Capstone Investment Advisors
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Capstone Investment Advisors’s Rhythm Pharmaceuticals RYTM Stock Holding History

Capstone Investment Advisors’s Portfolio RYTM Stock Details RYTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$334K Buy
+3,005
New +$272K ﹤0.01% 1405
2025
Q4 		– Sell
-3,497
Closed -$353K – 1990
2025
Q3 		$353K Buy
+3,497
New +$325K ﹤0.01% 1570
2024
Q2 		– Sell
-6,738
Closed -$292K – 2415
2024
Q1 		$292K Buy
+6,738
New +$295K ﹤0.01% 1851

Other funds holding RYTM

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Capstone Investment Advisors's RYTM Position: Q2 2026 in Review

Capstone Investment Advisors opened a new position in Rhythm Pharmaceuticals (RYTM) in Q2 2026: 3,005 shares worth $334K. The stake represents ﹤0.01% of the portfolio and ranks #1405 among its holdings. This is a return to the name: Capstone Investment Advisors previously reported a position in RYTM as recently as Q3 2025.

Capstone Investment Advisors first reported a position in RYTM in Q1 2024 and has held it in 3 quarters since. The position peaked at $353K in Q3 2025. 304 funds tracked by Wall St. Rank hold RYTM as of Q2 2026.

  • Capstone Investment Advisors held 3,005 shares of Rhythm Pharmaceuticals worth $334K as of Q2 2026.
  • Rhythm Pharmaceuticals was a new Capstone Investment Advisors position in Q2 2026.
  • Rhythm Pharmaceuticals made up ﹤0.01% of Capstone Investment Advisors's portfolio in Q2 2026, its #1405 holding.
  • Capstone Investment Advisors first reported a position in Rhythm Pharmaceuticals in Q1 2024 and has held it in 3 quarters since.
  • Capstone Investment Advisors's Rhythm Pharmaceuticals position peaked at $353K in Q3 2025.
  • 304 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q2 2026.

Based on Capstone Investment Advisors's 13F filing for Q2 2026, filed 17 Aug 2026.