Buchholz Richard (CIK 1737133) reported 12 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-29). Recent activity: Buy SI (5,046 shares), Buy SI (1,000 shares), Sell INSP (579 shares), Sell INSP (327 shares), Sell INSP (11,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-29 | SHOULDER INNOVATIONS, INC. (SI) | Director | Buy | 5,046 | $0 |
| 2026-03-17 | SHOULDER INNOVATIONS, INC. (SI) | Director | Buy | 1,000 | $14,840 |
| 2026-02-18 | Inspire Medical Systems, Inc. (INSP) | Interim CFO | Sell | 579 | $34,601 |
| 2026-02-11 | Inspire Medical Systems, Inc. (INSP) | Interim CFO | Sell | 327 | $21,690 |
| 2025-09-02 | Inspire Medical Systems, Inc. (INSP) | Chief Financial Officer | Sell | 11,000 | $1.0M |
| 2025-08-21 | Inspire Medical Systems, Inc. (INSP) | Chief Financial Officer | Buy | 17,849 | $1.3M |
| 2025-08-21 | Inspire Medical Systems, Inc. (INSP) | Chief Financial Officer | Buy | 7,159 | $301,752 |
| 2025-08-21 | Inspire Medical Systems, Inc. (INSP) | Chief Financial Officer | Sell | 2,649 | $239,046 |
| 2025-08-21 | Inspire Medical Systems, Inc. (INSP) | Chief Financial Officer | Sell | 2,455 | $221,466 |
| 2025-08-21 | Inspire Medical Systems, Inc. (INSP) | Chief Financial Officer | Sell | 276 | $24,917 |
| 2025-08-05 | SHOULDER INNOVATIONS, INC. (SI) | Director | Buy | 7,666 | $0 |
| 2025-08-05 | SHOULDER INNOVATIONS, INC. (SI) | Director | Buy | 5,000 | $75,000 |
Source: SEC Form 4 filings · as of 2026-06-29