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NASDAQ: RYTM
Rhythm Pharmaceuticals Inc Stock Ownership - Who owns Rhythm Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Rhythm Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Alastair GarfieldChief Scientific Officer2026-07-012,150$110.41
$237.38kSell
Lynn A. TetraultDirector2026-06-2237,000$100.32
$3.71MSell
Lynn A. TetraultDirector2026-06-2237,000$28.27
$1.05MBuy
Hunter C. SmithChief Financial Officer2026-05-183,000$17.87
$53.61kBuy
Christopher Paul GermanCorporate Controller CAO2026-05-151,349$49.23
$66.41kBuy
Christopher Paul GermanCorporate Controller CAO2026-05-154,643$92.21
$428.13kSell
Christopher Paul GermanCorporate Controller CAO2026-05-151,687$56.69
$95.64kBuy
Christopher Paul GermanCorporate Controller CAO2026-05-151,406$17.97
$25.27kBuy
Christopher Paul GermanCorporate Controller CAO2026-03-045,614$89.56
$502.79kSell
Christopher Paul GermanCorporate Controller CAO2026-03-041,500$17.97
$26.96kBuy

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Net Insider Buy/Sell (L12M) Ownership

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RYTM Shareholders

What type of owners hold Rhythm Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ra Capital Management LP9.73%6,666,837$707.55MInstitution
Blackrock Inc9.10%6,237,151$661.95MInstitution
Baker Bros Advisors LP8.18%5,604,483$594.80MInstitution
Ra Capital Management LP6.36%4,360,860$462.82MInsider
Primecap Management Co4.99%3,417,509$362.70MInstitution
Vanguard Portfolio Management LLC4.44%3,040,718$322.71MInstitution
Vanguard Capital Management LLC4.33%2,967,825$314.98MInstitution
Orbimed Advisors LLC4.01%2,750,079$291.87MInsider
Perceptive Advisors LLC3.46%2,373,795$251.93MInstitution
State Street Corp3.31%2,271,851$241.11MInstitution

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RYTM vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RYTM88.71%11.29%Net SellingNet Buying
IBRX16.99%7.30%Net BuyingNet Selling
LQDA47.10%52.90%Net SellingNet Selling
COGT93.06%6.94%Net Selling
PCVX89.01%10.99%Net SellingNet Selling
View Top Biotech Stocks

Rhythm Pharmaceuticals Stock Ownership FAQ

Who owns Rhythm Pharmaceuticals?

Rhythm Pharmaceuticals (NASDAQ: RYTM) is owned by 107.36% institutional shareholders, 13.67% Rhythm Pharmaceuticals insiders, and 0.00% retail investors. Ra Capital Management LP is the largest individual Rhythm Pharmaceuticals shareholder, owning 4.36M shares representing 6.36% of the company. Ra Capital Management LP's Rhythm Pharmaceuticals shares are currently valued at $471.15M.

If you're new to stock investing, here's how to buy Rhythm Pharmaceuticals stock.
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