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Dark Forest Capital Management’s Rhythm Pharmaceuticals RYTM Stock Holding History

Dark Forest Capital 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
-28,639
Closed -$2.89M – 1302
2025
Q3 		$2.89M Sell
28,639
-6,190
-18% -$575K 0.11% 308
2025
Q2 		$2.2M Buy
34,829
+9,420
+37% +$577K 0.09% 410
2025
Q1 		$1.35M Buy
25,409
+20,198
+388% +$1.12M 0.06% 542
2024
Q4 		$292K Buy
+5,211
New +$288K 0.04% 679
2023
Q2 		– Sell
-25
Closed -$446 – 1349
2023
Q1 		$446 Buy
+25
New +$628 ﹤0.01% 1105

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

Dark Forest Capital Management's RYTM Position: Q4 2025 in Review

Dark Forest Capital Management sold out of Rhythm Pharmaceuticals (RYTM) in Q4 2025, closing a stake of 28,639 shares — an estimated $2.89M sold.

Dark Forest Capital Management first reported a position in RYTM in Q1 2023 and held it in 5 quarters. The position peaked at $2.89M in Q3 2025. 279 funds tracked by Wall St. Rank hold RYTM as of Q4 2025.

  • Dark Forest Capital Management reported no remaining Rhythm Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Dark Forest Capital Management sold 28,639 Rhythm Pharmaceuticals shares in Q4 2025, an estimated $2.89M.
  • Dark Forest Capital Management first reported a position in Rhythm Pharmaceuticals in Q1 2023 and held it in 5 quarters.
  • Dark Forest Capital Management's Rhythm Pharmaceuticals position peaked at $2.89M in Q3 2025.
  • 279 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q4 2025.

Based on Dark Forest Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.