DUNN JEFFREY W sold $418K of SIBN
DUNN JEFFREY W sold 20,000 shares of SI-BONE, Inc. (SIBN) at $20.89 ($0.42M total) on 2026-11-02 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The director's sale reduces his ownership stake, which may be interpreted by investors as a mild negative signal, but the transaction size is relatively small.
Market read
A modest insider sell by a director provides a small, but fresh data point for traders monitoring SI‑BONE.
What to watch
The director may be diversifying holdings; no change in company fundamentals is disclosed.
Background
SEC Form 4 filing discloses insider transactions; such filings are primary sources for insider activity.
Ticker impact
Director Jeff Dunn sold 20,000 shares of SI‑BONE for $417,820 via a 10b5‑1 plan, reducing his stake to 16,057 shares.
likely modest downward pressure as the market prices the insider sell.
A $418K sale by a director is a material insider transaction, but the amount is modest relative to the company's market cap, so impact is limited.
Market effects
Minimal; the sale does not signal broader trends in the orthopedic device sector.
None; the transaction is company‑specific.
Low; no cross‑border or macro implications.
Counterpoint
The sale could be routine portfolio rebalancing and not indicative of company weakness.
Key entities
- companySI‑BONE, Inc.
Medical device company listed on NASDAQ under ticker SIBN.
- personJeff Dunn
Director of SI‑BONE who executed the sale.
