Simplex Trading
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Simplex Trading’s Dyne Therapeutics DYN Stock Holding History

Simplex Trading’s Portfolio DYN Stock Details DYN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$72.5K Sell
4,000
-31,600
-89% -$545K ﹤0.01% 5455
2025
Q4 		$696K Buy
35,600
+29,800
+514% +$564K ﹤0.01% 2979
2025
Q3 		$73K Buy
5,800
+2,400
+71% +$27.4K ﹤0.01% 6075
2025
Q2 		$32K Buy
3,400
+1,200
+55% +$13.2K ﹤0.01% 6336
2025
Q1 		$23K Sell
2,200
-27,100
-92% -$388K ﹤0.01% 6459
2024
Q4 		$690K Sell
29,300
-25,200
-46% -$745K ﹤0.01% 3219
2024
Q3 		$1.96M Buy
54,500
+51,600
+1,779% +$2.05M ﹤0.01% 2298
2024
Q2 		$102K Sell
2,900
-3,100
-52% -$90.1K ﹤0.01% 5350
2024
Q1 		$170K Buy
6,000
+5,300
+757% +$120K ﹤0.01% 5033
2023
Q4 		$9K Buy
+700
New +$6.84K ﹤0.01% 7504
2023
Q3 		– Sell
-200
Closed -$2K – 8908
2023
Q2 		$2K Sell
200
-500
-71% -$5.9K ﹤0.01% 8393
2023
Q1 		$8K Sell
700
-1,800
-72% -$23.4K ﹤0.01% 7711
2022
Q4 		$28K Sell
2,500
-1,300
-34% -$15K ﹤0.01% 6539
2022
Q3 		$48K Buy
3,800
+3,600
+1,800% +$41.3K ﹤0.01% 6501
2022
Q2 		$1K Sell
200
-700
-78% -$4.82K ﹤0.01% 9556
2022
Q1 		$8K Buy
+900
New +$7.66K ﹤0.01% 9047

Other funds holding DYN

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
FIS
FCPM III Services Naarden, Netherlands $722M AUM 73.61% 1-Year Est. Return

Simplex Trading's DYN Position: Q1 2026 in Review

Simplex Trading reduced its Dyne Therapeutics (DYN) stake by 81% in Q1 2026, selling an estimated $129K and leaving 1,734 shares worth $31.4K. The position accounts for ﹤0.01% of the portfolio, ranked #6333.

Simplex Trading first reported a position in DYN in Q2 2022 and has held it in 10 quarters since. The position peaked at $1.41M in Q1 2024. 227 funds tracked by Wall St. Rank hold DYN as of Q1 2026.

  • Simplex Trading held 1,734 shares of Dyne Therapeutics worth $31.4K as of Q1 2026.
  • Simplex Trading sold 7,452 Dyne Therapeutics shares in Q1 2026, an estimated $129K.
  • Dyne Therapeutics made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6333 holding.
  • Simplex Trading first reported a position in Dyne Therapeutics in Q2 2022 and has held it in 10 quarters since.
  • Simplex Trading's Dyne Therapeutics position peaked at $1.41M in Q1 2024.
  • 227 funds tracked by Wall St. Rank held Dyne Therapeutics as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.