JEFFREY W. DUNN - 08 Dec 2025 Form 4 Insider Report for SI-BONE, Inc. (SIBN)

Role
Director
Signature
/s/ Michael A. Pisetsky, Attorney-in-Fact for Jeffrey W. Dunn
Issuer symbol
SIBN
Transactions as of
08 Dec 2025
Transactions value $
-$381,233
Form type
4
Filing time
11 Dec 2025, 09:37:20 UTC
Previous filing
13 Nov 2025
SEC
View on sec.gov

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 10 Dec 2025 0001035986

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SIBN Common Stock Options Exercise $5.36K +1.24K +12.04% $4.32 11.5K 08 Dec 2025 Direct
transaction SIBN Common Stock Sale -$24K -1.24K -10.75% $19.33 10.3K 08 Dec 2025 Direct F1, F2, F3
transaction SIBN Common Stock Sale -$363K -18.8K -14.56% $19.33 110K 08 Dec 2025 by Trust F1, F2, 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 -1.24K -100% $0.00 0 08 Dec 2025 Common Stock 1.24K $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 The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $19.13 to $19.85, inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder 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 these footnotes.
F3 Includes 10,307 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive on shares of the Issuer's common stock.
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.