"Over time there will inevitably be consolidation in the wider U.S. on-demand delivery market, as various players combine to optimise the last mile," Jitse Groen told investors in a livestreamed presentation.

Company management "expects Grubhub to be involved in this consolidation when it comes and intends to do so from a position of strength".

Asked whether he would consider selling or combining the whole of Grubhub's business, which Takeaway bought for $7.3 billion in June, Groen demurred.

"Grubhub is fresh," he said, but added that "anything that makes Grubhub a stronger player - we'll look at it".

Takeaway's shares are down 25% so far this year, in part due to the company losing market share in U.S. suburbs and after New York City, its biggest and strongest market, imposed a cap on the commission food-delivery companies can charge restaurants.

Investors have called on the company to address its competitive position in the United States - where Grubhub is pitted against Uber Eats and DoorDash among others - including by considering selling parts of its operations. They also want Takeaway to clarify its strategy on grocery delivery, where it competes strongly with Amazon-backed Deliveroo in Europe.

In a presentation, Takeaway it said it would target Gross Transaction Value growth - a common measure in e-commerce - in the "mid teens" for 2022.

The company repeated its full-year 2021 forecast for an earnings before interest, tax, depreciation and amortisation (EBITDA) margin of -1%-1.5% on a gross transaction value of 28 billion-30 billion euros ($32 billion-$35 billion). That translates to an EBITDA loss of 280 million-380 million euros.

For 2022, the company told investors to expect the negative margin to improve to -0.6% to -0.8%, and that it expects a positive margin in "long term" as GTV doubles over the next five years.

Bernstein analysts, who rate Takeaway shares "Outperform", said in a note that the 2022 guidance was lower than expected but "we remain positive about the position of Takeaway in its core markets."

Shares recovered some of their early losses after Groen's remarks and were trading down 0.6% at 71.36 euros at 1253GMT.

(Reporting by Toby Sterling; Editing by Susan Fenton, Kirsten Donovan)

By Toby Sterling