Dimensional Fund Advisors
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Dimensional Fund Advisors’s Cyclerion Therapeutics CYCN Stock Holding History

Dimensional Fund Advisors’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
Q2 		$39.7K Buy
+11,724
New +$38K ﹤0.01% 3206
2022
Q2 		– Sell
-2,253
Closed -$50K – 3473
2022
Q1 		$50K Sell
2,253
-3,840
-63% -$92.5K ﹤0.01% 3464
2021
Q4 		$210K Sell
6,093
-805
-12% -$38K ﹤0.01% 3329
2021
Q3 		$424K Sell
6,898
-1,052
-13% -$68.8K ﹤0.01% 3215
2021
Q2 		$620K Buy
7,950
+4,893
+160% +$306K ﹤0.01% 3117
2021
Q1 		$171K Sell
3,057
-130
-4% -$9.76K ﹤0.01% 3308
2020
Q4 		$195K Buy
3,187
+255
+9% +$17.4K ﹤0.01% 3225
2020
Q3 		$357K Sell
2,932
-92
-3% -$10.5K ﹤0.01% 3124
2020
Q2 		$357K Sell
3,024
-2,617
-46% -$219K ﹤0.01% 3133
2020
Q1 		$299K Buy
5,641
+4,232
+300% +$302K ﹤0.01% 3147
2019
Q4 		$77K Buy
+1,409
New +$132K ﹤0.01% 3330
2019
Q3 		– Sell
-886
Closed -$203K – 3425
2019
Q2 		$203K Buy
+886
New +$251K ﹤0.01% 3320

Other funds holding CYCN

KCM
Kalehua Capital Management Dallas, Texas $174M AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $2.7B AUM 88.53% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
RC
Rangeley Capital New Canaan, Connecticut $109M AUM 97.13% 1-Year Est. Return
HF
HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

Dimensional Fund Advisors's CYCN Position: Q2 2026 in Review

Dimensional Fund Advisors opened a new position in Cyclerion Therapeutics (CYCN) in Q2 2026: 11,724 shares worth $39.7K. The stake represents ﹤0.01% of the portfolio and ranks #3206 among its holdings. This is a return to the name: Dimensional Fund Advisors previously reported a position in CYCN as recently as Q1 2022.

Dimensional Fund Advisors first reported a position in CYCN in Q2 2019 and has held it in 12 quarters since. The position peaked at $620K in Q2 2021. 21 funds tracked by Wall St. Rank hold CYCN as of Q2 2026.

  • Dimensional Fund Advisors held 11,724 shares of Cyclerion Therapeutics worth $39.7K as of Q2 2026.
  • Cyclerion Therapeutics was a new Dimensional Fund Advisors position in Q2 2026.
  • Cyclerion Therapeutics made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q2 2026, its #3206 holding.
  • Dimensional Fund Advisors first reported a position in Cyclerion Therapeutics in Q2 2019 and has held it in 12 quarters since.
  • Dimensional Fund Advisors's Cyclerion Therapeutics position peaked at $620K in Q2 2021.
  • 21 funds tracked by Wall St. Rank held Cyclerion Therapeutics as of Q2 2026.

Based on Dimensional Fund Advisors's 13F filing for Q2 2026, filed 11 Aug 2026.