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

Insider buying vs selling

Have Rhythm Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Joseph ShulmanChief Technical Officer2025-09-0214,687$30.66
$450.30kBuy
Joseph ShulmanChief Technical Officer2025-09-0216,781$105.30
$1.77MSell
Joseph ShulmanChief Technical Officer2025-09-022,094$27.35
$57.27kBuy
Joseph ShulmanChief Technical Officer2025-08-214,188$27.35
$114.54kBuy
Joseph ShulmanChief Technical Officer2025-08-214,188$100.07
$419.09kSell
Hunter C. SmithChief Financial Officer2025-08-133,477$96.00
$333.79kSell
Hunter C. SmithChief Financial Officer2025-08-133,477$6.88
$23.92kBuy
Christopher Paul GermanCorporate Controller CAO2025-08-12500$49.23
$24.62kBuy
Hunter C. SmithChief Financial Officer2025-08-1224,611$6.88
$169.32kBuy
Hunter C. SmithChief Financial Officer2025-08-1224,611$96.33
$2.37MSell

1 of 12

RYTM insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when RYTM insiders and whales buy or sell their stock.

RYTM Shareholders

What type of owners hold Rhythm Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc9.44%6,267,538$603.06MInstitution
Baker Bros Advisors LP8.44%5,604,483$539.26MInstitution
Ra Capital Management LP8.37%5,561,359$535.11MInstitution
Primecap Management Co7.34%4,878,037$469.36MInstitution
Ra Capital Management LP6.57%4,360,860$419.60MInsider
Vanguard Group Inc5.40%3,589,114$345.34MInstitution
Nea Management Company LLC4.38%2,909,956$280.00MInstitution
Orbimed Advisors LLC4.14%2,750,079$264.61MInsider
Perceptive Advisors LLC3.64%2,418,299$232.69MInstitution
Fmr LLC2.94%1,953,441$187.96MInstitution

1 of 3

RYTM vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RYTM87.82%12.18%Net SellingNet Buying
NNNN0.02%0.00%
LEGN22.93%0.00%
CYTK90.09%9.91%Net SellingNet Selling
AXSM70.64%29.36%Net SellingNet Selling

Rhythm Pharmaceuticals Stock Ownership FAQ

Who owns Rhythm Pharmaceuticals?

Rhythm Pharmaceuticals (NASDAQ: RYTM) is owned by 100.19% institutional shareholders, 13.89% Rhythm Pharmaceuticals insiders, and 0.00% retail investors. Ra Capital Management LP is the largest individual Rhythm Pharmaceuticals shareholder, owning 4.36M shares representing 6.57% of the company. Ra Capital Management LP's Rhythm Pharmaceuticals shares are currently valued at $419.60M.

If you're new to stock investing, here's how to buy Rhythm Pharmaceuticals stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.