SI-BONE
SIBN · NASDAQ
$20.54+$0.88 (+4.48%)TodayMarket closed ·
Prev close $19.66
Who owns SIBN
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 60.9% of SIBN’s shares.
- First Light Asset Management, LLC18.3%
- Cadian Capital Management LP7.5%
- BlackRock Institutional Trust Company, N.A.7.4%
- American Century Investment Management, Inc.5.7%
- Next 6 largest institutions22.0%
- All other shareholders39.1%
| Holder | Shares | % of shares |
|---|---|---|
| First Light Asset Management, LLC | 8.13M | 18.33% |
| Cadian Capital Management LP | 3.35M | 7.55% |
| BlackRock Institutional Trust Company, N.A. | 3.27M | 7.37% |
| American Century Investment Management, Inc. | 2.51M | 5.66% |
| Brown Advisory | 2.08M | 4.68% |
| Granahan Investment Management, LLC | 1.93M | 4.35% |
| Vanguard Capital Management, LLC | 1.84M | 4.15% |
| Impax Asset Management LLC | 1.43M | 3.21% |
| Gilder Gagnon Howe & Co. LLC | 1.25M | 2.83% |
| Paradigm Capital Management, Inc. | 1.23M | 2.78% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| American Century Small Cap Growth Fund | 1.90M | 4.27% |
| Impax Small Cap Fund | 1.43M | 3.21% |
| Vanguard Total Stock Market Index Fund | 1.34M | 3.01% |
| iShares Russell 2000 ETF | 1.14M | 2.56% |
| CT Healthcare Trust plc | 786.55K | 1.77% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $5.26M (44 trades) of SIBN on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| FRANCIS LAURA | Sale | 38.01K | $762.01K |
| Maheshwari Anshul | Sale | 1.73K | $33.75K |
| Maheshwari Anshul | Sale | 1.76K | $31.98K |
| Maheshwari Anshul | Sale | 1.56K | $28.34K |
| PISETSKY MICHAEL A. | Sale | 34 | $617 |
| PISETSKY MICHAEL A. | Sale | 1.80K | $32.64K |
| PISETSKY MICHAEL A. | Sale | 1.30K | $23.66K |
| DUNN JEFFREY W | Option exercise | 20.00K | — |
| DUNN JEFFREY W | Sale | 20.00K | $369.40K |
| DUNN JEFFREY W | Option exercise | 20.00K | $93.60K |
Short interest
Settled Sep 30, 2026
- Shares short
- 5.12M
- Days to cover
- 8.66
- % of shares outstanding
- 11.54%
- Average daily volume
- 591.12K
- Change since last report
- −13.5%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.