Updated Jul 16, 2026 · Last SEC filing 2026-06-29
SHOULDER INNOVATIONS, INC. (SI) has filed 7 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-29. 4 Form 8-K material event filings were reported by SI in the last 90 days. 1 Form 144 notices of proposed sale were filed for SI stock. InsiderAlpha tracks every SI SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001699350 |
|---|
| Form 4 filings (90d) | 7 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-06-29 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sidow Kevin K. | Director | A — Grant or award | 5.0K | $0.00 | — | SEC | |
| Buchholz Richard | Director | A — Grant or award | 5.0K | $0.00 | — | SEC | |
| BUCKMAN PAUL | Director | A — Grant or award | 5.0K | $0.00 | — | SEC | |
| Tansey Casey M | Director | A — Grant or award | 5.0K | $0.00 | — | SEC | |
| Hykes Andrew | Director | A — Grant or award | 5.0K | $0.00 | — | SEC | |
| Ahearn Matthew Fraser | Chief Operating Officer | S — Open-market sale | 2.5K | $19.26 | $48K | SEC | |
| Ahearn Matthew Fraser | Chief Operating Officer | S — Open-market sale | 1.6K | $18.20 | $30K | SEC | |
| Ahearn Matthew Fraser | Chief Operating Officer | S — Open-market sale | 15.9K | $18.68 | $296K | SEC | |
| Ahearn Matthew Fraser | Chief Operating Officer | M — Option exercise | 7.4K | $2.48 | $18K | SEC | |
| Ahearn Matthew Fraser | Chief Operating Officer | M — Option exercise | 14.2K | $2.86 | $41K | SEC | |
| BUCKMAN PAUL | Director | M — Option exercise | 26.2K | $2.10 | $55K | SEC | |
| BUCKMAN PAUL | Director | F — Tax withholding / forfeiture | 3.3K | $14.62 | $48K | SEC | |
| Points Jeffrey S. | Chief Financial Officer | P — Open-market purchase | 2.0K | $15.00 | $30K | SEC | |
| BUCKMAN PAUL | Director | M — Option exercise | 19.4K | $2.48 | $48K | SEC | |
| Ball Robert Joseph | CEO & Executive Chairman | P — Open-market purchase | 2.2K | $15.18 | $33K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for SHOULDER INNOVATIONS, INC. (SI). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Ahearn Matthew Fraser | 7 | $433K |
| Tansey Casey M | 1 | — |
| BUCKMAN PAUL | 1 | — |
| Buchholz Richard | 1 | — |
| Sidow Kevin K. | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SI insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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