Institutional shares held 44.2 Million
57.2K calls
0 puts
Total value of holdings $771M
$996K calls
$0 puts
Market Cap $598M
34,305,000 Shares Out.
Institutional ownership 128.96%
# of Institutions 184


Latest Institutional Activity in SIBN

Top Purchases

Q3 2025
Cadian Capital Management, LP Shares Held: 595K ($10.4M)
Q3 2025
Point72 (Difc) LTD Shares Held: 585K ($10.2M)
Q3 2025
American Century Companies Inc Shares Held: 2.84M ($49.4M)
Q3 2025
Wellington Management Group LLP Shares Held: 853K ($14.9M)
Q3 2025
Impax Asset Management Group PLC Shares Held: 1.03M ($17.9M)

Top Sells

Q3 2025
Harbor Capital Advisors, Inc. Shares Held: 150K ($2.61M)
Q3 2025
Marshall Wace, LLP Shares Held: 192K ($3.35M)
Q3 2025
Bellevue Group Ag Shares Held: 299K ($5.21M)
Q3 2025
Next Century Growth Investors LLC Shares Held: 23.3K ($407K)
Q3 2025
Granahan Investment Management, LLC Shares Held: 1.04M ($18.1M)

About SIBN

SI-BONE, Inc., a medical device company, develops implantable devices used to solve musculoskeletal disorders of the sacropelvic anatomy in the United States and internationally. It offers iFuse, a minimally invasive surgical implant system to address sacroiliac joint dysfunction and degeneration, adult deformity, and pelvic ring traumatic fractures. The company also provides iFuse-3D, a titanium implant that combines the triangular cross-section of the iFuse implant with the proprietary 3D-printed porous surface and fenestrated design; and iFuse-TORQ, a set of 3D-printed threaded implants designed to treat fractures of the pelvis and for minimally invasive sacroiliac joint fusion. It markets its products primarily with a direct sales force, as well as through distributors. The company was incorporated in 2008 and is headquartered in Santa Clara, California.


Insider Transactions at SIBN

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
585K Shares
From 13 Insiders
Grant, award, or other acquisition 484K shares
Exercise of conversion of derivative security 101K shares
Sell / Disposition
379K Shares
From 6 Insiders
Open market or private sale 379K shares

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