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Insider Trading Intelligence
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SF

Stephen Feider

BBNX
CHIEF FINANCIAL OFFICER · BETA BIONICS, INC. · CIK 0002048588
FILING MIX · LIFETIME39%/61%
BUYS
20
SELLS
31
TOTAL VALUE
$2.34M
COMPANIES
1
ACTIVE SINCE
Jan 2025
HOLDINGS NOW
170,827
AVG SELL PX
$20.88
TRADE KIND
SHOWING 51 / 51
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
15 backtested trades · 8 horizons · 28 pending
Forward-return performance of every backtestable P/S trade by Stephen Feider, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d15+26.67%+4.98%+0.43%+4.55%+2.68%—
14d15+33.33%+1.75%+0.65%+1.11%+2.38%—
30d15+40.00%+4.71%+2.57%+2.15%+4.90%—
60d15+40.00%+8.33%+3.34%+4.99%+19.02%—
90d15+20.00%+22.07%+3.93%+19.95%+34.98%—
180d15(1 pending)+78.57%-19.50%+5.36%-21.95%-45.76%—
1y15(12 pending)+100.00%-31.46%————
2y15(15 pending)——————
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
BBNX · 170,827 shares · as of Jun 29, 2026
046,55193,102139,652186,2032026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2025
2025
2025
2025
2026
2026
FLOW · 20 buys / 31 sellsCOVERAGE · 6 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
4,896$5.10$25.0K170,827Jun 29, 2026Jun 30, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
4,896$5.10$25.0K170,949Jun 29, 2026Jul 2, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
4,896$17.03$83.4K165,931Jun 29, 2026Jun 30, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
4,896$17.03$83.4K166,053Jun 29, 2026Jul 2, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
4,896——39,817Jun 29, 2026Jun 30, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
4,896——39,695Jun 29, 2026Jul 2, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
4,982$5.10$25.4K171,035Jun 26, 2026Jun 30, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
4,982——44,713Jun 26, 2026Jun 30, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
5,104$17.05$87.0K165,931Jun 26, 2026Jun 30, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
5,104$17.05$87.0K166,053Jun 26, 2026Jul 2, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
5,104——44,591Jun 26, 2026Jul 2, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
5,104$5.10$26.0K171,157Jun 26, 2026Jul 2, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
6,676$12.61$84.2K166,053Jun 2, 2026Jun 3, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
1,428$12.36$17.7K172,729Mar 2, 2026Mar 3, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
131,543——174,157Feb 27, 2026Mar 3, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
70,831——70,831Feb 27, 2026Mar 3, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
110,342——110,342Feb 27, 2026Mar 13, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
20,000$29.53$590.7K42,614Jan 2, 2026Jan 5, 2026 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
20,000$5.10$102.0K62,614Jan 2, 2026Jan 5, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
20,000——49,695Jan 2, 2026Jan 5, 2026 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
1,427$29.34$41.9K42,614Dec 2, 2025Dec 4, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
1,154$22.28$25.7K44,041Oct 3, 2025Oct 7, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
3,828$21.52$82.4K45,195Oct 3, 2025Oct 7, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
4,982$5.10$25.4K49,023Oct 3, 2025Oct 7, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
4,982——69,695Oct 3, 2025Oct 7, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
15,018$5.10$76.6K59,059Oct 1, 2025Oct 2, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
100$21.08$2.1K44,041Oct 1, 2025Oct 2, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
14,918$20.76$309.7K44,141Oct 1, 2025Oct 2, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
15,018——74,677Oct 1, 2025Oct 2, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
9,900——89,695Sep 8, 2025Sep 9, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
9,900$5.10$50.5K53,941Sep 8, 2025Sep 9, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
9,900$21.13$209.2K44,041Sep 8, 2025Sep 9, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
100$21.00$2.1K44,041Sep 5, 2025Sep 8, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
100$5.10$51044,141Sep 5, 2025Sep 8, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
100——99,595Sep 5, 2025Sep 8, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
1,462$18.86$27.6K44,041Sep 2, 2025Sep 3, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
4,413$17.01$75.1K45,503Aug 22, 2025Aug 26, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
4,413$5.10$22.5K49,916Aug 22, 2025Aug 26, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
4,413——99,695Aug 22, 2025Aug 26, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
5,587——104,108Aug 19, 2025Aug 20, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE10b5-1
10b5-1 plan
5,587$17.03$95.2K45,503Aug 19, 2025Aug 20, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASE
Chief Financial Officer
5,587$5.10$28.5K51,090Aug 19, 2025Aug 20, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
410$17.03$7.0K46,590Jun 2, 2025Jun 4, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
951$18.15$17.3K45,639Jun 2, 2025Jun 4, 2025 ↗View →
BBNX
BETA BIONICS, INC.
SALE
Chief Financial Officer
136$18.69$2.5K45,503Jun 2, 2025Jun 4, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
71,000——71,000Feb 27, 2025Mar 3, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
47,000——47,000Feb 27, 2025Mar 3, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
186,203——186,203Jan 31, 2025Feb 3, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
109,695——109,695Jan 31, 2025Feb 3, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
166,542——166,542Jan 31, 2025Feb 3, 2025 ↗View →
BBNX
BETA BIONICS, INC.
PURCHASEGRANT
Stock grant
186,203——186,203Jan 29, 2025Jan 31, 2025 ↗View →
Other insiders · BBNX
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About this filer
CIK 0002048588
ROLE
Chief Financial Officer
PRIMARY
BBNX
COMPANIES
1
ACTIVE SINCE
Jan 2025
MARKETPEEL · /INSIDER/0002048588DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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