$GFF

JELD-WEN (JELD) raised full-year guidance but its stock fell 3.1% post-earnings. Builders FirstSource (BLDR) reported an 8.8% revenue decline, missing estimates, and its stock dropped 20.9%. Fortune Brands (FBIN) met revenue expectations but its stock fell 22.8%. Griffon (GFF) reported a 7% revenue increase, beating estimates, with its stock unchanged. The market has shifted focus from AI to geopolitics and back to fundamentals.

JELD-WEN raised full-year guidance, with its stock up 21.9% since reporting. Builders FirstSource (BLDR) reported $3.86B revenue, down 8.8% YoY, missing estimates, and its stock fell 17.6%. Masco (MAS) reported $1.99B revenue, down 2.9% YoY, missing estimates, with its stock down 16.1%. Griffon (GFF) reported $481.4M revenue, up 7% YoY, beating estimates, and its stock is flat.

GRIFFON CORP (GFF) filed an SEC Form 8-K — Entry into a Material Definitive Agreement. Exhibit 99.1 Execution Version THIRD AMENDMENT TO FIFTH AMENDED AND RESTATED CREDIT AGREEMENT THIRD AMENDMENT TO FIFTH AMENDED AND RESTATED CREDIT AGREEMENT, dated as of August 18, 2026 (this “ Agreement ”), to that certain Fifth Amended and Restated Credit Agreement, dated as of

Griffon Corp (GFF) priced an $800M unregistered senior unsecured notes offering due 2034 with a 6.25% coupon in August 2026 to redeem its 5.75% notes due 2028. The company reaffirmed 2026 revenue guidance of $1.8B, declared a $0.22 quarterly dividend, and continued share buybacks.

TURNBULL CHERYL L sold 3,000 shares of GRIFFON CORP (GFF) at $106.12 ($0.32M total) on 2026-08-13.

Sullivan Kevin F sold 3,500 shares of GRIFFON CORP (GFF) at $105.59 ($0.37M total) on 2026-08-13.

Griffon Corp (GFF) reported Q3 fiscal 2026 results: revenue $481.4 million (+7%), adjusted EBITDA $124.8 million (+2%), and adjusted EPS $1.51. Free cash flow was $194.2 million YTD. The company received $181 million cash plus a $49 million PIK note from an Australasia JV and $100 million cash plus a $161 million note from a North America JV, repaying a $285 million Term Loan B. Full-year guidance: revenue $1.8 billion and EBITDA $458 million.

MEHMEL ROBERT F (President and COO) sold 22,567 shares of GRIFFON CORP (GFF) at an average of $106.47 ($104.08–$108.09, $2.40M total) across 6 trades over 2026-08-07 to 2026-08-10 under a Rule 10b5-1 trading plan.

Harris Brian G (EVP, Chief Financial Officer) sold 5,267 shares of GRIFFON CORP (GFF) at $107.11 ($0.56M total) on 2026-08-07 under a Rule 10b5-1 trading plan.

GRIFFON CORP (GFF) filed an SEC Form 8-K — Entry into a Material Definitive Agreement. Exhibit 99.1 Execution Version CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH NOT MATERIAL AND IS OF THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL. Griffon Corporation $800,000,000 6.250% Senior Notes due 2034 PURCHASE AGREEM