RYTM
Rhythm Pharmaceuticals Inc
NASDAQ: RYTM · HEALTHCARE · BIOTECHNOLOGY
$106.53
-1.40% today
Updated 2026-07-29
Market cap
$7.31B
P/E ratio
—
P/S ratio
33.33x
EPS (TTM)
$-3.13
Dividend yield
—
52W range
$75 – $122
Volume
0.8M
Rhythm Pharmaceuticals Inc (RYTM) Insider transactions
Net insider activity
Net buying (472,343 shares)
Buy transactions
47
Sell transactions
53
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-01 | GARFIELD, ALASTAIR | Chief Scientific Officer | Sale | 4,445 | — | — |
| 2026-07-01 | GARFIELD, ALASTAIR | Chief Scientific Officer | Buy | 4,445 | — | — |
| 2026-07-01 | GARFIELD, ALASTAIR | Chief Scientific Officer | Sale | 2,150 | $110.41 | $237381.50 |
| 2026-06-24 | TETRAULT, LYNN A. | Director | Buy | 3,691 | — | — |
| 2026-06-24 | TETRAULT, LYNN A. | Director | Buy | 2,324 | — | — |
| 2026-06-24 | MCGIRR, DAVID W J | Director | Buy | 3,691 | — | — |
| 2026-06-24 | MCGIRR, DAVID W J | Director | Buy | 2,324 | — | — |
| 2026-06-24 | JEAN, CHRISTOPHE | Director | Buy | 3,691 | — | — |
| 2026-06-24 | JEAN, CHRISTOPHE | Director | Buy | 2,324 | — | — |
| 2026-06-24 | GOOD, JENNIFER L | Director | Buy | 3,691 | — | — |
| 2026-06-24 | GOOD, JENNIFER L | Director | Buy | 2,324 | — | — |
| 2026-06-24 | ARBUCKLE, STUART A | Director | Buy | 3,691 | — | — |
| 2026-06-24 | ARBUCKLE, STUART A | Director | Buy | 2,324 | — | — |
| 2026-06-23 | TETRAULT, LYNN A. | Director | Sale | 4,712 | — | — |
| 2026-06-23 | TETRAULT, LYNN A. | Director | Buy | 4,712 | — | — |
| 2026-06-23 | MCGIRR, DAVID W J | Director | Sale | 4,712 | — | — |
| 2026-06-23 | MCGIRR, DAVID W J | Director | Buy | 4,712 | — | — |
| 2026-06-23 | JEAN, CHRISTOPHE | Director | Sale | 4,712 | — | — |
| 2026-06-23 | JEAN, CHRISTOPHE | Director | Buy | 4,712 | — | — |
| 2026-06-23 | GOOD, JENNIFER L | Director | Sale | 4,712 | — | — |
| 2026-06-23 | GOOD, JENNIFER L | Director | Buy | 4,712 | — | — |
| 2026-06-23 | ARBUCKLE, STUART A | Director | Sale | 4,712 | — | — |
| 2026-06-23 | ARBUCKLE, STUART A | Director | Buy | 4,712 | — | — |
| 2026-06-22 | TETRAULT, LYNN A. | Director | Sale | 37,000 | — | — |
| 2026-06-22 | TETRAULT, LYNN A. | Director | Buy | 37,000 | $28.27 | $1.05M |
| 2026-05-18 | SMITH, HUNTER C | Chief Financial Officer | Sale | 3,000 | — | — |
| 2026-05-18 | SMITH, HUNTER C | Chief Financial Officer | Buy | 3,000 | $17.87 | $53610.00 |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 1,687 | — | — |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 1,406 | — | — |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 1,349 | — | — |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 4,643 | $92.21 | $428131.03 |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Buy | 1,687 | $56.69 | $95636.03 |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Buy | 1,406 | $17.97 | $25265.82 |
| 2026-05-15 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Buy | 1,349 | $49.23 | $66411.27 |
| 2026-04-01 | POPOVITS, KIMBERLY J | Director | Buy | 10,257 | — | — |
| 2026-04-01 | POPOVITS, KIMBERLY J | Director | Buy | 6,808 | — | — |
| 2026-04-01 | MAZABRAUD, YANN | EVP, Head of International | Sale | 10,375 | — | — |
| 2026-04-01 | MAZABRAUD, YANN | EVP, Head of International | Sale | 2,500 | — | — |
| 2026-04-01 | MAZABRAUD, YANN | EVP, Head of International | Buy | 12,875 | — | — |
| 2026-03-12 | MATHERS, EDWARD T | Director | Buy | 4,199 | — | — |
| 2026-03-04 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 1,500 | — | — |
| 2026-03-04 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 5,614 | $89.56 | $502789.84 |
| 2026-03-04 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Buy | 1,500 | $17.97 | $26955.00 |
| 2026-03-02 | SMITH, HUNTER C | Chief Financial Officer | Sale | 6,099 | — | — |
| 2026-03-02 | SMITH, HUNTER C | Chief Financial Officer | Buy | 6,099 | $6.80 | $41473.20 |
| 2026-03-02 | MAZABRAUD, YANN | EVP, Head of International | Buy | 35,000 | — | — |
| 2026-03-02 | MATHERS, EDWARD T | Director | Buy | 4,198 | — | — |
| 2026-03-01 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 1,162 | — | — |
| 2026-03-01 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Buy | 1,162 | — | — |
| 2026-03-01 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Sale | 342 | $94.94 | $32469.48 |
| 2026-02-19 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,692 | $100.92 | $170754.78 |
| 2026-02-19 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,308 | $100.27 | $131152.90 |
| 2026-02-19 | SMITH, HUNTER C | Chief Financial Officer | Sale | 800 | $102.10 | $81676.08 |
| 2026-02-19 | SMITH, HUNTER C | Chief Financial Officer | Sale | 585 | $103.28 | $60420.44 |
| 2026-02-17 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,200 | $99.42 | $119298.00 |
| 2026-02-17 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,069 | $103.00 | $110109.57 |
| 2026-02-17 | SMITH, HUNTER C | Chief Financial Officer | Sale | 900 | $101.70 | $91530.00 |
| 2026-02-17 | SMITH, HUNTER C | Chief Financial Officer | Sale | 200 | $103.84 | $20768.00 |
| 2026-02-14 | MAZABRAUD, YANN | EVP, Head of International | Sale | 10,000 | — | — |
| 2026-02-14 | MAZABRAUD, YANN | EVP, Head of International | Buy | 10,000 | — | — |
| 2026-02-12 | SMITH, HUNTER C | Chief Financial Officer | Sale | 800 | $98.99 | $79192.48 |
| 2026-02-12 | SMITH, HUNTER C | Chief Financial Officer | Sale | 400 | $97.67 | $39068.52 |
| 2026-02-12 | SMITH, HUNTER C | Chief Financial Officer | Sale | 292 | $96.26 | $28108.71 |
| 2026-02-12 | SMITH, HUNTER C | Chief Financial Officer | Sale | 100 | $100.10 | $10010.00 |
| 2026-02-11 | SMITH, HUNTER C | Chief Financial Officer | Buy | 37,500 | — | — |
| 2026-02-11 | SMITH, HUNTER C | Chief Financial Officer | Buy | 25,000 | — | — |
| 2026-02-11 | SMITH, HUNTER C | Chief Financial Officer | Sale | 2,266 | $98.37 | $222906.42 |
| 2026-02-11 | SMITH, HUNTER C | Chief Financial Officer | Sale | 400 | $99.44 | $39774.72 |
| 2026-02-11 | SMITH, HUNTER C | Chief Financial Officer | Sale | 100 | $100.85 | $10085.27 |
| 2026-02-11 | SHULMAN, JOSEPH | Chief Technical Officer | Buy | 22,500 | — | — |
| 2026-02-11 | SHULMAN, JOSEPH | Chief Technical Officer | Buy | 15,000 | — | — |
| 2026-02-11 | MEEKER, DAVID P | Director, President and CEO | Buy | 107,850 | — | — |
| 2026-02-11 | MEEKER, DAVID P | Director, President and CEO | Buy | 71,900 | — | — |
| 2026-02-11 | MAZABRAUD, YANN | EVP, Head of International | Buy | 23,350 | — | — |
| 2026-02-11 | LEE, JENNIFER KAYDEN | EVP, Head of North America | Buy | 32,500 | — | — |
| 2026-02-11 | LEE, JENNIFER KAYDEN | EVP, Head of North America | Buy | 21,650 | — | — |
| 2026-02-11 | GERMAN, CHRISTOPHER PAUL | Corporate Controller & CAO | Buy | 5,215 | — | — |
| 2026-02-11 | GARFIELD, ALASTAIR | Chief Scientific Officer | Buy | 25,000 | — | — |
| 2026-02-11 | GARFIELD, ALASTAIR | Chief Scientific Officer | Buy | 16,650 | — | — |
| 2026-02-11 | CRAMER, PAMELA J. | Chief Human Resources Officer | Buy | 17,500 | — | — |
| 2026-02-11 | CRAMER, PAMELA J. | Chief Human Resources Officer | Buy | 11,650 | — | — |
| 2026-02-10 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,913 | $102.66 | $196379.78 |
| 2026-02-10 | SMITH, HUNTER C | Chief Financial Officer | Sale | 700 | $103.68 | $72573.69 |
| 2026-02-10 | SMITH, HUNTER C | Chief Financial Officer | Sale | 100 | $104.76 | $10476.00 |
| 2026-02-05 | SMITH, HUNTER C | Chief Financial Officer | Sale | 3,381 | $106.06 | $358599.00 |
| 2026-02-04 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,500 | $104.74 | $157115.10 |
| 2026-02-04 | SMITH, HUNTER C | Chief Financial Officer | Sale | 1,000 | $106.60 | $106604.00 |
| 2026-02-04 | SMITH, HUNTER C | Chief Financial Officer | Sale | 747 | $107.67 | $80426.05 |
| 2026-02-01 | SMITH, HUNTER C | Chief Financial Officer | Sale | 10,413 | — | — |
| 2026-02-01 | SMITH, HUNTER C | Chief Financial Officer | Sale | 6,600 | — | — |
| 2026-02-01 | SMITH, HUNTER C | Chief Financial Officer | Sale | 4,925 | — | — |
| 2026-02-01 | SMITH, HUNTER C | Chief Financial Officer | Sale | 4,062 | — | — |
| 2026-02-01 | SMITH, HUNTER C | Chief Financial Officer | Buy | 26,000 | — | — |
| 2026-02-01 | SMITH, HUNTER C | Chief Financial Officer | Sale | 10,750 | $108.99 | $1.17M |
| 2026-02-01 | SHULMAN, JOSEPH | Chief Technical Officer | Sale | 6,250 | — | — |
| 2026-02-01 | SHULMAN, JOSEPH | Chief Technical Officer | Sale | 4,125 | — | — |
| 2026-02-01 | SHULMAN, JOSEPH | Chief Technical Officer | Sale | 3,937 | — | — |
| 2026-02-01 | SHULMAN, JOSEPH | Chief Technical Officer | Sale | 2,656 | — | — |
| 2026-02-01 | SHULMAN, JOSEPH | Chief Technical Officer | Buy | 16,968 | — | — |
| 2026-02-01 | SHULMAN, JOSEPH | Chief Technical Officer | Sale | 6,507 | $108.99 | $709197.93 |
Frequently asked questions
Are RYTM insiders buying or selling?
Over the transactions on record, RYTM insiders have been net sellers, with about $5.28M in stock sold across 53 sales, against 7 open-market purchases.
Does insider selling at RYTM mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which RYTM insiders are selling the most?
Recent selling is concentrated in a few names. SMITH, HUNTER C accounts for the largest share on record, with about $3.37M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.