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 ($220.0k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $2.00. Options: 6 managers hold calls ($1.2m notional), 6 hold puts ($985.6k).
Trends to Q2 2025
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 |
| Q4 2024 | 174 |
| Q1 2025 | 208 |
| Q2 2025 | 190 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 76 | 66 |
| Q4 2023 | 66 | 91 |
| Q1 2024 | 56 | 94 |
| Q2 2024 | 63 | 86 |
| Q3 2024 | 50 | 85 |
| Q4 2024 | 87 | 58 |
| Q1 2025 | 125 | 61 |
| Q2 2025 | 108 | 89 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $1.5m | $607.2k | 0.41 |
| Q4 2024 | $5.3m | $1.6m | 0.30 |
| Q1 2025 | $2.0m | $1.5m | 0.71 |
| Q2 2025 | $1.2m | $985.6k | 0.80 |
Biggest buyers
| BlackRock, Inc. | Added | +10.1m |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +2.3m |
| VANGUARD GROUP INC | Added | +2.0m |
| STATE STREET CORP | Added | +1.6m |
| MORGAN STANLEY | Added | +1.5m |
| NORTHERN TRUST CORP | Added | +1.2m |
| DIMENSIONAL FUND ADVISORS LP | Added | +1.1m |
| ROYAL BANK OF CANADA | Added | +804.0k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +714.8k |
| CITADEL ADVISORS LLC | Added | +675.2k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.6m |
| LORD, ABBETT & CO. LLC | Sold out | -1.4m |
| MARSHALL WACE, LLP | Sold out | -1.2m |
| AWM Investment Company, Inc. | Sold out | -1.0m |
| D. E. Shaw & Co., Inc. | Sold out | -630.5k |
| GOLDMAN SACHS GROUP INC | Reduced | -619.1k |
| ARK Investment Management LLC | Reduced | -607.7k |
| Qube Research & Technologies Ltd | Reduced | -516.8k |
| Maven Securities LTD | Sold out | -500.0k |
| Squarepoint Ops LLC | Sold out | -494.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $813.0k406.5k shares |
| CITADEL ADVISORS LLC | Reduced | $231.4k115.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $95.0k47.7k shares |
| GROUP ONE TRADING LLC | Reduced | $68.4k34.2k shares |
| Walleye Trading LLC | Reduced | $26.4k13.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $376.4k188.2k shares |
| CITADEL ADVISORS LLC | Added | $360.0k180.0k shares |
| GROUP ONE TRADING LLC | Added | $119.4k59.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $96.0k48.4k shares |
| JANE STREET GROUP, LLC | New | $33.8k16.9k 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 Q2 2025
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 |
|---|---|---|---|---|---|
| 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 | — |
| Q4 2024 | 0 | — | 3 | $650.9k | — |
| Q1 2025 | 0 | — | 1 | $9.0k | — |
| Q2 2025 | 0 | — | 3 | $929.2k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-05-05 | Getz Heather C EVP, CFO & COO | Sold | $144.0k65.5k shares |
| 2025-04-25 | DEVIVO JOSEPH President & CEO, director | Sold | $781.3k320.2k shares |
| 2025-04-01 | Stoica Andrei G Chief Technology Officer | Sold | $3.9k1.8k 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, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 14.0m $28.1m | Added +10.1m |
| Fosun International Ltd 5.96% of their portfolio | 10.7m $21.4m | Unchanged |
| VANGUARD GROUP INC 0.00% of their portfolio | 10.6m $21.2m | Added +2.0m |
| GLENVIEW CAPITAL MANAGEMENT, LLC 0.57% of their portfolio | 10.0m $19.9m | Unchanged |
| Capital World Investors 0.00% of their portfolio | 8.5m $17.0m | Unchanged |
| ARK Investment Management LLC 0.09% of their portfolio | 6.4m $12.8m | Reduced -607.7k |
| First Light Asset Management, LLC 1.42% of their portfolio | 5.5m $10.9m | Reduced -40.6k |
| Hood River Capital Management LLC 0.14% of their portfolio | 5.1m $10.3m | Added +176.5k |
| STATE STREET CORP 0.00% of their portfolio | 5.1m $10.2m | Added +1.6m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 4.3m $8.7m | Added +2.3m |
| MORGAN STANLEY 0.00% of their portfolio | 3.3m $6.6m | Added +1.5m |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 2.7m $5.4m | Added +675.2k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 2.3m $4.6m | Added +714.8k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 2.2m $4.4m | Reduced -1.6m |
| Ophir Asset Management Pty Ltd 0.55% of their portfolio | 1.9m $3.5m | Reduced -92.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.5m $3.1m | Added +1.2m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 1.5m $3.1m | Added +532.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 1.2m $2.4m | Added +111.7k |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 1.1m $2.3m | Reduced -318.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 1.1m $2.3m | Added +1.1m |
| SEI INVESTMENTS CO 0.00% of their portfolio | 1.1m $2.2m | Added +70.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 938.6k $1.9m | Added +458.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 831.3k $1.7m | Added +804.0k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 771.1k $1.5m | Added +59.7k |
| ISTHMUS PARTNERS, LLC 0.16% of their portfolio | 689.2k $1.4m | Unchanged |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 557.2k $1.1m | Reduced -516.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 505.8k $1.0m | Added +89.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 475.0k $950.0k | Added +357.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 455.4k $910.8k | Added +270.4k |
| Nuveen, LLC 0.00% of their portfolio | 427.7k $855.3k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 409.5k $818.9k | Added +389.3k |
| GSA CAPITAL PARTNERS LLP 0.06% of their portfolio | 407.8k $816.0k | Reduced -36.8k |
| Huntleigh Advisors, Inc. 0.15% of their portfolio | 395.6k $791.2k | Added +14.9k |
| UBS Group AG 0.00% of their portfolio | 394.4k $788.8k | Added +119.8k |
| BARCLAYS PLC 0.00% of their portfolio | 372.0k $744.0k | Added +247.2k |
| OPPENHEIMER & CO INC 0.01% of their portfolio | 346.5k $693.0k | Added +36.9k |
| Engineers Gate Manager LP 0.01% of their portfolio | 339.7k $679.4k | Reduced -25.5k |
| Swiss National Bank 0.00% of their portfolio | 331.0k $662.0k | Added +59.8k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 324.4k $648.8k | Added +311.0k |
| PERKINS CAPITAL MANAGEMENT INC 0.59% of their portfolio | 295.3k $590.5k | Added +20.3k |
| DNB Asset Management AS 0.00% of their portfolio | 281.7k $563.4k | Added +166.7k |
| XTX Topco Ltd 0.02% of their portfolio | 257.3k $514.6k | Added +176.0k |
| Graham Capital Management, L.P. 0.01% of their portfolio | 238.8k $477.6k | Added +106.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 237.4k $474.8k | New |
| Invesco Ltd. 0.00% of their portfolio | 224.6k $449.1k | Added +187.5k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 209.5k $419.0k | Reduced -485.5k |
| Legal & General Group Plc 0.00% of their portfolio | 207.0k $414.0k | Added +119.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 185.3k $370.5k | New |
| Green Alpha Advisors, LLC 0.33% of their portfolio | 175.1k $350.2k | Reduced -11.2k |
| SBI Securities Co., Ltd. 0.01% of their portfolio | 174.2k $348.5k | Reduced -10.4k |
| ALGERT GLOBAL LLC 0.01% of their portfolio | 173.6k $347.2k | Added +105.8k |
| Verition Fund Management LLC 0.00% of their portfolio | 172.4k $344.8k | Reduced -31.4k |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 155.2k $310.4k | Added +22.0k |
| Pathstone Holdings, LLC 0.00% of their portfolio | 153.5k $307.1k | Reduced -9.9k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 151.3k $303.0k | Reduced -3.1k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 144.8k $289.6k | Reduced -360.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 141.5k $283.0k | Added +96.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 137.4k $274.7k | Reduced -619.1k |
| POLEN CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 134.8k $269.6k | New |
| BANTAMAC CAPITAL, LLC 0.10% of their portfolio | 134.8k $269.6k | Added +23.0k |
| WHITE PINE CAPITAL LLC 0.08% of their portfolio | 131.8k $263.6k | Added +3.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 131.6k $263.3k | Added +12.0k |
| LPL Financial LLC 0.00% of their portfolio | 127.5k $255.0k | Reduced -698 |
| EntryPoint Capital, LLC 0.13% of their portfolio | 127.0k $254.0k | Added +79.3k |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.02% of their portfolio | 124.9k $249.9k | Unchanged |
| OP Asset Management Ltd 0.00% of their portfolio | 123.8k $247.6k | New |
| State of Wyoming 0.03% of their portfolio | 120.7k $241.5k | Added +43.2k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 119.6k $239.1k | New |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 118.5k $237.0k | Added +15.0k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 117.5k $235.0k | Reduced -192.4k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 106.9k $213.9k | Added +66.7k |
| CITIGROUP INC 0.00% of their portfolio | 105.2k $210.4k | Added +58.3k |
| Dynamic Advisor Solutions LLC 0.01% of their portfolio | 104.0k $208.0k | Unchanged |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 97.1k $194.2k | New |
| Man Group plc 0.00% of their portfolio | 96.3k $192.6k | Added +16.9k |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.02% of their portfolio | 96.2k $192.5k | Added +38.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 92.0k $184.0k | Added +91.0k |
| Palumbo Wealth Management LLC 0.05% of their portfolio | 86.9k $173.8k | Added +2.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 86.3k $172.6k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 85.8k $171.6k | Reduced -45.2k |
| GROUP ONE TRADING LLC 0.01% of their portfolio | 81.2k $162.5k | Reduced -68.8k |
| Procyon Advisors, LLC 0.01% of their portfolio | 77.4k $154.8k | Reduced -20 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 76.8k $153.6k | Added +40.7k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 70.7k $141.3k | New |
| LEVIN CAPITAL STRATEGIES, L.P. 0.01% of their portfolio | 70.0k $140.0k | Added +10.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 63.0k $126.0k | Reduced -35.0k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 60.8k $121.6k | New |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 60.7k $121.4k | Unchanged |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 53.9k $107.8k | New |
| Seneca Financial Advisors LLC 0.04% of their portfolio | 53.5k $107.1k | Unchanged |
| OneAscent Financial Services LLC 0.01% of their portfolio | 53.4k $107.0k | Added +43.4k |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 50.5k $101.1k | Added +10.4k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 50.5k $101.0k | Added +15.8k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 45.5k $90.9k | New |
| Calamos Advisors LLC 0.00% of their portfolio | 44.8k $89.7k | Reduced -317.7k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 43.7k $87.0k | Added +21.9k |
| FMR LLC 0.00% of their portfolio | 41.5k $83.1k | Reduced -2.2k |
| Rinkey Investments 0.02% of their portfolio | 41.5k $83.0k | Reduced -800 |
| Geneos Wealth Management Inc. 0.00% of their portfolio | 40.7k $81.3k | Reduced -34.0k |
| NorthCoast Asset Management LLC 0.00% of their portfolio | 40.2k $80.5k | Added +4.0k |