BBNX · Insider trading · 13F holders · Congress trades
Beta Bionics, Inc. (BBNX)
Who is buying and selling BBNX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 13
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $2.4M
- Congress trades, 12 months
- 0
BBNX at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 6 BBNX insiders filed 15 sales worth $2.4M on SEC Form 4, and no open-market purchases; 10 of the sales were pre-planned under Rule 10b5-1.
- 13 13F filers hold BBNX among their 50 largest positions, worth $352.1M combined, including James Flynn. The biggest bets by portfolio weight are Pura Vida Investments, LLC (11.9%), Omega Fund Management, LLC (11.1%) and Sands Capital Alternatives, LLC (9.5%). In their latest 13Fs, 3 managers opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in BBNX.
- BBNX last closed at $17.58 on Oct 29, 2026.
BBNX insider trading
Between Aug 1, 2026 and Oct 29, 2026, 6 BBNX insiders filed 15 sales worth $2.4M on SEC Form 4, and no open-market purchases; 10 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 29, 2026 | Mensinger Mike | Chief Product Officer | Sale10b5-1 | 2,650 | $22.00 | $58K | SEC |
| Oct 28, 2026 | Hopman Mark | Chief Commercial Officer | Sale10b5-1 | 821 | $20.00 | $16K | SEC |
| Oct 16, 2026 | Hopman Mark | Chief Commercial Officer | Sale10b5-1 | 775 | $17.35 | $13K | SEC |
| Oct 5, 2026 | Hopman Mark | Chief Commercial Officer | Sale10b5-1 | 370 | $18.96 | $7K | SEC |
| Sep 23, 2026 | Jones Christy | Director | Sale10b5-1 | 6,430 | $23.00 | $148K | SEC |
| Sep 17, 2026 | Hopman Mark | Chief Commercial Officer | Sale10b5-1 | 30,779 | $20.13 | $620K | SEC |
| Sep 17, 2026 | Mensinger Mike | Chief Product Officer | Sale10b5-1 | 2,650 | $22.00 | $58K | SEC |
| Sep 15, 2026 | Hopman Mark | Chief Commercial Officer | Sale10b5-1 | 775 | $15.52 | $12K | SEC |
| Sep 10, 2026 | Hopman Mark | Chief Commercial Officer | Sale10b5-1 | 36,870 | $18.46 | $681K | SEC |
| Sep 4, 2026 | Saint Sean | President & CEO, Director | Sale10b5-1 | 5,641 | $20.08 | $113K | SEC |
| Sep 3, 2026 | Saint Sean | President & CEO, Director | Sale | 16,867 | $19.11 | $322K | SEC |
| Sep 3, 2026 | Feider Stephen | Chief Financial Officer | Sale | 6,675 | $19.11 | $128K | SEC |
| Sep 3, 2026 | Hopman Mark | Chief Commercial Officer | Sale | 5,327 | $19.11 | $102K | SEC |
| Sep 3, 2026 | Mensinger Mike | Chief Product Officer | Sale | 4,375 | $19.11 | $84K | SEC |
| Sep 3, 2026 | Russell Steven Jon | Chief Medical Officer | Sale | 4,221 | $19.11 | $81K | SEC |
Who owns BBNX? Hedge funds and superinvestors
13 13F filers hold BBNX among their 50 largest positions, worth $352.1M combined, including James Flynn. The biggest bets by portfolio weight are Pura Vida Investments, LLC (11.9%), Omega Fund Management, LLC (11.1%) and Sands Capital Alternatives, LLC (9.5%). In their latest 13Fs, 3 managers opened a new position and 2 added to one.
Superinvestors holding BBNX: James Flynn 0.3%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Eventide Asset Management, LLCMutual fund manager | 1.3% | $98.1M | 6,253,673 | +5.2% shares | Q2 2026 |
| Soleus Capital Management, L.P.Hedge fund | 2.4% | $68.8M | 4,393,714 | +0.9% shares | Q2 2026 |
| Sands Capital Alternatives, LLCHedge fund | 9.5% | $58.1M | 3,708,043 | +0.0% shares | Q2 2026 |
| Vestal Point Capital, LPHedge fund | 0.6% | $25.1M | 1,600,000 | -27.7% shares | Q2 2026 |
| James FlynnHedge fund | 0.3% | $20.7M | 1,324,000 | — | Q2 2026 |
| Omega Fund Management, LLCHedge fund | 11.1% | $20.6M | 1,316,183 | +0.0% shares | Q2 2026 |
| Eversept Partners, LPHedge fund | 1.1% | $19.6M | 1,249,441 | -11.7% shares | Q2 2026 |
| Divisadero Street Capital Management, LPHedge fund | 0.4% | $17.5M | 1,113,802 | — | Q2 2026 |
| Bruce & Co., Inc.Mutual fund manager | 2.8% | $10.4M | 665,700 | +20.9% shares | Q2 2026 |
| Tri Locum Partners LPHedge fund | 1.0% | $7.7M | 493,344 | New | Q2 2026 |
| Pura Vida Investments, LLCHedge fund | 11.9% | $4.4M | 281,164 | -0.0% shares | Q2 2026 |
| Archon Capital Management LLCHedge fund | 0.3% | $844K | 53,873 | New | Q2 2026 |
| Intrepid Family Office LLCFamily office | 0.2% | $235K | 15,000 | New | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 13). Screen BBNX in the grand portfolio →
BBNX stock trades by members of Congress
No member of Congress has disclosed a trade in BBNX.
BBNX questions and answers
Are insiders buying BBNX stock?
Between Aug 1, 2026 and Oct 29, 2026, 6 BBNX insiders filed 15 sales worth $2.4M on SEC Form 4, and no open-market purchases; 10 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own BBNX?
13 13F filers hold BBNX among their 50 largest positions, worth $352.1M combined, including James Flynn. The biggest bets by portfolio weight are Pura Vida Investments, LLC (11.9%), Omega Fund Management, LLC (11.1%) and Sands Capital Alternatives, LLC (9.5%). In their latest 13Fs, 3 managers opened a new position and 2 added to one.
Has Congress traded BBNX?
No member of Congress has disclosed a trade in BBNX.
Who is the largest holder of BBNX?
Among 13F filers, Eventide Asset Management, LLC reports the largest BBNX position, $98.1M (6,253,673 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Pura Vida Investments, LLC's: 11.9% of its portfolio.
Cite or share this
Free to use with a link back. The data updates every filing day.