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Aigen Investment Management’s Rhythm Pharmaceuticals RYTM Stock Holding History

Aigen Investment 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
Q4 		– Sell
-8,225
Closed -$831K – 925
2025
Q3 		$831K Buy
8,225
+4,011
+95% +$372K 0.13% 243
2025
Q2 		$266K Sell
4,214
-3,487
-45% -$214K 0.04% 573
2025
Q1 		$408K Buy
+7,701
New +$427K 0.07% 405
2024
Q2 		– Sell
-6,479
Closed -$281K – 984
2024
Q1 		$281K Buy
+6,479
New +$284K 0.06% 460
2020
Q2 		– Sell
-338
Closed -$5K – 1220
2020
Q1 		$5K Sell
338
-341
-50% -$6.11K ﹤0.01% 1170
2019
Q4 		$16K Buy
+679
New +$15.1K ﹤0.01% 937

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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Aigen Investment Management's RYTM Position: Q4 2025 in Review

Aigen Investment Management sold out of Rhythm Pharmaceuticals (RYTM) in Q4 2025, closing a stake of 8,225 shares — an estimated $831K sold.

Aigen Investment Management first reported a position in RYTM in Q4 2019 and held it in 6 quarters. The position peaked at $831K in Q3 2025. 279 funds tracked by Wall St. Rank hold RYTM as of Q4 2025.

  • Aigen Investment Management reported no remaining Rhythm Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Aigen Investment Management sold 8,225 Rhythm Pharmaceuticals shares in Q4 2025, an estimated $831K.
  • Aigen Investment Management first reported a position in Rhythm Pharmaceuticals in Q4 2019 and held it in 6 quarters.
  • Aigen Investment Management's Rhythm Pharmaceuticals position peaked at $831K in Q3 2025.
  • 279 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q4 2025.

Based on Aigen Investment Management's 13F filing for Q4 2025, filed 13 Feb 2026.