SI-BONE
Builds iFuse implants for sacroiliac fusion, adult deformity, and pelvic trauma.
$19.21
After-hours close+0.01 (+0.05%)
At close$19.20(0.00%)
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Breakdown13F · Form 4
Institutions 109.24%Insiders 4.74%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 44.35M · Float 43.23M · 97.5% free float
Institutions13F, as of Jun 30, 2026
173 holders · 48.45M shares · 24 new positions · 106 increased · 47 reduced · 32 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| First Light Asset Management, LLC | 8.13M | 18.33% | +2.77M | Aug 14, 2026 |
| BlackRock, Inc. | 3.68M | 8.29% | +247.7K | Aug 7, 2026 |
| Cadian Capital Management, LP | 3.35M | 7.55% | +1.46M | Aug 14, 2026 |
| American Century Companies Inc | 2.51M | 5.66% | +1.9K | Aug 12, 2026 |
| Brown Advisory Inc | 2.08M | 4.68% | −45.2K | Aug 14, 2026 |
| Granahan Investment Management, LLC | 1.93M | 4.35% | +192.1K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 1.84M | 4.15% | +74.2K | Aug 13, 2026 |
| Impax Asset Management Group PLC | 1.43M | 3.21% | 0 | Aug 11, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| First Light Asset Management, LLC | 18.02% | 7.97M | 13G | May 7, 2026 ↗ |
| Cadian Capital Management, LP | 7.50% | 3.35M | 13G | Aug 14, 2026 ↗ |
| BlackRock, Inc. | 6.90% | 3.06M | 13G | Apr 24, 2026 ↗ |
| American Century Investment Management, Inc. | 6.20% | 2.64M | 13G | May 15, 2025 ↗ |
| Brown Advisory Inc | 5.79% | 2.51M | 13G | Feb 13, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Laura Francis | director, officer: Chief Executive Officer | 785.4K | 1.77% | Aug 26, 2026 |
| Michael A. Pisetsky | officer: SVP, Ops & Adm/Chief Legal Ofr | 273.7K | 0.62% | Aug 18, 2026 |
| Anthony J. Recupero | other: See Remarks | 243.4K | 0.55% | Feb 18, 2026 |
| Anshul Maheshwari | officer: Chief Op & Financial Officer | 223.3K | 0.50% | Aug 26, 2026 |
| John Gordon Freund | director | 146.0K | 0.33% | Jun 8, 2026 |
| Greg K. Hinckley | director | 105.1K | 0.24% | Apr 9, 2026 |
| Jeffrey W. Dunn | director | 96.2K | 0.22% | Aug 5, 2026 |
| Timothy E. JR Davis | director | 76.7K | 0.17% | Jun 8, 2026 |
| Jeryl L. Hilleman | director | 43.8K | 0.10% | Jun 9, 2026 |
| Mika Nishimura | director | 43.7K | 0.10% | Jun 8, 2026 |
2 ten-percent owners hold 2.90M shares by Form 4, outside the officers-and-directors figure above · 10 people have not refiled in the last 18 months (3.37M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 24, 2026 | Anshul Maheshwariofficer: Chief Op & Financial Officer | Sale | 11,636 | $20.11 | 223,284 |
| Aug 24, 2026 | Laura Francisdirector, officer: Chief Executive Officer | Sale | 25,972 | $20.12 | 291,491 |
| Aug 21, 2026 | Anshul Maheshwariofficer: Chief Op & Financial Officer | Sale | 11,228 | $20.02 | 234,920 |
| Aug 19, 2026 | Anshul Maheshwariofficer: Chief Op & Financial Officer | Sale | 5,747 | $19.55 | 246,148 |
| Aug 21, 2026 | Laura Francisdirector, officer: Chief Executive Officer | Sale | 3,923 | $20.02 | 317,463 |
| Aug 20, 2026 | Laura Francisdirector, officer: Chief Executive Officer | Sale | 51,884 | $19.46 | 321,386 |
| Aug 17, 2026 | Michael A. Pisetskyofficer: SVP, Ops & Adm/Chief Legal Ofr | Sale · 2 lots | 3,725 | $18.63 | 273,650 |
| Aug 17, 2026 | Laura Francisdirector, officer: Chief Executive Officer | Sale · 5 lots | 14,956 | $18.66 | 490,461 |
| Aug 17, 2026 | Anshul Maheshwariofficer: Chief Financial Officer | Sale · 2 lots | 4,665 | $18.65 | 251,895 |
| Aug 3, 2026 | Jeffrey W. Dunndirector | Sale | 20,000 | $18.46 | 16,057 |
CongressHouse and Senate disclosures
Not reported.