Criteo is losing the executive who ran its product organisation for six years, handing the function to its chief technology officer on an interim basis three weeks after the commerce media group cut its full-year outlook for the second time in three months.

Criteo confirmed that Todd Parsons, Chief Product Officer and President of Performance Media, is leaving the company to take a chief executive role at a private business. The notice, published on the company's investor relations newsroom under the heading Criteo Provides Update on Product Leadership, states that Parsons will move into an advisory role effective September 1 through September 30, 2026.

The item does not carry a visible publication date on the page supplied. Its own effective dates place it before September 1, 2026, which puts the disclosure in the final week of August. That absence of a date stamp is worth noting because the release is the sole primary account of the change; Criteo did not accompany it with a regulatory filing quoted in the notice, a named executive statement, or an appointment of a permanent successor.

What the company said

The statement is short. Two paragraphs cover the departure, the interim arrangement and a reassurance about continuity.

"A search for Criteo's next Chief Product Officer is underway," the company wrote, adding that in the interim, Chief Technology Officer Diarmuid Gill will assume responsibility for the product organisation. According to Criteo, Gill will be supported by product leadership within each of the company's two business segments, an arrangement the notice describes as providing accountability and continuity across the organisation.

Criteo also addressed the question that any product leadership vacancy raises for clients midway through a fiscal year. "Our product strategy, roadmap and client commitments are unchanged," the company stated, saying it remains focused on executing against that roadmap.

No successor has been named. No timeline was given for the search. The company did not identify the private business Parsons is joining, nor did it disclose the terms of the advisory arrangement covering September.

Two segments, one interim owner

The reference to two business segments is not decorative. Criteo reports Retail Media and Performance Media separately, and the split matters for understanding what Gill now oversees.

Retail Media covers sponsored product placements, onsite display and the monetisation stack Criteo operates on retailer properties. Performance Media covers commerce activation through Commerce Growth and the self-service GO platform, supply-side monetisation through Commerce Grid, and a category the company labels AdTech Services. In the second quarter of 2026, Retail Media revenue fell to 47.9 million dollars from 60.9 million dollars a year earlier, a decline of 21 percent as reported and 22 percent at constant currency.

Parsons held a dual mandate across that structure. He was promoted to Chief Product Officer and President, Performance Media during the second quarter of 2025, at the same time Sherry Smith became President, Retail Media, a pairing the company framed at the time as specialised leadership for each segment. His departure therefore vacates both a company-wide product function and the presidency of one of the two reporting segments. The notice addresses only the first of those.

Who Diarmuid Gill is

Gill is based in Paris, according to his LinkedIn profile, which lists his title as Chief Technology Officer at Criteo and describes his focus as leading AI innovation and product development of agentic commerce. The profile lists Dublin City University alongside Criteo and shows 7,402 followers. Parsons, by comparison, is listed in the New York City metropolitan area with 10,863 followers and a headline referencing AI, commerce, and the future of performance media.

The self-description on Gill's profile is the closest thing available to a statement of his existing remit, and it points at exactly the workstream Criteo has spent 2026 promoting. Agentic commerce sits inside engineering as much as product at the company, which reduces the distance the interim handover has to travel. It also concentrates two functions that most public technology companies deliberately keep separate, in a business where the product roadmap is currently the investment case.

Three weeks after a guidance cut

The timing places the change inside an unusually compressed run of executive and corporate activity.

On August 5, 2026, Criteo reported second quarter revenue of 428 million dollars, down 11 percent year over year and 11 percent at constant currency. Contribution ex-TAC came in at 255 million dollars, down 13 percent as reported, missing the guidance midpoint by roughly 7 million dollars. Adjusted EBITDA fell 18 percent to 73 million dollars at a 29 percent margin. Net income dropped 49 percent to 12 million dollars. The company cut full-year Contribution ex-TAC guidance to a decline of between 10 and 12 percent at constant currency, against guidance issued in May that had pointed to a low-single-digit decline. Parsons joined the question and answer session on that call.

The same release named Chief Strategy Officer Connor McGogney as Chief Financial Officer effective August 10, 2026, succeeding Sarah Glickman, who had held the role since 2020 and who remains as an adviser through September 30. Parsons now takes an advisory role over precisely the same window. Two members of the executive committee are therefore advising rather than operating for the whole of September, and the finance seat has changed hands while the product seat sits with an interim holder.

Chief Executive Michael Komasinski did not soften the quarter at the time. "We did not meet the expectations we set for ourselves," he said in prepared remarks, according to the earnings materials covered in PPC Land's report on the results. Guidance for the third quarter was set at 237 million to 241 million dollars in Contribution ex-TAC, a decline of 14 to 15 percent at constant currency.

An unresolved ownership question

Criteo's ownership has been in play since early July. Vista Equity Partners and Quinti Capital submitted an offer at a premium of more than 50 percent to the recent share price, according to two sources cited by Reuters in reporting published July 6, 2026. Nasdaq-listed shares closed 21.4 percent higher at 23.17 dollars that day, valuing the company at roughly 1.16 billion dollars. None of the three parties confirmed the terms publicly, and the approach remained unresolved through the second quarter results.

The corporate structure moved in parallel. Criteo completed its transfer of legal domicile from France to Luxembourg on July 29, 2026, terminating its American Depositary Share programme and beginning direct Nasdaq trading of ordinary shares under the CRTO ticker. A further transfer to the United States is expected in January 2027, subject to shareholder approval, with a move to the New York Stock Exchange contemplated on completion. Shareholders had approved the Luxembourg conversion on February 27, 2026 by 50,511,371 votes to 114,993.

Executive departures during an open acquisition approach carry a different weight than they do in ordinary conditions. A private equity buyer evaluating a take-private assesses the management team it would inherit alongside the asset. A permanent chief product officer hired now would be hired into a company whose ownership, domicile and stock exchange listing are all scheduled to change within roughly five months.

The roadmap Gill inherits

What makes the product seat consequential at Criteo in 2026 is that the company's growth argument rests almost entirely on products launched within the past eight months.

On February 5, 2026, Criteo introduced its Agentic Commerce Recommendation Service, reporting up to 60 percent improvement in recommendation relevancy against approaches relying solely on product descriptions, based on internal testing conducted in January 2026. The service runs through a Model Context Protocol implementation that lets AI assistants reach Criteo's recommendation infrastructure without merchants modifying backend systems.

On March 2, 2026, Criteo became the first advertising technology partner in OpenAI's ChatGPT advertising pilot, connecting roughly 17,000 advertisers to the Free and Go subscription tiers in the United States. By early May, more than 1,000 brands were running campaigns through that integration, with AI-referred conversion rates approaching twice the rate of traditional search referrals in selected retail categories. By the second quarter results, the company put the figure above 2,000 brands.

On March 31, 2026, Criteo opened its GO platform to full self-service, allowing small and mid-sized businesses to create accounts and launch campaigns in as few as five clicks. Parsons announced that expansion alongside Chief Customer Officer Ed Dinichert. Courtney MacConnell, previously Head of Shopping at Google, was named Vice President of Commercialization for GO, working with Christopher Towl as Vice President of GO Product.

Two weeks later, on April 16, 2026, Criteo and TripleLift announced a programmatic curation partnership built on SKU-level commerce audiences delivered through Deal IDs. Parsons was among the named stakeholders on the Criteo side.

Each of those initiatives was presented publicly with Parsons attached to it. The company's assertion that strategy and roadmap are unchanged is a claim about institutional continuity rather than personnel continuity, and it is the claim clients and partners will test over the next two quarters.

Parsons before Criteo

Parsons arrived at Criteo after a run at OpenX, which named him Chief Product Officer in August 2018. He joined that company from SocialCode, where he led product across social, mobile and video, and had earlier run product for the 330 million dollar marketing services business at Acxiom. He founded two venture-backed startups: Aditive, which Acxiom acquired in 2014, and BuzzLogic, an early platform for social media analytics and advertising. He also sat on the IAB Tech Lab board of directors alongside product and technology leaders from The Trade Desk, PubMatic, Integral Ad Science and GroupM.

At Criteo he presented the AI-driven product approach at the company's retail media investor update in November 2024, then under Chief Executive Megan Clarken. His six-year tenure therefore spans two chief executives, a rebranding around commerce media, a domicile change, and the pivot from managed services toward self-service technology.

Why this matters for the marketing community

For media buyers and agencies with active Criteo contracts, the practical question is narrow: whether the roadmap items sold during 2026 arrive on the timelines quoted. Criteo has stated that client commitments are unchanged. That statement now depends on an interim structure and on segment-level product leaders the company did not name.

For retailers evaluating Criteo as a retail media technology vendor, the calculation is longer-dated. The company won a Massmart deal covering 280 stores in Africa in July 2026, the kind of multi-year technology dependency that outlasts most executive tenures. Signing such an agreement now means signing while the vendor's ownership structure, legal domicile and product leadership are all in motion at once.

For the wider retail media and programmatic sector, the departure is another data point in a year of concentrated leadership change across advertising technology. Integral Ad Science replaced its chief executive on July 7, 2026. Criteo has now changed chief financial officer and chief product officer within a month of each other. In each case the vacancy has coincided with either a completed change of ownership or an open approach.

The reassurance in Criteo's notice is standard language for a departure of this kind. What distinguishes this one is the density of the surrounding calendar: a guidance cut on August 5, a new chief financial officer on August 10, a completed redomiciliation on July 29, an unresolved private equity approach dating to July 6, and a planned United States domicile transfer targeted for January 2027. The product organisation enters that stretch under interim leadership.

Timeline

Summary

Who: Criteo, listed on Nasdaq under CRTO and domiciled in Luxembourg since July 29, 2026. Todd Parsons, Chief Product Officer and President of Performance Media, is departing. Diarmuid Gill, Chief Technology Officer, assumes interim responsibility for the product organisation. Michael Komasinski is Chief Executive Officer; Connor McGogney became Chief Financial Officer on August 10, 2026.

What: Parsons is leaving Criteo to become chief executive of an unnamed private company, after six years running product. He transitions to an advisory role for one month. A search for a permanent Chief Product Officer is underway with no announced timeline. Criteo states that product strategy, roadmap and client commitments are unchanged, with segment-level product leaders supporting Gill across Retail Media and Performance Media.

When: The notice was published in the final week of August 2026 and carries no visible date stamp. The advisory role runs September 1 through September 30, 2026. The change follows second quarter results on August 5, 2026, and the chief financial officer transition on August 10, 2026.

Where: Criteo operates across more than 100 markets from Paris, with legal domicile in Luxembourg and a planned transfer to the United States in January 2027. Parsons is based in the New York City metropolitan area; Gill is based in Paris.

Why: The departure removes the executive attached to every major product announcement Criteo made in 2026, including the Agentic Commerce Recommendation Service, the OpenAI ChatGPT advertising partnership, the GO self-service expansion and the TripleLift curation deal. It lands three weeks after a guidance cut that put full-year Contribution ex-TAC on track for a decline of 10 to 12 percent at constant currency, and while a private equity approach reported on July 6, 2026 remains unresolved.