Davis Timothy E JR sold $104K of SIBN
Davis Timothy E JR sold 7,280 shares of SI-BONE, Inc. (SIBN) at an average of $14.31 ($14.14–$14.47, $0.10M total) across 2 trades over 2026-05-28 to 2026-05-29.
How this was made
The 30-second read
Why it matters
The director's sale reduces his ownership stake, which may be read as a modest negative signal, potentially prompting short‑term selling pressure.
Market read
While the transaction is modest, insider sales are monitored by traders; the news could trigger slight bearish sentiment.
What to watch
No 10b5‑1 plan and the director remains a sizable shareholder, mitigating downside risk.
Background
SEC Form 4 filing discloses insider transactions; such filings are primary sources for insider activity.
Ticker impact
Director Timothy Davis sold 7,280 shares for $104,186, reducing his stake to 65,722 shares.
likely downward pressure as investors price in the insider sell
Director sales, even modest, are often interpreted as a negative signal by the market.
Market effects
Minimal impact on the orthopedics device sector; the sale is company‑specific.
No broader regional effect.
Limited to investors tracking SIBN.
Counterpoint
The sale size is small relative to holdings; could be routine liquidity need, not a red flag.
Key entities
- CompanySI‑BONE, Inc.
Medical device manufacturer specializing in orthopedic implants.
- IndividualTimothy E. Davis Jr.
Director of SI‑BONE who sold shares.

