Morgan Stanley is boosting its stock plan administration plan business with the acquisition of software-as-a-service provider Solium Capital Inc., according to Morgan Stanley.

Solium currently has 3,000 stock plan clients with a million participants while Morgan Stanley has 320 stock plan clients with 1.5 million participants, Morgan Stanley says in a press release. Calgary, Canada-based Solium’s clients include Instacart, Levi Strauss, Shopify and Stripe, according to the press release. Solium also boasts a strong business-to-business salesforce and is a top provider in private company equity administration, all of which is expected to bolster Morgan Stanley’s existing offering, the companies say.

Morgan Stanley signed a definitive agreement to acquire all of the issued and outstanding common shares of Solium for $900 million, according to the press release. The deal is expected to close in the second quarter subject to regulatory and shareholder approvals, Morgan Stanley says.