Robert Joseph Ball bought $123k of SI
CEO & EXECUTIVE CHAIRMAN at SHOULDER INNOVATIONS, INC.. 8,000 shares at an average of $15.34, traded Sep 11, 2025, filed Sep 15, 2025.
Score components
- +25RoleCEO
- +10Trade size$123k at market
- +3Relative to holdingsHoldings up 8%
- 0Price contextNear the top of the 52-week range
- +8Cluster2 insiders buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -18.9%, 3m -3.3%, 6m +2.3%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001493152-25-013475, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 11, 2025 | POpen-market purchase Common Stock | +2,000 | $14.90 | $30k | 105,259 | Sep 15, 2025 |
| Sep 12, 2025 | POpen-market purchase Common Stock | +6,000 | $15.49 | $93k | 111,259 | Sep 15, 2025 |
Related signals
Other insiders at SHOULDER INNOVATIONS, INC. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 22Weak | SIsell SHOULDER INNOVATIONS, INC. | Robert Joseph Ball CEO & Executive Chairman | $188k 10,175 shares | -3% | |
| 15Weak | SHOULDER INNOVATIONS, INC. | Matthew Fraser Ahearn Chief Operating Officer | $374k 20,000 shares | -7% | |
| 41Moderate | SHOULDER INNOVATIONS, INC. | Robert Joseph Ball CEO & Executive Chairman | $33k 2,200 shares | +1% | |
| 33Weak | SHOULDER INNOVATIONS, INC. | Richard Buchholz director | $15k 1,000 shares | +8% | |
| 42Moderate | SHOULDER INNOVATIONS, INC. | Jeffrey S. Points Chief Financial Officer | $30k 2,000 shares | +3% | |
| 46Moderate | SHOULDER INNOVATIONS, INC. | Robert Joseph Ball CEO & Executive Chairman | $107k 7,200 shares | +6% | |
| 40Moderate | SHOULDER INNOVATIONS, INC. | Jeffrey S. Points Chief Financial Officer | $30k 2,000 shares | +4% | |
| 40Moderate | SHOULDER INNOVATIONS, INC. | Jeffrey S. Points CHIEF FINANCIAL OFFICER | $25k 1,600 shares | +3% | |
| 58Moderate | SHOULDER INNOVATIONS, INC. | Richard Buchholz director | $75k 5,000 shares | +65% | |
| 68Notable | SHOULDER INNOVATIONS, INC. | Michael A Carusi director | $4.0M 266,666 shares | +16% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.