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Jane Street’s American Superconductor AMSC Stock Holding History

Jane Street’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 		$1.67M Sell
49,200
-47,500
-49% -$1.5M ﹤0.01% 5433
2025
Q4 		$2.78M Buy
96,700
+14,000
+17% +$605K ﹤0.01% 4174
2025
Q3 		$4.91M Buy
82,700
+14,300
+21% +$715K ﹤0.01% 3444
2025
Q2 		$2.51M Buy
68,400
+19,600
+40% +$482K ﹤0.01% 4058
2025
Q1 		$885K Sell
48,800
-33,600
-41% -$838K ﹤0.01% 5800
2024
Q4 		$2.03M Buy
82,400
+9,800
+13% +$270K ﹤0.01% 4073
2024
Q3 		$1.71M Sell
72,600
-33,700
-32% -$777K ﹤0.01% 4794
2024
Q2 		$2.49M Buy
106,300
+400
+0.4% +$6.61K ﹤0.01% 4134
2024
Q1 		$1.43M Sell
105,900
-101,000
-49% -$1.25M ﹤0.01% 4745
2023
Q4 		$2.3M Sell
206,900
-99,900
-33% -$845K ﹤0.01% 4084
2023
Q3 		$2.32M Buy
+306,800
New +$2.55M ﹤0.01% 3808
2021
Q4 		– Sell
-25,200
Closed -$367K – 9996
2021
Q3 		$367K Sell
25,200
-37,400
-60% -$518K ﹤0.01% 7814
2021
Q2 		$1.09M Sell
62,600
-7,900
-11% -$126K ﹤0.01% 5647
2021
Q1 		$1.34M Buy
70,500
+28,900
+69% +$715K ﹤0.01% 4859
2020
Q4 		$974K Buy
+41,600
New +$738K ﹤0.01% 4690

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

Jane Street's AMSC Position: Q1 2026 in Review

Jane Street sold out of American Superconductor (AMSC) in Q1 2026, closing a stake of 242,767 shares — an estimated $7.66M sold.

Jane Street first reported a position in AMSC in Q2 2013 and held it in 18 quarters. The position peaked at $8.08M in Q3 2025. 244 funds tracked by Wall St. Rank hold AMSC as of Q1 2026.

  • Jane Street reported no remaining American Superconductor position as of Q1 2026 after selling out during the quarter.
  • Jane Street sold 242,767 American Superconductor shares in Q1 2026, an estimated $7.66M.
  • Jane Street first reported a position in American Superconductor in Q2 2013 and held it in 18 quarters.
  • Jane Street's American Superconductor position peaked at $8.08M in Q3 2025.
  • 244 funds tracked by Wall St. Rank held American Superconductor as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.