Selective Insurance Group, Inc., today announced the planned retirement of Vincent Senia, Executive Vice President, Chief Actuary, effective January 2026. Mr. Senia has held the position since 2017 and has been instrumental in shaping Selective’s actuarial reserving, pricing, and planning strategies, as well as enhancing its data analytics capabilities.

Mr. Senia joined Selective in 2010 as Senior Vice President, Actuarial Reserving, and he is a member of the American Academy of Actuaries and a Fellow of the Casualty Actuarial Society.

“Working alongside such talented individuals at Selective has been an incredible journey. I am proud of all we have accomplished together,” said Vincent Senia. “As I transition into retirement, I am confident that Selective will continue to thrive and deliver exceptional value to our customers and stakeholders.”

John J. Marchioni, Chairman, President, and CEO of Selective, stated, “Vin is leaving a lasting legacy at Selective. His insights and leadership have been deeply valued, and we wish him all the best in his exciting next chapter.”

Selective Insurance also announced that Nathan Rugge, Senior Vice President, Chief Corporate Actuary, Reserving, will assume the role of Executive Vice President, Chief Actuary upon Mr. Senia’s retirement. Mr. Rugge joined Selective in 2009 and has played a key role in the company’s pricing and reserving strategies. He has held various Actuarial roles of increasing responsibility, including Assistant Vice President, Personal Lines Pricing, and Senior Vice President, Actuarial Reserving. Mr. Rugge holds a bachelor’s degree in Actuarial Science and Finance from Rider University in New Jersey and a master’s degree in Analytics from Georgia Tech. He is a Fellow of the Casualty Actuarial Society and a member of the American Academy of Actuaries.

About Selective Insurance Group, Inc.

Selective Insurance Group, Inc. (Nasdaq: SIGI) is a holding company for 10 property and casualty insurance companies rated "A+" (Superior) by AM Best. Through independent agents, the insurance companies offer standard insurance for commercial and personal risks and specialty insurance for commercial risks. Selective also offers flood insurance through the National Flood Insurance Program's Write Your Own Program. Selective's unique position as both a leading insurance group and employer of choice is widely recognized, with awards and honors including listing in Forbes Best Midsize Employers and certification for six consecutive years as a Great Place to Work^®.

Forward-Looking Statements

Certain statements in this report, including information incorporated by reference, are “forward-looking statements” defined in the Private Securities Litigation Reform Act of 1995 ("PSLRA"). The PSLRA provides a forward-looking statement safe harbor under the Securities Act of 1933 and the Securities Exchange Act of 1934. These statements discuss our intentions, beliefs, projections, estimations, or forecasts of future events and financial performance. They involve uncertainties and known and unknown risks and other factors that may cause actual results, activity levels, or performance to materially differ from those in or implied by the forward-looking statements. In some cases, forward-looking statements include the words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “attribute,” “confident,” “strong,” “target,” “project,” “intend,” “believe,” “estimate,” “predict,” “potential,” “pro forma,” “seek,” “likely,” “continue,” or comparable terms. Our forward-looking statements are only predictions; we cannot guarantee or assure that such expectations will prove correct. We undertake no obligation to publicly update or revise any forward-looking statements for any reason, except as may be required by law.

Factors that could cause our actual results to differ materially from what we project, forecast, or estimate in forward-looking statements include, without limitation:

• Challenging conditions in the economy, global capital markets, the banking sector, and commercial real estate, including prolonged higher inflation, could increase loss costs and negatively impact investment portfolios;
• Deterioration in the public debt, public equity, or private investment markets that could lead to investment losses and interest rate fluctuations;
• Ratings downgrades on individual securities we own could negatively affect investment values, impacting statutory surplus;
• The development and adequacy of our loss reserves and loss expense reserves;
• Frequency and severity of catastrophic events, including natural events that climate change may impact, such as hurricanes, severe convective storms, tornadoes, windstorms, earthquakes, hail, severe winter weather, floods, and fires, and man-made events such as criminal and terrorist acts, including cyber-attacks, explosions, and civil unrest;
• Adverse market, governmental, regulatory, legal, political, or judicial rulings, conditions or actions, including the impact of social inflation and the impact of a continued shutdown of the U.S. government;
• The significant geographic concentration of our business in the eastern portion of the United States;
• The cost, terms and conditions, and availability of reinsurance;
• Our ability to collect on reinsurance and the solvency of our reinsurers;
• The impact of changes in U.S. trade policies and imposition of tariffs on imports that may lead to higher than anticipated inflationary trends for our loss and loss expenses;
• Ongoing wars and conflicts impacting global economic, banking, commodity, and financial markets, exacerbating ongoing economic challenges, including inflation and supply chain disruption, all of which can influence insurance loss costs, premiums, and investment valuations;
• Uncertainties related to insurance premium rate increases and business retention;
• Changes in insurance regulations that impact our ability to write and/or cease writing insurance policies in one or more states;
• The effects of data privacy or cyber security laws and regulations on our operations;
• Major defect or failure in our internal controls or information technology and application systems that result in marketplace brand damage, increased senior executive focus on crisis and reputational management issues, and/or increased expenses, particularly if we experience a significant privacy breach;
• Potential tax or federal financial regulatory reform provisions that could pose certain risks to our operations;
• Our ability to maintain favorable financial ratings, which may include sustainability considerations, from rating agencies, including AM Best, Standard & Poor’s, Moody’s, and Fitch;
• Our entry into new markets and businesses; and
• Other risks and uncertainties we identify in filings with the United States Securities and Exchange Commission, including our Annual Report on Form 10-K and other periodic reports.

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