Simplex Trading
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Simplex Trading’s Acadia Pharmaceuticals ACAD Stock Holding History

Simplex Trading’s Portfolio ACAD Stock Details ACAD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$683K Buy
30,700
+26,800
+687% +$640K ﹤0.01% 2916
2025
Q4 		$104K Sell
3,900
-17,800
-82% -$425K ﹤0.01% 4953
2025
Q3 		$463K Buy
21,700
+7,600
+54% +$180K ﹤0.01% 3925
2025
Q2 		$304K Sell
14,100
-20,000
-59% -$372K ﹤0.01% 4050
2025
Q1 		$566K Sell
34,100
-9,800
-22% -$178K ﹤0.01% 3264
2024
Q4 		$805K Sell
43,900
-27,800
-39% -$449K ﹤0.01% 3055
2024
Q3 		$1.1M Buy
71,700
+22,900
+47% +$382K ﹤0.01% 2844
2024
Q2 		$793K Sell
48,800
-111,400
-70% -$1.8M ﹤0.01% 3161
2024
Q1 		$2.96M Buy
160,200
+128,600
+407% +$3.19M ﹤0.01% 2043
2023
Q4 		$989K Sell
31,600
-18,900
-37% -$451K ﹤0.01% 3011
2023
Q3 		$1.05M Buy
50,500
+22,600
+81% +$614K ﹤0.01% 2610
2023
Q2 		$668K Sell
27,900
-300
-1% -$6.67K ﹤0.01% 3013
2023
Q1 		$530K Sell
28,200
-13,800
-33% -$263K ﹤0.01% 3207
2022
Q4 		$668K Sell
42,000
-15,400
-27% -$241K ﹤0.01% 2880
2022
Q3 		$939K Sell
57,400
-66,900
-54% -$1.08M ﹤0.01% 2718
2022
Q2 		$1.75M Sell
124,300
-23,200
-16% -$433K ﹤0.01% 2011
2022
Q1 		$3.57M Sell
147,500
-178,600
-55% -$4.32M ﹤0.01% 1542
2021
Q4 		$7.61M Buy
326,100
+278,900
+591% +$5.61M 0.01% 944
2021
Q3 		$1.17M Sell
47,200
-100
-0.2% -$1.93K ﹤0.01% 2850
2021
Q2 		$1.15M Buy
47,300
+46,460
+5,531% +$1.05M ﹤0.01% 2895
2021
Q1 		$2.17M Buy
+840
New +$37K ﹤0.01% 1526
2020
Q2 		– Sell
-260
Closed -$1.1M – 7489
2020
Q1 		$1.1M Sell
260
-496
-66% -$20.4K ﹤0.01% 1792
2019
Q4 		$3.23M Buy
756
+182
+32% +$7.92K 0.01% 1096
2019
Q3 		$2.06M Buy
574
+276
+93% +$8.37K 0.01% 1314
2019
Q2 		$796K Sell
298
-2
-0.7% -$51 ﹤0.01% 2115
2019
Q1 		$805K Sell
300
-744
-71% -$17.4K ﹤0.01% 2183
2018
Q4 		$1.69M Buy
1,044
+435
+71% +$8.45K 0.01% 1208
2018
Q3 		$1.26M Buy
609
+361
+146% +$5.68K ﹤0.01% 1653
2018
Q2 		$378K Sell
248
-167
-40% -$2.98K ﹤0.01% 2749
2018
Q1 		$53K Buy
415
+155
+60% +$4.29K ﹤0.01% 2373
2017
Q4 		$48K Sell
260
-64
-20% -$2.05K ﹤0.01% 2481
2017
Q3 		$139K Buy
324
+116
+56% +$3.77K 0.01% 1454
2017
Q2 		$16K Sell
208
-697
-77% -$20.8K ﹤0.01% 3503
2017
Q1 		$138K Sell
905
-234
-21% -$8.26K 0.01% 1479
2016
Q4 		$141K Buy
1,139
+564
+98% +$14.9K 0.01% 1277
2016
Q3 		$68K Buy
575
+23
+4% +$780 ﹤0.01% 1842
2016
Q2 		$90K Sell
552
-785
-59% -$26.3K 0.01% 1554
2016
Q1 		$450K Buy
1,337
+972
+266% +$21.2K 0.04% 495
2015
Q4 		$288K Buy
365
+75
+26% +$2.64K 0.02% 662
2015
Q3 		$312K Buy
290
+102
+54% +$4.24K 0.02% 666
2015
Q2 		$292K Sell
188
-375
-67% -$14.5K 0.02% 596
2015
Q1 		$386K Buy
+563
New +$19.4K 0.04% 411

Other funds holding ACAD

BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return

Simplex Trading's ACAD Position: Q1 2026 in Review

Simplex Trading sold out of Acadia Pharmaceuticals (ACAD) in Q1 2026, closing a stake of 2,435 shares — an estimated $58.2K sold.

Simplex Trading first reported a position in ACAD in Q2 2015 and held it in 37 quarters. The position peaked at $2.44M in Q3 2019. 340 funds tracked by Wall St. Rank hold ACAD as of Q1 2026.

  • Simplex Trading reported no remaining Acadia Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • Simplex Trading sold 2,435 Acadia Pharmaceuticals shares in Q1 2026, an estimated $58.2K.
  • Simplex Trading first reported a position in Acadia Pharmaceuticals in Q2 2015 and held it in 37 quarters.
  • Simplex Trading's Acadia Pharmaceuticals position peaked at $2.44M in Q3 2019.
  • 340 funds tracked by Wall St. Rank held Acadia Pharmaceuticals as of Q1 2026.

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