Timothy E. Davis Jr. - 28 May 2026 Form 4 Insider Report for SI-BONE, Inc. (SIBN)

Reporting relationship: Director
Issuer ticker: SIBN
Reported as of: 28 May 2026
Net transaction value: -$104,187
SEC form: 4
Accepted by SEC: 01 Jun 2026, 17:47:08 UTC
Prior SEC filing: 06 Jun 2025
Next SEC filing: 08 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael A. Pisetsky, Attorney-in-Fact for Timothy E. Davis, Jr.

Key filing fact

Timothy E. Davis Jr. filed Form 4 for SI-BONE, Inc. (SIBN) on 01 Jun 2026.

Key facts

This page summarizes Timothy E. Davis Jr.'s Form 4 filing for SI-BONE, Inc. (SIBN).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 01 Jun 2026, 17:47.

Change

Previous filing in this sequence was filed on 06 Jun 2025.
Current net transaction value: -$104,187.

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 0001492082 Primary reporting owner

Davis Timothy E JR

Relationship: Director
Address: C/O SI-BONE, INC., 471 EL CAMINO REAL, SUITE 101, SANTA CLARA
Signature: /s/ Michael A. Pisetsky, Attorney-in-Fact for Timothy E. Davis, Jr.
Signature date: 01 Jun 2026

Reported non-derivative transactions

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

SIBN transaction

Common Stock

Options Exercise

Transaction value
Shares: +12,064
Change %: +20%
Price: $4.32^*
Shares after: 73,002
Date: 28 May 2026
Ownership: Direct

SIBN transaction

Common Stock

Sale

Transaction value: $54,699
Shares: -3,780
Change %: -5.2%
Price: $14.47
Shares after: 69,222
Date: 28 May 2026
Ownership: Direct
Footnotes: F1

SIBN transaction

Common Stock

Sale

Transaction value: $49,488
Shares: -3,500
Change %: -5.1%
Price: $14.14
Shares after: 65,722
Date: 29 May 2026
Ownership: Direct
Footnotes: F2, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SIBN transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -12,064
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 28 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 12,064
Exercise price: $4.32
Footnotes: F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

This transaction was executed in multiple trades at prices ranging from $14.45 USD to $14.505 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 F2

This transaction was executed in multiple trades at prices ranging from $14.12 USD to $14.15 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

Includes 8,675 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.

Footnote F4

The shares subject to the option are fully vested and immediately exercisable.