SC
RYTM icon

SummitTX Capital’s Rhythm Pharmaceuticals RYTM Stock Holding History

SummitTX Capital’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 		$14.4M Buy
165,599
+84,870
+105% +$8.25M 0.45% 35
2025
Q4 		$8.64M Buy
80,729
+68,860
+580% +$7.3M 0.26% 89
2025
Q3 		$1.2M Sell
11,869
-13,583
-53% -$1.26M 0.05% 349
2025
Q2 		$1.61M Buy
25,452
+8,109
+47% +$497K 0.07% 286
2025
Q1 		$919K Buy
+17,343
New +$962K 0.04% 422

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

SummitTX Capital's RYTM Position: Q1 2026 in Review

SummitTX Capital increased its Rhythm Pharmaceuticals (RYTM) stake by 105% in Q1 2026, buying an estimated $8.25M and bringing the position to 165,599 shares worth $14.4M. The position accounts for 0.45% of the portfolio, ranked #35.

SummitTX Capital first reported a position in RYTM in Q1 2025 and has held it in 5 quarters since. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

  • SummitTX Capital held 165,599 shares of Rhythm Pharmaceuticals worth $14.4M as of Q1 2026.
  • SummitTX Capital bought 84,870 Rhythm Pharmaceuticals shares in Q1 2026, an estimated $8.25M.
  • Rhythm Pharmaceuticals made up 0.45% of SummitTX Capital's portfolio in Q1 2026, its #35 holding.
  • SummitTX Capital first reported a position in Rhythm Pharmaceuticals in Q1 2025 and has held it in 5 quarters since.
  • 285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

Based on SummitTX Capital's 13F filing for Q1 2026, filed 15 May 2026.