SIBN SI-BONE, Inc.
SI-BONE, Inc. (SIBN) Institutional Ownership
What the institutions did with SIBN last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| First Light Asset Management, LLC | 8.1M | 16.9% |
| BlackRock, Inc. | 3.7M | 7.6% |
| CADIAN CAPITAL MANAGEMENT, LP | 3.3M | 6.9% |
| AMERICAN CENTURY COMPANIES INC | 2.5M | 5.2% |
| BROWN ADVISORY INC | 2.1M | 4.3% |
| Granahan Investment Management, LLC | 1.9M | 4.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | 3.8% |
| First Eagle Investment Management, LLC | 1.5M | 3.2% |
| Impax Asset Management Group plc | 1.4M | 3.0% |
| GILDER GAGNON HOWE & CO LLC | 1.3M | 2.6% |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 1.2M | 2.6% |
| STATE STREET CORP | 1.2M | 2.5% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 1.2M | 2.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | 2.2% |
| Nuveen, LLC | 1.0M | 2.1% |
| Champlain Investment Partners, LLC | 896.5K | 1.9% |
| Point72 Asset Management, L.P. | 790.3K | 1.6% |
| WELLINGTON MANAGEMENT GROUP LLP | 742.9K | 1.5% |
| DIMENSIONAL FUND ADVISORS LP | 708.3K | 1.5% |
| MARSHALL WACE, LLP | 690.3K | 1.4% |
| NEXT CENTURY GROWTH INVESTORS LLC | 585.3K | 1.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 548.3K | 1.1% |
| GOLDMAN SACHS GROUP INC | 441.9K | 0.9% |
| NORTHERN TRUST CORP | 439.2K | 0.9% |
| HighMark Wealth Management LLC | 425.0K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| First Light Asset Management, LLC | Increased | 5.4M | 8.1M | +2.8M |
| CADIAN CAPITAL MANAGEMENT, LP | Increased | 1.9M | 3.3M | +1.5M |
| First Eagle Investment Management, LLC | Increased | 638.9K | 1.5M | +898.9K |
| MORGAN STANLEY | Reduced | 712.5K | 130.9K | -581.6K |
| MARSHALL WACE, LLP | Increased | 168.1K | 690.3K | +522.2K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 472.6K | 44.1K | -428.5K |
| Qube Research & Technologies Ltd | Sold Out | 371.5K | 0 | -371.5K |
| HighMark Wealth Management LLC | Increased | 159.8K | 425.0K | +265.2K |
| Nuveen, LLC | Reduced | 1.3M | 1.0M | -259.5K |
| BlackRock, Inc. | Increased | 3.4M | 3.7M | +247.7K |
| ALGERT GLOBAL LLC | Sold Out | 230.4K | 0 | -230.4K |
| Assenagon Asset Management S.A. | Sold Out | 224.0K | 0 | -224.0K |
| Pier Capital, LLC | Reduced | 476.8K | 263.8K | -213.0K |
| GILDER GAGNON HOWE & CO LLC | Increased | 1.0M | 1.3M | +204.5K |
| NEXT CENTURY GROWTH INVESTORS LLC | Increased | 384.0K | 585.3K | +201.3K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 57.7K | 253.8K | +196.1K |
| Granahan Investment Management, LLC | Increased | 1.7M | 1.9M | +192.1K |
| CITADEL ADVISORS LLC | Sold Out | 188.2K | 0 | -188.2K |
| GOLDMAN SACHS GROUP INC | Reduced | 622.4K | 441.9K | -180.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 413.5K | 548.3K | +134.8K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 951.7K | 1.1M | +125.1K |
| PARADIGM CAPITAL MANAGEMENT INC/NY | Increased | 1.1M | 1.2M | +106.7K |
| LAZARD ASSET MANAGEMENT LLC | Sold Out | 102.5K | 0 | -102.5K |
| Balyasny Asset Management L.P. | New | 0 | 100.4K | +100.4K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 618.9K | 708.3K | +89.4K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Reduced | 1.2M | 1.2M | -86.0K |
| STATE STREET CORP | Increased | 1.1M | 1.2M | +84.5K |
| UBS Group AG | Increased | 48.3K | 131.8K | +83.5K |
| Man Group plc | Sold Out | 82.8K | 0 | -82.8K |
| NORTHERN TRUST CORP | Increased | 358.3K | 439.2K | +80.8K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.8M | 1.8M | +74.2K |
| Engineers Gate Manager LP | Reduced | 94.9K | 29.4K | -65.5K |
| JANE STREET GROUP, LLC | New | 0 | 64.8K | +64.8K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Increased | 212.5K | 271.4K | +58.9K |
| TWO SIGMA INVESTMENTS, LP | Sold Out | 58.1K | 0 | -58.1K |
| Susquehanna Portfolio Strategies, LLC | Sold Out | 54.0K | 0 | -54.0K |
| Point72 Asset Management, L.P. | Reduced | 840.3K | 790.3K | -50.0K |
| BROWN ADVISORY INC | Reduced | 2.1M | 2.1M | -45.2K |
| Parkman Healthcare Partners LLC | Reduced | 373.6K | 328.7K | -44.9K |
| Brevan Howard Capital Management LP | Sold Out | 43.1K | 0 | -43.1K |
| XTX Topco Ltd | Reduced | 83.2K | 40.1K | -43.0K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 63.2K | 24.7K | -38.5K |
| Squarepoint Ops LLC | Increased | 84.2K | 118.1K | +33.9K |
| ADAR1 Capital Management, LLC | Increased | 12.6K | 45.0K | +32.4K |
| RAYMOND JAMES FINANCIAL INC | Reduced | 50.4K | 18.4K | -31.9K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | 0 | 31.5K | +31.5K |
| MERCER GLOBAL ADVISORS INC /ADV | Increased | 11.8K | 42.1K | +30.3K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 772.6K | 742.9K | -29.8K |
| JPMORGAN CHASE & CO | Reduced | 125.1K | 95.7K | -29.4K |
| Cinctive Capital Management LP | Increased | 95.5K | 123.5K | +28.0K |
| Magnetar Financial LLC | New | 0 | 27.7K | +27.7K |
| Palumbo Wealth Management LLC | Increased | 35.5K | 63.2K | +27.6K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 87.3K | 59.7K | -27.5K |
| ALLSTATE CORP | New | 0 | 27.5K | +27.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 315.5K | 342.8K | +27.3K |
| WELLS FARGO & COMPANY/MN | Increased | 14.6K | 40.7K | +26.1K |
| DRW Securities, LLC | Sold Out | 25.8K | 0 | -25.8K |
| Manchester Capital Management LLC | Sold Out | 25.1K | 0 | -25.1K |
| Legato Capital Management LLC | Increased | 66.6K | 91.4K | +24.8K |
| Quantinno Capital Management LP | Increased | 29.5K | 53.6K | +24.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.