Michael A. Pisetsky, SVP, Operations and Administration and Chief Legal Officer of SI-BONE, Inc., filed a Form 4 on November 2, 2026, disclosing the sale of 29,665 shares of common stock on October 29, 2026, pursuant to a Rule 10b5-1 trading plan.

Key Highlights

  • Sale transaction: Pisetsky disposed of 29,665 shares of SI-BONE common stock on October 29, 2026, at a weighted average price of $22.105 per share.
  • Price range: The transaction was executed in multiple trades at prices ranging from $22.00 to $22.29 per share, according to the filing.
  • 10b5-1 plan: The sale was effected pursuant to a Rule 10b5-1 trading plan dated June 13, 2025.
  • Direct holdings after transaction: Following the sale, Pisetsky directly held 164,444 shares, including 124,139 shares issuable on settlement of restricted stock units.
  • Indirect holdings: An additional 76,408 shares are held indirectly through the Michael Pisetsky Sep Prop Tr, reflecting a transfer of shares from the reporting person to that trust.
  • Role: Pisetsky is identified in the filing as SVP, Ops and Adm/Chief Legal Officer of SI-BONE, Inc. (NASDAQ:SIBN).

Pisetsky's October 2026 Share Sale and Resulting Ownership at SI-BONE

According to the Form 4 filed with the SEC on November 2, 2026, Michael A. Pisetsky sold 29,665 shares of SI-BONE, Inc. common stock on October 29, 2026. The filing reports the transaction code as "S" (a sale) and states that the weighted average sale price was $22.105 per share. The shares were disposed of directly, and the filing notes the sale was carried out under a 10b5-1 trading plan Pisetsky adopted on June 13, 2025.

The filing discloses that the transaction was executed across multiple trades, with individual prices ranging from $22.00 to $22.29. Pisetsky undertakes, according to the filing, to provide full information on the number of shares sold at each separate price upon request by the issuer, any security holder, or SEC staff. Following the reported sale, Pisetsky directly beneficially owned 164,444 shares. The filing notes this total includes 124,139 shares issuable upon settlement of restricted stock units, each representing a contingent right to receive one share of the issuer's common stock.

The filing also reflects 76,408 shares held indirectly through the Michael Pisetsky Sep Prop Tr. The filing explains that these indirect holdings reflect a transfer of shares from Pisetsky to that trust. No derivative securities transactions were reported in Table II of the filing.

What Was Disclosed

The Form 4 discloses a single open-market sale of 29,665 SI-BONE common shares by Chief Legal Officer Michael A. Pisetsky on October 29, 2026, executed under a pre-established 10b5-1 plan, with resulting direct and indirect beneficial ownership positions detailed in the filing.