Butterfly Network Inc
Ownership
Ownership Structure
Who owns Butterfly Network Inc (BFLY)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 89.8% of the shares are freely tradable; institutional investors hold 55.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 7.07 | 18,821,463 | +17.9 | 06/30/2026 |
| Glenview Capital Management LLC | 5.38 | 14,335,055 | +0.0 | 06/30/2026 |
| Hood River Capital Management LLC | 4.95 | 13,190,130 | +53.0 | 06/30/2026 |
| Fosun International Ltd | 3.84 | 10,234,923 | -4.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.21 | 8,559,346 | +4.5 | 06/30/2026 |
| D. E. Shaw & Co LP | 2.40 | 6,392,827 | +470.6 | 06/30/2026 |
| State Street Corp | 2.16 | 5,762,672 | +4.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Growth Company Fund | 4.21 | 11,212,206 | +41.4 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.50 | 6,655,677 | +11.2 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.13 | 5,678,996 | -1.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Devivo Joseph | President & CEO | 7,221,330 | 49,105,044 $ | Oct 30, 2026 | direct |
| Robbins Larry | Director | 2,964,187 | 20,156,472 $ | Aug 17, 2026 | indirect |
| Cashman Steve | Chief Business Officer | 1,490,295 | 10,134,006 $ | Sep 4, 2026 | direct |
| Doherty John N. | EVP, CFO | 1,397,276 | 9,501,477 $ | Jul 20, 2026 | direct |
| Ku Victor | Chief Technology Officer | 1,015,099 | 6,902,673 $ | Jul 20, 2026 | direct |
| Carlson Megan | CAO and SVP, Finance | 401,971 | 2,733,403 $ | Oct 2, 2026 | direct |
| Caezza Nicholas | Deputy General Counsel | 305,166 | 2,075,129 $ | Sep 2, 2026 | direct |
| Phanstiel S. Louise | Director | 300,461 | 2,043,135 $ | Aug 14, 2026 | indirect |
| Rothberg Jonathan M | Director | 105,881 | 719,991 $ | Jul 16, 2026 | both |
| Noonen Michael | Director | 37,037 | 251,852 $ | Oct 13, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | Devivo Joseph | President & CEO | Sell | 90,600 | 7.01 | 634,925 |
| Oct 13, 2026 | Noonen Michael | Director | Other | 37,037 | 0.00 | – |
| Oct 6, 2026 | Devivo Joseph | President & CEO | Sell | 35,790 | 10.02 | 358,616 |
| Oct 2, 2026 | Carlson Megan | CAO and SVP, Finance | Sell | 10,114 | 8.75 | 88,447 |
| Sep 23, 2026 | Devivo Joseph | President & CEO | Sell | 3,169 | 10.02 | 31,757 |
| Sep 22, 2026 | Devivo Joseph | President & CEO | Sell | 2,811 | 10.00 | 28,110 |
| Sep 4, 2026 | Cashman Steve | Chief Business Officer | Sell | 140,112 | 7.30 | 1,023,098 |
| Sep 4, 2026 | Carlson Megan | CAO and SVP, Finance | Sell | 13,804 | 7.30 | 100,797 |
| Sep 2, 2026 | Caezza Nicholas | Deputy General Counsel | Sell | 1,709 | 8.15 | 13,927 |
| Aug 24, 2026 | Devivo Joseph | President & CEO | Other | 250,000 | 0.00 | – |
| Aug 17, 2026 | Robbins Larry | Director | Sell | 582,500 | 8.97 | 5,225,142 |
| Aug 14, 2026 | Phanstiel S. Louise | Director | Buy | 115,200 | 8.68 | 999,510 |
| Aug 14, 2026 | Robbins Larry | Director | Sell | 824,700 | 8.70 | 7,172,663 |
| Aug 13, 2026 | Robbins Larry | Director | Sell | 175,300 | 8.86 | 1,553,228 |
| Aug 13, 2026 | Robbins Larry | Director | Sell | 500,000 | 9.24 | 4,617,750 |
| Aug 13, 2026 | Robbins Larry | Director | Sell | 215,233 | 9.54 | 2,053,710 |
| Aug 11, 2026 | Caezza Nicholas | Deputy General Counsel | Sell | 10,000 | 9.75 | 97,500 |
| Aug 10, 2026 | Devivo Joseph | President & CEO | Sell | 68,346 | 10.01 | 684,075 |
| Aug 3, 2026 | Robbins Larry | Director | Sell | 156,163 | 8.10 | 1,265,670 |
| Jul 31, 2026 | Carlson Megan | CAO and SVP, Finance | Sell | 68,852 | 7.86 | 541,383 |
| Jul 31, 2026 | Robbins Larry | Director | Sell | 1,720,129 | 7.39 | 12,716,054 |
| Jul 22, 2026 | Rothberg Jonathan M | Director | Sell | 36,366 | 6.47 | 235,281 |
| Jul 22, 2026 | Rothberg Jonathan M | Director | Sell | 496,680 | 6.47 | 3,213,420 |
| Jul 22, 2026 | Rothberg Jonathan M | Director | Sell | 72,724 | 6.47 | 470,510 |
| Jul 22, 2026 | Rothberg Jonathan M | Director | Sell | 54,143 | 6.47 | 350,294 |
| Jul 21, 2026 | Rothberg Jonathan M | Director | Sell | 753,320 | 6.74 | 5,074,288 |
| Jul 20, 2026 | Ku Victor | Chief Technology Officer | Sell | 48,540 | 6.56 | 318,422 |
| Jul 20, 2026 | Doherty John N. | EVP, CFO | Sell | 57,136 | 6.56 | 374,812 |
| Jul 20, 2026 | Devivo Joseph | President & CEO | Sell | 211,798 | 6.56 | 1,389,395 |
| Jul 20, 2026 | Rothberg Jonathan M | Director | Sell | 1,177,276 | 6.61 | 7,786,268 |
| Jul 17, 2026 | Rothberg Jonathan M | Director | Sell | 1,195,857 | 6.60 | 7,887,753 |
| Jul 16, 2026 | Rothberg Jonathan M | Director | Sell | 1,213,634 | 7.09 | 8,603,330 |
| Jul 16, 2026 | Rothberg Jonathan M | Director | Sell | 253,867 | 7.09 | 1,799,638 |
| Jul 15, 2026 | Rothberg Jonathan M | Director | Sell | 1,730,319 | 7.32 | 12,670,780 |
| Jul 14, 2026 | Rothberg Jonathan M | Director | Sell | 815,632 | 7.72 | 6,294,885 |
| Jul 7, 2026 | Ku Victor | Chief Technology Officer | Sell | 35,649 | 7.87 | 280,665 |
| Jul 7, 2026 | Doherty John N. | EVP, CFO | Sell | 55,229 | 7.87 | 434,818 |
| Jul 7, 2026 | Devivo Joseph | President & CEO | Sell | 204,725 | 7.87 | 1,611,800 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 4, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.