Bionano Genomics's top three insider shareholders as of September 29, 2026 are Soheil Shams (Chief Informatics Officer, 20.18Mn shares), Christopher P. Stewart (Chief Financial Officer, 1.07Mn shares), Hannah Mamuszka (Director, 249.29K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Soheil Shams | Chief Informatics Officer | 20,178,992 | 0 | 20,178,992 | 92.9% | 20 Oct, 2021 |
| 2 | Christopher P. Stewart | Chief Financial Officer | 1,066,182 | 0 | 1,066,182 | 4.9% | 16 May, 2023 |
| 3 | Hannah Mamuszka | Director | 249,289 | 0 | 249,289 | 1.1% | 14 Jun, 2023 |
| 4 | David L Barker | Director | 221,154 | 0 | 221,154 | 1.0% | 11 Jul, 2022 |
| 5 | Albert Luderer | Interim Chief Executive | 0 | 8,000 | 8,000 | 0.0% | 09 Sep, 2026 |
| 6 | R. Erik Holmlin | President And Ceo | 1,657 | 0 | 1,657 | 0.0% | 18 Feb, 2026 |
| 7 | Gulsen Kama | Chief Financial Officer | 1,011 | 0 | 1,011 | 0.0% | 05 Jun, 2024 |
| 8 | Mark Oldakowski | Chief Operating Officer | 868 | 0 | 868 | 0.0% | 03 Jun, 2026 |
| 9 | Alka Chaubey | Chief Medical Officer | 620 | 0 | 620 | 0.0% | 03 Jun, 2026 |
| 10 | Mark Adamchak | Principal Accounting Officer | 253 | 0 | 253 | 0.0% | 03 Jun, 2026 |
| 11 | Jonathan V. Dixon | General Counsel | 239 | 0 | 239 | 0.0% | 03 Jun, 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 |
|---|---|---|---|---|---|---|---|---|
| 04 Sep, 2026 | Albert Luderer | Interim Chief Executive | Acquired P | 4,000 | $1.21 | $4.84K | 8,000 | Indirect |
| 21 Aug, 2026 | Albert Luderer | Interim Chief Executive | Acquired P | 4,000 | $1.22 | $4.86K | 4,000 | Indirect |
| 03 Aug, 2026 | Jonathan V. Dixon | General Counsel | Acquired A | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 03 Aug, 2026 | Mark Oldakowski | Chief Operating Officer | Acquired A | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 03 Aug, 2026 | Alex Reid Hastie | Chief Scientific Officer | Acquired A | 54,000 | $0.00 | $0 | 54,000 | Direct |
| 03 Aug, 2026 | Mark Adamchak | Principal Accounting Officer | Acquired A | 5,000 | $0.00 | $0 | 5,000 | Direct |
| 03 Jun, 2026 | Jonathan V. Dixon | General Counsel | Disposed F | 24 | $1.30 | $31 | 239 | Direct |
| 03 Jun, 2026 | Alka Chaubey | Chief Medical Officer | Disposed F | 24 | $1.30 | $31 | 620 | Direct |
| 03 Jun, 2026 | Mark Oldakowski | Chief Operating Officer | Disposed F | 27 | $1.30 | $35 | 868 | Direct |
| 03 Jun, 2026 | Mark Adamchak | Principal Accounting Officer | Disposed F | 7 | $1.30 | $9 | 253 | Direct |
| 14 May, 2026 | Kristiina Md Vuori | Director | Acquired A | 9,149 | $0.00 | $0 | 9,149 | Direct |
| 14 May, 2026 | Yvonne Linney | Director | Acquired A | 9,149 | $0.00 | $0 | 9,149 | Direct |
| 14 May, 2026 | Christopher J Twomey | Director | Acquired A | 9,149 | $0.00 | $0 | 9,149 | Direct |
| 14 May, 2026 | Aleksandar Rajkovic | Director | Acquired A | 9,149 | $0.00 | $0 | 9,149 | Direct |
| 14 May, 2026 | David L Barker | Director | Acquired A | 9,149 | $0.00 | $0 | 9,149 | Direct |
| 17 Feb, 2026 | Mark Adamchak | Principal Accounting Officer | Disposed F | 3 | $1.10 | $3 | 260 | Direct |
| 17 Feb, 2026 | Jonathan V. Dixon | General Counsel | Disposed F | 6 | $1.10 | $7 | 263 | Direct |
| 17 Feb, 2026 | Mark Oldakowski | Chief Operating Officer | Disposed F | 20 | $1.10 | $22 | 895 | Direct |
| 17 Feb, 2026 | Alka Chaubey | Chief Medical Officer | Disposed F | 18 | $1.10 | $20 | 644 | Direct |
| 17 Feb, 2026 | R. Erik Holmlin | President And Ceo | Disposed F | 51 | $1.10 | $56 | 1,657 | Direct |