Boston Scientific reports Q3 2026 results and cuts FY‑2026 outlook after cyberattack

Boston Scientific posted third‑quarter 2026 net sales of $5.138 billion, up 1.5% year‑over‑year, and adjusted EPS of $0.73. The company lowered its full‑year 2026 sales growth forecast to about 4.25% (reported) and adjusted EPS guidance to $3.16‑$3.18, citing the August cyber‑security incident that disrupted manufacturing and order processing. It also expects fourth‑quarter sales to decline 1%‑3% versus the prior year.

The reduced sales growth and earnings guidance signal lower near‑term earnings than analysts expected, which may pressure the stock price (the company’s shares fell 8%‑12% in pre‑market trading). The guidance also sets a new baseline for investors’ valuation models for the remainder of 2026.

  • 1Q3 2026 net sales were $5.138 billion, a 1.5% increase on a reported basis versus the prior year.
  • 2Adjusted EPS for Q3 2026 was $0.73 per share.
  • 3Full‑year 2026 net‑sales growth is now estimated at approximately 4.25% on a reported basis and 3.75% on an organic basis.
  • 4Adjusted EPS guidance for FY 2026 is $3.16 to $3.18 per share.
  • 5Q4 2026 net‑sales are expected to decline 1% to 3% versus the prior year.
  • 6The company attributes the weaker outlook to an August 2026 cyber‑attack that disrupted operations.

Sources