Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-41755 WK Kellogg Co State or other jurisdiction of incorporation or organization— Delaware IRS Employer Identi ...

Exhibit 99.1 WK Kellogg Co Financial News Release Analyst Contact: Karen Duke (269) 401-3164 Matt Harrison (269) 401-3326 Media Contact: Stacy Flathau (269) 401-3002 WK Kellogg Co Announces First Quarter Financial Results; Company Reaffirms 2024 Guidance BATTLE CREEK, Mich. - May 7, 2024 - WK Kellogg Co (NYSE: KLG), a leading manufacturer, marketer and distributor of branded ready-to-eat cereal in the U.S., Canada, and Caribbean, today reported financial results for its first quarter ended March 30, 2024. F ...

BATTLE CREEK, Mich., May 2, 2024 /PRNewswire/ -- WK Kellogg Co (NYSE: KLG) today announced that its Board of Directors declared a dividend of $0.16 per share on the common stock of WK Kellogg Co, payable on June 14, 2024, to shareowners of record at the close of business on May 31, 2024. The ex-dividend date is May 31, 2024. About WK Kellogg Co At WK Kellogg Co, we bring our best to everyone, every day through our trusted foods and brands. Our journey began in 1894, when our founder W.K. Kellogg reimagined ...

BATTLE CREEK, Mich., April 18, 2024 /PRNewswire/ -- WK Kellogg Co (NYSE: KLG) announced today that it will host a conference call on Tuesday, May 7, 2024, at 9:30 a.m. EDT, to discuss the company's financial results for the first quarter of 2024 and provide an operational update, including indications regarding the performance and outlook of the business. The conference call will be a live audio webcast available at investor.wkkellogg.com. At approximately 8:00 a.m. EDT on that day the company will release ...

BATTLE CREEK, Mich., April 17, 2024 /PRNewswire/ -- WK Kellogg Co (NYSE: KLG) will host a live virtual webcast of its 2024 Annual Shareholder Meeting on Thursday, May 2, 2024, at 1:00 PM ET. Information about the webcast, which will include both the audio and slide presentation from the meeting, is available on the Investor Relations page of our website at investor.wkkellogg.com. Only Shareholders will be permitted to participate. A rebroadcast will be available 24 hours after the meeting, and up for at lea ...

Spin-Off and Corporate Structure - The Spin-Off of WK Kellogg Co from Kellanova was completed on October 2, 2023, with Kellanova distributing one share of WK Kellogg Co common stock for every four shares of Kellanova common stock[17]. - Kellanova's North America cereal business was separated and spun off into WK Kellogg Co, with the distribution of one share of WK Kellogg Co common stock for every four shares of Kellanova common stock on October 2, 2023[17]. - WK Kellogg Co entered into several agreements with Kellanova, including a Transition Services Agreement to ensure an orderly transition post-Spin Off[19]. Product Portfolio and Market Position - WK Kellogg Co's principal products include cereals categorized into taste, wellness, and balance, with leading brands such as Frosted Flakes, Special K, and Froot Loops[20]. - The company has a diverse portfolio of cereals aimed at enhancing consumer lives, supported by over a century of institutional knowledge[16]. - The company has a significant market position in the North American cereal industry, supported by a diversified portfolio of iconic brands[32]. - The company has a diversified portfolio of cereals across taste, wellness, and balance sub-categories, appealing to a wide demographic[16]. Supply Chain and Raw Materials - The company has experienced supply chain disruptions leading to increased prices of raw materials, packaging, and labor, impacting profitability[22]. - The company relies on agricultural commodities such as corn, wheat, and sugar as principal raw materials, which are subject to price fluctuations due to various market conditions[21]. - The principal raw materials include agricultural commodities such as corn, wheat, and sugar, with costs subject to fluctuations due to various external factors[21]. - The company utilizes derivative financial instruments to hedge against commodity price risks[22]. Competition and Market Dynamics - The company faces intense competition from both branded and private label products, competing on factors such as product quality, price, and innovation[32]. - The company faces intense competition from both branded and private label products, necessitating continuous innovation and marketing efforts[32]. - WK Kellogg Co's future results may be affected by factors such as supply chain disruptions, inflation, and competition in the retail environment[14]. Financial Performance and Customer Base - In 2023, Wal-Mart Stores, Inc. accounted for approximately 26% of combined net sales, with the top five customers collectively representing about 47% of net sales[30]. - Kellanova's largest customer, Wal-Mart Stores, Inc., accounted for approximately 26% of combined net sales during 2023, with the top five customers collectively representing about 47% of net sales[30]. Research and Development - Research and development expenditures for the year ended December 30, 2023, were approximately $25 million[33]. - The company is actively involved in research to expand existing products and develop new food products at the W. K. Kellogg Institute for Food and Nutrition Research[33]. Employee Engagement and Corporate Culture - The company employs approximately 3,150 employees as of December 30, 2023, and focuses on employee engagement and well-being[38]. - The company emphasizes employee engagement through frequent communication and a global opinion survey[38]. - The company offers a competitive benefits package that includes defined benefit pension plans and defined contribution retirement plans[38]. - The company is committed to evolving its programs to meet the total well-being needs of its employees[38]. - The company provides flexible work arrangements to promote work/life integration[38]. - The company is committed to fostering a culture of equity, diversity, inclusion, and belonging in the workplace[38]. - The company invests in training and development programs for leadership and technical capabilities[38]. Management Team - The Chief Executive Officer and Chairman of the Board is Gary Pilnick, appointed effective upon the completion of the Spin-Off[40]. - The Chief Financial Officer is David McKinstray, who has significant experience in global roles across risk management and corporate financial planning[45]. - The Chief Growth Officer is Doug VanDeVelde, who has held various leadership roles in marketing for over 25 years[46]. Regulatory and Compliance Matters - There are no current regulatory matters expected to materially impact the company's financial performance, although future regulations could pose risks[35]. - The company maintains internal controls to mitigate the risk of non-compliance with various regulations[34].

• Grow EBITDA Our Margin Opportunity Opportunity to leverage low-cost platforms and processes Significant cost and efficiency disparity within the current network FACTORY EXPENSE PER KILO HIGHEST COST FACILITY ~50%2 ~20%2 LOWEST COST FACILITY LEAST EFFICIENT FACILITY MOST EFFICIENT FACILITY | 49 1) As measured by Overall Equipment Effectiveness (OEE) 2) These are management estimates OPERATING EFFICIENCY1 Modernizing our Supply Chain | 50 • Automation • Digital Capabilities • New Manufacturing Technology | ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to | Title of each class | Trading symbol(s) | Name of ...