Robert Joseph Ball, CEO & Executive Chairman at SHOULDER INNOVATIONS, INC. (SI), bought 4,400 shares at $15.18 ($67K) on 2026-03-13, disclosed to the SEC on 2026-03-17.
Recurring purchase ($67k) by CEO & Executive Chairman following this insider's established cadence. Pattern-driven, low signal.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $15.18 | 2,200 | $33K | 50.0% |
| 2 | $15.18 | 2,200 | $33K | 50.0% |
| Total | $15.18 avg | 4,400 | $67K | 100% |
| Filing → |
| SI | BUY | 2025-09-15 | $123K | — | Filing → |