BUTTERFLY NETWORK INC BFLY
COM CL A · Common Stock · CUSIP 124155102 · ISIN US1241551027
- SectorHealth care
- IndustryX-Ray Apparatus & Tubes & Related Irradiation Apparatus
- HeadquartersBurlington, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $1.77. Options: 7 managers hold calls ($1.5m notional), 6 hold puts ($607.2k).
Trends to Q3 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 199 |
| Q4 2022 | 198 |
| Q1 2023 | 181 |
| Q2 2023 | 185 |
| Q3 2023 | 186 |
| Q4 2023 | 170 |
| Q1 2024 | 171 |
| Q2 2024 | 169 |
| Q3 2024 | 150 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 92 | 80 |
| Q1 2023 | 60 | 82 |
| Q2 2023 | 90 | 49 |
| Q3 2023 | 76 | 66 |
| Q4 2023 | 66 | 91 |
| Q1 2024 | 56 | 94 |
| Q2 2024 | 63 | 86 |
| Q3 2024 | 50 | 85 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2023 | $832.9k | $308.1k | 0.37 |
| Q1 2024 | $420.8k | $360.0k | 0.86 |
| Q2 2024 | $268.1k | $225.7k | 0.84 |
| Q3 2024 | $1.5m | $607.2k | 0.41 |
Biggest buyers
| GLENVIEW CAPITAL MANAGEMENT, LLC | Added | +1.9m |
| RENAISSANCE TECHNOLOGIES LLC | Added | +1.7m |
| ExodusPoint Capital Management, LP | New | +1.3m |
| D. E. Shaw & Co., Inc. | Added | +737.6k |
| CITADEL ADVISORS LLC | Added | +496.6k |
| CITIGROUP INC | Added | +487.6k |
| MORGAN STANLEY | Added | +295.2k |
| XTX Topco Ltd | Added | +226.8k |
| TWO SIGMA INVESTMENTS, LP | New | +129.6k |
| Cubist Systematic Strategies, LLC | Added | +85.8k |
Biggest sellers
| ARK Investment Management LLC | Reduced | -2.3m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -1.1m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.0m |
| Cetera Investment Advisers | Reduced | -939.9k |
| Schonfeld Strategic Advisors LLC | Reduced | -863.9k |
| NORTHERN TRUST CORP | Reduced | -788.2k |
| Amova Asset Management Americas, Inc. | Sold out | -745.3k |
| Sumitomo Mitsui Trust Group, Inc. | Sold out | -745.3k |
| ZAZOVE ASSOCIATES LLC | Sold out | -555.7k |
| GOLDMAN SACHS GROUP INC | Reduced | -499.6k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $688.2k388.8k shares |
| GROUP ONE TRADING LLC | Added | $269.2k152.1k shares |
| CITADEL ADVISORS LLC | Added | $159.8k90.3k shares |
| SIMPLEX TRADING, LLC | Added | $143.0k81.3k shares |
| GTS SECURITIES LLC | Added | $142.1k80.3k shares |
| BANK OF MONTREAL /CAN/ | Unchanged | $62.4k39.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $333.1k188.2k shares |
| GROUP ONE TRADING LLC | Reduced | $94.5k53.4k shares |
| CITADEL ADVISORS LLC | Added | $91.2k51.5k shares |
| GTS SECURITIES LLC | Added | $64.4k36.4k shares |
| SIMPLEX TRADING, LLC | Added | $24.0k14.1k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
ROTHBERG JONATHAN M
13D · may seek influence
no change · filed 2026-08-17
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented by adding the following: In connection with estate planning, Dr. Rothberg, acting on his own and on behalf of 4C Holdings I, LLC, 4C Holdings II, LLC, 4C Holdings III, LLC, 4C Holdings IV, LLC, and Dr. Bonnie Rothberg, Dr. Rothberg's spouse, entered into a trading plan pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended (the "Plan"), a copy of which is attached hereto as Exhibit 6. Pursuant to the Plan, sales of up to 363,348 shares of Class A common stock and 8,049,929 shares of Class B common stock may be effected during the plan sales period beginning following the cooling-off period contained in Rule 10b5-1(c) and ending on November 12, 2027 in accordance with the terms and conditions of the Plan. … Full filing |
100.0% |
| FMR LLC 13G · institution new · filed 2026-08-07 | 11.8% |
| BlackRock, Inc. 13G · institution +1.5 pts · filed 2026-07-27 | 7.8% |
GLENVIEW CAPITAL MANAGEMENT, LLC
13D · may seek influence
-2.3 pts · filed 2026-08-17
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: On June 22, 2026, Mr. Robbins was granted 25,447 shares of unvested restricted stock units, each representing the right to receive one share of Common Stock upon vesting, which vest in full on the date of the Issuer's 2027 Annual Stockholders Meeting, subject to Mr. Robbins' continued service on the Issuer's board of directors on such date. Full filing |
6.2% |
| Hood River Capital Management LLC 13G · institution new · filed 2026-08-14 | 5.6% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26), Fosun Industrial Co., Ltd (4.7%, 2026-02-05)
Insider purchases and sales in Q3 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2022 | 0 | — | 3 | $87.2k | — |
| Q1 2023 | 0 | — | 2 | $103.6k | — |
| Q2 2023 | 0 | — | 3 | $277.2k | $161.1k |
| Q3 2023 | 1 | $18.1k | 3 | $333.8k | $308.1k |
| Q4 2023 | 0 | — | 1 | $12.2k | — |
| Q1 2024 | 0 | — | 2 | $301.2k | — |
| Q2 2024 | 0 | — | 2 | $72.3k | — |
| Q3 2024 | 2 | $2.0m | 2 | $142.3k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-09-24 | Stoica Andrei G Chief Technology Officer | Sold | $5.7k3.3k shares |
| 2024-09-13 | Phanstiel S. Louise Director · Held by H.G. Phanstiel LP | Sold | $117.7k60.0k shares |
| 2024-09-05 | Stoica Andrei G Chief Technology Officer | Sold | $17.4k10.2k shares |
| 2024-08-30 | ROBBINS LARRY Director · See footnotes | Bought | $261.9k244.8k shares |
| 2024-08-29 | ROBBINS LARRY Director · See footnotes | Bought | $460.0k429.9k shares |
| 2024-08-28 | ROBBINS LARRY Director · See footnotes | Bought | $1.2m1.2m shares |
| 2024-08-07 | DEVIVO JOSEPH President & CEO, director | Bought | $98.8k104.0k shares |
| 2024-07-02 | Stoica Andrei G Chief Technology Officer | Sold | $1.5k1.7k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2024
| Manager | Shares | Change |
|---|---|---|
| Fosun International Ltd 6.24% of their portfolio | 10.7m $19.0m | Unchanged |
| GLENVIEW CAPITAL MANAGEMENT, LLC 0.37% of their portfolio | 10.0m $17.6m | Added +1.9m |
| ARK Investment Management LLC 0.14% of their portfolio | 8.7m $15.4m | Reduced -2.3m |
| VANGUARD GROUP INC 0.00% of their portfolio | 7.3m $13.0m | Added +40.6k |
| BlackRock, Inc. 0.00% of their portfolio | 2.2m $3.8m | First filing |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 2.1m $3.7m | Added +1.7m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.7m $3.0m | Added +65.4k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 1.5m $2.7m | Added +737.6k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 1.3m $2.3m | New |
| Bill & Melinda Gates Foundation 4.11% of their portfolio | 1.0m $1.8m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 955.3k $1.7m | Added +35.8k |
| GSA CAPITAL PARTNERS LLP 0.12% of their portfolio | 925.5k $1.6m | Reduced -347.5k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 925.0k $1.6m | Reduced -1.0m |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 920.9k $1.6m | Reduced -863.9k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 888.1k $1.6m | Added +496.6k |
| ISTHMUS PARTNERS, LLC 0.14% of their portfolio | 689.2k $1.2m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 683.2k $1.2m | Reduced -88.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 675.6k $1.2m | Reduced -499.6k |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 645.1k $1.1m | Reduced -17.9k |
| CITIGROUP INC 0.00% of their portfolio | 506.7k $896.9k | Added +487.6k |
| Neumann Advisory Hong Kong Ltd 0.34% of their portfolio | 474.2k $839.0k | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 438.9k $776.8k | Added +295.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 398.0k $704.5k | Unchanged |
| XTX Topco Ltd 0.05% of their portfolio | 360.4k $637.9k | Added +226.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 328.2k $581.0k | Reduced -788.2k |
| OPPENHEIMER & CO INC 0.01% of their portfolio | 258.9k $458.3k | Added +46.6k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 220.9k $390.9k | Reduced -278.4k |
| Cubist Systematic Strategies, LLC 0.01% of their portfolio | 192.8k $341.3k | Added +85.8k |
| Pathstone Holdings, LLC 0.00% of their portfolio | 161.7k $286.3k | Added +169 |
| Green Alpha Advisors, LLC 0.22% of their portfolio | 160.8k $284.6k | Added +584 |
| LPL Financial LLC 0.00% of their portfolio | 136.8k $242.1k | Reduced -6.0k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 131.9k $233.0k | Added +4.7k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 129.6k $229.3k | New |
| Dynamic Advisor Solutions LLC 0.01% of their portfolio | 115.9k $205.2k | Reduced -109 |
| Point72 Asia (Singapore) Pte. Ltd. 0.04% of their portfolio | 113.2k $200.3k | Reduced -143.8k |
| Aster Capital Management (DIFC) Ltd 0.04% of their portfolio | 105.1k $186.0k | First filing |
| RAYMOND JAMES TRUST N.A. 0.00% of their portfolio | 102.0k $180.5k | Unchanged |
| Quent Capital, LLC 0.02% of their portfolio | 98.0k $173.5k | Added +20.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 89.3k $158.0k | Reduced -1.1m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 83.4k $148.0k | Unchanged |
| Procyon Advisors, LLC 0.01% of their portfolio | 81.9k $144.9k | Added +5.6k |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 79.9k $141.4k | Added +3.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 71.5k $126.5k | Added +37.8k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 71.1k $125.9k | Reduced -11.8k |
| Cetera Investment Advisers 0.00% of their portfolio | 65.2k $115.4k | Reduced -939.9k |
| Raymond James Financial Services Advisors, Inc. 0.00% of their portfolio | 63.6k $112.6k | Reduced -37.6k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 60.3k $106.8k | Reduced -319 |
| LEVIN CAPITAL STRATEGIES, L.P. 0.01% of their portfolio | 60.0k $106.2k | Reduced -95.0k |
| Texas Capital Bank Wealth Management Services Inc 0.01% of their portfolio | 60.0k $106.2k | Reduced -40.0k |
| Squarepoint Ops LLC 0.00% of their portfolio | 57.7k $102.1k | New |
| Cannon Global Investment Management, LLC 0.24% of their portfolio | 56.4k $99.8k | New |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 55.0k $97.3k | Unchanged |
| Seneca Financial Advisors LLC 0.05% of their portfolio | 53.5k $94.7k | Unchanged |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 50.3k $89.1k | Added +10.6k |
| Virtu Financial LLC 0.00% of their portfolio | 49.0k $87.0k | New |
| Rinkey Investments 0.02% of their portfolio | 43.5k $77.1k | Added +4.2k |
| STOREBRAND ASSET MANAGEMENT AS 0.00% of their portfolio | 41.5k $73.5k | Reduced -44.6k |
| 180 WEALTH ADVISORS, LLC 0.01% of their portfolio | 40.3k $71.3k | Reduced -9.6k |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 38.3k $67.8k | New |
| Geneos Wealth Management Inc. 0.00% of their portfolio | 37.3k $66.1k | New |
| FMR LLC 0.00% of their portfolio | 36.0k $63.8k | Reduced -1.8k |
| UBS Group AG 0.00% of their portfolio | 33.6k $59.5k | Reduced -9.0k |
| Guidance Point Advisors, LLC 0.02% of their portfolio | 33.5k $59.4k | Unchanged |
| Verition Fund Management LLC 0.00% of their portfolio | 32.4k $57.3k | New |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 30.8k $55.0k | Reduced -1.3k |
| Spire Wealth Management 0.00% of their portfolio | 29.8k $52.7k | New |
| TWO SIGMA SECURITIES, LLC 0.00% of their portfolio | 29.7k $52.6k | Added +15.3k |
| Brevan Howard Capital Management LP 0.00% of their portfolio | 29.3k $51.9k | Reduced -41.1k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 26.8k $47.5k | Reduced -113 |
| Summit Trail Advisors, LLC 0.00% of their portfolio | 26.8k $47.4k | Unchanged |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 26.5k $46.9k | Reduced -28.0k |
| BARCLAYS PLC 0.00% of their portfolio | 25.1k $44.4k | Added +25.0k |
| NorthCoast Asset Management LLC 0.00% of their portfolio | 25.0k $44.2k | New |
| KESTRA PRIVATE WEALTH SERVICES, LLC 0.00% of their portfolio | 24.9k $44.1k | Added +3.6k |
| Spectrum Planning & Advisory Services Inc. 0.04% of their portfolio | 23.7k $41.9k | Unchanged |
| Catalyst Funds Management Pty Ltd 0.01% of their portfolio | 21.6k $38.2k | Unchanged |
| HARTLINE INVESTMENT CORP/ 0.00% of their portfolio | 21.5k $38.1k | Added +10.0k |
| VALLEY NATIONAL ADVISERS INC 0.01% of their portfolio | 21.1k $37.0k | Unchanged |
| Vanguard Personalized Indexing Management, LLC 0.00% of their portfolio | 20.4k $36.1k | Reduced -303 |
| 49 WEALTH MANAGEMENT, LLC 0.01% of their portfolio | 20.0k $35.3k | Reduced -8.4k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 19.7k $34.9k | Reduced -212 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.00% of their portfolio | 19.2k $34.1k | Added +120 |
| LAZARI CAPITAL MANAGEMENT, INC. 0.01% of their portfolio | 18.7k $33.1k | Reduced -2.5k |
| Creative Planning 0.00% of their portfolio | 18.2k $32.3k | Reduced -1.6k |
| James J. Burns & Company, LLC 0.01% of their portfolio | 16.0k $28.0k | Unchanged |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 15.7k $27.7k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 15.2k $26.8k | Unchanged |
| Chicago Partners Investment Group LLC 0.00% of their portfolio | 15.0k $25.0k | Reduced -163 |
| Private Advisor Group, LLC 0.00% of their portfolio | 14.8k $26.3k | Added +4.8k |
| Jump Financial, LLC 0.00% of their portfolio | 14.2k $25.2k | Reduced -12.8k |
| Sound View Wealth Advisors Group, LLC 0.00% of their portfolio | 13.5k $23.9k | Added +1.0k |
| Core Wealth Partners LLC 0.01% of their portfolio | 13.4k $23.7k | Unchanged |
| Kestra Advisory Services, LLC 0.00% of their portfolio | 13.0k $23.1k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 12.9k $22.8k | Reduced -1.7k |
| Clear Harbor Asset Management, LLC 0.00% of their portfolio | 12.3k $21.8k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 12.2k $21.0k | Reduced -13.1k |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio | 12.0k $21.2k | Unchanged |
| Mariner, LLC 0.00% of their portfolio | 12.0k $21.2k | Reduced -15.0k |
| Palumbo Wealth Management LLC 0.01% of their portfolio | 11.7k $20.7k | New |
| Flagship Private Wealth, LLC 0.01% of their portfolio | 11.7k $20.6k | Unchanged |