SI-BONE, Inc. officer Anshul Maheshwari filed a Form 144 notice on October 29, 2026, disclosing a proposed sale of 3,738 shares of SI-BONE common stock on NASDAQ, with an aggregate market value of $81,600.54.

Key Highlights

  • Proposed sale: Anshul Maheshwari, an officer of SI-BONE, Inc., notified the SEC of a plan to sell 3,738 shares of common stock with an aggregate market value of $81,600.54.
  • Acquisition source: The shares were acquired through restricted stock units (RSUs) granted by the issuer, with 3,738 units acquired on April 1, 2026.
  • Approximate sale date: The proposed sale is dated October 29, 2026, to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services.
  • Shares outstanding: According to the filing, 44,818,575 shares of SI-BONE common stock were outstanding at the time of the notice.
  • Rule 10b5-1 plan: The filing indicates reliance on a Rule 10b5-1 trading plan adopted on December 17, 2025.
  • Prior three-month sales: The filing discloses six prior sales of SI-BONE common stock by Maheshwari totaling 38,325 shares with gross proceeds of $752,194.64 between August 17, 2026 and October 5, 2026.

Maheshwari's Proposed Sale and Recent Trading Activity at SI-BONE

According to the Form 144 notice filed with the SEC, Anshul Maheshwari, identified as an officer of SI-BONE, Inc. (NASDAQ:SIBN), intends to sell 3,738 shares of the company's common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004. The filing states the shares carry an aggregate market value of $81,600.54 and that the proposed sale date is October 29, 2026.

The filing discloses that the securities to be sold were acquired upon vesting of restricted stock units "during the period of 04/01/2026 through 10/01/2026," with the specific lot of 3,738 shares formally acquired on April 1, 2026 from the issuer, with payment dated April 1, 2026 listed as "N/A." Maheshwari adopted a written Rule 10b5-1 trading plan on December 17, 2025, according to the filing.

The notice also reports six sales of SI-BONE common stock during the preceding three months. Those transactions, listed in the filing, include sales on August 17, 2026 (4,665 shares, $87,015.62), August 19, 2026 (5,747 shares, $112,336.11), August 21, 2026 (11,228 shares, $224,791.78), August 24, 2026 (11,636 shares, $233,971.66), October 2, 2026 (3,318 shares, $60,324.97), and October 5, 2026 (1,731 shares, $33,754.50). Several of those prior sales are labeled as "10b5-1 Sales for ANSHUL MAHESHWARI" in the filing.

What Was Disclosed

A Form 144 notice was filed on October 29, 2026, by SI-BONE officer Anshul Maheshwari, covering a proposed sale of 3,738 shares of SI-BONE common stock at an aggregate market value of $81,600.54, with shares sourced from RSU vesting and a 10b5-1 plan adopted December 17, 2025.