SI-BONE INC (SIBN) Institutional Shareholders
SI-BONE INC (SIBN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $771.09M in SIBN holdings during the latest filing period.
First Light Asset Management, Llc is currently the largest disclosed institutional shareholder of SIBN tracked by InsiderSet, reporting ownership valued at approximately $132.65M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $146.63M, representing an estimated gain of +10.54% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed SIBN value among the investors covered in this analysis. Major shareholders include First Light Asset Management, Llc, Blackrock, Inc., Cadian Capital Management, Lp, and several other long-term asset managers with concentrated positions in SI-BONE INC (SIBN).
This page ranks the largest institutional SIBN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
163
Total Reported Value
$771.09M
Largest Holder
First Light Asset Management, Llc
Largest Position
$132.65M
Insider Transactions (90d)
21
Latest Filing Quarter
Q2 2026
New Institutional Positions
45
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| First Light Asset Management, Llc | 8.06% | 8,127,985 | $132,648,715 | $146,628,849 | +$13,980,134 | +10.54% | |
| Blackrock, Inc. | 0.00% | 3,676,259 | $59,996,547 | $66,319,712 | +$6,323,165 | +10.54% | |
| Cadian Capital Management, Lp | 4.13% | 3,347,574 | $54,632,408 | $60,390,235 | +$5,757,827 | +10.54% | |
| American Century Companies Inc | 0.02% | 2,510,963 | $40,978,947 | $45,297,773 | +$4,318,826 | +10.54% | |
| Brown Advisory Inc | 0.05% | 2,077,134 | $33,898,832 | $37,471,497 | +$3,572,665 | +10.54% | |
| Granahan Investment Management, Llc | 1.12% | 1,931,182 | $31,516,890 | $34,838,523 | +$3,321,633 | +10.54% | |
| Vanguard Capital Management Llc | 0.00% | 1,838,499 | $30,004,304 | $33,166,522 | +$3,162,218 | +10.54% | |
| Impax Asset Management Group Plc | 0.15% | 1,425,010 | $23,256,163 | $25,707,180 | +$2,451,017 | +10.54% | |
| Gilder Gagnon Howe & Co Llc | 0.21% | 1,253,042 | $20,449,645 | $22,604,878 | +$2,155,233 | +10.54% | |
| Paradigm Capital Management Inc/Ny | 0.55% | 1,233,200 | $20,125,824 | $22,246,928 | +$2,121,104 | +10.54% | |
| State Street Corp | 0.00% | 1,214,286 | $19,849,376 | $21,905,719 | +$2,056,343 | +10.36% | |
| Silvercrest Asset Management Group Llc | 0.12% | 1,158,576 | $18,907,960 | $20,900,711 | +$1,992,751 | +10.54% | |
| Geode Capital Management, Llc | 0.00% | 1,076,839 | $17,577,360 | $19,426,176 | +$1,848,816 | +10.52% | |
| Nuveen, Llc | 0.00% | 1,026,036 | $16,744,908 | $18,509,689 | +$1,764,781 | +10.54% | |
| Champlain Investment Partners, Llc | 0.38% | 896,462 | $14,630,260 | $16,172,174 | +$1,541,914 | +10.54% | |
| Point72 Asset Management, L.P. | 0.02% | 790,323 | $12,898,071 | $14,257,427 | +$1,359,356 | +10.54% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.02% | 768,941 | $12,549,117 | $13,871,696 | +$1,322,579 | +10.54% |
| Wellington Management Group Llp | 0.00% | 742,857 | $12,123,426 | $13,401,140 | +$1,277,714 | +10.54% | |
| Dimensional Fund Advisors Lp | 0.00% | 708,319 | $11,562,070 | $12,778,075 | +$1,216,005 | +10.52% | |
| Marshall Wace, Llp | 0.01% | 690,288 | $11,265,501 | $12,452,796 | +$1,187,295 | +10.54% | |
| Next Century Growth Investors Llc | 0.51% | 585,289 | $9,551,916 | $10,558,614 | +$1,006,698 | +10.54% | |
| Vanguard Portfolio Management Llc | 0.00% | 548,287 | $8,948,044 | $9,891,097 | +$943,053 | +10.54% | |
| Goldman Sachs Group Inc | 0.00% | 441,912 | $7,212,004 | $7,972,092 | +$760,088 | +10.54% | |
| Northern Trust Corp | 0.00% | 439,161 | $7,167,107 | $7,922,464 | +$755,357 | +10.54% | |
| Highmark Wealth Management Llc | 2.32% | 425,049 | $6,936,799 | $7,667,884 | +$731,085 | +10.54% | |
| Bank Of America Corp | 0.00% | 421,528 | $6,879,336 | $7,604,365 | +$725,029 | +10.54% | |
| Peregrine Capital Management Llc | 0.22% | 407,363 | $6,648,164 | $7,348,829 | +$700,665 | +10.54% | |
| Royce & Associates Lp | 0.05% | 395,088 | $6,447,836 | $7,127,388 | +$679,552 | +10.54% | |
| Millennium Management Llc | 0.00% | 364,286 | $5,945,148 | $6,571,719 | +$626,571 | +10.54% | |
| Charles Schwab Investment Management Inc | 0.00% | 342,784 | $5,594,235 | $6,183,823 | +$589,588 | +10.54% | |
| Parkman Healthcare Partners Llc | 0.55% | 328,686 | $5,364,156 | $5,929,495 | +$565,339 | +10.54% | |
| Tocqueville Asset Management L.P. | 0.07% | 304,000 | $4,961,280 | $5,484,160 | +$522,880 | +10.54% | |
| Vanguard Fiduciary Trust Co | 0.00% | 288,877 | $4,714,473 | $5,211,341 | +$496,868 | +10.54% | |
| Sei Investments Co | 0.00% | 274,747 | $4,483,872 | $4,956,436 | +$472,564 | +10.54% | |
| Essex Investment Management Co Llc | 0.58% | 271,404 | $4,429,313 | $4,896,128 | +$466,815 | +10.54% | |
| Harbor Capital Advisors, Inc. | 0.30% | 269,505 | $4,398,000 | $4,861,870 | +$463,870 | +10.55% | |
| Pier Capital, Llc | 0.57% | 263,781 | $4,304,906 | $4,758,609 | +$453,703 | +10.54% | |
| Aqr Capital Management Llc | 0.00% | 253,848 | $4,142,800 | $4,579,418 | +$436,618 | +10.54% | |
| Vela Investment Management, Llc | 0.81% | 201,094 | $3,281,854 | $3,627,736 | +$345,882 | +10.54% | |
| D. E. Shaw & Co., Inc. | 0.00% | 185,868 | $3,033,366 | $3,353,059 | +$319,693 | +10.54% | |
| Victory Capital Management Inc | 0.00% | 145,170 | $2,369,174 | $2,618,867 | +$249,693 | +10.54% | |
| Nomura Asset Management International Inc. | 0.00% | 133,141 | $2,173,000 | $2,401,864 | +$228,864 | +10.53% | |
| Ubs Group Ag | 0.00% | 131,779 | $2,150,633 | $2,377,293 | +$226,660 | +10.54% | |
| Tudor Investment Corp Et Al | 0.01% | 131,414 | $2,144,676 | $2,370,709 | +$226,033 | +10.54% | |
| Morgan Stanley | 0.00% | 130,913 | $2,136,502 | $2,361,671 | +$225,169 | +10.54% | |
| Cinctive Capital Management Lp | 0.08% | 123,517 | $2,015,797 | $2,228,247 | +$212,450 | +10.54% | |
| Russell Investments Group, Ltd. | 0.00% | 121,716 | $1,986,413 | $2,195,757 | +$209,344 | +10.54% | |
| Bank Of New York Mellon Corp | 0.00% | 120,569 | $1,967,685 | $2,175,065 | +$207,380 | +10.54% | |
| Squarepoint Ops Llc | 0.00% | 118,128 | $1,927,849 | $2,131,029 | +$203,180 | +10.54% | |
| Balyasny Asset Management L.P. | 0.00% | 100,364 | $1,637,941 | $1,810,567 | +$172,626 | +10.54% |
Frequently asked questions about SIBN
Who owns the most SIBN stock?
The largest holders of SIBN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SI-BONE INC (SIBN).
Is SIBN widely held by superinvestors?
Many widely followed stocks like SIBN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SIBN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.