Director Arne Grimme of Nebius Group N.V. filed a Form 4 on October 29, 2026, reporting two open-market purchases of Class A Shares on October 27 and October 28, 2026, executed under a Rule 10b5-1 trading plan.

Key Highlights

  • First purchase: 205 Class A Shares acquired on October 27, 2026, at $159.04 per share.
  • Second purchase: 148 Class A Shares acquired on October 28, 2026, at $169.84 per share.
  • Resulting ownership: Grimme directly held 7,751 Class A Shares following the October 28 transaction.
  • Trading plan: Both purchases were made pursuant to a Rule 10b5-1 plan adopted by the reporting person on June 15, 2026.
  • Issuer: Nebius Group N.V., trading on NASDAQ:NBIS.
  • Foreign private issuer exemption: The filing notes that transactions are exempt from Sections 16(b) and 16(c) of the Act due to the issuer's status as a foreign private issuer under Rule 3a12-3(b).

Grimme's Two-Day Class A Share Purchases Under 10b5-1 Plan

According to the filing, Arne Grimme, a director of Nebius Group N.V. (NASDAQ:NBIS), reported two purchases of Class A Shares in Table I of the Form 4. On October 27, 2026, Grimme acquired 205 shares at a price of $159.04, bringing his direct beneficial ownership to 7,603 shares. The following day, October 28, 2026, he acquired an additional 148 shares at $169.84, raising his directly held total to 7,751 Class A Shares.

The filing states that both transactions were made pursuant to a Rule 10b5-1 trading plan that Grimme adopted on June 15, 2026. The form was signed by Nathalie van Wiggen as attorney-in-fact for Grimme and submitted on October 29, 2026. No derivative securities transactions were reported in Table II.

The filing also includes a remark noting that "due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Act, the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act." All ownership reported is held directly by Grimme.

What Was Disclosed

Director Arne Grimme disclosed the purchase of a combined 353 Class A Shares of Nebius Group N.V. across two trading days, under a pre-established Rule 10b5-1 plan, resulting in direct beneficial ownership of 7,751 shares as of October 28, 2026.