Vanguard Portfolio Management
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Vanguard Portfolio Management’s Rhythm Pharmaceuticals RYTM Stock Holding History

Vanguard Portfolio Management’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 		$348M Buy
3,136,895
+96,177
+3% +$8.7M 0.02% 902
2026
Q1 		$264M Buy
+3,040,718
New +$296M 0.01% 974

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 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 $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $30.6B AUM 61.81% 1-Year Est. Return

Vanguard Portfolio Management's RYTM Position: Q2 2026 in Review

Vanguard Portfolio Management increased its Rhythm Pharmaceuticals (RYTM) stake by 3.2% in Q2 2026, buying an estimated $8.7M and bringing the position to 3,136,895 shares worth $348M. The position accounts for 0.02% of the portfolio, ranked #902.

Vanguard Portfolio Management first reported a position in RYTM in Q1 2026 and has held it in 2 quarters since. 298 funds tracked by Wall St. Rank hold RYTM as of Q2 2026.

  • Vanguard Portfolio Management held 3,136,895 shares of Rhythm Pharmaceuticals worth $348M as of Q2 2026.
  • Vanguard Portfolio Management bought 96,177 Rhythm Pharmaceuticals shares in Q2 2026, an estimated $8.7M.
  • Rhythm Pharmaceuticals made up 0.02% of Vanguard Portfolio Management's portfolio in Q2 2026, its #902 holding.
  • Vanguard Portfolio Management first reported a position in Rhythm Pharmaceuticals in Q1 2026 and has held it in 2 quarters since.
  • 298 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.