Ball Robert Joseph: insider buys
Every open-market stock purchase reported by Ball Robert Joseph to the SEC on Form 4.
Total bought$140.41K
Purchases2
Companies1
Last purchase filedMar 17, 2026
Return on these buys+41%
Ball Robert Joseph has made 2 open-market purchases worth $140.41K in 1 company since Dec 15, 2025, according to SEC Form 4 filings. The most recent was filed on Mar 17, 2026: 2,200 shares of SI at $15.18 (CEO & Executive Chairman, Director), worth $33.40K. The largest was $107.01K of SI on Dec 11, 2025. Taken together, these purchases are up 41% at the latest closing prices (split-adjusted, weighted by amount).
Companies Ball Robert Joseph bought
| Ticker | Company | Role | Buys | Total | Since buy | Last filed |
|---|---|---|---|---|---|---|
| SI | Shoulder Innovations, Inc. | CEO & Executive Chairman, Director | 2 | $140.41K | +41% | Mar 17 |
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| Filed | Stock | Insider | Value | Shares | Price | Since buy | Stake | Trade | |
|---|---|---|---|---|---|---|---|---|---|
| Mar 17 | SIShoulder Innovations, Inc. | Ball Robert JosephCEO & Executive Chairman, Director | $33.40K | 2,200 | $15.18 | +38% | +1% | Mar 13 | SEC |
| Dec 15 | SIShoulder Innovations, Inc. | Ball Robert JosephCEO & Executive Chairman, Director | $107.01K | 7,200 | $14.86 | +41% | +6% | Dec 11 | SEC |