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Dark Forest Capital Management’s Collegium Pharmaceutical COLL Stock Holding History

Dark Forest Capital Management’s Portfolio COLL Stock Details COLL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-35,044
Closed -$1.23M – 1034
2025
Q3 		$1.23M Buy
+35,044
New +$1.22M 0.05% 664
2023
Q4 		– Sell
-14,208
Closed -$318K – 591
2023
Q3 		$318K Buy
+14,208
New +$324K 0.02% 885

Other funds holding COLL

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
EAM
Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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

Dark Forest Capital Management sold out of Collegium Pharmaceutical (COLL) in Q4 2025, closing a stake of 35,044 shares — an estimated $1.23M sold.

Dark Forest Capital Management first reported a position in COLL in Q3 2023 and held it in 2 quarters. The position peaked at $1.23M in Q3 2025. 278 funds tracked by Wall St. Rank hold COLL as of Q4 2025.

  • Dark Forest Capital Management reported no remaining Collegium Pharmaceutical position as of Q4 2025 after selling out during the quarter.
  • Dark Forest Capital Management sold 35,044 Collegium Pharmaceutical shares in Q4 2025, an estimated $1.23M.
  • Dark Forest Capital Management first reported a position in Collegium Pharmaceutical in Q3 2023 and held it in 2 quarters.
  • Dark Forest Capital Management's Collegium Pharmaceutical position peaked at $1.23M in Q3 2025.
  • 278 funds tracked by Wall St. Rank held Collegium Pharmaceutical as of Q4 2025.

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