Butterfly Network, Inc.
Butterfly Network, Inc. (BFLY) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BFLY · as of Mar 31, 2025
Ownership Breakdown
217
Institutional Holders
▲ 34 vs Q4
$233.18M
Total Inst. Value
▲ $6.08M vs Q4
261.64M
Shares Outstanding
freeFloat 73.48%
102.27M
13F Shares Held
▲ 29.48M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
BFLY largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FOSUN INTERNATIONAL LTD x-ray apparatus & tubes & related irradiation apparatus | 10.72M | 4.56% | 4.56% | $24.43B | May 14, 2025 | — held |
GLENVIEW CAPITAL MANAGEMENT, LLC x-ray apparatus & tubes & related irradiation apparatus | 9.96M | 4.24% | 4.24% | $22.70B | May 15, 2025 | — held |
VANGUARD GROUP INC x-ray apparatus & tubes & related irradiation apparatus | 8.60M | 3.66% | 3.66% | $19.61B | May 9, 2025 | ▲ 1.16M |
CAPITAL WORLD INVESTORS x-ray apparatus & tubes & related irradiation apparatus | 8.49M | 3.61% | 3.61% | $19.35B | May 12, 2025 | ▲ 7.13M |
ARK INVESTMENT MANAGEMENT LLC x-ray apparatus & tubes & related irradiation apparatus | 7.02M | 2.99% | 2.99% | $16.01B | May 7, 2025 | ▲ 1.01M |
FIRST LIGHT ASSET MANAGEMENT, LLC x-ray apparatus & tubes & related irradiation apparatus | 5.51M | 2.34% | 2.34% | $12.55B | May 15, 2025 | ▲ 1.51M |
HOOD RIVER CAPITAL MANAGEMENT LLC x-ray apparatus & tubes & related irradiation apparatus | 4.95M | 2.11% | 2.11% | $11.29B | May 15, 2025 | NEW |
BLACKROCK, INC. x-ray apparatus & tubes & related irradiation apparatus | 3.91M | 1.67% | 1.67% | $8.92B | May 2, 2025 | ▲ 396.9K |
MILLENNIUM MANAGEMENT LLC x-ray apparatus & tubes & related irradiation apparatus | 3.78M | 1.61% | 1.61% | $8.63B | May 15, 2025 | ▲ 1.62M |
STATE STREET CORP x-ray apparatus & tubes & related irradiation apparatus | 3.55M | 1.51% | 1.51% | $8.09B | May 15, 2025 | ▲ 890.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
27
Increased
+20.11M shares10
New Positions
first time holders10
Decreased
−3.94M shares0
Sold Out
fully exitedNet shares change (top 50)
+16.17M
+20.11M / −3.94M
Net new holders
+27
10 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
BFLY insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
4
Sell transactions
0.25
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Caezza Nicholas Deputy General Counsel | Jun 2, 2026 | Sale | 1,733 | $4.52 | $7.8K | 310.3K | Form 4 ↗ |
Neubauer Caroll H director | May 19, 2026 | Award | 73,170 | — | — | 73.2K | Form 4 ↗ |
Carlson Megan CAO and SVP, Finance | May 1, 2026 | Sale | 110,422 | $4.75 | $524.4K | 507.2K | Form 4 ↗ |
Cashman Steve Chief Business Officer | Apr 29, 2026 | Sale | 147,518 | $4.91 | $724.2K | 2.03M | Form 4 ↗ |
Cashman Steve Chief Business Officer | Apr 16, 2026 | Sale | 200,000 | $5.22 | $1.04M | 2.18M | Form 4 ↗ |
DEVIVO JOSEPH President & CEO | Mar 5, 2026 | Sale | 482,149 | $3.71 | $1.79M | 8.03M | Form 4 ↗ |
Doherty John N. EVP, CFO | Mar 2, 2026 | Award | 274,953 | — | — | 1.51M | Form 4 ↗ |
Ku Victor Chief Technology Officer | Mar 2, 2026 | Award | 287,326 | — | — | 1.10M | Form 4 ↗ |
Cashman Steve Chief Business Officer | Mar 2, 2026 | Award | 488,042 | — | — | 2.42M | Form 4 ↗ |
Cashman Steve Chief Business Officer | Mar 3, 2026 | Sale | 42,540 | $3.71 | $157.9K | 2.38M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Butterfly Network, Inc. (BFLY) is primarily owned by institutional investors, who hold approximately 39.1% of total shares outstanding. Company insiders own approximately 26.52%, while retail and public investors account for the remaining 34.39%.
The largest institutional shareholder of Butterfly Network, Inc. is FOSUN INTERNATIONAL LTD, holding approximately 10.72 million shares — equal to 4.56% of outstanding shares — as of March 31, 2025.
A total of 217 institutional investors currently hold BFLY stock, with a combined institutional value of approximately $233,184,310 as of the most recent 13F filing period.
Frequently asked questions
BFLY ownershipButterfly Network, Inc. (BFLY) is primarily owned by institutional investors, who hold approximately 39.1% of shares. The largest shareholder is FOSUN INTERNATIONAL LTD with a 4.56% stake. Company insiders hold 26.52%. Data sourced from SEC Form 13F as of March 31, 2025.