SIBNNasdaqSurgical & Medical Instruments & ApparatusFiscal year ends December 31
SI-BONE, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026
$19.66−0.02 (-0.10%)
Close on Oct 19, 2026
- Market cap
- $874.42M
- P/E (TTM)
- –
- Dividend yield
- 0.00%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
48M of 45M shares
Institutional holders
168
22 new, 29 sold out
Net institutional buying
5M
In Q2 2026
Insider trades, 12 months
0 buys · 98 sales
Net sold $10.53M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Mathew P. Arens | 8,120,986 | 18.36% | 13G (passive) amendment | Apr 30, 2026 |
| BlackRock, Inc. | 3,558,735 | 8.00% | 13G (passive) amendment | Jun 30, 2026 |
| Cadian Capital Management GP, LLC | 3,347,574 | 7.50% | 13G (passive) | Jun 30, 2026 |
| American Century Investment Management, Inc. | 2,838,107 | 6.60% | 13G (passive) amendment | Sep 30, 2025 |
| Brown Advisory Inc | 2,513,268 | 5.79% | 13G (passive) amendment | Dec 31, 2025 |
| American Century Companies, Inc. | 2,300,508 | 5.30% | 13G (passive) amendment | Dec 31, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of SIBN | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| First Light Asset Management, LLC | 8,127,985 | 18.14% | $132.65M | +2,774,795 | 8.06% |
| BlackRock, Inc. | 3,676,259 | 8.20% | $60.00M | +247,718 | 0.00% |
| Cadian Capital Management, LP | 3,347,574 | 7.47% | $54.63M | +1,460,102 | 4.13% |
| American Century Companies Inc | 2,510,963 | 5.60% | $40.98M | +1,898 | 0.02% |
| Brown Advisory Inc | 2,077,134 | 4.63% | $33.90M | −45,198 | 0.05% |
| Granahan Investment Management, LLC | 1,931,182 | 4.31% | $31.52M | +192,085 | 1.12% |
| Vanguard Capital Management LLC | 1,838,499 | 4.10% | $30.00M | +74,186 | 0.00% |
| First Eagle Investment Management, LLC | 1,537,882 | 3.43% | $25.10M | +898,941 | 0.02% |
| Impax Asset Management Group plc | 1,425,010 | 3.18% | $23.26M | – | 0.15% |
| Gilder Gagnon Howe & Co LLC | 1,253,042 | 2.80% | $20.45M | +204,526 | 0.21% |
| Paradigm Capital Management Inc/Ny | 1,233,200 | 2.75% | $20.13M | +106,700 | 0.55% |
| State Street Corp | 1,214,286 | 2.71% | $19.85M | +84,471 | 0.00% |
| Silvercrest Asset Management Group LLC | 1,158,576 | 2.59% | $18.91M | −86,008 | 0.12% |
| Geode Capital Management, LLC | 1,076,839 | 2.40% | $17.58M | +125,111 | 0.00% |
| Nuveen, LLC | 1,026,036 | 2.29% | $16.74M | −259,475 | 0.00% |
| Champlain Investment Partners, LLC | 896,462 | 2.00% | $14.63M | +18,857 | 0.38% |
| Point72 Asset Management, L.P. | 790,323 | 1.76% | $12.90M | −50,023 | 0.01% |
| Wellington Management Group Llp | 742,857 | 1.66% | $12.12M | −29,755 | 0.00% |
| Dimensional Fund Advisors LP | 708,319 | 1.58% | $11.56M | +89,380 | 0.00% |
| Marshall Wace, Llp | 690,288 | 1.54% | $11.27M | +522,160 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 168 | 48M | 100.0% | 22 / 82 | 46 / 29 | 9M | 4M |
| Q1 2026 | 180 | 43M | 96.8% | 32 / 64 | 68 / 32 | 9M | 5M |
| Q4 2025 | 183 | 41M | 92.3% | 30 / 73 | 61 / 18 | 8M | 7M |
| Q3 2025 | 175 | 42M | 93.8% | 19 / 65 | 65 / 22 | 5M | 4M |
| Q2 2025 | 178 | 41M | 91.2% | 38 / 60 | 55 / 17 | 5M | 5M |
| Q1 2025 | 158 | 40M | 90.3% | 34 / 58 | 38 / 17 | 5M | 3M |
| Q4 2024 | 143 | 40M | 88.8% | 30 / 50 | 46 / 17 | 4M | 4M |
| Q3 2024 | 133 | 41M | 91.2% | 21 / 52 | 37 / 22 | 8M | 3M |
| Q2 2024 | 137 | 41M | 91.5% | 20 / 62 | 39 / 28 | 3M | 5M |
| Q1 2024 | 146 | 43M | 95.0% | 24 / 55 | 49 / 31 | 8M | 5M |
| Q4 2023 | 155 | 40M | 90.3% | 27 / 67 | 44 / 21 | 7M | 5M |
| Q3 2023 | 149 | 39M | 86.9% | 13 / 71 | 41 / 32 | 4M | 3M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of SIBN | Value | % of fund | As of |
|---|---|---|---|---|---|
| Small Cap Growth Fund | 1,895,954 | 4.23% | $33.67M | 0.60% | Jul 31, 2026 |
| Impax Small Cap Fund | 1,425,010 | 3.18% | $23.26M | 2.45% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 1,337,048 | 2.98% | $21.82M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,140,221 | 2.54% | $18.61M | 0.02% | Jun 30, 2026 |
| First Eagle Small Cap Opportunity Fund | 673,476 | 1.50% | $11.96M | 0.41% | Jul 31, 2026 |
| College Retirement Equities Fund - Total Global Stock Account | 578,354 | 1.29% | $9.44M | 0.01% | Jun 30, 2026 |
| JNL Multi-Manager Small Cap Growth Fund | 549,385 | 1.23% | $8.97M | 0.35% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 480,049 | 1.07% | $8.53M | 0.03% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 457,267 | 1.02% | $7.46M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF | 404,383 | 0.90% | $6.60M | 0.04% | Jun 30, 2026 |
| Brown Advisory Small-Cap Growth Fund | 376,277 | 0.84% | $6.14M | 1.03% | Jun 30, 2026 |
| Champlain Small Company Fund | 340,135 | 0.76% | $5.55M | 0.67% | Jun 30, 2026 |
| SmallCap Growth Fund I | 315,427 | 0.70% | $5.60M | 0.23% | Jul 31, 2026 |
| Victory Small Cap Stock Fund | 300,269 | 0.67% | $5.33M | 0.56% | Jul 31, 2026 |
| Embark Small Cap Equity Fund | 270,156 | 0.60% | $4.80M | 0.76% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Laura Francis | Chief Executive Officer, Director | 785,391 | 1.75% | Aug 26, 2026 |
| Anshul Maheshwari | Chief Op & Financial Officer | 223,284 | 0.50% | Aug 26, 2026 |
| Michael A. Pisetsky | SVP, Ops & Adm/Chief Legal Ofr | 273,650 | 0.61% | Aug 18, 2026 |
| Jeffrey W. Dunn | Director | 117,130 | 0.26% | Sep 3, 2026 |
| Jeryl L. Hilleman | Director | 43,772 | 0.10% | Jun 9, 2026 |
| Timothy E. Davis JR | Director | 76,679 | 0.17% | Jun 8, 2026 |
| Thomas A. West | Director | 37,947 | 0.08% | Jun 8, 2026 |
| John Gordon Freund | Director | 146,025 | 0.33% | Jun 8, 2026 |
| Mika Nishimura | Director | 43,673 | 0.10% | Jun 8, 2026 |
| Greg K. Hinckley | Director | 105,135 | 0.23% | Apr 9, 2026 |
| Daniel W. Wolf | Director | 25,857 | 0.06% | Jun 6, 2025 |
| Anthony J. Recupero | – | 243,418 | 0.54% | Feb 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Jeffrey W. Dunn Director | Sep 1, 2026 | Option exercise | +1,367 | $4.68 | $6.40K | 36,057 |
| Jeffrey W. Dunn Director | Sep 1, 2026 | Sale(10b5-1 plan) | −18,633 | $18.91 | $352.35K | 17,424 |
| Jeffrey W. Dunn Director | Sep 1, 2026 | Sale(10b5-1 plan) | −1,367 | $18.91 | $25.85K | 16,057 |
| Jeffrey W. Dunn Director | Sep 1, 2026 | Option exercise | +18,633 | $4.68 | $87.20K | 34,690 |
| Laura Francis Chief Executive Officer, Director | Aug 24, 2026 | Sale(10b5-1 plan) | −25,972 | $20.12 | $522.56K | 291,491 |
| Anshul Maheshwari Chief Op & Financial Officer | Aug 24, 2026 | Sale(10b5-1 plan) | −11,636 | $20.11 | $234.00K | 223,284 |
| Laura Francis Chief Executive Officer, Director | Aug 21, 2026 | Sale(10b5-1 plan) | −3,923 | $20.02 | $78.54K | 317,463 |
| Anshul Maheshwari Chief Op & Financial Officer | Aug 21, 2026 | Sale(10b5-1 plan) | −11,228 | $20.02 | $224.78K | 234,920 |
| Laura Francis Chief Executive Officer, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −51,884 | $19.46 | $1.01M | 321,386 |
| Anshul Maheshwari Chief Op & Financial Officer | Aug 19, 2026 | Sale(10b5-1 plan) | −5,747 | $19.55 | $112.35K | 246,148 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Aug 17, 2026 | Sale | −1,871 | $18.65 | $34.89K | 273,650 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Aug 17, 2026 | Sale | −1,854 | $18.62 | $34.52K | 275,521 |
| Anshul Maheshwari Chief Financial Officer | Aug 17, 2026 | Sale | −2,189 | $18.62 | $40.76K | 251,895 |
| Anshul Maheshwari Chief Financial Officer | Aug 17, 2026 | Sale | −2,476 | $18.68 | $46.25K | 254,084 |
| Laura Francis Chief Executive Officer, Director | Aug 17, 2026 | Sale | −3,652 | $18.66 | $68.15K | 495,900 |
| Laura Francis Chief Executive Officer, Director | Aug 17, 2026 | Sale | −3,892 | $18.66 | $72.62K | 499,552 |
| Laura Francis Chief Executive Officer, Director | Aug 17, 2026 | Sale | −3,203 | $18.66 | $59.77K | 492,697 |
| Laura Francis Chief Executive Officer, Director | Aug 17, 2026 | Sale | −2,236 | $18.68 | $41.77K | 490,461 |
| Laura Francis Chief Executive Officer, Director | Aug 17, 2026 | Sale | −1,973 | $18.63 | $36.76K | 493,900 |
| Jeffrey W. Dunn Director | Aug 3, 2026 | Option exercise | +20,000 | $4.68 | $93.60K | 36,057 |
| Jeffrey W. Dunn Director | Aug 3, 2026 | Sale(10b5-1 plan) | −20,000 | $18.46 | $369.20K | 16,057 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Jul 2, 2026 | Sale | −1,799 | $16.70 | $30.04K | 278,710 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Jul 2, 2026 | Sale | −34 | $16.86 | $573 | 278,676 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Jul 2, 2026 | Sale | −1,301 | $16.73 | $21.77K | 277,375 |
| Anshul Maheshwari Chief Financial Officer | Jul 2, 2026 | Sale | −1,560 | $16.73 | $26.10K | 256,560 |
| Anshul Maheshwari Chief Financial Officer | Jul 2, 2026 | Sale | −1,757 | $16.80 | $29.52K | 258,120 |
| Jeffrey W. Dunn Director | Jun 5, 2026 | Sale | −3,575 | $15.25 | $54.52K | 16,057 |
| Jeryl L. Hilleman Director | Jun 4, 2026 | Award | +10,957 | – | – | 43,772 |
| Thomas A. West Director | Jun 4, 2026 | Award | +10,957 | – | – | 37,947 |
| Jeffrey W. Dunn Director | Jun 4, 2026 | Award | +10,957 | – | – | 20,114 |
| Timothy E. Davis JR Director | Jun 4, 2026 | Award | +10,957 | – | – | 76,679 |
| John Gordon Freund Director | Jun 4, 2026 | Award | +10,957 | – | – | 54,258 |
| Mika Nishimura Director | Jun 4, 2026 | Award | +10,957 | – | – | 43,673 |
| Timothy E. Davis JR Director | May 29, 2026 | Sale | −3,500 | $14.14 | $49.49K | 65,722 |
| Timothy E. Davis JR Director | May 28, 2026 | Sale | −3,780 | $14.47 | $54.70K | 69,222 |
| Timothy E. Davis JR Director | May 28, 2026 | Option exercise | +12,064 | $4.32 | $52.12K | 73,002 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | May 18, 2026 | Sale | −1,872 | $14.63 | $27.39K | 280,968 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | May 18, 2026 | Sale | −1,854 | $14.64 | $27.14K | 280,509 |
| Anshul Maheshwari Chief Financial Officer | May 18, 2026 | Sale | −2,477 | $14.71 | $36.44K | 260,671 |
| Anshul Maheshwari Chief Financial Officer | May 18, 2026 | Sale | −2,189 | $14.65 | $32.07K | 259,877 |
| Laura Francis Chief Executive Officer, Director | May 18, 2026 | Sale | −2,236 | $14.67 | $32.80K | 538,240 |
| Laura Francis Chief Executive Officer, Director | May 18, 2026 | Sale | −3,893 | $14.75 | $57.42K | 540,476 |
| Laura Francis Chief Executive Officer, Director | May 18, 2026 | Sale | −1,973 | $14.57 | $28.75K | 536,267 |
| Laura Francis Chief Executive Officer, Director | May 18, 2026 | Sale | −3,652 | $14.75 | $53.87K | 532,615 |
| Laura Francis Chief Executive Officer, Director | May 18, 2026 | Sale | −3,203 | $14.73 | $47.18K | 503,444 |
| Jeffrey W. Dunn Director | May 4, 2026 | Sale | −337 | $13.15 | $4.43K | 9,157 |
| Greg K. Hinckley Director | Apr 7, 2026 | Option exercise | +3,085 | $5.94 | $18.32K | 105,135 |
| Anshul Maheshwari Chief Financial Officer | Apr 2, 2026 | Sale | −1,758 | $12.92 | $22.71K | 264,708 |
| Anshul Maheshwari Chief Financial Officer | Apr 2, 2026 | Sale | −1,560 | $12.81 | $19.98K | 263,148 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Apr 2, 2026 | Sale | −34 | $12.61 | $429 | 282,840 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Apr 2, 2026 | Sale | −1,301 | $12.86 | $16.73K | 282,874 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Apr 1, 2026 | Sale | −1,799 | $12.95 | $23.30K | 284,175 |
| Mika Nishimura Director | Mar 12, 2026 | Sale | −4,100 | $13.83 | $56.70K | 32,716 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Feb 17, 2026 | Sale | −2,556 | $15.39 | $39.34K | 304,174 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Feb 17, 2026 | Sale | −3,296 | $15.41 | $50.79K | 300,878 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Feb 17, 2026 | Sale | −1,481 | $15.32 | $22.69K | 299,397 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Feb 17, 2026 | Sale | −11,569 | $15.34 | $177.47K | 287,828 |
| Michael A. Pisetsky SVP, Ops & Adm/Chief Legal Ofr | Feb 17, 2026 | Sale | −1,854 | $15.31 | $28.38K | 285,974 |
| Anshul Maheshwari Chief Financial Officer | Feb 17, 2026 | Sale | −3,891 | $15.41 | $59.96K | 266,466 |
| Anshul Maheshwari Chief Financial Officer | Feb 17, 2026 | Sale | −3,065 | $15.46 | $47.38K | 270,357 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| & Laura Francis Joint Rev Tru/A Dtd 01/03/2003 David Director, Officer | Oct 13, 2026 | 38,006 | $736.18K | Oct 12, 2026 | Restricted Stock Units |
| Maheshwari Anshul Officer | Oct 5, 2026 | 1,731 | $31.30K | Oct 5, 2026 | Restricted Stock Units |
| & Laura Francis Joint Rev Tru/A Dtd 01/03/2003 David Director, Officer | Aug 24, 2026 | 25,972 | $518.40K | Aug 24, 2026 | Restricted Stock Units |
| Maheshwari Anshul Officer | Aug 24, 2026 | 11,636 | $232.25K | Aug 24, 2026 | RSU and PSU |
| Maheshwari Anshul Officer | Aug 21, 2026 | 11,228 | $218.72K | Aug 21, 2026 | RSU/PSU |
| & Laura Francis Joint Rev Tru/A Dtd 01/03/2003 David Director, Officer | Aug 21, 2026 | 3,923 | $76.42K | Aug 21, 2026 | Performance Stock Units |
| & Laura Francis Joint Rev Tru/A Dtd 01/03/2003 David Director, Officer | Aug 20, 2026 | 51,884 | $1.03M | Aug 20, 2026 | Restricted Stock Units |
| Maheshwari Anshul Officer | Aug 19, 2026 | 5,747 | $110.00K | Aug 19, 2026 | Restricted Stock Units |
| Jeffrey W. Dunn Living Trust Dtd 05/17/2012 The Director | Aug 3, 2026 | 80,000 | $1.42M | Aug 3, 2026 | Exercise of Stock Options |
| E. Davis Timothy Jr Director | May 29, 2026 | 3,500 | $49.49K | May 29, 2026 | Restricted Stock |
| Nishimura Mika Director | Mar 12, 2026 | 4,100 | $56.70K | Mar 12, 2026 | Restricted Stock |
| Jeffrey W. Dunn Living Trust The Director | Jan 8, 2026 | 60,000 | $1.28M | Jan 8, 2026 | Restricted Stock Units |
| Maheshwari Anshul Officer | Jan 2, 2026 | 1,552 | $30.61K | Jan 2, 2026 | Restricted Stock Units |
| Jeffrey W. Dunn Living Trust The Director | Dec 8, 2025 | 20,000 | $393.60K | Dec 8, 2025 | Exercise of Stock Options |
| Maheshwari Anshul Officer | Nov 21, 2025 | 19,842 | $370.65K | Nov 21, 2025 | Restricted Stock Units |