Beta Bionics, Inc.
Beta Bionics, Inc. (BBNX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BBNX · as of Sep 30, 2025
Ownership Breakdown
129
Institutional Holders
▲ 13 vs Q2
$962.62M
Total Inst. Value
▲ $303.48M vs Q2
44.56M
Shares Outstanding
freeFloat 48.73%
48.35M
13F Shares Held
▲ 3.49M vs Q2
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
BBNX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
EVENTIDE ASSET MANAGEMENT, LLC surgical & medical instruments & apparatus | 4.96M | 11.36% | 11.36% | $98.50B | Nov 14, 2025 | ▲ 24.9K |
FARALLON CAPITAL MANAGEMENT LLC surgical & medical instruments & apparatus | 4.31M | 9.89% | 9.89% | $85.72B | Feb 17, 2026 | ▲ 110.0K |
WELLINGTON MANAGEMENT GROUP LLP surgical & medical instruments & apparatus | 3.90M | 8.94% | 8.94% | $77.52B | Nov 14, 2025 | — held |
SOLEUS CAPITAL MANAGEMENT, L.P. surgical & medical instruments & apparatus | 3.87M | 8.87% | 8.87% | $76.90B | Nov 14, 2025 | ▲ 50.0K |
MORGAN STANLEY surgical & medical instruments & apparatus | 3.76M | 8.62% | 8.62% | $74.74B | May 27, 2026 | ▲ 812.2K |
SANDS CAPITAL VENTURES, LLC surgical & medical instruments & apparatus | 3.57M | 8.18% | 8.18% | $70.94B | Nov 13, 2025 | — held |
RTW INVESTMENTS, LP surgical & medical instruments & apparatus | 3.30M | 7.56% | 7.56% | $65.55B | Nov 14, 2025 | — held |
BLACKROCK, INC. surgical & medical instruments & apparatus | 2.78M | 6.37% | 6.37% | $55.27B | Nov 12, 2025 | ▲ 1.92M |
VANGUARD GROUP INC surgical & medical instruments & apparatus | 2.22M | 5.08% | 5.08% | $44.04B | Nov 7, 2025 | ▲ 1.51M |
OMEGA FUND MANAGEMENT, LLC surgical & medical instruments & apparatus | 1.92M | 4.40% | 4.40% | $38.15B | Nov 14, 2025 | ▼ 68.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
28
Increased
+8.24M shares7
New Positions
first time holders11
Decreased
−1.79M shares0
Sold Out
fully exitedNet shares change (top 50)
+6.45M
+8.24M / −1.79M
Net new holders
+24
7 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
BBNX 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.
6
Buy transactions
10
Sell transactions
0.60
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 |
|---|---|---|---|---|---|---|---|
Hopman Mark Chief Commercial Officer | Jun 4, 2026 | Sale | 275 | $12.31 | $3.4K | 130.6K | Form 4 ↗ |
Jones Christy director | Jun 4, 2026 | Sale | 2,811 | $14.00 | $39.4K | 27.4K | Form 4 ↗ |
Mensinger Mike Chief Product Officer | Jun 2, 2026 | Sale | 4,378 | $12.61 | $55.2K | 184.4K | Form 4 ↗ |
Hopman Mark Chief Commercial Officer | Jun 2, 2026 | Sale | 5,329 | $12.61 | $67.2K | 130.9K | Form 4 ↗ |
Russell Steven Jon Chief Medical Officer | Jun 2, 2026 | Sale | 4,222 | $12.61 | $53.2K | 173.8K | Form 4 ↗ |
Feider Stephen Chief Financial Officer | Jun 2, 2026 | Sale | 6,676 | $12.61 | $84.2K | 166.1K | Form 4 ↗ |
Saint Sean President & CEO | Jun 2, 2026 | Sale | 16,872 | $12.61 | $212.7K | 420.9K | Form 4 ↗ |
MICHEL GERARD J director | May 21, 2026 | Award | 16,965 | — | — | 33.5K | Form 4 ↗ |
Jones Christy director | May 21, 2026 | Award | 16,965 | — | — | 30.2K | Form 4 ↗ |
Jones Christy director | May 21, 2026 | Sale | 1,998 | $9.95 | $19.9K | 13.2K | 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
Beta Bionics, Inc. (BBNX) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 51.27%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Beta Bionics, Inc. is EVENTIDE ASSET MANAGEMENT, LLC, holding approximately 4.96 million shares — equal to 11.36% of outstanding shares — as of September 30, 2025.
A total of 129 institutional investors currently hold BBNX stock, with a combined institutional value of approximately $962,618,065 as of the most recent 13F filing period.
Frequently asked questions
BBNX ownershipBeta Bionics, Inc. (BBNX) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is EVENTIDE ASSET MANAGEMENT, LLC with a 11.36% stake. Company insiders hold 51.27%. Data sourced from SEC Form 13F as of September 30, 2025.