Feider Stephen Insider Trading Activity
Feider Stephen has been net-selling over the last 12 months with 0 purchases and 12 sales across 1 company.
BBNX is the most-traded position with 12 trades. The largest single transaction was a sale of BBNX for $591K on Jan 2, 2026.
Performance Scorecard
Forward stock performance after each transaction by Feider Stephen. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -4.3% | 40% | 15 |
| 90 days | — | -22.1% | 13% | 15 |
| 120 days | — | -6.9% | 40% | 15 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersBBNX · Beta Bionics, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Mar 2, 2026 | BBNX | Sell | 1,428 | $12.36 | $18K | −0.8% | CFO | |
Jan 2, 2026 | BBNX | Sell | 20,000 | $29.53 | $591K | −31.9% | CFO | |
Dec 2, 2025 | BBNX | Sell | 1,427 | $29.34 | $42K | −3.2% | CFO | |
Oct 3, 2025 | BBNX | Sell | 3,828 | $21.52 | $82K | −7.8% | CFO | |
Oct 3, 2025 | BBNX | Sell | 1,154 | $22.28 | $26K | −2.6% | CFO | |
Oct 1, 2025 | BBNX | Sell | 14,918 | $20.76 | $310K | −25.3% | CFO | |
Oct 1, 2025 | BBNX | Sell | 100 | $21.08 | $2K | −0.2% | CFO | |
Sep 8, 2025 | BBNX | Sell | 9,900 | $21.13 | $209K | −18.4% | CFO | |
Sep 5, 2025 | BBNX | Sell | 100 | $21.00 | $2K | −0.2% | CFO | |
Sep 2, 2025 | BBNX | Sell | 1,462 | $18.86 | $28K | −3.2% | CFO | |
Aug 22, 2025 | BBNX | Sell | 4,413 | $17.01 | $75K | −8.8% | CFO | |
Aug 19, 2025 | BBNX | Sell | 5,587 | $17.03 | $95K | −10.9% | CFO | |
Jun 2, 2025 | BBNX | Sell | 410 | $17.03 | $7K | −0.9% | CFO | |
Jun 2, 2025 | BBNX | Sell | 951 | $18.15 | $17K | −2.0% | CFO | |
Jun 2, 2025 | BBNX | Sell | 136 | $18.69 | $3K | −0.3% | CFO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| BBNX | Beta Bionics, Inc. | 15 | $1.5M |
Other insiders at Beta Bionics, Inc.
6 other tracked filers at BBNX.