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 $536.00M 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 $67.61M in its March 31, 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 $95.07M, representing an estimated gain of +40.62% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed SIBN value among the investors covered in this analysis. Major shareholders include First Light Asset Management, Llc, Blackrock, Inc., American Century Companies Inc, 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
171
Total Reported Value
$536.00M
Largest Holder
First Light Asset Management, Llc
Largest Position
$67.61M
Insider Transactions (90d)
24
Latest Filing Quarter
Q2 2026
New Institutional Positions
151
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 | 6.06% | 5,353,190 | $67,610,790 | $95,072,654 | +$27,461,864 | +40.62% | |
| Blackrock, Inc. | 0.00% | 3,428,541 | $43,302,473 | $60,890,888 | +$17,588,415 | +40.62% | |
| American Century Companies Inc | 0.02% | 2,509,065 | $31,689,516 | $44,560,994 | +$12,871,478 | +40.62% | |
| Brown Advisory Inc | 0.04% | 2,122,332 | $26,805,057 | $37,692,616 | +$10,887,559 | +40.62% | |
| Cadian Capital Management, Lp | 2.90% | 1,887,472 | $23,838,771 | $33,521,503 | +$9,682,732 | +40.62% | |
| Vanguard Capital Management Llc | 0.00% | 1,764,313 | $22,283,273 | $31,334,199 | +$9,050,926 | +40.62% | |
| Granahan Investment Management, Llc | 1.06% | 1,739,097 | $21,964,795 | $30,886,363 | +$8,921,568 | +40.62% | |
| Impax Asset Management Group Plc | 0.13% | 1,425,010 | $17,997,876 | $25,308,178 | +$7,310,302 | +40.62% | |
| Nuveen, Llc | 0.00% | 1,285,511 | $16,236,003 | $22,830,675 | +$6,594,672 | +40.62% | |
| Silvercrest Asset Management Group Llc | 0.11% | 1,244,584 | $15,719,096 | $22,103,812 | +$6,384,716 | +40.62% | |
| State Street Corp | 0.00% | 1,129,815 | $14,269,563 | $20,065,514 | +$5,795,951 | +40.62% | |
| Paradigm Capital Management Inc/Ny | 0.54% | 1,126,500 | $14,227,695 | $20,006,640 | +$5,778,945 | +40.62% | |
| Gilder Gagnon Howe & Co Llc | 0.16% | 1,048,516 | $13,242,757 | $18,621,644 | +$5,378,887 | +40.62% | |
| Geode Capital Management, Llc | 0.00% | 951,728 | $12,022,704 | $16,902,689 | +$4,879,985 | +40.59% | |
| Champlain Investment Partners, Llc | 0.14% | 877,605 | $11,084,151 | $15,586,265 | +$4,502,114 | +40.62% | |
| Point72 Asset Management, L.P. | 0.02% | 840,346 | $10,613,570 | $14,924,545 | +$4,310,975 | +40.62% | |
| Wellington Management Group Llp | 0.00% | 772,612 | $9,758,090 | $13,721,589 | +$3,963,499 | +40.62% | |
| Morgan Stanley | 0.00% | 712,510 | $8,999,002 | $12,654,178 | +$3,655,176 | +40.62% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.01% | 638,941 | $8,069,825 | $11,347,592 | +$3,277,767 | +40.62% |
| Goldman Sachs Group Inc | 0.00% | 622,442 | $7,861,442 | $11,054,570 | +$3,193,128 | +40.62% | |
| Dimensional Fund Advisors Lp | 0.00% | 618,939 | $7,815,759 | $10,992,357 | +$3,176,598 | +40.64% | |
| Peregrine Capital Management Llc | 0.22% | 407,363 | $6,648,164 | $7,234,767 | +$586,603 | +8.82% | |
| Pier Capital, Llc | 0.99% | 476,805 | $6,022,047 | $8,468,057 | +$2,446,010 | +40.62% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 472,619 | $5,969,178 | $8,393,713 | +$2,424,535 | +40.62% |
| Bank Of America Corp | 0.00% | 419,473 | $5,297,944 | $7,449,840 | +$2,151,896 | +40.62% | |
| Vanguard Portfolio Management Llc | 0.00% | 413,494 | $5,222,429 | $7,343,653 | +$2,121,224 | +40.62% | |
| Next Century Growth Investors Llc | 0.35% | 383,958 | $4,849,389 | $6,819,094 | +$1,969,705 | +40.62% | |
| Parkman Healthcare Partners Llc | 0.49% | 373,553 | $4,717,974 | $6,634,301 | +$1,916,327 | +40.62% | |
| Qube Research & Technologies Ltd | 0.01% | 371,526 | $4,692,373 | $6,598,302 | +$1,905,929 | +40.62% | |
| Royce & Associates Lp | 0.05% | 371,082 | $4,686,766 | $6,590,416 | +$1,903,650 | +40.62% | |
| Millennium Management Llc | 0.00% | 369,303 | $4,664,297 | $6,558,821 | +$1,894,524 | +40.62% | |
| Northern Trust Corp | 0.00% | 358,337 | $4,525,795 | $6,364,065 | +$1,838,270 | +40.62% | |
| Charles Schwab Investment Management Inc | 0.00% | 315,471 | $3,984,399 | $5,602,765 | +$1,618,366 | +40.62% | |
| Tocqueville Asset Management L.P. | 0.06% | 304,000 | $3,839,520 | $5,399,040 | +$1,559,520 | +40.62% | |
| Sei Investments Co | 0.00% | 284,769 | $3,596,645 | $5,057,497 | +$1,460,852 | +40.62% | |
| Vanguard Fiduciary Trust Co | 0.00% | 274,691 | $3,469,347 | $4,878,512 | +$1,409,165 | +40.62% | |
| Essex Investment Management Co Llc | 0.42% | 212,488 | $2,683,723 | $3,773,787 | +$1,090,064 | +40.62% | |
| D. E. Shaw & Co., Inc. | 0.00% | 189,028 | $2,387,424 | $3,357,137 | +$969,713 | +40.62% | |
| Citadel Advisors Llc | 0.00% | 188,226 | $2,377,294 | $3,342,894 | +$965,600 | +40.62% | |
| Vela Investment Management, Llc | 0.60% | 187,160 | $2,363,831 | $3,323,962 | +$960,131 | +40.62% | |
| Marshall Wace, Llp | 0.00% | 168,128 | $2,123,455 | $2,985,953 | +$862,498 | +40.62% | |
| Highmark Wealth Management Llc | 0.82% | 159,832 | $2,018,678 | $2,838,616 | +$819,938 | +40.62% | |
| Victory Capital Management Inc | 0.00% | 151,960 | $1,919,255 | $2,698,810 | +$779,555 | +40.62% | |
| Nomura Asset Management International Inc. | 0.00% | 138,247 | $1,746,000 | $2,455,267 | +$709,267 | +40.62% | |
| Tudor Investment Corp Et Al | 0.01% | 130,116 | $1,643,365 | $2,310,860 | +$667,495 | +40.62% | |
| Russell Investments Group, Ltd. | 0.00% | 122,804 | $1,551,021 | $2,180,999 | +$629,978 | +40.62% | |
| Lazard Asset Management Llc | 0.00% | 102,499 | $1,294,562 | $1,820,382 | +$525,820 | +40.62% | |
| Bank Of New York Mellon Corp | 0.00% | 100,642 | $1,271,107 | $1,787,402 | +$516,295 | +40.62% | |
| Cinctive Capital Management Lp | 0.08% | 95,540 | $1,206,670 | $1,696,790 | +$490,120 | +40.62% | |
| Engineers Gate Manager Lp | 0.01% | 94,924 | $1,198,890 | $1,685,850 | +$486,960 | +40.62% |
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.