Summary
Updated Aug 30, 2026
Robert Joseph Ball is CEO & Executive Chairman, Director of SHOULDER INNOVATIONS, INC. (SI). 5 SEC Form 4 filings on record going back to 2025, most recently on 17 March 2026. Most recent open-market trade: bought $33K of SI on 17 March 2026. Lifetime open-market purchases: $156K. Historical track record: 1/5 stars across 3 tracked purchases.
Recent Transactions
6Every recent SEC Form 4 transaction Robert Joseph Ball has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert Joseph Ball files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Gilde Healthcare Holding B.V. - $4.44M of SI open-market activity in the last 12 months
- Matthew Fraser Ahearn - $839K of SI open-market activity in the last 12 months
- Jeffrey S. Points - $55K of SI open-market activity in the last 12 months
- Richard Buchholz - $15K of SI open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Robert Joseph Ball?
Robert Joseph Ball is a corporate insider, tracked as CEO & Executive Chairman, Director of SHOULDER INNOVATIONS, INC. (SI). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Robert Joseph Ball last file a Form 4?
The most recent primary Form 4 on record is dated 17 March 2026, one of 5 filings going back to 2025.
Has Robert Joseph Ball been buying or selling stock?
Recorded transactions: 3 open-market purchases ($156K) and 0 open-market sales across all tracked filings.
How accurate is Robert Joseph Ball's historical track record?
Across 3 tracked purchases, Robert Joseph Ball averaged -13.9% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
Where can I see all of Robert Joseph Ball's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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