Simplex Trading
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Simplex Trading’s American Superconductor AMSC Stock Holding History

Simplex Trading’s Portfolio AMSC Stock Details AMSC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$992K Buy
+29,300
New +$925K ﹤0.01% 2507
2025
Q4 		– Sell
-53,200
Closed -$3.16M – 8431
2025
Q3 		$3.16M Sell
53,200
-25,700
-33% -$1.28M ﹤0.01% 1881
2025
Q2 		$2.89M Buy
78,900
+10,300
+15% +$253K ﹤0.01% 1791
2025
Q1 		$1.24M Sell
68,600
-34,200
-33% -$853K ﹤0.01% 2489
2024
Q4 		$2.53M Sell
102,800
-57,800
-36% -$1.59M ﹤0.01% 1995
2024
Q3 		$3.79M Buy
160,600
+33,200
+26% +$765K ﹤0.01% 1710
2024
Q2 		$2.98M Buy
127,400
+17,300
+16% +$286K ﹤0.01% 1842
2024
Q1 		$1.49M Sell
110,100
-68,800
-38% -$853K ﹤0.01% 2698
2023
Q4 		$1.99M Sell
178,900
-85,000
-32% -$719K ﹤0.01% 2355
2023
Q3 		$1.99M Buy
263,900
+225,200
+582% +$1.87M ﹤0.01% 2074
2023
Q2 		$242K Sell
38,700
-3,700
-9% -$18K ﹤0.01% 4077
2023
Q1 		$208K Buy
42,400
+32,600
+333% +$164K ﹤0.01% 4270
2022
Q4 		$36K Buy
9,800
+5,800
+145% +$22.7K ﹤0.01% 6241
2022
Q3 		$17K Buy
4,000
+1,500
+60% +$7.76K ﹤0.01% 7662
2022
Q2 		$12K Sell
2,500
-2,300
-48% -$13.3K ﹤0.01% 8100
2022
Q1 		$36K Buy
4,800
+3,200
+200% +$27.4K ﹤0.01% 7563
2021
Q4 		$17K Sell
1,600
-68,900
-98% -$993K ﹤0.01% 8528
2021
Q3 		$1.25M Sell
70,500
-100
-0.1% -$1.39K ﹤0.01% 2765
2021
Q2 		$1.23M Buy
70,600
+70,250
+20,071% +$1.12M ﹤0.01% 2820
2021
Q1 		$663K Buy
350
+144
+70% +$3.56K ﹤0.01% 2944
2020
Q4 		$482K Sell
206
-15
-7% -$266 ﹤0.01% 3472
2020
Q3 		$320K Buy
221
+90
+69% +$1.01K ﹤0.01% 3530
2020
Q2 		$106K Buy
131
+103
+368% +$673 ﹤0.01% 4731
2020
Q1 		$15K Sell
28
-6
-18% -$41 ﹤0.01% 6161
2019
Q4 		$26K Sell
34
-60
-64% -$483 ﹤0.01% 5749
2019
Q3 		$73K Sell
94
-1
-1% -$9 ﹤0.01% 4655
2019
Q2 		$88K Sell
95
-19
-17% -$202 ﹤0.01% 4315
2019
Q1 		$146K Buy
114
+97
+571% +$1.32K ﹤0.01% 3938
2018
Q4 		$18K Sell
17
-51
-75% -$436 ﹤0.01% 5405
2018
Q3 		$47K Buy
68
+63
+1,260% +$376 ﹤0.01% 5222
2018
Q2 		$3K Sell
5
-49
-91% -$320 ﹤0.01% 6880
2018
Q1 		$7K Buy
+54
New +$277 ﹤0.01% 4300
2017
Q4 		– Sell
-570
Closed -$7K – 5916
2017
Q3 		$7K Buy
+570
New +$2.21K ﹤0.01% 4064
2017
Q2 		– Sell
-16
Closed -$1K – 6015
2017
Q1 		$1K Buy
+16
New +$108 ﹤0.01% 5527
2016
Q3 		– Sell
-50
Closed -$9K – 5728
2016
Q2 		$9K Buy
50
+10
+25% +$93 ﹤0.01% 3660
2016
Q1 		$7K Buy
40
+26
+186% +$174 ﹤0.01% 3772
2015
Q4 		$2K Buy
+14
New +$68 ﹤0.01% 4431

Other funds holding AMSC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
OAM
Oberweis Asset Management Lisle, Illinois $3.39B AUM 105.5% 1-Year Est. Return
AIC
AWM Investment Company New York $903M AUM 163.47% 1-Year Est. Return

Simplex Trading's AMSC Position: Q4 2025 in Review

Simplex Trading sold out of American Superconductor (AMSC) in Q4 2025, closing a stake of 1,363 shares — an estimated $80K sold.

Simplex Trading first reported a position in AMSC in Q4 2014 and held it in 35 quarters. The position peaked at $748K in Q2 2024. 240 funds tracked by Wall St. Rank hold AMSC as of Q4 2025.

  • Simplex Trading reported no remaining American Superconductor position as of Q4 2025 after selling out during the quarter.
  • Simplex Trading sold 1,363 American Superconductor shares in Q4 2025, an estimated $80K.
  • Simplex Trading first reported a position in American Superconductor in Q4 2014 and held it in 35 quarters.
  • Simplex Trading's American Superconductor position peaked at $748K in Q2 2024.
  • 240 funds tracked by Wall St. Rank held American Superconductor as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.