Mika Nishimura - 04 Jun 2026 Form 4 Insider Report for SI-BONE, Inc. (SIBN)

Reporting relationship: Director
Issuer ticker: SIBN
Reported as of: 04 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 08 Jun 2026, 17:42:47 UTC
Prior SEC filing: 13 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Pisetsky, Attorney-in-Fact for Mika Nishimura

Key filing fact

Mika Nishimura filed Form 4 for SI-BONE, Inc. (SIBN) on 08 Jun 2026.

Key facts

This page summarizes Mika Nishimura's Form 4 filing for SI-BONE, Inc. (SIBN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 08 Jun 2026, 17:42.

Change

Previous filing in this sequence was filed on 13 Mar 2026.
Current net transaction value: $0.

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 0001848327 Primary reporting owner

Nishimura Mika

Relationship: Director
Address: C/O SI-BONE, INC., 471 EL CAMINO REAL, SUITE 101, SANTA CLARA
Signature: /s/ Michael Pisetsky, Attorney-in-Fact for Mika Nishimura
Signature date: 08 Jun 2026

Reported non-derivative transactions

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

SIBN transaction

Common Stock

Award

Transaction value
Shares: +10,957
Change %: +33%
Price: $0.000000^*
Shares after: 43,673
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Reflects 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. The shares subject to the restricted stock unit will vest 100% upon the earlier of (i) the next annual general meeting of the stockholders of the Company or (ii) the date one year from the Vesting Commencement Date, subject to the Reporting Person's continuous service as a member of the Company's Board of Directors until such date.

Footnote F2

Includes 10,957 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.