Security record · archived quarter
BFLY
Butterfly Network, Inc. · Healthcare · Medical - Devices
92Tracked holders
+7Δ holders
95.54MShares held
$385.81MReported value
+13New positions
−6Exits
Momentum inputs (comparable managers):
holder breadth +8.2% ·
share flow +7.3% ·
net new positions +7.6%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 91 | +3 | 107.33M | $903.18M | +8 | −6 |
| Q1 2026 | 92 | +7 | 95.54M | $385.81M | +13 | −6 |
| Q4 2025 | 84 | +2 | 92.11M | $328.02M | +2 | — |
| Q3 2025 | 16 | -1 | 60.81M | $112.78M | +1 | −2 |
| Q2 2025 | 14 | -2 | 67.72M | $130.72M | — | −2 |
| Q1 2025 | 13 | 0 | 42.33M | $91.17M | — | — |
| Q4 2024 | 13 | +3 | 32.38M | $93.71M | +3 | — |
| Q3 2024 | 9 | -1 | 28.48M | $46.21M | +1 | −2 |
| Q2 2024 | 10 | — | 27.10M | $20.74M | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 15.96M | +6.9% | $64.48M | 0.0% | ▲ Add | 4 | SEC ↗ ×11 |
| 2 | Glenview Capital ✦ | 14.34M | -10.7% | $57.91M | 1.6% | ▼ Trim | 8 | SEC ↗ |
| 3 | Vanguard Capital Management Llc | 8.19M | — | $33.10M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | State Street Global Advisors ✦ (passive) | 5.54M | +3.1% | $22.38M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 5 | ARK Investment Management ✦ | 5.23M | -16.3% | $21.12M | 0.2% | ▼ Trim | 8 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 4.81M | +2.8% | $19.43M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | Bank Of America Corp /De/ | 4.17M | +71.0% | $16.83M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 8 | Nuveen, LLC | 3.75M | +579.2% | $15.15M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 9 | Millennium Management ✦ | 3.49M | +9.9% | $14.09M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 10 | Dimensional Fund Advisors Lp | 2.36M | +30.9% | $9.52M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 11 | Sei Investments Co | 2.30M | +30.6% | $9.29M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 12 | Marshall Wace ✦ | 2.28M | +444.3% | $9.23M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 13 | Deutsche Bank Ag\ | 2.26M | +37.0% | $9.14M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 14 | Jane Street Group, Llc | 1.94M | +123.2% | $7.82M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 15 | Morgan Stanley ✦ | 1.72M | -26.0% | $6.95M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 16 | Charles Schwab Investment… | 1.68M | -5.4% | $6.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Northern Trust Corp | 1.56M | +5.6% | $6.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 18 | UBS Group AG | 1.47M | -32.4% | $5.94M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 19 | D. E. Shaw & Co. ✦ | 1.12M | +41.9% | $4.53M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 20 | Raymond James Financial Inc | 896.73K | +9.0% | $3.62M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 21 | Goldman Sachs Group ✦ | 852.17K | -11.4% | $3.44M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 22 | Two Sigma Investments ✦ | 757.21K | +3605.1% | $3.06M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 23 | JPMorgan Chase ✦ | 719.02K | -5.8% | $2.75M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 24 | Citigroup Inc | 593.87K | +111.7% | $2.40M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 25 | Barclays Plc | 486.10K | +42.6% | $1.96M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 26 | Gotham Asset Management ✦ | 462.15K | +101.9% | $1.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Bank of New York Mellon Corp | 447.60K | -9.7% | $1.81M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 28 | Fidelity (FMR) ✦ | 440.01K | +831.3% | $1.78M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 29 | Tudor Investment Corp Et Al | 431.53K | New | $1.74M | 0.0% | New | 1 | SEC ↗ |
| 30 | Invesco Ltd. | 406.20K | +4.7% | $1.64M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 31 | Swiss National Bank | 401.20K | New | $1.62M | 0.0% | New | 1 | SEC ↗ |
| 32 | Squarepoint Ops LLC | 354.55K | -50.5% | $1.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | UBS AM, a distinct business unit of… | 328.10K | New | $1.33M | 0.0% | New | 1 | SEC ↗ ×2 |
| 34 | Captrust Financial Advisors | 282.10K | -1.6% | $1.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Rhumbline Advisers | 254.34K | +2.2% | $1.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Susquehanna International Group, Llp | 240.48K | +593.6% | $971,523 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 37 | LPL Financial LLC | 234.97K | +4.2% | $949,295 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 38 | Alliancebernstein L.P. | 188.80K | -1.7% | $717,440 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 39 | T. Rowe Price ✦ | 149.54K | +28.5% | $605,000 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 40 | Franklin Resources Inc | 149.70K | +10.7% | $604,775 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 41 | Commonwealth Equity Services, Llc | 146.98K | -5.6% | $593,780 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | American Century Companies Inc | 140.80K | +103.3% | $568,836 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 43 | Legal & General Group Plc | 135.19K | +220.6% | $546,189 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 44 | State Of Wisconsin Investment Board | 129.99K | New | $525,168 | 0.0% | New | 1 | SEC ↗ |
| 45 | Janus Henderson Group Plc | 110.60K | New | $446,271 | 0.0% | New | 1 | SEC ↗ |
| 46 | Russell Investments Group, Ltd. | 104.42K | +62.4% | $421,857 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 47 | Man Group plc | 95.60K | New | $386,216 | 0.0% | New | 1 | SEC ↗ |
| 48 | Group One Trading Llc | 94.47K | New | $381,651 | 0.0% | New | 1 | SEC ↗ |
| 49 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 91.81K | +0.9% | $370,904 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Zurcher Kantonalbank (Zurich… | 83.44K | +31.5% | $337,085 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Osaic Holdings, Inc. | 79.63K | -11.5% | $321,686 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 52 | Blair William & Co/Il | 79.50K | -38.6% | $321,180 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 53 | Wells Fargo & Company/Mn | 78.81K | -65.4% | $318,411 | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 54 | Bank Of Montreal /Can/ | 63.05K | +407.8% | $254,734 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 55 | New York State Common Retirement… | 60.80K | 0.0% | $245,632 | 0.0% | Held | 2 | SEC ↗ |
| 56 | Stifel Financial Corp | 60.63K | +11.2% | $244,937 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 57 | AQR Capital Management ✦ | 60.58K | +208.6% | $244,743 | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 58 | Canada Pension Plan Investment Board | 58.40K | New | $235,936 | 0.0% | New | 1 | SEC ↗ |
| 59 | Manufacturers Life Insurance… | 53.20K | -10.5% | $214,932 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | Bnp Paribas Financial Markets | 51.81K | +13.6% | $209,316 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Creative Planning | 49.34K | +36.5% | $199,338 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Citadel Advisors ✦ | 42.31K | -91.4% | $170,924 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 63 | Pictet Asset Management Holding SA | 35.30K | New | $142,596 | 0.0% | New | 1 | SEC ↗ |
| 64 | Voya Investment Management Llc | 34.76K | -2.4% | $140,410 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Prudential Financial Inc | 30.14K | +85.9% | $121,766 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | ProShare Advisors LLC | 28.40K | -20.7% | $114,744 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Mercer Global Advisors Inc /Adv | 27.67K | +46.2% | $111,771 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | Victory Capital Management Inc | 22.35K | +1.2% | $90,278 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Ameriprise Financial Inc | 21.60K | +2.4% | $87,264 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 70 | HighTower Advisors, LLC | 18.32K | -14.0% | $74,013 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 71 | Quantinno Capital Management LP | 18.11K | New | $73,168 | 0.0% | New | 1 | SEC ↗ |
| 72 | Focus Partners Wealth | 18.09K | -22.7% | $73,077 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 73 | CIBC Bancorp USA Inc. | 17.67K | — | $71,391 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 74 | Wealth Enhancement Advisory… | 17.16K | -63.7% | $70,532 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Royal Bank Of Canada | 17.23K | -40.4% | $70,000 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 76 | Storebrand Asset Management As | 16.16K | -15.4% | $65,290 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Fisher Asset Management ✦ | 15.90K | New | $64,252 | 0.0% | New | 1 | SEC ↗ |
| 78 | Principal Financial Group Inc | 14.25K | +23.9% | $57,558 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Neuberger Berman Group LLC | 14.07K | New | $56,859 | 0.0% | New | 1 | SEC ↗ |
| 80 | Mariner, LLC | 12.01K | +5.2% | $48,524 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Northwestern Mutual Wealth… | 11.50K | -19.6% | $46,460 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 82 | Cetera Investment Advisers | 10.66K | -6.4% | $43,083 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | California State Teachers… | 10.61K | -12.1% | $42,844 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Jones Financial Companies Lllp | 9.07K | -56.3% | $35,547 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Simplex Trading, Llc | 4.45K | -87.5% | $17,957 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Cwm, Llc | 4.40K | +32.6% | $17,764 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | BNP Paribas Asset Management… | 3.70K | New | $14,944 | 0.0% | New | 1 | SEC ↗ |
| 88 | Rockefeller Capital Management L.P. | 3.27K | -80.1% | $13,227 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 89 | Walleye Trading LLC | 3.18K | -48.3% | $12,851 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 90 | Pnc Financial Services Group, Inc. | 2.05K | -0.2% | $8,266 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 91 | TD Waterhouse Canada Inc. | 2.00K | 0.0% | $8,145 | 0.0% | Held | 2 | SEC ↗ |
| 92 | Us Bancorp \De\ | 79 | -59.9% | $319 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Tudor Investment Corp Et Al | $1.74M | 0.0% |
| Swiss National Bank | $1.62M | 0.0% |
| UBS AM, a distinct business… | $1.33M | 0.0% |
| State Of Wisconsin Investment… | $525,168 | 0.0% |
| Janus Henderson Group Plc | $446,271 | 0.0% |
| Man Group plc | $386,216 | 0.0% |
| Group One Trading Llc | $381,651 | 0.0% |
| Canada Pension Plan… | $235,936 | 0.0% |
| Pictet Asset Management… | $142,596 | 0.0% |
| Quantinno Capital Management… | $73,168 | 0.0% |
| Fisher Asset Management | $64,252 | 0.0% |
| Neuberger Berman Group LLC | $56,859 | 0.0% |
Exited
| Hrt Financial Lp | $1.78M | was 0.0% |
| LMR Partners LLP | $57,598 | was 0.0% |
| Mackenzie Financial Corp | $46,245 | was 0.0% |
| Peak6 Llc | $2,030 | was 0.0% |
| National Bank Of Canada /Fi/ | $129 | was 0.0% |
| Healthcare Of Ontario Pension… | $6 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 237 holders, 138.33M shares, $545.92M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Aug 14
Phanstiel S. Louise
Director · 115.20K sh @ 8.68 · $999,510
Open-market sales (S)
Oct 06
DEVIVO JOSEPH
Officer, Director · 35.79K sh · $358,616
Oct 02
Carlson Megan
Officer · 10.11K sh · $88,447
Sep 23
DEVIVO JOSEPH
Officer, Director · 3.17K sh · $31,757
Sep 22
DEVIVO JOSEPH
Officer, Director · 2.81K sh · $28,110
Sep 04
Cashman Steve
Officer · 140.11K sh · $1.02M
Sep 04
Carlson Megan
Officer · 13.80K sh · $100,797
Sep 02
Caezza Nicholas
Officer · 1.71K sh · $13,927
Aug 17
ROBBINS LARRY
Director · 582.50K sh · $5.23M
Aug 14
ROBBINS LARRY
Director · 824.70K sh · $7.17M
Aug 13
ROBBINS LARRY
Director · 500.00K sh · $4.62M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 17
SC 13D/A — GLENVIEW CAPITAL MANAGEMENT, LLC
4.8% of class · View original SEC filing ↗
Aug 17
SC 13D/A — ROTHBERG JONATHAN M
0.3% of class · View original SEC filing ↗
Aug 14
SC 13G — Hood River Capital Management LLC
Aug 07
SC 13G — FMR LLC
Jul 27
SC 13G/A — BlackRock, Inc.
Jul 21
SC 13D/A — ROTHBERG JONATHAN M
0.4% of class · View original SEC filing ↗
Jul 17
SC 13D/A — ROTHBERG JONATHAN M
0.4% of class · View original SEC filing ↗
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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