SI insider buying
3 cluster buysSHOULDER INNOVATIONS, INC. · Healthcare
When two or more insiders at SHOULDER INNOVATIONS, INC. buy SI on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in SI plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Mar 13 – Mar 13, 2026Detected Mar 13, 2026High conviction3 insidersTotal bought$78.2KMarket cap$443.6M
- Dec 11 – Dec 12, 2025Detected Dec 12, 2025High conviction2 insidersTotal bought$136.6KMarket cap$443.6M
- Aug 1 – Aug 1, 2025Detected Aug 1, 20255 insidersTotal bought$11.6MMarket cap$427.6M
All notable open-market buys in SI
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Mar 13, 2026 | Ball Robert Josephcluster Director, CEO & Executive Chairman | 2,200 | $15.18 | $33.4K | SEC ↗ |
| Mar 13, 2026 | Points Jeffrey S.cluster Chief Financial Officer | 2,000 | $15.00 | $30.0K | SEC ↗ |
| Mar 13, 2026 | Buchholz Richardcluster Director | 1,000 | $14.84 | $14.8K | SEC ↗ |
| Dec 12, 2025 | Ball Robert Josephcluster Director, CEO & Executive Chairman | 3,900 | $14.89 | $58.1K | SEC ↗ |
| Dec 12, 2025 | Points Jeffrey S.cluster Chief Financial Officer | 1,005 | $14.98 | $15.1K | SEC ↗ |
| Dec 11, 2025 | Ball Robert Josephcluster Director, CEO & Executive Chairman | 3,300 | $14.83 | $48.9K | SEC ↗ |
| Dec 11, 2025 | Points Jeffrey S.cluster Chief Financial Officer | 995 | $14.65 | $14.6K | SEC ↗ |
| Sep 12, 2025 | Director, CEO & EXECUTIVE CHAIRMAN | 6,000 | $15.49 | $92.9K | SEC ↗ |
| Sep 12, 2025 | CHIEF FINANCIAL OFFICER | 1,600 | $15.67 | $25.1K | SEC ↗ |
| Sep 11, 2025 | Director, CEO & EXECUTIVE CHAIRMAN | 2,000 | $14.90 | $29.8K | SEC ↗ |
| Aug 1, 2025 | Carusi Michael Acluster Director | 266,666 | $15.00 | $4.0M | SEC ↗ |
| Aug 1, 2025 | Former 10% Owner | 266,666 | $15.00 | $4.0M | SEC ↗ |
| Aug 1, 2025 | 10% Owner | 100,000 | $15.00 | $1.5M | SEC ↗ |
| Aug 1, 2025 | Pardo Geoffrey Bcluster Director, 10% Owner | 100,000 | $15.00 | $1.5M | SEC ↗ |
| Aug 1, 2025 | Tansey Casey Mcluster Director, 10% Owner | 40,000 | $15.00 | $600.0K | SEC ↗ |
| Aug 1, 2025 | Director | 5,000 | $15.00 | $75.0K | SEC ↗ |
| Aug 1, 2025 | CHIEF FINANCIAL OFFICER | 50 | $15.00 | $750.0 | SEC ↗ |
More Healthcare stocks with insider cluster buys
SI insider buying — FAQ
- Are insiders buying SI stock?
- Yes — 8 distinct insiders have bought SI (SHOULDER INNOVATIONS, INC.) on the open market, including 3 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Mar 17, 2026.
- How much SI stock have insiders bought?
- Insiders have bought a combined $12.0M of SI across 17 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in SI?
- A cluster buy is two or more distinct SHOULDER INNOVATIONS, INC. insiders — officers, directors, or 10% owners — each buying SI on the open market within a rolling window. SI has 3 detected cluster buys to date.
- Where does this SI insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in SI
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy SI within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding SI.