Form 4: Rhythm Pharmaceuticals Executive Sells Shares
Insider Transaction (Form 4)
Alastair Garfield, Chief Scientific Officer of Rhythm Pharmaceuticals, Inc., sold 7,763 shares of common stock on August 13, 2026.
Summary
- Open-market sale: disposed of 2,007 Common Stock at $116.11 ($233,031) on August 13, 2026; holds 8,051 after (Direct).
- Open-market sale: disposed of 1,556 Common Stock at $117.08 ($182,170) on August 13, 2026; holds 6,495 after (Direct).
- Open-market sale: disposed of 3,400 Common Stock at $118.28 ($402,167) on August 13, 2026; holds 3,095 after (Direct).
- Open-market sale: disposed of 800 Common Stock at $119.17 ($95,335) on August 13, 2026; holds 2,295 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $912,703 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Alastair Garfield — Officer (Chief Scientific Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-13 | Open-market sale | Common Stock | 2,007 | $116 | $233.0K | 8,051 |
| 2026-08-13 | Open-market sale | Common Stock | 1,556 | $117 | $182.2K | 6,495 |
| 2026-08-13 | Open-market sale | Common Stock | 3,400 | $118 | $402.2K | 3,095 |
| 2026-08-13 | Open-market sale | Common Stock | 800 | $119 | $95.3K | 2,295 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-13 | Open-market sale (2,007 shares) |
| 2026-08-13 | Open-market sale (1,556 shares) |
| 2026-08-13 | Open-market sale (3,400 shares) |
| 2026-08-13 | Open-market sale (800 shares) |
Keywords
insider transaction, Form 4, RYTM, RHYTHM PHARMACEUTICALS, INC., bearish, Alastair Garfield
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