Artivion NYSE: AORT reported second-quarter 2026 revenue of $125.8 million, up 9% year over year on a constant-currency basis, as growth in stent grafts and On-X heart valves offset modest declines in BioGlue. Adjusted EBITDA rose about 7% to $26.4 million, while adjusted EBITDA margin declined roughly 90 basis points to 21% amid higher research and development spending and costs related to the Endospan acquisition.