Simplex Trading
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Simplex Trading’s Praxis Precision Medicines PRAX Stock Holding History

Simplex Trading’s Portfolio PRAX Stock Details PRAX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.9M Buy
+5,900
New +$1.83M ﹤0.01% 1858
2025
Q4 		– Sell
-5,100
Closed -$270K – 9749
2025
Q3 		$270K Buy
5,100
+1,300
+34% +$63K ﹤0.01% 4604
2025
Q2 		$159K Sell
3,800
-6,900
-64% -$263K ﹤0.01% 4750
2025
Q1 		$405K Sell
10,700
-10,600
-50% -$662K ﹤0.01% 3621
2024
Q4 		$1.64M Sell
21,300
-1,100
-5% -$79.6K ﹤0.01% 2375
2024
Q3 		$1.29M Buy
22,400
+20,800
+1,300% +$1.12M ﹤0.01% 2686
2024
Q2 		$66K Buy
1,600
+100
+7% +$4.73K ﹤0.01% 5795
2024
Q1 		$91K Buy
+1,500
New +$67.3K ﹤0.01% 5685
2023
Q4 		– Sell
-1,533
Closed -$39K – 9593
2023
Q3 		$39K Buy
1,533
+580
+61% +$11K ﹤0.01% 6033
2023
Q2 		$16K Buy
953
+433
+83% +$6.63K ﹤0.01% 6989
2023
Q1 		$6K Buy
+520
New +$21.9K ﹤0.01% 7928
2022
Q4 		– Sell
-440
Closed -$14K – 10153
2022
Q3 		$14K Sell
440
-387
-47% -$19.3K ﹤0.01% 7921
2022
Q2 		$30K Buy
827
+574
+227% +$61.3K ﹤0.01% 7159
2022
Q1 		$38K Buy
253
+246
+3,514% +$50.5K ﹤0.01% 7507
2021
Q4 		$1K Sell
7
-33
-83% -$9.68K ﹤0.01% 10230
2021
Q3 		$11K Hold
40
– – ﹤0.01% 8879
2021
Q2 		$10K Buy
+40
New +$14.3K ﹤0.01% 9104

Other funds holding PRAX

Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
CAM
Cormorant Asset Management Boston, Massachusetts $1.99B AUM 737.95% 1-Year Est. Return

Simplex Trading's PRAX Position: Q1 2026 in Review

Simplex Trading opened a new position in Praxis Precision Medicines (PRAX) in Q1 2026: 1,660 shares worth $535K. The stake represents ﹤0.01% of the portfolio and ranks #3170 among its holdings. This is a return to the name: Simplex Trading previously reported a position in PRAX as recently as Q3 2025.

Simplex Trading first reported a position in PRAX in Q4 2021 and has held it in 13 quarters since. The position peaked at $1.3M in Q4 2024. 289 funds tracked by Wall St. Rank hold PRAX as of Q1 2026.

  • Simplex Trading held 1,660 shares of Praxis Precision Medicines worth $535K as of Q1 2026.
  • Praxis Precision Medicines was a new Simplex Trading position in Q1 2026.
  • Praxis Precision Medicines made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3170 holding.
  • Simplex Trading first reported a position in Praxis Precision Medicines in Q4 2021 and has held it in 13 quarters since.
  • Simplex Trading's Praxis Precision Medicines position peaked at $1.3M in Q4 2024.
  • 289 funds tracked by Wall St. Rank held Praxis Precision Medicines as of Q1 2026.

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