SI-BONE, Inc. — Director's Dealing 2019

Apr 18, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SI-BONE, Inc. (SIBN)
CIK: 0001459839
Period of Report: 2019-04-15

Reporting Person: RECUPERO ANTHONY J (Chief Commercial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-04-15	Common Stock	M	1000	$4.32	Acquired	20700	Direct
2019-04-15	Common Stock	S	1000	$17.0237	Disposed	19700	Direct
2019-04-15	Common Stock	S	427	$16.5455	Disposed	19273	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-04-15	Stock Option (right to buy)	$4.32	M	1000	Disposed	2026-07-26	Common Stock (1000)	Direct

Footnotes

F1: Includes 18,469 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one shares of the Issuer's common stock.

F2: The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan.

F3: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $16.69 to $17.45, 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 footnotes 3 and 5.

F4: 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.

F5: The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $16.40 to $16.59, inclusive.

F6: The shares subject to the option vest as to 25% on the 12-month anniversary of July 5, 2016, and 1/36th of the balance of the shares vest each month thereafter, subject to Reporting Person's continued service through each relevant vesting date.