NBIS's three largest insider shareholders as of September 17, 2026 are Ophir Nave (Coo, 954.68K shares), Arkadiy Volozh (Ceo, 823.01K shares), Andrey Korolenko (Chief Infrastructure Officer, 551.34K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Ophir Nave | Coo | 954,685 | 0 | 954,685 | 27.8% | 03 Sep, 2026 |
| 2 | Arkadiy Volozh | Ceo | 823,014 | 0 | 823,014 | 23.9% | 03 Sep, 2026 |
| 3 | Andrey Korolenko | Chief Infrastructure Officer | 551,338 | 0 | 551,338 | 16.0% | 06 Jul, 2026 |
| 4 | John Wilson Iv Boynton | Director | 410,832 | 0 | 410,832 | 11.9% | 17 Sep, 2026 |
| 5 | Danila Shtan | Chief Technology Officer | 274,763 | 0 | 274,763 | 8.0% | 06 Jul, 2026 |
| 6 | Charles E Ryan | Director | 273,885 | 0 | 273,885 | 8.0% | 03 Sep, 2026 |
| 7 | Boaz Tal | General Counsel | 80,754 | 0 | 80,754 | 2.3% | 22 May, 2026 |
| 8 | Kira Radinsky | Director | 16,754 | 0 | 16,754 | 0.5% | 03 Sep, 2026 |
| 9 | Matthew Robert Weigand | Director | 14,987 | 0 | 14,987 | 0.4% | 02 Sep, 2026 |
| 10 | Sanchez Maria Del Dado Alonso | Cfo | 12,202 | 0 | 12,202 | 0.4% | 02 Sep, 2026 |
| 11 | Elena Bunina | Director | 12,124 | 0 | 12,124 | 0.4% | 03 Sep, 2026 |
| 12 | Yael Almog | General Counsel | 7,793 | 0 | 7,793 | 0.2% | 24 Jul, 2026 |
| 13 | Arne Grimme | Director | 5,885 | 0 | 5,885 | 0.2% | 03 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 1,264 | $207.67 | $262.49K | 415,932 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 1,900 | $208.84 | $396.80K | 414,032 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 1,100 | $209.74 | $230.71K | 412,932 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 400 | $210.53 | $84.21K | 412,532 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 200 | $211.88 | $42.38K | 412,332 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 300 | $213.40 | $64.02K | 412,032 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 900 | $214.81 | $193.33K | 411,132 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 200 | $215.59 | $43.12K | 410,932 | Direct |
| 15 Sep, 2026 | John Wilson Iv Boynton | Director | Disposed S | 100 | $216.52 | $21.65K | 410,832 | Direct |
| 01 Sep, 2026 | John Wilson Iv Boynton | Director | Acquired A | 1,352 | $0.00 | $0 | 417,196 | Direct |
| 01 Sep, 2026 | Ophir Nave | Coo | Acquired A | 1,352 | $0.00 | $0 | 954,685 | Direct |
| 01 Sep, 2026 | Elena Bunina | Director | Acquired A | 1,352 | $0.00 | $0 | 12,124 | Direct |
| 01 Sep, 2026 | Arne Grimme | Director | Acquired A | 1,352 | $0.00 | $0 | 5,885 | Direct |
| 01 Sep, 2026 | Charles E Ryan | Director | Acquired A | 1,352 | $0.00 | $0 | 273,885 | Direct |
| 01 Sep, 2026 | Arkadiy Volozh | Ceo | Acquired A | 1,352 | $0.00 | $0 | 823,014 | Direct |
| 01 Sep, 2026 | Kira Radinsky | Director | Acquired A | 1,352 | $0.00 | $0 | 16,754 | Direct |
| 01 Sep, 2026 | Matthew Robert Weigand | Director | Acquired A | 1,352 | $0.00 | $0 | 14,987 | Direct |
| 01 Sep, 2026 | Sanchez Maria Del Dado Alonso | Cfo | Disposed S | 470 | $196.00 | $92.12K | 12,202 | Direct |
| 14 Aug, 2026 | Charles E Ryan | Director | Disposed S | 13,315 | $263.32 | $3.51Mn | 309,218 | Direct |
| 14 Aug, 2026 | John Wilson Iv Boynton | Director | Disposed S | 100 | $258.55 | $25.86K | 421,040 | Direct |