Updated Jul 16, 2026 · Last SEC filing 2026-07-02
RHYTHM PHARMACEUTICALS, INC. (RYTM) has filed 9 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 3 Form 8-K material event filings were reported by RYTM in the last 90 days. 1 Form 144 notices of proposed sale were filed for RYTM stock. InsiderAlpha tracks every RYTM SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001649904 |
|---|
| Form 4 filings (90d) | 9 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-02 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Garfield Alastair | Chief Scientific Officer | F — Tax withholding / forfeiture | 2.1K | $110.41 | $237K | SEC | |
| Garfield Alastair | Chief Scientific Officer | M — Option exercise | 4.4K | — | — | SEC | |
| TETRAULT LYNN A. | Director | M — Option exercise | 4.7K | — | — | SEC | |
| Arbuckle Stuart A | Director | M — Option exercise | 4.7K | — | — | SEC | |
| GOOD JENNIFER L | Director | M — Option exercise | 4.7K | — | — | SEC | |
| JEAN CHRISTOPHE | Director | M — Option exercise | 4.7K | — | — | SEC | |
| MCGIRR DAVID W J | Director | M — Option exercise | 4.7K | — | — | SEC | |
| TETRAULT LYNN A. | Director | M — Option exercise | 37.0K | $28.27 | $1.05M | SEC | |
| TETRAULT LYNN A. | Director | S — Open-market sale | 37.0K | $100.32 | $3.71M | SEC | |
| Smith Hunter C | Chief Financial Officer | M — Option exercise | 3.0K | $17.87 | $54K | SEC | |
| German Christopher Paul | Corporate Controller & CAO | M — Option exercise | 1.7K | $56.69 | $96K | SEC | |
| German Christopher Paul | Corporate Controller & CAO | M — Option exercise | 1.3K | $49.23 | $66K | SEC | |
| German Christopher Paul | Corporate Controller & CAO | M — Option exercise | 1.4K | $17.97 | $25K | SEC | |
| German Christopher Paul | Corporate Controller & CAO | S — Open-market sale | 4.6K | $92.21 | $428K | SEC | |
| Mazabraud Yann | EVP, Head of International | M — Option exercise | 12.9K | — | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for RHYTHM PHARMACEUTICALS, INC. (RYTM). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| German Christopher Paul | 7 | $615K |
| TETRAULT LYNN A. | 7 | $4.76M |
| JEAN CHRISTOPHE | 4 | — |
| Arbuckle Stuart A | 4 | — |
| MCGIRR DAVID W J | 4 | — |
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 RYTM 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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