Michael A. Pisetsky - 18 May 2026 Form 4 Insider Report for SI-BONE, Inc. (SIBN)

Reporting relationship: SVP, Ops & Adm/Chief Legal Ofr
Issuer ticker: SIBN
Reported as of: 18 May 2026
Net transaction value: -$54,527
SEC form: 4
Accepted by SEC: 20 May 2026, 16:30:27 UTC
Prior SEC filing: 03 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael A. Pisetsky

Key filing fact

Michael A. Pisetsky filed Form 4 for SI-BONE, Inc. (SIBN) on 20 May 2026.

Key facts

This page summarizes Michael A. Pisetsky's Form 4 filing for SI-BONE, Inc. (SIBN).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 20 May 2026, 16:30.

Change

Previous filing in this sequence was filed on 03 Apr 2026.
Current net transaction value: -$54,527.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001754765 Primary reporting owner

PISETSKY MICHAEL A.

Relationship: SVP, Ops & Adm/Chief Legal Ofr
Address: C/O SI-BONE, INC., 471 EL CAMINO REAL, SUITE 101, SANTA CLARA
Signature: /s/ Michael A. Pisetsky
Signature date: 20 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SIBN transaction

Common Stock

Sale

Transaction value: $27,392
Shares: -1,872
Change %: -0.66%
Price: $14.63
Shares after: 280,968
Date: 18 May 2026
Ownership: Direct
Footnotes: F1, F2

SIBN transaction

Common Stock

Sale

Transaction value: $27,134
Shares: -1,854
Change %: -0.66%
Price: $14.64
Shares after: 280,509
Date: 18 May 2026
Ownership: Direct
Footnotes: F1, F3, F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. The sale satisfies the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.

Footnote F2

This transaction was executed in multiple trades at prices ranging from $14.25 USD to $14.84 USD; the price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide Issuer, any security holder 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 this footnote.

Footnote F3

This transaction was executed in multiple trades at prices ranging from $14.22 USD to $14.84 USD; the price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide Issuer, any security holder 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 this footnote.

Footnote F4

Includes 1,395 shares acquired under the SI-BONE, Inc 2018 Employee Stock Purchase Plan on May 15, 2026.

Footnote F5

Includes 143,729 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.