DUNN JEFFREY W sold $378K of SIBN
DUNN JEFFREY W sold 20,000 shares of SI-BONE, Inc. (SIBN) at $18.91 ($0.38M total) across 2 trades on 2026-09-01 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The disclosed sale adds a data point for investors monitoring insider sentiment.
Market read
A modest insider sale; limited immediate market impact but useful for sentiment tracking.
What to watch
The director retains 16,057 shares, indicating continued confidence; overall insider ownership remains sizable.
Background
Form 4 filings disclose insider transactions; a 10b5-1 plan allows pre‑scheduled sales.
Ticker impact
Director Jeffrey Dunn sold 20,000 shares for $378,160 via a 10b5-1 plan on 2026-09-01.
Possible modest downside of 1‑2% in the near term.
Sale size is modest relative to market cap, but insider disposition is a bearish indicator.
Market effects
Minimal; limited impact on the broader orthopedic device sector.
None; the filing is company‑specific.
Low; no broader market effect.
Counterpoint
The sale could be routine portfolio rebalancing under a pre‑arranged plan, not a negative signal.
Key entities
- DirectorJeffrey Dunn
Director of SI‑BONE, Inc. who executed the sale.
- CompanySI‑BONE, Inc.
Medical device company specializing in orthopedic implants.