Form 4 for SIBN SI-BONE, Inc.

Accepted 2026-08-18 16:58:37 ET · period of report 2026-08-17 · accession 0001754765-26-000006 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
M	2026-08-18 16:58	2026-08-17	SIBN	PISETSKY MICHAEL A.	SVP, Ops, Adm, Chief Legal Ofr	S - Sale	$18.63	-3,725	273.6K	-1%	-$69.4K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-08-17	S	D	1,854	$18.62	275,521	D	—	—	(F1) 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. (F2) This transaction was executed in multiple trades at prices ranging from $18.545 USD to $18.77 USD; the price reported above reflects the weighted average sale price.
2	Common	Common Stock	2026-08-17	S	D	1,871	$18.65	273,650	D	—	—	(F1) 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. (F3) This transaction was executed in multiple trades at prices ranging from $18.55 USD to $18.77 USD; the price reported above reflects the weighted average sale price. (F4) Includes 130,281 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.