Millennium Management
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Millennium Management’s Rhythm Pharmaceuticals RYTM Stock Holding History

Millennium 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
2025
Q3 		– Sell
-10,000
Closed -$632K – 6407
2025
Q2 		$632K Sell
10,000
-5,000
-33% -$306K ﹤0.01% 4734
2025
Q1 		$795K Buy
+15,000
New +$832K ﹤0.01% 4519
2023
Q4 		– Sell
-35,200
Closed -$807K – 6474
2023
Q3 		$807K Buy
+35,200
New +$788K ﹤0.01% 4337

Other funds holding RYTM

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Millennium Management's RYTM Position: Q1 2026 in Review

Millennium Management increased its Rhythm Pharmaceuticals (RYTM) stake by 142% in Q1 2026, buying an estimated $25.8M and bringing the position to 451,825 shares worth $39.3M. The position accounts for 0.02% of the portfolio, ranked #1013.

Millennium Management first reported a position in RYTM in Q2 2018 and has held it in 23 quarters since. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

  • Millennium Management held 451,825 shares of Rhythm Pharmaceuticals worth $39.3M as of Q1 2026.
  • Millennium Management bought 265,116 Rhythm Pharmaceuticals shares in Q1 2026, an estimated $25.8M.
  • Rhythm Pharmaceuticals made up 0.02% of Millennium Management's portfolio in Q1 2026, its #1013 holding.
  • Millennium Management first reported a position in Rhythm Pharmaceuticals in Q2 2018 and has held it in 23 quarters since.
  • 285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.