Form4insider filings, from the source

Company · CIK 0001459839 · SIC 3841 — Surgical & Medical Instruments & Apparatus · Nasdaq

SI-BONE, Inc. · SIBN

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $18.8M · 5sales $3.5M · 12net $15.2M
$10k$10k$1M$1M$100M$100MbuyssalesOct 2018Feb 2020Jun 2021Sep 2022Jan 2024May 2025Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 SForm 4 →Sep 3, 7:26 pm EDTJeffrey W DunnDirector20,000$18.91$378,16016,057−55.5%10b5-1
Sep 1, 2026 MForm 4 →Sep 3, 7:26 pm EDTJeffrey W DunnDirector20,000$4.68$93,60036,057—10b5-1
Aug 24, 2026 SForm 4 →Aug 26, 7:06 pm EDTLaura FrancisChief Executive Officer, Director25,972$20.12$522,596291,491−8.18%10b5-1
Aug 24, 2026 SForm 4 →Aug 26, 7:04 pm EDTAnshul MaheshwariChief Op & Financial Officer11,636$20.11$233,971223,284−4.95%10b5-1
Aug 20, 2026 SForm 4 →Aug 21, 5:58 pm EDTLaura FrancisChief Executive Officer, Director55,807$19.50$1,088,201317,463−15.0%10b5-1
Aug 19, 2026 SForm 4 →Aug 21, 5:56 pm EDTAnshul MaheshwariChief Op & Financial Officer16,975$19.86$337,138234,920−6.74%10b5-1
Aug 17, 2026 SForm 4 →Aug 18, 5:00 pm EDTLaura FrancisChief Executive Officer, Director14,956$18.66$279,065493,900−2.94%
Aug 17, 2026 SForm 4 →Aug 18, 4:58 pm EDTMichael A. PisetskySVP, Ops & Adm/Chief Legal Ofr3,725$18.63$69,411273,650−1.34%
Aug 17, 2026 SForm 4 →Aug 18, 4:55 pm EDTAnshul MaheshwariChief Financial Officer4,665$18.65$87,016251,895−1.82%
Aug 3, 2026 SForm 4 →Aug 5, 6:21 pm EDTJeffrey W DunnDirector20,000$18.46$369,21416,057−55.5%
Aug 3, 2026 MForm 4 →Aug 5, 6:21 pm EDTJeffrey W DunnDirector20,000$4.68$93,60036,057—
Jul 2, 2026 SForm 4 →Jul 6, 5:11 pm EDTMichael A. PisetskySVP, Ops & Adm/Chief Legal Ofr3,134$16.71$52,375277,375−1.12%
Jul 2, 2026 SForm 4 →Jul 6, 5:07 pm EDTAnshul MaheshwariChief Financial Officer3,317$16.77$55,627256,560−1.28%
Jun 5, 2026 SForm 4 →Jun 8, 5:43 pm EDTJeffrey W DunnDirector3,575$15.25$54,50516,057−18.2%
Jun 4, 2026 AForm 4 →Jun 9, 2:50 pm EDTJeryl L HillemanDirector10,957——43,772— late
Jun 4, 2026 AForm 4 →Jun 8, 5:43 pm EDTJeffrey W DunnDirector10,957——20,114—
Jun 4, 2026 AForm 4 →Jun 8, 5:42 pm EDTMika NishimuraDirector10,957——43,673—
Jun 4, 2026 AForm 4 →Jun 8, 5:42 pm EDTThomas A. WestDirector10,957——37,947—
Jun 4, 2026 AForm 4 →Jun 8, 5:41 pm EDTJohn Gordon FreundDirector10,957——54,258—
Jun 4, 2026 AForm 4 →Jun 8, 5:40 pm EDTTimothy E Davis Jr.Director10,957——76,679—
Jan 15, 2019 AForm 4 →Jan 17, 6:47 pm ESTMichael A PisetskyGC & Chief Compliance Officer11,400——18,314— plan?
Jan 15, 2019 AForm 4 →Jan 17, 6:46 pm ESTScott A YerbyChief Technology Officer10,200——108,182— plan?
Jan 15, 2019 AForm 4 →Jan 17, 6:45 pm ESTW Carlton RecklingCMO and VP, Medical Affairs10,200——10,200— plan?
Jan 15, 2019 AForm 4 →Jan 17, 6:44 pm ESTAnthony J RecuperoChief Commercial Officer19,700——19,700— plan?
Jan 15, 2019 AForm 4 →Jan 17, 6:43 pm ESTLaura FrancisChief Financial Officer22,800——71,018— plan?
Jan 15, 2019 AForm 4 →Jan 17, 6:42 pm ESTJeffrey W DunnChairman, President & CEO, Director68,100——101,433— plan?
Oct 19, 2018 CForm 4 →Oct 19, 5:01 pm EDTKeith ValentineDirector9,966——31,374— plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:59 pm EDTMark A ReileyDirector8,680——523,180— plan?
Oct 19, 2018 PForm 4 →Oct 19, 4:58 pm EDTTimothy PetersenDirector200,000$15.00$3,000,0001,695,036+13.4% plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:58 pm EDTTimothy PetersenDirector1,495,036——1,495,036— plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:57 pm EDTGregory K HinckleyDirector83,219——75,603— plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:56 pm EDTTimothy E Davis Jr.Director6,426——6,426— plan?
Oct 19, 2018 PForm 4 →Oct 19, 4:52 pm EDTORBIMED ADVISORS LLC +1Director200,000$15.00$3,000,000985,368+25.5% plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:52 pm EDTORBIMED ADVISORS LLC +1Director785,368——785,368— plan?
Oct 19, 2018 PForm 4 →Oct 19, 4:50 pm EDTDavid P BonitaDirector200,000$15.00$3,000,000985,368+25.5% plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:50 pm EDTDavid P BonitaDirector785,368——785,368— plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:49 pm EDTMontreux Equity Partners IV, L.P. +410% Owner2,029,715——171,929— plan?
Oct 19, 2018 PForm 4 →Oct 19, 4:48 pm EDTSkyline Venture Partners V LP +310% Owner325,000$15.00$4,875,0004,419,985+7.94% plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:48 pm EDTSkyline Venture Partners V LP +310% Owner4,094,985——4,094,985— plan?
Oct 19, 2018 PForm 4 →Oct 19, 4:48 pm EDTJohn Gordon FreundDirector, 10% Owner325,000$15.00$4,875,0004,419,985+7.94% plan?
Oct 19, 2018 CForm 4 →Oct 19, 4:48 pm EDTJohn Gordon FreundDirector, 10% Owner4,094,985——4,094,985— plan?

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 MForm 4 →Sep 3, 7:26 pm EDTJeffrey W DunnDirector20,000——86,260—10b5-1
Aug 3, 2026 MForm 4 →Aug 5, 6:21 pm EDTJeffrey W DunnDirector20,000——106,260—
Jan 15, 2019 AForm 4 →Jan 17, 6:47 pm ESTMichael A PisetskyGC & Chief Compliance Officer24,700——24,700—
Jan 15, 2019 AForm 4 →Jan 17, 6:46 pm ESTScott A YerbyChief Technology Officer22,100——22,100—
Jan 15, 2019 AForm 4 →Jan 17, 6:45 pm ESTW Carlton RecklingCMO and VP, Medical Affairs22,100——22,100—
Jan 15, 2019 AForm 4 →Jan 17, 6:44 pm ESTAnthony J RecuperoChief Commercial Officer42,700——42,700—
Jan 15, 2019 AForm 4 →Jan 17, 6:43 pm ESTLaura FrancisChief Financial Officer49,400——49,400—
Jan 15, 2019 AForm 4 →Jan 17, 6:42 pm ESTJeffrey W DunnChairman, President & CEO, Director147,500——147,500—
Oct 19, 2018 CForm 4 →Oct 19, 5:01 pm EDTKeith ValentineDirector9,966——0—
Oct 19, 2018 CForm 4 →Oct 19, 4:59 pm EDTMark A ReileyDirector8,680——0—
Oct 19, 2018 CForm 4 →Oct 19, 4:58 pm EDTTimothy PetersenDirector1,495,036——0—
Oct 19, 2018 CForm 4 →Oct 19, 4:57 pm EDTGregory K HinckleyDirector81,971——0—
Oct 19, 2018 CForm 4 →Oct 19, 4:56 pm EDTTimothy E Davis Jr.Director6,070——0—
Oct 19, 2018 CForm 4 →Oct 19, 4:52 pm EDTORBIMED ADVISORS LLC +1Director751,730——0—
Oct 19, 2018 CForm 4 →Oct 19, 4:50 pm EDTDavid P BonitaDirector751,730——0—
Oct 19, 2018 CSXForm 4 →Oct 19, 4:49 pm EDTMontreux Equity Partners IV, L.P. +410% Owner2,034,082$15.00$140,9550—
Oct 19, 2018 CSXForm 4 →Oct 19, 4:48 pm EDTSkyline Venture Partners V LP +310% Owner4,159,389$14.00$334,6560—
Oct 19, 2018 CSXForm 4 →Oct 19, 4:48 pm EDTJohn Gordon FreundDirector, 10% Owner4,159,389$15.00$358,5600—