Simplex Trading
SLDB icon

Simplex Trading’s Solid Biosciences SLDB Stock Holding History

Simplex Trading’s Portfolio SLDB Stock Details SLDB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$44K Buy
4,400
+3,500
+389% +$26.5K ﹤0.01% 6423
2026
Q1 		$6.48K Sell
900
-2,200
-71% -$14.1K ﹤0.01% 7713
2025
Q4 		$17.5K Sell
3,100
-2,100
-40% -$11.4K ﹤0.01% 6598
2025
Q3 		$32K Sell
5,200
-24,700
-83% -$144K ﹤0.01% 6919
2025
Q2 		$145K Sell
29,900
-11,400
-28% -$40.3K ﹤0.01% 4846
2025
Q1 		$152K Buy
41,300
+38,400
+1,324% +$164K ﹤0.01% 4617
2024
Q4 		$11K Sell
2,900
-11,300
-80% -$62.1K ﹤0.01% 7151
2024
Q3 		$98K Buy
14,200
+9,600
+209% +$77.9K ﹤0.01% 5257
2024
Q2 		$26K Sell
4,600
-4,400
-49% -$39.4K ﹤0.01% 6690
2024
Q1 		$119K Buy
+9,000
New +$84.2K ﹤0.01% 5416
2022
Q4 		– Sell
-4,707
Closed -$32K – 10307
2022
Q3 		$32K Buy
4,707
+487
+12% +$4.91K ﹤0.01% 6998
2022
Q2 		$38K Buy
4,220
+3,327
+373% +$34.6K ﹤0.01% 6853
2022
Q1 		$16K Buy
893
+146
+20% +$2.58K ﹤0.01% 8482
2021
Q4 		$19K Sell
747
-1,213
-62% -$37.1K ﹤0.01% 8426
2021
Q3 		$110K Sell
1,960
-13
-0.7% -$552 ﹤0.01% 6487
2021
Q2 		$108K Buy
1,973
+1,867
+1,761% +$123K ﹤0.01% 6626
2021
Q1 		$878K Buy
106
+96
+960% +$10.6K ﹤0.01% 2569
2020
Q4 		$117K Buy
+10
New +$632 ﹤0.01% 5282
2020
Q3 		– Sell
-3
Closed -$14K – 8441
2020
Q2 		$14K Sell
3
-68
-96% -$2.82K ﹤0.01% 6458
2020
Q1 		$253K Sell
71
-9
-11% -$445 ﹤0.01% 3322
2019
Q4 		$532K Buy
80
+48
+150% +$5.3K ﹤0.01% 2691
2019
Q3 		$496K Buy
32
+16
+100% +$1.81K ﹤0.01% 2639
2019
Q2 		$142K Sell
16
-6
-27% -$654 ﹤0.01% 3828
2019
Q1 		$300K Buy
22
+21
+2,100% +$5.26K ﹤0.01% 3201
2018
Q4 		$53K Buy
+1
New +$470 ﹤0.01% 4475

Other funds holding SLDB

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
AC
Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Simplex Trading's SLDB Position: Q2 2026 in Review

Simplex Trading reduced its Solid Biosciences (SLDB) stake by 38% in Q2 2026, selling an estimated $44.1K and leaving 9,285 shares worth $92.8K. The position accounts for ﹤0.01% of the portfolio, ranked #5639.

Simplex Trading first reported a position in SLDB in Q3 2018 and has held it in 23 quarters since. The position peaked at $585K in Q1 2019. 157 funds tracked by Wall St. Rank hold SLDB as of Q2 2026.

  • Simplex Trading held 9,285 shares of Solid Biosciences worth $92.8K as of Q2 2026.
  • Simplex Trading sold 5,812 Solid Biosciences shares in Q2 2026, an estimated $44.1K.
  • Solid Biosciences made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5639 holding.
  • Simplex Trading first reported a position in Solid Biosciences in Q3 2018 and has held it in 23 quarters since.
  • Simplex Trading's Solid Biosciences position peaked at $585K in Q1 2019.
  • 157 funds tracked by Wall St. Rank held Solid Biosciences as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.