17 insiders reported 82 Form 4 transactions for SHOULDER INNOVATIONS, INC. (SI) over the past 18 months (most recent 2026-08-18). Recent activity: Ahearn Matthew Fraser (Chief Operating Officer) Sell 2,500 shares, Ahearn Matthew Fraser (Chief Operating Officer) Sell 8,314 shares, Ahearn Matthew Fraser (Chief Operating Officer) Sell 12,586 shares, Ahearn Matthew Fraser (Chief Operating Officer) Sell 1,600 shares, Gilde Healthcare Holding B.V. (10% Owner) Sell 7,338 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 2,500 | $0 |
| 2026-08-18 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 8,314 | $167,101 |
| 2026-08-18 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 12,586 | $263,493 |
| 2026-08-18 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 1,600 | $34,211 |
| 2026-08-07 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 7,338 | $166,132 |
| 2026-08-07 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 2,095 | $47,347 |
| 2026-08-05 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 10,751 | $244,155 |
| 2026-08-05 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 99,812 | $2.3M |
| 2026-08-03 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 28,245 | $659,803 |
| 2026-08-03 | Gilde Healthcare Holding B.V. | 10% Owner | Sell | 20,034 | $455,373 |
| 2026-06-29 | BUCKMAN PAUL | Director | Buy | 5,046 | $0 |
| 2026-06-29 | Tansey Casey M | Director | Buy | 5,046 | $0 |
| 2026-06-29 | Buchholz Richard | Director | Buy | 5,046 | $0 |
| 2026-06-29 | Hykes Andrew | Director | Buy | 5,046 | $0 |
| 2026-06-29 | Sidow Kevin K. | Director | Buy | 5,046 | $0 |
| 2026-06-16 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 15,856 | $296,185 |
| 2026-06-16 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 1,644 | $29,922 |
| 2026-06-16 | Ahearn Matthew Fraser | Chief Operating Officer | Sell | 2,500 | $48,148 |
| 2026-04-30 | Ball Robert Joseph | CEO & Executive Chairman | Buy | 10,000 | $24,804 |
| 2026-04-21 | Ahearn Matthew Fraser | Chief Operating Officer | Buy | 14,243 | $40,763 |
| 2026-04-21 | Ahearn Matthew Fraser | Chief Operating Officer | Buy | 7,421 | $18,407 |
| 2026-03-17 | Points Jeffrey S. | Chief Financial Officer | Buy | 13,264 | $32,895 |
| 2026-03-17 | Points Jeffrey S. | Chief Financial Officer | Buy | 2,000 | $30,000 |
| 2026-03-17 | Buchholz Richard | Director | Buy | 1,000 | $14,840 |
| 2026-03-17 | Ball Robert Joseph | CEO & Executive Chairman | Buy | 2,200 | $33,396 |
Source: SEC Form 4 filings · as of 2026-08-18