NBIS · smart money activity

Who's buying Nebius Group N.V.?

Arne Grimme (Director): bought $248K on the open market in 4 filings; Soros Fund Management: new position: 310.0K sh (~$85.6M, 1.1% of book).

Smart money score54#53 of 372 stocks
Latest filingOct 26, 2026
Independent buyers2
Signal sources13F, Form 4
Signals against0

NBIS insider buying, 13F and 13D filings

  • Oct 26, 2026Insider buy
    Arne Grimme (Director): Bought $248K on the open market in 4 filings
    4 purchases filed 2026-10-16 to 2026-10-26. Latest: 770 shares at ~$159.01, traded 2026-10-22 to 2026-10-26. Now holds 7.4K shares (stake up 12%). Made under a pre-set 10b5-1 plan, which is a weaker signal.
  • Aug 14, 2026New 13F stake
    Soros Fund Management: New position: 310.0K sh (~$85.6M, 1.1% of book)
    13F for the quarter ended 2026-06-30. Filed 2026-08-14.

Signals come from SEC filings: Form 4 (insiders, filed within 2 business days), 13F (fund holdings, up to 45 days after quarter end) and Schedule 13D (5%+ activist stakes). This page reports what the filings show; it is not investment advice.