IBP completes acquisition of Diamond Energy Systems (~$12M revenue) and announces share repurchase of 240k shares

Installed Building Products, Inc.

Acquired Diamond Energy Systems (St. Joseph, MN), a mechanical insulation firm adding ~$12M in annual revenue.
Total 2026 acquired annual revenue now ~$40M across all acquisitions to date.
Repurchased ~240,000 shares from May 1–18, 2026 for $51.2M including commissions.
Remaining share repurchase authorization of ~$425M as of May 19, 2026.

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