Jeffrey W. Dunn - Nov 11, 2025 Form 4 Insider Report for SI-BONE, Inc. (SIBN)

Role
Director
Signature
/s/ Michael A. Pisetsky, Attorney-in-Fact for Jeffrey W. Dunn
Stock symbol
SIBN
Transactions as of
Nov 11, 2025
Transactions value $
-$1,170,400
Form type
4
Date filed
11/13/2025, 04:31 PM
Previous filing
Nov 4, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DUNN JEFFREY W Director C/O SI-BONE, INC., 471 EL CAMINO REAL, SUITE 101, SANTA CLARA /s/ Michael A. Pisetsky, Attorney-in-Fact for Jeffrey W. Dunn 2025-11-13 0001035986

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SIBN Common Stock Sale -$439K -23.1K -69.19% $18.95 10.3K Nov 11, 2025 Direct F1
transaction SIBN Common Stock Options Exercise $100K +23.1K +224.59% $4.32 33.5K Nov 11, 2025 Direct F1
transaction SIBN Common Stock Options Exercise $246K +56.9K +169.94% $4.32 90.3K Nov 11, 2025 Direct F1
transaction SIBN Common Stock Sale -$1.08M -56.9K -84.65% $18.95 10.3K Nov 11, 2025 Direct F1, F2
holding SIBN Common Stock 119K Nov 11, 2025 by Trust F3, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SIBN Stock Option (Right to Buy) Options Exercise $0 -23.1K -28.49% $0.00 58.1K Nov 11, 2025 Common Stock 23.1K $4.32 Direct F5
transaction SIBN Stock Option (Right to Buy) Options Exercise $0 -56.9K -97.86% $0.00 1.24K Nov 11, 2025 Common Stock 56.9K $4.32 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated May 7th, 2025.
F2 Includes 10,307 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.
F3 Reflects the transfer of shares from the Reporting Person to The Jeffrey W. Dunn Living Trust dated May 17, 2012.
F4 Shares held by The Jeffrey W. Dunn Living Trust Dated May 17, 2012.
F5 The shares subject to the option vest in equal monthly installments over four years commencing on the vesting commencement date, subject to Reporting Person's continued service through each relevant vesting date.