Reported value$122K770 shares at $159.01
For this personUnusual6 buys · 0 sales on file
Similar buys beat S&P48%583 cases · all buys 46%
Worth a closer look
- Open-market purchase with their own money (Form 4 code P), not a grant or option exercise.
- Raised their own holding by 12%.
- About 2× their largest earlier purchase here.
- Similar past buys beat the S&P 500 48% of the time (583 cases), above the 46% for all buys.
Reasons for caution
- Other insiders sold $163M in the same 90 days, more than was bought (88% of it pre-planned).
What happened after this filing
7 days
Pending
due Nov 2
30 days
Pending
due Nov 25
90 days
Pending
due Jan 24
Insider Twins: past buys with the same traits
1 insider buying · no CEO or CFO · $250K–$1M · stock down 0–20% in 3 months
AGL Mar 3, 2026 +541.0% vs S&PFUBO Sep 28, 2020 +370.9% vs S&PMRNA Feb 18, 2020 +334.9% vs S&PASPU Oct 4, 2021 -70.5% vs S&PEOLS Aug 31, 2021 -52.3% vs S&PMDIA Feb 11, 2022 -49.9% vs S&PWhat we couldn't check
- Why they traded. Filings don't say, and we don't guess.
- Company news after the filing, and any private terms.
Summary
Arne Grimme (a director) bought $122K of NBIS at about $159.01 between Oct 22, 2026 and Oct 26, 2026, reported to the SEC on Oct 26, 2026. Buys like this beat the S&P 500 48% of the time since 2020, against 46% for all insider buys. We found 4 points that make it worth a closer look and 1 reason for caution. History, not a prediction.
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Written by fixed rules from SEC filings and our measured history, not by an AI model. Public data only. History, not a prediction, and not investment advice.