Si-Bone Inc (SIBN)
Healthcare
Medical Devices
17.80 $
-1.3%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Si-Bone Inc (SIBN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 96.5% of the shares are freely tradable; institutional investors hold 108.2%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
108.2%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
3.4%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
96.5%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
15.6%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
44Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| First Light Asset Management, LLC | 12.07 | 5,353,190 | +6.4 | 03/31/2026 |
| BlackRock Inc | 7.73 | 3,428,541 | -1.7 | 03/31/2026 |
| American Century Companies Inc | 5.66 | 2,509,065 | +9.1 | 03/31/2026 |
| Vanguard Group Inc | 5.64 | 2,501,555 | +0.5 | 12/31/2025 |
| Brown Advisory Holdings Inc | 4.79 | 2,122,332 | -13.8 | 03/31/2026 |
| Cadian Capital Management LP | 4.26 | 1,887,472 | +61.2 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.98 | 1,764,313 | +0.0 | 03/31/2026 |
| Granahan Investment Management Inc.. | 3.92 | 1,739,097 | +97.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| American Century U.S. Small Cap Growth | 4.29 | 1,895,954 | +6.5 | 03/31/2026 |
| American Century Small Cap Growth Inv | 4.29 | 1,895,954 | +6.5 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.