The investigation, which started in 2020, focused on child users between the ages of 13 and 17 who were allowed to operate business accounts, which facilitated the publication of the user’s phone number and/or email address.
Full details of the decision will be published next week, he said.
Instagram updated its settings over a year ago and has since released new features to keep teens safe and their information private, the Meta spokesperson said.
The spokesperson said Instagram disagrees with how the fine was calculated and is carefully reviewing the decision.
WhatsApp was last year fined a record 225 million euros for failing to conform with EU data rules in 2018.
The Irish regulator completed a draft ruling in the Instagram investigation in December and shared it with other European Union regulators under the bloc’s “one stop shop” system of regulating large multinationals.