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Dark Forest Capital Management’s Amylyx Pharmaceuticals AMLX Stock Holding History

Dark Forest Capital Management’s Portfolio AMLX Stock Details AMLX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-86,795
Closed -$1.18M – 956
2025
Q3 		$1.18M Buy
+86,795
New +$817K 0.04% 677
2024
Q1 		– Sell
-312,463
Closed -$4.6M – 682
2023
Q4 		$4.6M Buy
312,463
+212,307
+212% +$3.25M 0.69% 20
2023
Q3 		$1.83M Buy
100,156
+60,108
+150% +$1.27M 0.14% 165
2023
Q2 		$864K Buy
40,048
+35,285
+741% +$953K 0.08% 362
2023
Q1 		$140K Buy
4,763
+4,753
+47,530% +$165K 0.03% 544
2022
Q4 		$370 Buy
+10
New +$355 ﹤0.01% 1030

Other funds holding AMLX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
CC
Commodore Capital New York $1.68B AUM 375.52% 1-Year Est. Return
SVCM
Saturn V Capital Management Austin, Texas $697M AUM 628.57% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
FLAM
First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

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

Dark Forest Capital Management sold out of Amylyx Pharmaceuticals (AMLX) in Q4 2025, closing a stake of 86,795 shares — an estimated $1.18M sold.

Dark Forest Capital Management first reported a position in AMLX in Q4 2022 and held it in 6 quarters. The position peaked at $4.6M in Q4 2023. 179 funds tracked by Wall St. Rank hold AMLX as of Q4 2025.

  • Dark Forest Capital Management reported no remaining Amylyx Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Dark Forest Capital Management sold 86,795 Amylyx Pharmaceuticals shares in Q4 2025, an estimated $1.18M.
  • Dark Forest Capital Management first reported a position in Amylyx Pharmaceuticals in Q4 2022 and held it in 6 quarters.
  • Dark Forest Capital Management's Amylyx Pharmaceuticals position peaked at $4.6M in Q4 2023.
  • 179 funds tracked by Wall St. Rank held Amylyx Pharmaceuticals as of Q4 2025.

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