SEI Investments
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SEI Investments’s Rhythm Pharmaceuticals RYTM Stock Holding History

SEI 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 		$3.54M Buy
40,685
+3,253
+9% +$316K ﹤0.01% 1728
2025
Q4 		$4.01M Buy
37,432
+5,774
+18% +$612K ﹤0.01% 1479
2025
Q3 		$3.2M Sell
31,658
-1,487
-4% -$138K ﹤0.01% 1494
2025
Q2 		$2.09M Buy
33,145
+764
+2% +$46.8K ﹤0.01% 1625
2025
Q1 		$1.72M Sell
32,381
-1,141
-3% -$63.3K ﹤0.01% 1696
2024
Q4 		$1.88M Buy
33,522
+4,501
+16% +$249K ﹤0.01% 1698
2024
Q3 		$1.52M Buy
29,021
+21,651
+294% +$1.04M ﹤0.01% 1798
2024
Q2 		$303K Sell
7,370
-4,100
-36% -$164K ﹤0.01% 2331
2024
Q1 		$497K Buy
11,470
+5,296
+86% +$232K ﹤0.01% 2116
2023
Q4 		$284K Buy
+6,174
New +$195K ﹤0.01% 2329
2023
Q1 		– Sell
-15,453
Closed -$450K – 2728
2022
Q4 		$450K Sell
15,453
-3,805
-20% -$97.8K ﹤0.01% 2056
2022
Q3 		$472K Buy
+19,258
New +$358K ﹤0.01% 2112

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

SEI Investments's RYTM Position: Q1 2026 in Review

SEI Investments increased its Rhythm Pharmaceuticals (RYTM) stake by 8.7% in Q1 2026, buying an estimated $316K and bringing the position to 40,685 shares worth $3.54M. The position accounts for ﹤0.01% of the portfolio, ranked #1728.

SEI Investments first reported a position in RYTM in Q3 2022 and has held it in 12 quarters since. The position peaked at $4.01M in Q4 2025. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

  • SEI Investments held 40,685 shares of Rhythm Pharmaceuticals worth $3.54M as of Q1 2026.
  • SEI Investments bought 3,253 Rhythm Pharmaceuticals shares in Q1 2026, an estimated $316K.
  • Rhythm Pharmaceuticals made up ﹤0.01% of SEI Investments's portfolio in Q1 2026, its #1728 holding.
  • SEI Investments first reported a position in Rhythm Pharmaceuticals in Q3 2022 and has held it in 12 quarters since.
  • SEI Investments's Rhythm Pharmaceuticals position peaked at $4.01M in Q4 2025.
  • 285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

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