SI-BONE INC (SIBN) Institutional Ownership Changes & 13F Activity
SI-BONE INC (SIBN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include First Light Asset Management, Llc, Cadian Capital Management, Lp, Gilder Gagnon Howe & Co Llc, Next Century Growth Investors Llc, and Aqr Capital Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +1,230 | +11.6% | 11,841 | $193.25K | Q2 2026 | Sep 09, 2026 |
| Corient Private Wealth Llc | Buy | +23,938 | +119.6% | 43,946 | $717.20K | Q2 2026 | Aug 27, 2026 |
| Vela Investment Management, Llc | Buy | +13,934 | +7.4% | 201,094 | $3.28M | Q2 2026 | Aug 27, 2026 |
| First Eagle U.S. Value | Buy | +130,000 | +20.3% | 768,941 | $12.55M | Q2 2026 | Aug 24, 2026 |
| California State Teachers Retirement System | Buy | +5,282 | +13.5% | 44,543 | $726.94K | Q2 2026 | Aug 24, 2026 |
| Mercer Global Advisors Inc | Buy | +30,305 | +257.6% | 42,068 | $686.55K | Q2 2026 | Aug 19, 2026 |
| First Light Asset Management, Llc | Buy | +2,774,795 | +51.8% | 8,127,985 | $132.65M | Q2 2026 | Aug 14, 2026 |
| Cadian Capital Management, Lp | Buy | +1,460,102 | +77.4% | 3,347,574 | $54.63M | Q2 2026 | Aug 14, 2026 |
| Gilder Gagnon Howe & Co Llc | Buy | +204,526 | +19.5% | 1,253,042 | $20.45M | Q2 2026 | Aug 14, 2026 |
| Next Century Growth Investors Llc | Buy | +201,331 | +52.4% | 585,289 | $9.55M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +196,147 | +339.9% | 253,848 | $4.14M | Q2 2026 | Aug 14, 2026 |
| Granahan Investment Management, Llc | Buy | +192,085 | +11.0% | 1,931,182 | $31.52M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -180,530 | -29.0% | 441,912 | $7.21M | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Buy | +100,364 | — | 100,364 | $1.64M | Q2 2026 | Aug 14, 2026 |
| Silvercrest Asset Management Group Llc | Sell | -86,008 | -6.9% | 1,158,576 | $18.91M | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager Lp | Sell | -65,544 | -69.0% | 29,380 | $479.48K | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +64,793 | — | 64,793 | $1.06M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +62,236 | — | 62,236 | $1.02M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Sell | -50,023 | -6.0% | 790,323 | $12.90M | Q2 2026 | Aug 14, 2026 |
| Brown Advisory Inc | Sell | -45,198 | -2.1% | 2,077,134 | $33.90M | Q2 2026 | Aug 14, 2026 |
| Parkman Healthcare Partners Llc | Sell | -44,867 | -12.0% | 328,686 | $5.36M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Sell | -43,021 | -51.7% | 40,132 | $654.95K | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +33,947 | +40.3% | 118,128 | $1.93M | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Buy | +32,420 | +257.7% | 45,000 | $734.40K | Q2 2026 | Aug 14, 2026 |
| Raymond James Financial Inc | Sell | -31,942 | -63.4% | 18,414 | $300.52K | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Sell | -29,755 | -3.9% | 742,857 | $12.12M | Q2 2026 | Aug 14, 2026 |
| Cinctive Capital Management Lp | Buy | +27,977 | +29.3% | 123,517 | $2.02M | Q2 2026 | Aug 14, 2026 |
| Magnetar Financial Llc | Buy | +27,740 | — | 27,740 | $452.72K | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +27,313 | +8.7% | 342,784 | $5.59M | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +26,118 | +178.6% | 40,739 | $664.86K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about SIBN activity
Which institutional owners are buying SIBN?
Institutional owners buying SIBN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in SIBN activity?
"Buy" means an investor increased their reported position in SIBN compared to the prior reporting period. This reflects growing exposure to SI-BONE INC (SIBN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in SIBN increasing?
Institutional interest in SIBN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related SIBN Institutional Insights
- SIBN Overview
- SIBN 13F Institutional Holders
- SIBN Top Institutional Shareholders
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- SIBN Insider Trading & SEC Form 4 Activity
- SIBN Articles
- Top Institutional Investor Stock Rankings