Mueller Industries, Inc.

Filing receipts

“The following tables compare cost of goods sold and operating expenses as dollar amounts and as a percent of net sales for the first quarters of 2026 and 2025: For the Quarter Ended (In thousands) March 28, 2026 March 29, 2025 Cost of goods sold $ 81,763 $ 78,515 Depreciation and amortization 1,679 1,692 Selling, general and administrative expense 6,944 7,279 Gain on disposal of assets, net — (3) Operating expenses $ 90,386 $ 87,483 For the Quarter Ended March 28, 2026 March 29, 2025 Cost of goods sold 66.1 % 63.8 % Depreciation and amortization 1.4 1.4 Selling, general and administrative expense 5.6 5.9 Gain on disposal of assets, net — — Operating expenses 73.1 % 71.1 % Cost of goods sold...”

“The following tables compare cost of goods sold and operating expenses as dollar amounts and as a percent of net sales for the first quarters of 2026 and 2025: For the Quarter Ended (In thousands) March 28, 2026 March 29, 2025 Cost of goods sold $ 262,242 $ 207,486 Depreciation and amortization 8,308 8,356 Selling, general, and administrative expense 6,448 5,987 Loss on disposal of assets, net 8 — Operating expenses $ 277,006 $ 221,829 For the Quarter Ended March 28, 2026 March 29, 2025 Cost of goods sold 81.6 % 82.4 % Depreciation and amortization 2.6 3.3 Selling, general, and administrative expense 2.0 2.4 Loss on disposal of assets, net — — Operating expenses 86.2 % 88.1 % The change in...”

“239,018 157,432 51.8 The increase in net sales during the first quarter of 2026 was primarily due to (i) higher net selling prices of $219.1 million in our core product lines, primarily copper tube, brass rod, and high-quality wire and cable, related to the rise in raw material costs, and (ii) an increase in sales of $16.8 million in our non-core product lines.”