Updated Jul 16, 2026
Ball Robert Joseph is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $156K. Historical track record: 1/5 stars across 3 tracked purchases.
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★☆☆☆☆ (1/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 0% |
| 90-day win rate | 3333% |
| Avg 5-day return | +60.93% |
| Avg 30-day return | -1386.60% |
| Avg 90-day return | +680.59% |
| Best 30-day return | -6.75% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-17 | SI | SHOULDER INNOVATIONS, INC. | P — Open-market purchase | 2.2K | $15.18 | $33K |
| 2026-02-10 | SI | SHOULDER INNOVATIONS, INC. | M — Option exercise | 2.1K | $2.10 | $4K |
| 2026-02-10 | SI | SHOULDER INNOVATIONS, INC. | M — Option exercise | 10.0K | $2.48 | $25K |
| 2025-09-11 | SI | SHOULDER INNOVATIONS, INC. | P — Open-market purchase | 6.0K | $15.49 | $93K |
| 2025-09-11 | SI | SHOULDER INNOVATIONS, INC. | P — Open-market purchase | 2.0K | $14.90 | $30K |
| 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | J — Other acquisition / disposition | 85.9K | — |
Ball Robert Joseph is a corporate insider — currently tracked as CEO & Executive Chairman, Director. InsiderAlpha tracks every SEC Form 4 filing in real time.
Recorded transactions: 3 open-market purchases ($156K) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, Ball Robert Joseph averaged -1386.6% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
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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