Hinckley Greg K 4

What Happened

• Greg K. Hinckley, a director of SI-BONE, exercised or converted derivative securities on April 7, 2026, acquiring 3,085 common shares at $5.94 per share for a total cash cost of $18,325. The Form 4 also reports a corresponding 3,085-share derivative disposition at $0.00 (both transactions reported with code M = exercise/conversion of a derivative security). There is no separate open-market sale reported.

Key Details

• Transaction date: 2026-04-07
• Acquisition: 3,085 shares at $5.94 each; total cash paid $18,325 (code M)
• Disposition entry: 3,085 shares at $0.00 (reported as derivative; code M)
• Shares owned after transaction: Not specified in this filing
• Footnotes:
  • F1: Reporting person has 8,675 restricted stock units issuable upon settlement (each RSU = 1 share).
  • F2: Shares held by Greg and Mary Hinckley as Community Property with Right of Survivorship.
  • F3: The option shares vest monthly over three years starting Oct 17, 2018, subject to continued service.
• Filing timeliness: Reported on 2026-04-09 for a 2026-04-07 transaction — within the usual 2-business-day Form 4 reporting window (timely).

Context

• Code M indicates an exercise or conversion of a derivative security (e.g., option exercise). The paired acquisition and $0.00 derivative disposition lines typically reflect conversion/settlement mechanics rather than an open-market sale of shares. No 10b5-1 plan, tax-withholding sale, or open-market sale is indicated in the filing.
• This is an insider acquisition via option exercise (a purchase-type event). The filing is factual; it does not state the insider’s motivation.