XT
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XTX Topco’s Cyclerion Therapeutics CYCN Stock Holding History

XTX Topco’s Portfolio CYCN Stock Details CYCN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-10,027
Closed -$12.7K – 3926
2025
Q4 		$12.7K Buy
+10,027
New +$17.9K ﹤0.01% 3145
2021
Q4 		– Sell
-519
Closed -$32K – 746
2021
Q3 		$32K Sell
519
-379
-42% -$24.8K 0.01% 629
2021
Q2 		$70K Buy
898
+230
+34% +$14.4K 0.02% 697
2021
Q1 		$37K Buy
+668
New +$50.2K 0.02% 639

Other funds holding CYCN

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
KA
Kovack Advisors Ft. Lauderdale, Florida $1.87B AUM 29.51% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
Osaic Holdings
Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return

XTX Topco's CYCN Position: Q1 2026 in Review

XTX Topco sold out of Cyclerion Therapeutics (CYCN) in Q1 2026, closing a stake of 10,027 shares — an estimated $12.7K sold.

XTX Topco first reported a position in CYCN in Q1 2021 and held it in 4 quarters. The position peaked at $70K in Q2 2021. 17 funds tracked by Wall St. Rank hold CYCN as of Q1 2026.

  • XTX Topco reported no remaining Cyclerion Therapeutics position as of Q1 2026 after selling out during the quarter.
  • XTX Topco sold 10,027 Cyclerion Therapeutics shares in Q1 2026, an estimated $12.7K.
  • XTX Topco first reported a position in Cyclerion Therapeutics in Q1 2021 and held it in 4 quarters.
  • XTX Topco's Cyclerion Therapeutics position peaked at $70K in Q2 2021.
  • 17 funds tracked by Wall St. Rank held Cyclerion Therapeutics as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.