SEC Form 4
SI-BONE, Inc. (SIBN) insider trading
In the 12 months to Oct 24, 2026, 6 SIBN insiders reported open-market sales of $7.7M across 22 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $7.7M
- 22 filings · 6 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 18 of 22
- $6.8M of $7.7M sold (88%)
Who traded SIBN, and when
- Sale
- Sale, pre-arranged (10b5-1)
SIBN daily close from Oct 24, 2025 to Oct 23, 2026, between $11.61 and $21.56, last $21.48. 22 sale and 0 purchase filings by 6 insiders, marked at their filing dates. Jeffrey W. Dunn, Director: sold $3.4M across 6 filings, first filed Nov 13, 2025, last Oct 5, 2026. Laura Francis, Chief Executive Officer: sold $2.6M across 5 filings, first filed Nov 13, 2025, last Oct 14, 2026. Anshul Maheshwari, Chief Financial Officer → Chief Op & Financial Officer: sold $1.1M across 7 filings, first filed Nov 13, 2025, last Oct 6, 2026. Michael A. Pisetsky, SVP, Ops & Adm/Chief Legal Ofr: sold $402.9K across 2 filings, first filed Nov 26, 2025, last Dec 19, 2025. Timothy E. Davis JR., Director: sold $104.2K across 1 filing, first filed Jun 1, 2026, last Jun 1, 2026. Mika Nishimura, Director: sold $56.7K across 1 filing, first filed Mar 13, 2026, last Mar 13, 2026.
Largest mark · tap a row for others
Laura Francis · Chief Executive Officer
Filing 1 of 2 within a week · $1,610,797 total
Sale $1,088,201
55,807 shares at $19.50 avg
Filed Aug 21, 2026 · traded Aug 20
Pre-arranged (10b5-1) · close on filing date $19.96
Jeffrey W. Dunn · Director
Director
$3.4M soldLaura Francis · Chief Executive Officer
Chief Executive Officer
$2.6M soldAnshul Maheshwari · Chief Financial Officer → Chief Op & Financial Officer
Chief Financial Officer → Chief Op & Financial Officer
$1.1M soldMichael A. Pisetsky · SVP, Ops & Adm/Chief Legal Ofr
SVP, Ops & Adm/Chief Legal Ofr
$402.9K soldTimothy E. Davis JR. · Director
Director
$104.2K soldMika Nishimura · Director
Director
$56.7K soldHas SI-BONE, Inc.'s CEO sold stock?
Yes. Laura Francis (CEO) sold 130,607 shares ($2.6M) between Nov 2025 and Oct 2026, all under a pre-arranged 10b5-1 plan.
Open-market trades
22 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Jeffrey W. Dunn | Director | $3.4M | — | 6 | 79% of sales | |
| Laura Francis | Chief Executive Officer | $2.6M | — | 5 | 100% of sales | |
| Anshul Maheshwari | Chief Financial Officer → Chief Op & Financial Officer | $1.1M | — | 7 | 100% of sales | |
| Michael A. Pisetsky | SVP, Ops & Adm/Chief Legal Ofr | $402.9K | — | 2 | 100% of sales | |
| Timothy E. Davis JR. | Director | $104.2K | — | 1 | — | |
| Mika Nishimura | Director | $56.7K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Laura Francis Chief Executive Officer | SalePre-arranged (10b5-1) | 38,006 | $20.05 | $762.0K | 379,256 | |
traded | Anshul Maheshwari Chief Op & Financial Officer | SalePre-arranged (10b5-1) | 1,731 | $19.50 | $33.8K | 218,235 | |
traded | Jeffrey W. Dunn Director | Sale | 20,000 | $18.47 | $369.4K | 16,057 | |
traded | Jeffrey W. Dunn Director | SalePre-arranged (10b5-1) | 20,000 | $18.91 | $378.2K | 16,057 | |
traded | Laura Francis Chief Executive Officer | SalePre-arranged (10b5-1) | 25,972 | $20.12 | $522.6K | 291,491 | |
traded | Anshul Maheshwari Chief Op & Financial Officer | SalePre-arranged (10b5-1) | 11,636 | $20.11 | $234.0K | 223,284 | |
traded | Laura Francis Chief Executive Officer | SalePre-arranged (10b5-1) | 55,807 | $19.50 | $1.1M | 317,463 | |
traded | Anshul Maheshwari Chief Op & Financial Officer | SalePre-arranged (10b5-1) | 16,975 | $19.86 | $337.1K | 234,920 | |
traded | Jeffrey W. Dunn Director | Sale | 20,000 | $18.46 | $369.2K | 16,057 | |
traded | Timothy E. Davis JR. Director | Sale | 7,280 | $14.31 | $104.2K | 65,722 | |
traded | Mika Nishimura Director | Sale | 4,100 | $13.83 | $56.7K | 32,716 | |
traded | Jeffrey W. Dunn Director | SalePre-arranged (10b5-1) | 20,000 | $21.28 | $425.5K | 80,115 | |
traded | Anshul Maheshwari Chief Financial Officer | SalePre-arranged (10b5-1) | 1,552 | $19.63 | $30.5K | 180,002 | |
traded | Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | SalePre-arranged (10b5-1) | 19,600 | $20.15 | $394.9K | 231,896 | |
traded | Anshul Maheshwari Chief Financial Officer | SalePre-arranged (10b5-1) | 18,542 | $20.15 | $373.5K | 185,231 | |
traded | Jeffrey W. Dunn Director | SalePre-arranged (10b5-1) | 20,000 | $19.33 | $386.6K | Multiple accounts | |
traded | Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | SalePre-arranged (10b5-1) | 400 | $20.00 | $8.0K | 251,496 | |
traded | Anshul Maheshwari Chief Financial Officer | SalePre-arranged (10b5-1) | 1,300 | $20.01 | $26.0K | 203,773 | |
traded | Laura Francis Chief Executive Officer | SalePre-arranged (10b5-1) | 5,411 | $17.70 | $95.8K | 351,319 | |
traded | Jeffrey W. Dunn Director | SalePre-arranged (10b5-1) | 80,000 | $18.95 | $1.5M | 10,307 | |
traded | Laura Francis Chief Executive Officer | SalePre-arranged (10b5-1) | 5,411 | $17.06 | $92.3K | 356,730 | |
traded | Anshul Maheshwari Chief Financial Officer | SalePre-arranged (10b5-1) | 2,601 | $18.33 | $47.7K | 208,533 |
GET /stocks/filings/vX/form-4?tickers=SIBN&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"SIBN"
],
"issuer_cik": "0001459839",
"owner_cik": "0001218802",
"accession_number": "0001218802-26-000006",
"form_type": "4",
"filing_date": "2026-10-14",
"period_of_report": "2026-10-12",
"issuer_name": "SI-BONE, Inc.",
"issuer_trading_symbol": "SIBN",
"owner_name": "FRANCIS LAURA",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Executive Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-12",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 38006,
"transaction_price_per_share": 20.0498,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 379256,
"transaction_value": 762012.6988,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "by Trust",
"footnotes": [
{
"id": "F1",
"description": "The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated May 21, 2026."
},
{
"id": "F2",
"description": "The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $20.00 to $20.1050, inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in these footnotes."
},
{
"id": "F3",
"description": "Reflects the transfer of shares from the Reporting Person to The David & Laura Joint Rev Tr."
},
{
"id": "F4",
"description": "Shares held by The David & Laura Joint Rev Tr."
}
]
},
{
"tickers": [
"SIBN"
],
"issuer_cik": "0001459839",
"owner_cik": "0001853089",
"accession_number": "0001853089-26-000009",
"form_type": "4",
"filing_date": "2026-10-06",
"period_of_report": "2026-10-02",
"issuer_name": "SI-BONE, Inc.",
"issuer_trading_symbol": "SIBN",
"owner_name": "Maheshwari Anshul",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Op & Financial Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-05",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1731,
"transaction_price_per_share": 19.5,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 218235,
"transaction_value": 33754.5,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F3",
"description": "The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated December 17, 2025."
},
{
"id": "F4",
"description": "Includes 160,823 shares issuable on the settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 101 records
- Option exercises9 records
- Tax withholding (sold to cover)77 records
- Grants and awards15 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SIBN every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.