Updated Jul 16, 2026
Arbuckle Stuart A has filed 3 SEC Form 4 filings across 3 companies in the last 90 days.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-25 | RYTM | RHYTHM PHARMACEUTICALS, INC. | M — Option exercise | 4.7K | — | |
| 2026-06-12 | PRAX | Praxis Precision Medicines, Inc. | A — Grant or award | 1.4K | $0.00 | |
| 2026-05-22 | ALNY | ALNYLAM PHARMACEUTICALS, INC. | A — Grant or award | 671 | $0.00 | |
| 2026-02-10 | PRAX | Praxis Precision Medicines, Inc. | A — Grant or award | 478 | $0.00 | |
| 2026-02-10 | PRAX | Praxis Precision Medicines, Inc. | A — Grant or award | 688 | $0.00 | |
| 2025-07-01 | VRTX | VERTEX PHARMACEUTICALS INC / MA | F — Tax withholding / forfeiture | 37.2K | $450.23 | $16.77M |
Arbuckle Stuart A is a corporate insider — currently tracked as Director of RHYTHM PHARMACEUTICALS, INC. (RYTM). InsiderAlpha tracks every SEC Form 4 filing in real time.
3 primary Form 4 filings in the last 90 days, covering 3 companies.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Arbuckle Stuart A profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.