NBIS Nebius Group N.V.
Price Chart
Executive Summary
Four Nebius insiders sold a combined $104.1M in shares over an 8-day window, led by Chief Infrastructure Officer Korolenko Andrey's $101.6M open-market sale. This is highly material relative to the $55.8B market cap (~0.19%), and the cluster includes C-suite executives (CIO, CRO) acting in concert. The selling coincides with recent offering and earnings contexts — cross-filing actuarial data flags this combo as an amplifier. Despite the 77% bullish analyst consensus, the magnitude, seniority, and clustered timing of sales suggest insiders are taking significant chips off the table.
Key Financial Metrics
Actionable Insight
The CIO selling $101.6M in a single trade dwarfs all other insider activity — find out whether this was a 10b5-1 plan or discretionary; if unplanned, it signals acute conviction. Compare the sale price (~$203) to the $217.55 level where CRO sold two days later — the stepped-down pricing could suggest urgency. Given the poor historical track record of model calls on NBIS (T+20 avg alpha -16%), consider pairing this bearish signal with a tight stop or hedging rather than an outright short.
Key Facts
- Cluster total $104.13M in open-market sales from 4 insiders (May 13–20, 2026)
- CIO Korolenko alone sold $101.62M (500K shares at ~$203.24)
- CRO Boroditsky sold $979K (4.5K shares at $217.55) on May 15
- Director Bunina sold $1.02M and GC Boaz sold $517K
- Total cluster value represents ~0.19% of $55.8B market cap — proportionally significant
- Prior 30-day insider activity already included $206.8M in sells
- 10 of 12 contextual cross-filing combos on record are flagged as actuarial amplifiers
- Historical model performance on NBIS has been poor (average T+20 alpha -16.3%, win rate 20%)
Financial Impact
$104.13M in aggregate insider open-market sales
Risk Factors
- Insider sales may be part of pre-arranged 10b5-1 plans, reducing their informational content
- Analyst consensus is 77% bullish; strong buy-side sentiment could absorb selling pressure
- Historical cluster sells carry lower predictive power than cluster buys per academic literature
- Model's own T+20 alpha on NBIS is deeply negative, suggesting the stock has persistently defied bearish signals
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-NBIS-1779468093630 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 5, 2026
4d ago
|
Insider Cluster
| $232.50 awaiting T+1 | awaiting T+1 | — | $218.00 (−6.24%) |
|
Jun 3, 2026
6d ago
|
Insider Cluster
| $251.68 $259.67 | ▲ +3.17% | ▲ +2.78% | $218.00 (−13.38%) |
|
May 22, 2026
18d ago
|
Insider Cluster
| $214.77 $208.06 | ▲ +3.12% | ▲ +3.71% | $218.00 (−1.50%) |
|
May 19, 2026
21d ago
|
Insider Cluster
| $197.73 $191.82 | ▲ +2.99% | ▲ +4.03% | $218.00 (−10.25%) |
|
May 15, 2026
25d ago
|
Insider Cluster
| $199.86 $197.73 | ▼ −1.07% | ▼ −0.42% | $218.00 (+9.08%) |
|
May 13, 2026
27d ago
|
6-K
| $207.27 $221.15 | ▲ +6.70% | ▲ +5.92% | $218.00 (+5.18%) |
|
Apr 14, 2026
8w ago
|
Insider Cluster
| $161.94 $166.77 | ▼ −2.98% | ▼ −2.21% | $218.00 (−34.62%) |
|
Apr 6, 2026
9w ago
|
Insider Cluster
| $112.54 $117.40 | ▼ −4.32% | ▼ −4.26% | $218.00 (−93.71%) |
|
Mar 31, 2026
10w ago
|
Insider Cluster
| $103.76 $101.95 | ▲ +1.74% | ▲ +2.49% | $218.00 (−110.10%) |
|
Mar 31, 2026
10w ago
|
Insider Cluster
| $103.76 $101.95 | ▲ +1.74% | ▲ +2.49% | $218.00 (−110.10%) |
US Market Status
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