$SIBN is held by 9 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.03%, with an average of 0.01% of portfolio. Largest holder: Caption Management, LLC at 0.03%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.
SI BONE INC
13F holders
174
Net 13F flow · Q
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Insider buys · 90d
0
Insider net · 90d
—
Congress · 90d
0
Convergence
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Institutional holders
Top 10 of 174 · Source: 13F-HR01
Hartree Partners, LP
—
—
02
Massachusetts Institute of Technology
—
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03
Equitable Holdings, Inc.
—
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04
Hillman Co.
—
—
05
Standard General L.P.
—
—
06
Cantor Fitzgerald, L. P.
—
—
07
Northeast Financial Consultants Inc
—
—
08
AltraVue Capital, LLC
—
—
09
Spectrum Asset Management, Inc.
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10
Balyasny Asset Management L.p.
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Each fund name links to that filer's expert page. Share counts and per-fund weights are pending the 13F ingest fix (portfolios_expertholding.units is currently mis-populated — see the same caveat on the fund detail page's holdings table). Quarter-over-quarter delta ships with the metrics pipeline.
Smart Money · top-200 alpha cohort
9 holders · Q1 202601
Caption Management, LLC
0.03% held
α +15.5pts
02
ADAR1 Capital Management, LLC
0.01% held
α +74.0pts
03
Wellington Management Group LLP
0.00% held
α +10.5pts
04
ANTIPODES PARTNERS Ltd
0.00% held
α +10.8pts
05
Citigroup Inc.
0.00% held
α +26.3pts
06
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.00% held
α +27.5pts
07
Quarry LP
0.00% held
α +10.6pts
08
Level Financial Advisors
0.00% held
α +30.9pts
09
Nisa Investment Advisors, LLC
0.00% held
α +16.6pts
Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.
Insider activity · last 90 days
50 transactions · 5 filersTransaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.
Congress trades · last 90 days
No Congress trades
No STOCK Act filings reference $SIBN in the recent window.
Convergence · Pattern Engine ships in v1.1
30-day windowIn development
Convergence detection for $SIBN lands with the Pattern Engine.
Once the Pattern Engine ships, this section will surface every active convergence event involving $SIBN — the institutional managers and Congress members on the same name, the 30-day window, and the combined position size.
Source data: SEC EDGAR · 13F-HR · Form 4 · CapitolTrades · Last refreshed 12:05 UTC.