Latest filingSep 03, 2026Most recent Form 4
SIBN
SI-BONE, Inc.
NasdaqHealthcareSurgical & Medical Instruments & Apparatus
Insider activity for last month from 08/04 to 09/04. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$299M17 sells
Net open-market-$299M4 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period21transactions
- S · Open-market sells · dominant17 · 81%
- M · Option exercise4 · 19%
Activity by reported role
A joint filing can contribute to multiple roles30transactions
- Chief executive officer · dominant8 · 27%
- Director6 · 20%
- CO3 · 10%
- FO3 · 10%
- ADM2 · 7%
- Chief financial officer2 · 7%
- CLO2 · 7%
- OPS2 · 7%
- SVP2 · 7%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeMaheshwari AnshulCommon Stock · Direct
223,284Aug 24, 2026
Francis LauraCommon Stock · Direct
495,900Aug 17, 2026
Dunn Jeffrey WCommon Stock · Direct
34,690Sep 01, 2026
Francis LauraCommon Stock · Indirect · by Trust
291,491Aug 24, 2026
Pisetsky Michael A.Common Stock · Direct
275,521Aug 17, 2026
Dunn Jeffrey WStock Option (Right to Buy) · Direct
86,260Sep 01, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 04 → Sep 04
LessMore
Top insiders
By absolute net value across the selected period- FL-$1.4M
- MA-$424.2k
- DW-$378.2k
- PA-$69.4k
Recent filing activity
Most recent 12 transactions · color = transaction codeFiling detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
SIBN transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| SIBN | DUNN JEFFREY W | DIR | sale10b5-1 | 1.36k | -$2.58M | S | — | 0.0% | 09/03 | 09/01 |
| SIBN | DUNN JEFFREY W | DIR | sale10b5-1 | 18.6k | -$35.2M | S | — | 0.0% | 09/03 | 09/01 |
| SIBN | FRANCIS LAURA | CEO | sale10b5-1 | 3.92k | -$7.85M | S | −3.8% | 08/21 | 08/21 | |
| SIBN | FRANCIS LAURA | CEO | sale10b5-1 | 51.8k | -$100M | S | −3.8% | 08/21 | 08/20 | |
| SIBN | Maheshwari Anshul | COFO | sale10b5-1 | 11.2k | -$22.4M | S | −3.8% | 08/21 | 08/21 | |
| SIBN | Maheshwari Anshul | COFO | sale10b5-1 | 5.74k | -$11.2M | S | −3.8% | 08/21 | 08/19 | |
| SIBN | FRANCIS LAURA | CEO | sale | 1.97k | -$3.67M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | FRANCIS LAURA | CEO | sale | 2.23k | -$4.17M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | FRANCIS LAURA | CEO | sale | 3.20k | -$5.97M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | FRANCIS LAURA | CEO | sale | 3.65k | -$6.81M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | FRANCIS LAURA | CEO | sale | 3.89k | -$7.26M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | PISETSKY MICHAEL A. | SVPOPSADM+1 | sale | 1.87k | -$3.48M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | PISETSKY MICHAEL A. | SVPOPSADM+1 | sale | 1.85k | -$3.45M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | Maheshwari Anshul | CFO | sale | 2.18k | -$4.07M | S | −1.1% | 08/18 | 08/17 | |
| SIBN | Maheshwari Anshul | CFO | sale | 2.47k | -$4.62M | S | −1.1% | 08/18 | 08/17 |
SI-BONE, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at SI-BONE, Inc.?
DUNN JEFFREY W, FRANCIS LAURA, Maheshwari Anshul, PISETSKY MICHAEL A..
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Dunn Jeffrey W reported a sale on Sep 01, 2026 valued at $2.58M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $2,995,557.29. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.