Greggs said positive trading and continued cost control means it expected a “modestly improved outcome” for 2026.
Like-for-like sales grew by 3.4% across its managed stores, with overall growth buoyed by the opening of new shops.
Woolley said Greggs’ workers had played a “huge part” in getting the company where it is.
She said: “Against that backdrop, our members will understandably be asking why their jobs and livelihoods should now be put at risk in the name of efficiency and future progression.”
But chief executive Roisin Currie said the company needed to “keep evolving alongside changing customer expectations”.
She said: “Greggs manufacturing and logistics network remains a key strength of the business, and these proposals are intended to strengthen our manufacturing network, improve efficiency and ensure we remain well placed for the future while continuing to deliver the quality, value and service our customers expect.”
The firm employs 33,000 people in the UK, the majority working in its stores.
A consultation with staff is expected to start soon and the company said “no final decisions” had been made yet.
The shake-up is expected to cost the firm about £60m, including disruption costs and redundancy payments.
It said the plans would save it about £20m across the 2028 and 2029 financial years.
The retail business said its sales grew by 7.7% in the three months to September 26, compared with the same period a year earlier.
It said this represented progress in the face of “challenging market conditions”, as consumer finances continued to come under pressure.
The company said positive trading and continued cost control meant it expected a “modestly improved outcome” for 2026.
Greggs opened 95 new shops and closed 38 in the year to date, taking its overall estate to 2,796 shops.
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