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Equibles

SIBN

SI-BONE, Inc.

Company with tickers: SIBN

CIK
1459839
CUSIP
825704109
Shares Outstanding
44,349,283
13F Activity (30d)
124 filings 119 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 179
Total Value: $553,403,435
Total Shares: 43,816,592
Showing 1–100 of 183 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 179 13F filers · Δ vs Dec 31, 2025
Top Holder
12.2%
Jun 2023 → Mar 2026 · range 8.2% – 18.3%
+0.2 pts
Top 5
34.9%
Jun 2023 → Mar 2026 · range 33.7% – 57.3%
−2.9 pts
Top 10
51.9%
Jun 2023 → Mar 2026 · range 51.9% – 79.3%
−1.0 pts
HHI
403
Jun 2023 → Mar 2026 · range 355 – 891
Broadly held−6

Quarterly Activity

vs Dec 31, 2025
New
30
Increased
64
Decreased
69
Sold Out
35
Unchanged
16
Holder count: -5
Institutional value: -32.7%
Shares held: +5.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mid Granahan Investment Management, LLC +858,942 1,739,097
Small CADIAN CAPITAL MANAGEMENT, LP +716,372 1,887,472
Mid GILDER GAGNON HOWE & CO LLC +634,558 1,048,516
Mid PARADIGM CAPITAL MANAGEMENT INC/NY +598,300 1,126,500
Mega MORGAN STANLEY +507,611 712,510

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid ALGERT GLOBAL LLC −381,447 230,412
Large BROWN ADVISORY INC −339,470 2,122,332
Mid Champlain Investment Partners, LLC −238,577 877,605
Mega D. E. Shaw & Co., Inc. −214,993 189,028
Mega TWO SIGMA INVESTMENTS, LP −192,769 58,147

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,764,313 $22,283,273
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 413,494 $5,222,429
Mega VANGUARD FIDUCIARY TRUST CO 274,691 $3,469,347
Small Stonepine Capital Management, LLC 114,964 $1,451,995
Mid XTX Topco Ltd 83,153 $1,050,222

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 2,501,555 $49,330,662
Mega JANE STREET GROUP, LLC 253,654 $5,002,055
Large Walleye Capital LLC 194,120 $3,828,046
Large ExodusPoint Capital Management, LP 170,431 $3,360,899
Large TWO SIGMA ADVISERS, LP 113,600 $2,240,192
Filter: New 30 Increased 64 Reduced 69 Sold out 35 Unchanged 16
Showing 100 of 183
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mid First Light Asset Management, LLC $67,610,789 12.22% 5,353,190
Mega BlackRock, Inc. $43,302,466 7.82% 3,428,541
Mega AMERICAN CENTURY COMPANIES INC $31,689,490 5.73% 2,509,065
Large BROWN ADVISORY INC $26,805,052 4.84% 2,122,332
Small CADIAN CAPITAL MANAGEMENT, LP $23,838,771 4.31% 1,887,472
Mega VANGUARD CAPITAL MANAGEMENT LLC $22,283,273 4.03% 1,764,313
Mid Granahan Investment Management, LLC $21,964,795 3.97% 1,739,097
Large Impax Asset Management Group plc $17,997,876 3.25% 1,425,010
Mega Nuveen, LLC $16,236,003 2.93% 1,285,511
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $15,719,095 2.84% 1,244,584
Mega STATE STREET CORP $14,269,563 2.58% 1,129,815
Mid PARADIGM CAPITAL MANAGEMENT INC/NY $14,227,695 2.57% 1,126,500
Mid GILDER GAGNON HOWE & CO LLC $13,242,757 2.39% 1,048,516
Mega GEODE CAPITAL MANAGEMENT, LLC $12,020,324 2.17% 951,728
Mid Champlain Investment Partners, LLC $11,084,151 2.00% 877,605
Large Point72 Asset Management, L.P. $10,613,569 1.92% 840,346
Mega WELLINGTON MANAGEMENT GROUP LLP $9,758,087 1.76% 772,612
Mega MORGAN STANLEY $8,998,998 1.63% 712,510
Large First Eagle Investment Management, LLC $8,069,824 1.46% 638,941
Mega GOLDMAN SACHS GROUP INC $7,861,442 1.42% 622,442
Mega DIMENSIONAL FUND ADVISORS LP $7,817,198 1.41% 618,939
Small Pier Capital, LLC $6,022,047 1.09% 476,805
Large RENAISSANCE TECHNOLOGIES LLC $5,969,177 1.08% 472,619
Mid PEREGRINE CAPITAL MANAGEMENT LLC $5,406,410 0.98% 428,061
Mega BANK OF AMERICA CORP /DE/ Bank $5,297,942 0.96% 419,473
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $5,222,429 0.94% 413,494
Mid NEXT CENTURY GROWTH INVESTORS LLC $4,849,389 0.88% 383,958
Small Parkman Healthcare Partners LLC $4,717,974 0.85% 373,553
Large Qube Research & Technologies Ltd $4,692,373 0.85% 371,526
Mid ROYCE & ASSOCIATES LP $4,686,765 0.85% 371,082
Mega MILLENNIUM MANAGEMENT LLC $4,664,296 0.84% 369,303
Mega NORTHERN TRUST CORP Bank $4,525,794 0.82% 358,337
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $3,984,398 0.72% 315,471
Mid TOCQUEVILLE ASSET MANAGEMENT L.P. $3,839,520 0.69% 304,000
Large SEI INVESTMENTS CO $3,596,631 0.65% 284,769
Mega VANGUARD FIDUCIARY TRUST CO Bank $3,469,347 0.63% 274,691
Mid HARBOR CAPITAL ADVISORS, INC. $3,117,020 0.56% 246,795
Mid ALGERT GLOBAL LLC $2,910,103 0.53% 230,412
Large Assenagon Asset Management S.A. $2,829,170 0.51% 224,004
Small ESSEX INVESTMENT MANAGEMENT CO LLC $2,683,723 0.48% 212,488
Large Caption Management, LLC $2,399,700 0.43% 190,000
Mega D. E. Shaw & Co., Inc. $2,387,423 0.43% 189,028
Mega CITADEL ADVISORS LLC $2,377,294 0.43% 188,226
Small VELA Investment Management, LLC $2,363,830 0.43% 187,160
Large MARSHALL WACE, LLP $2,123,456 0.38% 168,128
Micro HighMark Wealth Management LLC $2,018,678 0.36% 159,832
Mega VICTORY CAPITAL MANAGEMENT INC $1,919,254 0.35% 151,960
Small Bullseye Asset Management LLC $1,802,705 0.33% 142,732
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $1,746,059 0.32% 138,247
Large TUDOR INVESTMENT CORP ET AL $1,643,365 0.30% 130,116
Mega JPMORGAN CHASE & CO $1,579,999 0.29% 125,099
Large Russell Investments Group, Ltd. $1,551,013 0.28% 122,804
Large LAZARD ASSET MANAGEMENT LLC $1,294,562 0.23% 102,499
Mega Bank of New York Mellon Corp Bank $1,271,107 0.23% 100,642
Large Caption Management, LLC $1,263,000 0.23% 100,000
Small Stonepine Capital Management, LLC $1,263,000 0.23% 100,000
Mid Cinctive Capital Management LP $1,206,670 0.22% 95,540
Mid Engineers Gate Manager LP $1,198,890 0.22% 94,924
Large Trexquant Investment LP $1,127,341 0.20% 89,259
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $1,102,267 0.20% 87,274
Large Squarepoint Ops LLC $1,063,206 0.19% 84,181
Mid XTX Topco Ltd $1,050,222 0.19% 83,153
Large Man Group plc $1,045,902 0.19% 82,811
Micro NANO CAP NEW MILLENNIUM GROWTH FUND L P $1,041,975 0.19% 82,500
Mega Swiss National Bank Bank $1,021,767 0.18% 80,900
Large Caption Management, LLC $947,250 0.17% 75,000
Large Universal- Beteiligungs- und Servicegesellschaft mbH $937,512 0.17% 74,229
Mega CITIGROUP INC $904,446 0.16% 71,611
Mega PRINCIPAL FINANCIAL GROUP INC $884,440 0.16% 70,027
Mid Legato Capital Management LLC $841,120 0.15% 66,597
Large ACADIAN ASSET MANAGEMENT LLC $798,203 0.14% 63,199
Mega TWO SIGMA INVESTMENTS, LP $734,396 0.13% 58,147
Mega AQR CAPITAL MANAGEMENT LLC $728,760 0.13% 57,701
Mega Invesco Ltd. $701,317 0.13% 55,528
Mid Susquehanna Portfolio Strategies, LLC $682,550 0.12% 54,042
Mega RAYMOND JAMES FINANCIAL INC $635,994 0.11% 50,356
Mega PRICE T ROWE ASSOCIATES INC /MD/ $629,403 0.11% 49,834
Mega UBS Group AG $609,409 0.11% 48,251
Mega RHUMBLINE ADVISERS $589,101 0.11% 46,643
Mid Sterling Capital Management LLC $568,236 0.10% 44,991
Mega BARCLAYS PLC $550,212 0.10% 43,564
Mid Brevan Howard Capital Management LP $544,921 0.10% 43,145
Mid Penn Capital Management Company, LLC $512,373 0.09% 40,568
Mega CITADEL ADVISORS LLC $496,359 0.09% 39,300
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $495,866 0.09% 39,261
Small Hilton Head Capital Partners, LLC $480,179 0.09% 38,019
Mid D.A. DAVIDSON & CO. $465,819 0.08% 36,882
Mega DEUTSCHE BANK AG\ Bank $464,935 0.08% 36,812
Mega ALLIANCEBERNSTEIN L.P. $451,522 0.08% 35,750
Small Palumbo Wealth Management LLC $448,769 0.08% 35,532
Mid Perpetual Ltd $401,747 0.07% 31,809
Mega Legal & General Group Plc $398,159 0.07% 31,525
Mid OP Asset Management Ltd $391,302 0.07% 30,982
Large Quantinno Capital Management LP $372,269 0.07% 29,475
Mid DRW Securities, LLC Broker-Dealer $326,409 0.06% 25,844
Mega VANGUARD ASSET MANAGEMENT, Ltd $323,959 0.06% 25,650
Large VOYA INVESTMENT MANAGEMENT LLC $317,556 0.06% 25,143
Small Manchester Capital Management LLC $317,101 0.06% 25,107
Mid Diversified Trust Co Bank $307,351 0.06% 24,335
Small Charter Oak Capital Management, LLC $303,157 0.05% 24,003

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