SecBot SecBot
144 ·Filed Oct 29, 2026

SIBN

SI-BONE, Inc.
NEUTRAL
Impact 2/10
Horizondays Processed7d 4h ago SEC0001950047-26-010477
Form 144: notice of proposed sale of securities
Actionable Insight • Neutral

The proposed sale is small relative to market cap and follows a pattern of routine 10b5-1 plan sales by the officer after RSU vesting. Monitor for any acceleration in insider selling volume or changes in the 10b5-1 plan that could signal a shift in management's outlook.

DirectionNeutral
Confidencehigh
Horizondays

How the stock moved after the report

⚠ Clustered NEUTRAL VIEWSTOCK BELOW ENTRY AT T+1
Entry
$21.23
T+0 close · Oct 29, 2026 · via day close
Latest settled
−4.76%
T+1 · $20.22
vs SPY
−4.28%
α at T+1
Next horizon
T+5
due 13h ago
  1. T+0 · Oct 29 $21.23entry
  2. T+1 · 7d ago −4.76%α −4.28% · $20.22
  3. T+5 · due 13h ago Pending
  4. T+5 · todayOpen
  5. T+20 · in 21d Pending
  6. T+60 · in 3mo Pending

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Executive Summary

Anshul Maheshwari, an officer of SI-BONE, Inc., filed a Form 144 notice of intent to sell 3,738 shares of common stock, valued at approximately $81,601, on October 29, 2026. The shares were acquired through vesting of restricted stock units, and the filing is part of a series of recent insider sales under a 10b5-1 plan, with prior sales totaling over $750,000 since August 2026.

Key Facts

  • Filer: Anshul Maheshwari, an officer of SI-BONE, Inc.
  • Proposed sale: 3,738 shares of common stock, valued at $81,600.54
  • Shares acquired via vesting of restricted stock units from 04/01/2026 through 10/01/2026
  • Sale intended on or about 10/29/2026 on NASDAQ
  • Prior 10b5-1 sales by Maheshwari in 2026: 1,731 shares on 10/05/2026 ($33,755), 3,318 shares on 10/02/2026 ($60,325), 11,636 shares on 08/24/2026 ($233,972), 11,228 shares on 08/21/2026 ($224,792), 5,747 shares on 08/19/2026 ($112,336), 4,665 shares on 08/17/2026 ($87,016)
  • Total prior sales by Maheshwari in the filing: approximately $752,195
  • Market cap of SIBN: $961M; proposed sale represents ~0.0085% of market cap
  • Recent insider activity (30 days): 8 sells totaling $1.3M

Financial Impact

Proposed sale of $81,601, representing ~0.0085% of SIBN's $961M market cap

dilutioninsider ownership

Risk Factors

  • Form 144 is an intent to sell; the sale may not be executed
  • Insider selling is routine and plan-based, but continued selling could weigh on sentiment
  • No material financial data or guidance in the filing to assess company performance

Market Snapshot

Exchange
Nasdaq
Sector
Surgical & Medical Instruments & Apparatus
Analyst Consensus
93% bullish (15 analysts)

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001950047-26-010477
Document: 0001950047-26-010477-index.html0001950047-26-010477
Document: 0001950047-26-010477.txt0001950047-26-010477
23 reports for SIBN
Performance horizon
100% Hit rate @ T+20 4 of 4 bullish or bearish reports Went positive at some point 5 of 5 best @ T+60▲ +30.50%May 11, 2026
Filters
Rows
Reports for SIBN, sortable and filterable
TypeNow
Nov 4, 2026
1d ago
Insider Cluster
NEUTRAL ★ 3/10
$24.00awaiting T+20awaiting T+20$24.27 (+1.13%)
Nov 4, 2026
1d ago
144
NEUTRAL ★ 2/10
$24.00awaiting T+20awaiting T+20$24.27 (+1.13%)
Nov 4, 2026
1d ago
144
NEUTRAL ★ 3/10
$24.00awaiting T+20awaiting T+20$24.27 (+1.13%)
Nov 4, 2026
1d ago
144
NEUTRAL ★ 3/10
$24.00awaiting T+20awaiting T+20$24.27 (+1.13%)
Nov 2, 2026
3d ago
Insider Cluster
NEUTRAL ★ 3/10
$23.77awaiting T+20awaiting T+20$24.27 (+2.10%)
Nov 2, 2026
3d ago
8-K
BULLISH ★ 6/10
No priceawaiting T+20awaiting T+20No price
Nov 2, 2026
3d ago
Press Release
BULLISH ★ 6/10
$23.77awaiting T+20awaiting T+20$24.27 (+2.10%)
Oct 29, 2026
7d ago
144
NEUTRAL ★ 3/10
$21.23awaiting T+20awaiting T+20$24.27 (+14.32%)
Oct 29, 2026
7d ago
144
NEUTRAL ★ 2/10
$21.23awaiting T+20awaiting T+20$24.27 (+14.32%)
Oct 19, 2026
17d ago
Press Release
NEUTRAL ★ 1/10
$20.54awaiting T+20awaiting T+20$24.27 (+18.16%)
Showing 10 of 23

US Market Status

Market Closed · Opens Mon (61h 36m)

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Report published Oct 29, 2026