🕵️ Butterfly Network, Inc. ($BFLY)
SEC insider & ownership activity, last 12 months · CIK 1804176 · every row links its SEC filing
Over the last 12 months insiders sold $88.9M against $12.2M of open-market buying. Jonathan M. Rothberg sold $75.2M through a program of 24 sale notices averaging $2.9M (Nov–Jul). 6 planned sales are pending, the largest $12.7M (Jonathan M. Rothberg). One red-flag 8-K in the window: Delisting notice (3.01), Jan 13, 2026.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
3 buyers, $12.2M (10 lots) · 8 sellers, $88.9M (66 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Jonathan M. Rothberg | 0 | – | 39 | $75.2M | Jul 22, 2026 |
| Robbins Larry | 7 | $11.5M | 0 | – | Dec 11, 2025 |
| Devivo Joseph | 0 | – | 4 | $5.4M | Jul 20, 2026 |
| Cashman Steve | 2 | $82K | 7 | $5.1M | Jun 8, 2026 |
| John N. Doherty | 0 | – | 3 | $1.0M | Jul 20, 2026 |
| Carlson Megan | 0 | – | 4 | $1.0M | Jul 2, 2026 |
| Ku Victor | 0 | – | 3 | $736K | Jul 20, 2026 |
| Phanstiel S. Louise | 1 | $571K | 0 | – | Dec 15, 2025 |
| Carfora Dawn | 0 | – | 1 | $302K | Nov 4, 2025 |
| Caezza Nicholas | 0 | – | 5 | $72K | Jun 2, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Jonathan M. Rothberg | 100.0% | Class A | 13D | Jul 21, 2026 | filing ↗ |
| 4C Holdings V, LLC | 40.0% | Class A | 13D | Jul 21, 2026 | filing ↗ |
| 4C Holdings I, LLC | 36.8% | 13D | Mar 5, 2025 | filing ↗ | |
| 4C Holdings I, LLC | 21.4% | Class A | 13D | Jul 21, 2026 | filing ↗ |
| 4C Holdings II, LLC | 11.9% | Class A | 13D | Jul 21, 2026 | filing ↗ |
| 4C Holdings III, LLC | 11.9% | Class A | 13D | Jul 21, 2026 | filing ↗ |
| 4C Holdings IV, LLC | 11.9% | Class A | 13D | Jul 21, 2026 | filing ↗ |
| Robbins Larry | 8.5% | 13D | Feb 12, 2026 | filing ↗ | |
| Blackrock, Inc. | 7.8% | Class A | 13G | Jul 27, 2026 | filing ↗ |
| Glenview Capital Management, LLC | 6.3% | 13D | Feb 12, 2026 | filing ↗ | |
| Jonathan M. Rothberg | exited | Class A | 13D | Jul 21, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Jonathan M. Rothberg | $4.3M | Jul 22, 2026 | filing ↗ |
| Jonathan M. Rothberg | $5.1M | Jul 21, 2026 | filing ↗ |
| Jonathan M. Rothberg | $7.8M | Jul 20, 2026 | filing ↗ |
| John N. Doherty | $7 | Jul 20, 2026 | filing ↗ |
| Devivo Joseph | $1.4M | Jul 20, 2026 | filing ↗ |
| John N. Doherty | $375K | Jul 20, 2026 | filing ↗ |
| Ku Victor | $318K | Jul 20, 2026 | filing ↗ |
| Jonathan M. Rothberg | $7.9M | Jul 17, 2026 | filing ↗ |
| Jonathan M. Rothberg | $10.4M | Jul 16, 2026 | filing ↗ |
| Jonathan M. Rothberg | $12.7M | Jul 15, 2026 | filing ↗ |
| Jonathan M. Rothberg | $6.3M | Jul 14, 2026 | filing ↗ |
| Devivo Joseph | $1.6M | Jul 7, 2026 | filing ↗ |
| Ku Victor | $281K | Jul 7, 2026 | filing ↗ |
| John N. Doherty | $435K | Jul 7, 2026 | filing ↗ |
| Carlson Megan | $329K | Jul 2, 2026 | filing ↗ |
| Carfora Dawn | $1.6M | Jun 29, 2026 | filing ↗ |
| Carfora Dawn | $661K | Jun 22, 2026 | filing ↗ |
| Cashman Steve | $865K | Jun 8, 2026 | filing ↗ |
| Cashman Steve | $508K | Jun 8, 2026 | filing ↗ |
| Cashman Steve | $520K | Jun 5, 2026 | filing ↗ |
| Caezza Nicholas | $8K | Jun 2, 2026 | filing ↗ |
| Carlson Megan | $524K | May 1, 2026 | filing ↗ |
| Cashman Steve | $724K | Apr 29, 2026 | filing ↗ |
| Cashman Steve | $1.0M | Apr 16, 2026 | filing ↗ |
| Devivo Joseph | $1.8M | Mar 5, 2026 | filing ↗ |
| Carlson Megan | $156K | Mar 3, 2026 | filing ↗ |
| Devivo Joseph | $599K | Mar 3, 2026 | filing ↗ |
| Caezza Nicholas | $53K | Mar 3, 2026 | filing ↗ |
| Cashman Steve | $158K | Mar 3, 2026 | filing ↗ |
| Cashman Steve | $1.1M | Feb 26, 2026 | filing ↗ |
| Jonathan M. Rothberg | $1.4M | Jan 8, 2026 | filing ↗ |
| Jonathan M. Rothberg | $1.9M | Jan 7, 2026 | filing ↗ |
| John N. Doherty | $239K | Jan 7, 2026 | filing ↗ |
| Jonathan M. Rothberg | $1.4M | Jan 6, 2026 | filing ↗ |
| Ku Victor | $137K | Jan 5, 2026 | filing ↗ |
| Jonathan M. Rothberg | $60K | Dec 26, 2025 | filing ↗ |
| Jonathan M. Rothberg | $11K | Dec 24, 2025 | filing ↗ |
| Jonathan M. Rothberg | $179K | Dec 23, 2025 | filing ↗ |
| Jonathan M. Rothberg | $894K | Dec 16, 2025 | filing ↗ |
| Jonathan M. Rothberg | $1.9M | Dec 15, 2025 | filing ↗ |
| Jonathan M. Rothberg | $596K | Dec 12, 2025 | filing ↗ |
| Jonathan M. Rothberg | $380K | Dec 11, 2025 | filing ↗ |
| Jonathan M. Rothberg | $905K | Dec 10, 2025 | filing ↗ |
| Jonathan M. Rothberg | $547K | Dec 9, 2025 | filing ↗ |
| Jonathan M. Rothberg | $2.5M | Dec 8, 2025 | filing ↗ |
| Jonathan M. Rothberg | $116K | Dec 5, 2025 | filing ↗ |
| Jonathan M. Rothberg | $197K | Dec 4, 2025 | filing ↗ |
| Caezza Nicholas | $5K | Dec 2, 2025 | filing ↗ |
| Jonathan M. Rothberg | $408K | Nov 28, 2025 | filing ↗ |
| Jonathan M. Rothberg | $1.4M | Nov 26, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 18, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Delisting notice (3.01) | Jan 13, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Material agreement (1.01) | Nov 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 17, 2025 | filing ↗ |
| Earnings (2.02) | Oct 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 31, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 5, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 5, 2025 | filing ↗ |
| Earnings (2.02) | Jul 29, 2025 | filing ↗ |
| Officer/director changes (5.02) | Jul 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2025 | filing ↗ |