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Arkadiy Volozh

CEO10%+ OwnerC-Level5%+ OwnerDirectorHeavy Seller (2026)1%+ OwnerReporting OfficerActively Reporting
Current role
CEO, Director, 10%+ Owner · Nebius
Current holdings (from latest Form 3/4/5)
Nebius NBIS: 823,014 shares ≈ $173.35M (0.34% of co.) (as of 2026-09-01)
Insider activity since 2026-04
Invested $0 (1,352 shares acquired)
↳ notional today: $284.8K
Divested $14.44M (79,985 shares sold)
↳ notional today: $16.85M
→ Net divested $14.44M
↳ net notional: ↓ $16.56M
Change since first tracked filing (not total holdings; see methodology). Prices as of 2026-09-03.

Arkady Volozh is the principal founder and CEO of Nebius Group, appointed as executive director and CEO in August 2024. He previously served as founder, Executive Director and Chief Executive Officer from 2000 to 2022. As of March 31, 2026, Volozh beneficially held approximately 52% of the voting control of Nebius through a family trust holding Class B shares, representing an 11% economic interest and making Nebius a "Controlled Company" under Nasdaq rules.

A serial entrepreneur with a background in computer science, Volozh founded InfiNet Wireless and CompTek International, where he also served as CEO. His board and investment experience includes Face.com, an Israeli face-tagging company sold to Facebook in 2012; Getir, a Turkish quick-commerce pioneer credited with introducing the 15-minute grocery delivery model; and US-based Neurosteer, which developed the first wearable, medical-grade brain activity interpretation platform.

Volozh holds a degree in applied mathematics from Gubkin Institute of Oil and Gas.

Biography extracted from Nebius 20-F filed 2026-04-30 View cached copy (2026-08-31)Live source ↗

Roles

Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.

CompanyRoleTenureFilings
NebiusCEO, Director, 10%+ Owner2026-04 → present (5mo)3
Show 3 underlying filings
2026-09-01 · Nebius Form 4 filed 2026-09-03
View cached copy (2026-09-04)Live source ↗
2026-07-01 · Nebius Form 4 filed 2026-07-06
View cached copy (2026-08-30)Live source ↗
2026-04-01 · Nebius Form 4 filed 2026-04-02
View cached copy (2026-08-30)Live source ↗

Insider transactions

Totals for this person

BucketInvested (shares)Invested (USD)Divested (shares)Divested (USD)Net directionTxnsInvested @ last priceDivested @ last price
All time1,352$079,985$14.44M↓ Divested $14.44M3$284.8K$16.85M
20261,352$079,985$14.44M↓ Divested $14.44M3$284.8K$16.85M
2026-Q2-$033,358$3.46M↓ Divested $3.46M1$0$7.03M
2026-Q31,352$046,627$10.98M↓ Divested $10.98M2$284.8K$9.82M

Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-09-03); they are a valuation, not a cash flow, and they move every day the market does.

All transactions

DateCompanyKindSharesAmount (USD)Value @ last price
2026-09-01NebiusGrant / award / vesting · Class A Shares1,352-$284.8K
2026-07-01NebiusOpen-market sale · Class A Shares46,627$10,978,327$9.82M
2026-04-01NebiusOpen-market sale · Class A Shares33,358$3,460,272$7.03M