Breakfast Cereal Manufacturing (United States)

NAICS 2022 code 311230

An investor's primer for public- and private-market audiences.

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1. Overview

Breakfast cereal manufacturing is the business of turning cheap grain — corn, wheat, oats, rice — into branded boxes that sell for many times their raw-material cost. It is one of the oldest and most concentrated packaged-food categories in the United States: a handful of companies control roughly nine of every ten dollars of factory shipments [1].

Why an investor should care: cereal is a mature, high-margin, slowly declining category. It throws off dependable cash but faces a structural headwind — Americans eat less cereal every year as the breakfast bowl loses ground to yogurt, protein bars, eggs, smoothies, drive-thrus and coffee-shop breakfasts [2]. That combination — good margins, weak volume growth — makes it a "cash cow" business where owners compete on cost discipline, brand strength and pricing rather than expansion.

Ways in. For public-market investors, there is no longer a pure-play U.S. cereal stock: the two closest proxies, General Mills and Post Holdings, are diversified food companies for which cereal is one segment among many. The one dedicated listed cereal company, WK Kellogg Co, was taken private by Italy's Ferrero in 2025 [3]. For private-market investors, the action is in strategic acquisitions (Ferrero, Mars), private-label / contract manufacturing, and a fringe of venture-backed "better-for-you" cereal startups. Details in Sections 4 and 10.

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2. What it is and how it's structured

Scope. NAICS 311230 covers establishments that manufacture ready-to-eat (RTE) cereal (Cheerios, Frosted Flakes, Raisin Bran) and hot cereal / cereal that requires cooking (oatmeal, farina, grits, cream of wheat). It includes granola and muesli made in a cereal plant.

What it excludes — important, because "cereal" is a fuzzy word:

• Granola and snack bars made as bars → Snack Food Manufacturing (NAICS 311340 for non-chocolate-coated bars; chocolate-coated bars fall under confectionery classifications) [4].
• Flour milling and rice milling (the upstream grain processing) → NAICS 311211 (flour), 311212 (rice), 311213 (malt).
• Cereal-based baby food → Dry, Condensed, and Evaporated Dairy / other food codes.
• Toaster pastries and other grain snacks (e.g., Pop-Tarts) → cookie/cracker or snack codes, not 311230.
• Retailing the boxes → NAICS 445 (grocery). The federal cereal-manufacturing figures below are factory shipments, not retail sales.

Manufacturing process. Grain is cleaned and milled or mixed with purchased flour; cooked under pressure or extruded; shaped by flaking, puffing, shredding or extrusion; dried or toasted; and then coated, flavored or fortified before automated packaging. Hot cereals require fewer shaping and coating steps but share grain handling, blending and packing infrastructure. Plants are designed around specific processing "platforms," making utilization and product mix important; changeovers, sanitation, maintenance outages and SKU complexity reduce effective capacity [5].

Ownership mix. Unlike restaurants or farming, this is not a fragmented industry of small operators. It is dominated by a few large, capital-intensive corporations running highly automated plants. The Census counts just 77 firms operating 102 establishments nationally [1]. Ownership today is a mix of:

• U.S.-listed diversified food companies (General Mills, Post Holdings, PepsiCo/Quaker);
• foreign-owned private groups (Ferrero, which now owns the former Kellogg U.S. cereal business; Mars, which owns Kellogg's international cereal via Kellanova);
• private-label / contract manufacturers that make store-brand cereal for retailers (Post's Malt-O-Meal operation is the largest); and
• a long tail of small private and venture-backed brands (natural/organic and high-protein startups).

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3. How big it is

Federal statistics capture this industry cleanly — because it is small in headcount and concentrated in a few large firms, there is little of the "undercount" problem that plagues industries dominated by tiny or informal operators.

What the numbers say. Average pay works out to roughly $75,000 per worker [7]. More striking is the productivity: about $828,000 of shipments per employee ($10.98B ÷ 13,258). That is the signature of a capital-intensive, automated business — continuous extrusion, cooking, drying and packaging lines run by relatively few people. It is a factory business, not a labor business.

Concentration. The industry is highly consolidated:

• CR4 (share of shipments held by the top 4 firms): 86.6% [1]
• CR8: 93.3% [1]
• CR20: 99.3% [1]
• Herfindahl-Hirschman Index (HHI): 2,539 [1] — above the 2,500 line the U.S. antitrust agencies treat as "highly concentrated."

This concentration is structural rather than a recent development: historical Census-based research found that the four largest firms accounted for 80.4% of 2007 shipments, with an HHI of 2,425 [9].

Factory shipments vs. the "retail market." Market-research firms cite a U.S. breakfast-cereal retail market of roughly $18–19 billion for 2026 and growing low single digits [10]. That is larger than the $10.98B federal shipments figure because retail value includes grocers' markup, imports and food-service, whereas the Census counts what leaves the factory. Treat the retail figure as a private estimate; treat the $10.98B as authoritative.

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4. The investable universe

There is no remaining pure-play U.S. cereal stock. After the 2023–2025 reshuffle (Section 8), the surviving public routes are diversified food companies where cereal is a minority of revenue.

Private and other owners. Beyond the strategics, ownership includes Ferrero (privately held, now the #1 or #2 U.S. RTE brand portfolio via WK Kellogg) [3]; private-label / store-brand manufacturing that now supplies roughly 9% of U.S. cereal volume, up from ~5–6% a few years ago [11]; and a fringe of private / venture-backed better-for-you brands (e.g., Magic Spoon, Three Wishes, Catalina Crunch on the high-protein/low-sugar end; Nature's Path and similar on the organic end). None of these are independently listed.

Bottom line for stock pickers: GIS and POST are the practical U.S. proxies; both must be underwritten as diversified staples, not cereal bets. PEP and Nestlé give only incidental exposure.

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5. How the money works

Cereal is a textbook branded-manufacturing business. Owners make money on the spread between low input cost and brand-supported shelf price, multiplied by volume and protected by scale.

The revenue equation. Sales = volume (pounds or cases) × price/mix. Because volumes are flat-to-declining, most reported growth in recent years has come from price/mix (list-price increases and selling more premium items), not from selling more boxes. Investors watch two share numbers: pound (volume) share and dollar (value) share — a company can gain pound share by discounting while losing dollar share, or vice versa [15]. The trade-off is real: WK Kellogg's 2024 tonnage fell 6.4% while price/mix added 4.4%; management explicitly attributed the volume decline to price elasticity [5].

Gross margin and input costs. The raw grain in a box of cereal is cheap; the value is in the brand, the processing and the marketing. Cost of goods is driven by:

• Commodities — corn, wheat, oats, rice, sugar, vegetable oils, cocoa, fruit and nuts [5];
• Energy — natural gas, propane and electricity (cooking/drying is energy-hungry);
• Packaging — cartonboard, corrugate and flexible film [5]; and
• Freight (bulky, low-density boxes are expensive to ship).

Because commodity cost per box is small relative to price, cereal historically earns high gross margins (often 30–40%+) and is one of the more profitable aisles in the grocery store. The former WK Kellogg — essentially a North American cereal pure play — reported a 29.3% gross margin in 2024, up from 27.3% in 2023 [5]. Yet SG&A consumed 23% of sales, illustrating how brand support and corporate overhead eat into that manufacturing margin [5].

Operating leverage. Plants are expensive and run continuously, so capacity utilization matters: when volumes fall, fixed costs are spread over fewer boxes and margins compress. This is why the majors emphasize "productivity" (cost-out) programs and, when volumes sag, close or consolidate lines. WK Kellogg disclosed plans to spend up to $500 million modernizing its supply chain — comprising up to $390 million of capital expenditures and $110 million of restructuring costs — including closing its Omaha plant and reducing platforms in Memphis [5].

Marketing intensity. Cereal is one of the most heavily advertised food categories; sustained ad and trade-promotion spend is the cost of defending shelf space and brand equity. Cutting it boosts near-term margin but risks share.

Private label vs. brand. Store brands earn thinner margins but absorb factory capacity and grow when shoppers trade down. Post deliberately plays both sides — premium brands and the largest private-label operation — to capture value across price tiers and smooth volume [12].

Retailer power. A few large grocers dictate shelf space, promotion and terms. WK Kellogg disclosed that Walmart represented approximately 29% of its 2024 sales and its five largest customers collectively represented 52% [5]. General Mills reported that Walmart represented 22% of consolidated fiscal-2025 sales and 31% of North America Retail sales [16]. DOJ research identifies breakfast cereal as a category in which slotting arrangements have historically been used, underscoring the economic importance of retail access [17].

What owners do with the cash. Public holders (GIS, POST, PEP) convert the category's steady free cash flow into dividends and buybacks (General Mills is a long-standing dividend payer) and into acquisitions in faster-growing adjacencies (Post has pushed into pet food and eggs). Private strategic owners (Ferrero, Mars) monetize cereal differently — as scale, distribution reach and cross-selling into their broader confectionery/snack portfolios rather than as a standalone dividend stream.

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6. What drives demand

• The breakfast occasion is contested. Cereal competes with yogurt, eggs, breakfast sandwiches, bars, smoothies, oatmeal cups and away-from-home breakfast. U.S. cereal volumes fell from about 2.1 million tonnes in 2008 to 1.6 million in 2023 — a long, steady erosion as eating habits shift toward on-the-go and higher-protein options [2]. Scanner data tell a similar story: U.S. consumers bought nearly 2.5 billion boxes in the 52 weeks ended July 2021 versus 2.1 billion in the comparable 2025 period, a decline of more than 13% [18].
• Health and diet trends. Sugar, "ultra-processed" stigma and artificial dyes weigh on the traditional kid-cereal segment, while protein and fiber are the growth vectors. USDA describes breakfast cereals as a dynamic reformulation category with hundreds of new whole-grain products introduced yearly [19]. The rapid spread of GLP-1 weight-loss drugs (Ozempic-class) is a fresh headwind: users eat smaller portions and skew toward protein and produce, and breakfast has been among the harder-hit occasions [20][21]. The flip side is opportunity for high-protein/functional cereal formats.
• Value and the economy. Cereal is price-sensitive; grocery inflation pushes shoppers toward private label, which has taken share during recent inflation [11]. Cereal is SNAP-eligible, so nutrition-assistance policy affects volume among lower-income households. USDA describes ready-to-eat cereal demand as own-price inelastic at the category level, but brand- and package-level elasticity can be meaningful after large pricing actions [19].
• At-home eating. Cereal is an at-home food, so it benefits when people eat breakfast at home (it spiked during 2020 lockdowns) and suffers as routines return to commuting and office life.
• Demographics and nostalgia. Households with children drive sweetened cereals; aging, smaller households favor adult "health" cereals. Nostalgia, licensed characters and limited editions remain reliable short-term sales levers. Younger consumers nevertheless use cereal as a snack or at other dayparts, so the category is not solely tied to breakfast frequency.

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7. Regulation

Cereal is regulated primarily as a packaged food by the U.S. Food and Drug Administration (FDA), with several currently active pressure points:

• Labeling. FDA's Nutrition Facts rules govern the panel, including the Added Sugars line, and constrain claims. Cereal makers rely on regulated health claims (e.g., soluble-fiber/whole-grain "heart health" claims) and on fortification (added vitamins/minerals — "enriched"/"fortified"). FDA's updated "healthy" nutrient-content claim requires cereal using that term to contain a qualifying amount of whole grains and remain within limits for saturated fat, sodium and added sugar [22].
• Front-of-package labeling. FDA has proposed a front-of-package box identifying saturated fat, sodium and added sugar as low, medium or high. As of the most recent regulatory filing, this remained a proposal; FDA estimated annualized relabeling costs of $66–154 million and potential reformulation costs of $125–377 million across the entire packaged-food industry — not cereal alone [23].
• Artificial dyes. The FDA revoked authorization for Red No. 3 in foods effective January 15, 2027, and is pressing industry to phase out the remaining petroleum-based synthetic dyes (Red 40, Yellow 5/6, Blue 1, etc.) [24]. Brightly colored cereals are directly in scope; major makers (including WK Kellogg) have pledged reformulation, and some retailers (Target) began pulling dyed cereals from shelves in 2025 [25].
• "MAHA" scrutiny. The federal Make America Healthy Again initiative, led by the HHS secretary, has singled out sugary, dyed cereals (Froot Loops became a flashpoint) and is pressing on added sugar, ultra-processed foods and front-of-pack labeling — a policy overhang for the sweetened-cereal segment [26][25].
• Nutrition-assistance rules. WIC already limits the sugar content of eligible cereals; proposals periodically surface to tighten SNAP eligibility for sugary foods, which would matter for volume.
• Advertising to children. Marketing to kids is governed by FTC oversight and industry self-regulation (the Children's Food and Beverage Advertising Initiative).
• Food safety. Plants operate under the Food Safety Modernization Act (FSMA) and allergen-labeling rules; periodic recalls (salmonella, listeria, foreign material) are an operational and reputational risk. Quaker's 2023–24 Salmonella recall, which covered cereals, bars and snacks, illustrates the scope of such events [27].

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8. Competitive dynamics and consolidation

The last three years rewrote the industry's ownership map — a rare burst of activity in an otherwise sleepy category:

1. Kellogg split (October 2023). The Kellogg Company separated into Kellanova (global snacks + international cereal; ticker K) and WK Kellogg Co (the North American cereal business; ticker KLG), spun off one-for-four to shareholders [28]. This created, briefly, the only listed pure-play U.S. cereal company.
2. Ferrero buys WK Kellogg (2025). Italy's privately held Ferrero agreed in July 2025 to acquire WK Kellogg for $3.1 billion ($23.00/share, a ~40% premium), and completed the deal in September 2025 — taking the Frosted Flakes/Froot Loops/Special K portfolio private [3][29].
3. Mars buys Kellanova (2025). Confectionery giant Mars completed its ~$36 billion acquisition of Kellanova in December 2025, folding Kellogg's international cereal and its snack brands into a private snacking behemoth [14][30].

The competitive structure that results: a stable oligopoly — General Mills (largest U.S. RTE maker), the Ferrero/WK Kellogg portfolio, and Post — plus PepsiCo's Quaker on the margin, all fighting a growing private-label challenger for a shrinking pie [11]. Competition runs on brand strength, price/promotion, innovation ("renovation" of existing brands with protein or reduced sugar), and cost productivity — not on capacity expansion. Retailer buyer power (especially Walmart) is a persistent squeeze, since a few chains control most volume.

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9. Risks

• Secular volume decline. The core risk: fewer people eat cereal each year, and pricing can only offset falling volumes for so long [2][18].
• Health / regulatory pressure. Sugar, dyes and the ultra-processed-food backlash — amplified by MAHA and FDA action — threaten the most profitable (sweetened) segment and impose reformulation costs and taste risk [25][26].
• GLP-1 demand shock. Appetite-suppressing weight-loss drugs cut portion sizes and shift spending toward protein and produce, with breakfast among the exposed occasions [20][21].
• Private-label share gains / trade-down. Store brands keep taking share, pressuring branded volume and price [11].
• Input-cost volatility. Grain, sugar, energy, packaging and freight swings hit margins in a category where pushing price too hard accelerates trade-down. WK Kellogg used fixed-price contracts and derivatives but warned that hedging could lag or exceed spot prices [5].
• Retailer concentration. A few large grocers dictate shelf space, promotion and terms; Walmart alone accounts for 22–31% of major cereal makers' relevant sales [5][16].
• Labor disruptions. Approximately 1,400 union employees struck Kellogg's U.S. cereal plants from October through December 2021, disrupting supply into 2022 and forcing suspension of capital projects [5]. Automation reduces direct labor intensity but raises dependence on skilled maintenance and controls technicians.
• Execution / reformulation. Removing dyes and sugar without losing loyal buyers is genuinely hard; recalls and food-safety events carry reputational cost.
• Stranded capacity. A declining category raises the risk that plants become underutilized; closing a plant can improve utilization but creates large restructuring costs and execution risk.
• For diversified owners, cereal's decline can be masked by other segments — a reason to read segment disclosures rather than headline results.

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10. How to invest, and the outlook

Public-market routes.

• General Mills (GIS) and Post Holdings (POST) are the two practical U.S. cereal proxies — but both are diversified packaged-food companies, so you are buying a broad staples business with cereal inside, not a cereal pure-play. POST provides the most direct listed exposure to both branded and private-label ready-to-eat cereal, though its disclosed Consumer Brands segment also includes pet food, nut butter, granola and pasta [12]. Investors typically value them as defensive, cash-generative consumer-staples names on earnings/free-cash-flow multiples and, for General Mills, dividend yield; both trade at packaged-food multiples that reflect low growth. (Do your own valuation work at time of purchase.)
• PepsiCo (PEP) offers only incidental cereal exposure via Quaker; Nestlé (NSRGY/NESN) exposes you to international cereal via its JV, not the U.S. market.
• Note the key structural fact: the pure-play option disappeared when WK Kellogg went private in 2025 [3]. There is currently no way to own U.S. cereal alone on a public exchange.

Private-market routes.

• Most consolidation here is strategic, not private-equity — Ferrero and Mars bought scale, not a flip [3][14]. Financial sponsors have historically found cereal's declining volumes unattractive for leveraged growth.
• The more accessible private angles are private-label / contract manufacturing (supplying store brands — steadier volume, thinner margin) and venture-stage "better-for-you" brands (high-protein, low-sugar, grain-free) that target exactly the health and GLP-1 trends pressuring the incumbents. These are early-stage, higher-risk bets on the category's growth edge rather than its declining core.
• Investors in mature manufacturers should underwrite plant utilization, customer concentration, promotional liabilities, maintenance capital and the durability of shelf placement — not simply retail category sales.

Near-term drivers and outlook (forward-looking).

• Expect continued low-single-digit volume decline in traditional RTE cereal, partly offset by price/mix and by innovation in protein, fiber and reduced-sugar formats [2][10].
• Reformulation (dye removal by 2027, sugar reduction) is a near-term cost and execution swing factor, with regulatory and MAHA pressure unlikely to ease [24][26].
• GLP-1 adoption is the wild card — a headwind to portion sizes but a tailwind for whoever best captures the high-protein breakfast dollar [20][21].
• Private label should keep gaining share while shoppers stay value-focused [11].
• Further consolidation is plausible as owners chase cost synergies in a no-growth category.

The reasonable base case: cereal remains a profitable, cash-generative, slowly shrinking business — attractive for income and defensiveness, unattractive for growth — where the winners are the disciplined cost operators and the brands that successfully pivot toward protein and clean labels.

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Sources

1. U.S. Census Bureau, 2022 Economic Census — Concentration statistics and industry summary (NAICS 311230): receipts, firm count, establishments, CR4/CR8/CR20/CR50, HHI (2022). https://data.census.gov/table/ECNBASIC2022.EC2231BASIC?t=Detailed+Operating+Expenses
2. Bakery & Snacks, "Who killed the cereal bowl? Breakfast isn't what it used to be" (2025). https://www.bakeryandsnacks.com/Article/2025/04/22/cereal-sales-drop-as-on-the-go-breakfasts-take-over/
3. New Food Magazine, "Ferrero acquires WK Kellogg Co in $3.1bn deal" (2025). https://www.newfoodmagazine.com/news/253175/ferrero-acquires-wk-kellogg-cereal-brands/; WK Kellogg Co newsroom, "Ferrero to acquire WK Kellogg Co" (Jul 10, 2025). https://newsroom.wkkellogg.com/2025-07-10-FERRERO-TO-ACQUIRE-WK-KELLOGG-CO
4. U.S. Census Bureau, NAICS 311230 Profile. https://data.census.gov/profile/311230_-_Breakfast_cereal_manufacturing?codeset=naics~311230&g=010XX00US
5. WK Kellogg Co, Form 10-K, FY2024, U.S. Securities and Exchange Commission (2025). https://www.sec.gov/Archives/edgar/data/1959348/000162828025007817/klg-20241228.htm
6. U.S. Census Bureau, 2023 Annual Integrated Economic Survey (NAICS 311230). https://data.census.gov/table/AIESBASICTIMESERIES.AIES31BASIC01?tid=AIESBASICTIMESERIES.AIES31BASIC01
7. U.S. Census Bureau, County Business Patterns 2023 (NAICS 311230): establishments, employment, annual payroll, first-quarter payroll (2023). https://www.census.gov/programs-surveys/cbp.html
8. U.S. Small Business Administration, Table of Small Business Size Standards (NAICS 311230 = 1,300 employees) (2023). https://www.sba.gov/document/support-table-size-standards
9. Crespi, J. M., Saitone, T. L., & Sexton, R. J., "Competitiveness of Agricultural Product and Input Markets: A Review and Synthesis of Recent Research," Journal of Agricultural and Applied Economics (2012). https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/competitiveness-of-agricultural-product-and-input-markets-a-review-and-synthesis-of-recent-research/BD569438D8B7ABC6358F7A510CA0BE9F
10. Future Market Insights, "United States Breakfast Cereal Market" (2026). https://www.futuremarketinsights.com/reports/united-states-breakfast-cereal-market
11. Star Tribune, "General Mills' market lead in cereal eroding" (2024). https://www.startribune.com/general-mills-top-cereal-maker-honey-nut-cheerios-post-kellogg/601198485
12. Post Holdings, Inc., Fourth Quarter and Fiscal Year 2025 Results / Investor Presentation (2025). https://www.postholdings.com/post-holdings-reports-results-for-the-fourth-quarter-and-fiscal-year-2025/; https://www.postholdings.com/wp-content/uploads/2025/02/Post-Investor-Presentation-1Q25-FINAL.pdf
13. PepsiCo, Inc. — Quaker Foods North America segment disclosures (2025). https://www.pepsico.com/
14. The Shelby Report, "Mars Receives Final Approval for $36B Kellanova Acquisition" (2025). https://theshelbyreport.com/2025/12/09/mars-receives-final-approval-for-36b-kellanova-acquisition/
15. Food Business News, "General Mills sees silver lining in rough fiscal 2025" (2025). https://www.foodbusinessnews.net/articles/28529-general-mills-sees-silver-lining-in-rough-fiscal-2025
16. General Mills, Inc., Form 10-K, FY2025, U.S. Securities and Exchange Commission (2025). https://www.sec.gov/Archives/edgar/data/40704/000119312525147079/d938443d10k.htm
17. U.S. Department of Justice, "The Economics of Slotting Contracts." https://www.justice.gov/archives/atr/economics-slotting-contracts
18. Associated Press, "Americans are buying millions fewer cereal boxes than they used to" (2025). https://apnews.com/article/db705c5cbb828e31b31ac02cc4d5a886
19. U.S. Department of Agriculture Economic Research Service, "Diet Quality and Nutrition" and "Reformulating Food Products" research. https://www.ers.usda.gov/topics/food-choices-health/diet-quality-nutrition/background; https://ers.usda.gov/publications/101591
20. PwC, "GLP-1 consumer trends in food, apparel and wellness" (2025). https://www.pwc.com/us/en/industries/consumer-markets/library/glp-1-consumer-trends.html
21. Bakery & Snacks, "Protein is the baseline as GLP-1 accelerates the shift" (2026). https://www.bakeryandsnacks.com/Article/2026/02/26/how-glp-1-is-driving-demand-for-protein-in-food/
22. U.S. Food and Drug Administration, "FDA Finalizes Updated 'Healthy' Nutrient Content Claim" (2024). https://www.fda.gov/food/hfp-constituent-updates/fda-finalizes-updated-healthy-nutrient-content-claim
23. U.S. Food and Drug Administration, "Food Labeling: Front-of-Package Nutrition Information — Proposed Rule, Regulatory Impact Analysis." https://www.fda.gov/about-fda/economic-impact-analyses-fda-regulations/food-labeling-front-package-nutrition-information-proposed-rule
24. U.S. Food and Drug Administration, "FDA to Revoke Authorization for Use of Red No. 3 in Food and Ingested Drugs." https://www.fda.gov/food/hfp-constituent-updates/fda-revoke-authorization-use-red-no-3-food-and-ingested-drugs
25. Washington Times, "FDA to ban artificial food dyes by next year" (2025). https://www.washingtontimes.com/news/2025/apr/22/fda-ban-artificial-food-dyes-next-year/; STAT, "Food companies agree to phase out synthetic dyes" (2025). https://www.statnews.com/2025/04/22/food-companies-agree-to-phase-out-synthetic-dyes-handing-maha-a-victory/
26. Bakery & Snacks, "The snackdown: MAHA throws a Froot Loop at Kellogg's" (2025). https://www.bakeryandsnacks.com/Article/2025/09/02/rfk-jrs-maha-puts-kelloggs-froot-loops-in-the-crosshairs/
27. U.S. Food and Drug Administration, "Update: Quaker Issues Revised Recall Notice with Additional Products Due to Possible Health Risk" (2024). https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/update-quaker-issues-revised-recall-notice-additional-products-due-possible-health-risk
28. WK Kellogg Co, Form 10-K, FY2023 (spin-off from Kellanova, Oct 2, 2023), U.S. Securities and Exchange Commission (2024). https://www.sec.gov/Archives/edgar/data/1959348/000162828024009949/klg-20231230.htm
29. Ferrero, "Ferrero completes acquisition of WK Kellogg Co" (September 2025). https://www.ferrero.com/us/en/news-stories/news/ferrero-completes-acquisition-of-wk-kellogg-co
30. Mars, "Mars Completes Acquisition of Kellanova" (December 2025). https://www.mars.com/en-cz/news-and-stories/press-releases-statements/mars-completes-acquisition-of-kellanova