 9,856,352 James Haney 316,492,079 61,054 199,766 9,856,352 Chris Hovey 316,452,684 96,363 203,852 9,856,352 Pierre Jal 316,455,279 96,858 200,762 9,856,352 François Morin 298,983,682 17,592,808 176,409 9,856,352 David J. Mulholland 316,489,134 67,835 195,930 9,856,352 Chiara Nannini 295,921,853 20,624,503 206,543 9,856,352 Maamoun Rajeh 316,494,241 75,120 183,538 9,856,352 Christine Todd 316,503,231 57,143 192,525 9,856,352”

ARCH CAPITAL GROUP LTD. shareholders approved Ratification of selection of PricewaterhouseCoopers LLP as independent registered public accounting firm for 2023. at the 2023-05-04 meeting.

“Item 5 . The vote on the ratification of the selection of PricewaterhouseCoopers LLP as ACGL’s independent registered public accounting firm for the year ending December 31, 2023. The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 315,616,209 10,876,150 116,892 —”

ARCH CAPITAL GROUP LTD. shareholders approved Approve Amended and Restated Arch Capital Group Ltd. 2007 Employee Share Purchase Plan. at the 2023-05-04 meeting.

“Item 4. The vote on a proposal to approve the Amended and Restated Arch Capital Group Ltd. 2007 Employee Share Purchase Plan. The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 316,344,285 282,835 125,779 9,856,352”

ARCH CAPITAL GROUP LTD. shareholders approved Advisory vote of preferred frequency for advisory vote on named executive officer compensation. at the 2023-05-04 meeting.

“Item 3 . The vote on a proposal on advisory vote of preferred frequency for advisory vote on named executive officer compensation.The voting results were as follows: 1 YEAR 2 YEARS 3 YEARS ABSTAIN 312,697,512 319,929 3,586,599 148,859”

ARCH CAPITAL GROUP LTD. shareholders approved Advisory vote to approve named executive officer compensation. at the 2023-05-04 meeting.

“Item 2 . The vote on a proposal on advisory vote to approve named executive officer compensation. The voting results were as follows: FOR AGAINST ABSTAIN BROKER NON-VOTES 297,263,015 19,296,230 193,654 9,856,352”

ARCH CAPITAL GROUP LTD. shareholders approved Election of five Class I directors to hold office for a term of three years. at the 2023-05-04 meeting.

“ITEM 5.07 Submission of Matters to a Vote of Security Holders . Arch Capital Group Ltd.'s ("ACGL") annual meeting of shareholders was held on May 4, 2023. At the meeting, the holders of 326,609,251 common shares, which represents approximately 88 percent of the outstanding shares entitled to vote as of the record date of March 7, 2023, were represented in person or by proxy. Matters submitted to shareholders at the meeting and the voting results thereof were as follows: Item 1. The vote on the election of the five Class I directors to hold office for a term of three years and until their respective successors are duly elected and qualified or their earlier resignation or removal.The voting results were as follows: NOMINEE FOR AGAINST WITHHELD BROKER NON-VOTES Francis Ebong 280,794,829 35,793,616 164,454 9,856,352 Eileen Mallesch 304,293,583 12,310,583 148,733 9,856,352 Louis J. Paglia 299,919,845 16,678,891 154,163 9,856,352 Brian S. Posner 296,651,352 19,940,542 161,005 9,856,352 John”

ARCH CAPITAL GROUP LTD. reported the quarter ended March 31, 2023 results: net income $705 million, EPS $1.87 per share.

“Arch Capital Group Ltd. (NASDAQ: ACGL; “Arch” or “the Company”) announces its 2023 first quarter results. The results included: • Net income available to Arch common shareholders of $705 million, or $1.87 per share”

ARCH CAPITAL GROUP LTD. reported the quarter ended December 31, 2022 results: revenue Net premiums earned 2,760,919, net income $849.5 million, EPS $2.26 per share.

“Three Months Ended December 31, 2022 2021 % Change Gross premiums written $ 3,795,262 $ 2,861,575 32.6 Net premiums written 3,034,636 2,034,427 49.2 Net premiums earned 2,760,919 2,083,630 32.5 Underwriting income 734,264 471,611 55.7 Underwriting Ratios % Point Change Loss ratio 45.0 % 47.8 % (2.8) Underwriting expense ratio 28.5 % 29.8 % (1.3) Combined”

Eileen Mallesch was appointed as Director at ARCH CAPITAL GROUP LTD..

“On August 16, 2021, Arch Capital Group Ltd. (“ACGL”) announced that Francis Ebong and Eileen Mallesch will be appointed to ACGL's Board of Directors (“Board”), effective August 16, 2021.”

Francis Ebong was appointed as Director at ARCH CAPITAL GROUP LTD..

“On August 16, 2021, Arch Capital Group Ltd. (“ACGL”) announced that Francis Ebong and Eileen Mallesch will be appointed to ACGL's Board of Directors (“Board”), effective August 16, 2021.”