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Harbour Investments’s Rhythm Pharmaceuticals RYTM Stock Holding History

Harbour Investments’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
Q1 		$5.22K Hold
60
– – ﹤0.01% 3582
2025
Q4 		$6.42K Buy
+60
New +$6.37K ﹤0.01% 2928
2023
Q2 		– Sell
-148
Closed -$2.64K – 3110
2023
Q1 		$2.64K Hold
148
– – ﹤0.01% 2485
2022
Q4 		$4.31K Buy
+148
New +$3.8K ﹤0.01% 2266

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

Harbour Investments's RYTM Position: Q1 2026 in Review

Harbour Investments held its Rhythm Pharmaceuticals (RYTM) position steady in Q1 2026 at 60 shares worth $5.22K. The position accounts for ﹤0.01% of the portfolio, ranked #3582.

Harbour Investments first reported a position in RYTM in Q4 2022 and has held it in 4 quarters since. The position peaked at $6.42K in Q4 2025. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

  • Harbour Investments held 60 shares of Rhythm Pharmaceuticals worth $5.22K as of Q1 2026.
  • Harbour Investments left its Rhythm Pharmaceuticals share count unchanged in Q1 2026.
  • Rhythm Pharmaceuticals made up ﹤0.01% of Harbour Investments's portfolio in Q1 2026, its #3582 holding.
  • Harbour Investments first reported a position in Rhythm Pharmaceuticals in Q4 2022 and has held it in 4 quarters since.
  • Harbour Investments's Rhythm Pharmaceuticals position peaked at $6.42K in Q4 2025.
  • 285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

Based on Harbour Investments's 13F filing for Q1 2026, filed 15 May 2026.