Mangrove Partners’s American Superconductor AMSC Stock Holding History

Mangrove Partners’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 Q2	–	Sell	-8,719	Closed	-$295K	–	430
2026 Q1	$295K	Buy	+8,719	New	+$275K	0.02%	261

Other funds holding AMSC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

OAM

Oberweis Asset Management Lisle, Illinois $4.84B AUM 160.95% 1-Year Est. Return

Mangrove Partners's AMSC Position: Q2 2026 in Review

Mangrove Partners sold out of American Superconductor (AMSC) in Q2 2026, closing a stake of 8,719 shares — an estimated $295K sold.

Mangrove Partners first reported a position in AMSC in Q1 2026 and held it in 1 quarter. The position peaked at $295K in Q1 2026. 279 funds tracked by Wall St. Rank hold AMSC as of Q2 2026.

Mangrove Partners reported no remaining American Superconductor position as of Q2 2026 after selling out during the quarter.
Mangrove Partners sold 8,719 American Superconductor shares in Q2 2026, an estimated $295K.
Mangrove Partners first reported a position in American Superconductor in Q1 2026 and held it in 1 quarter.
Mangrove Partners's American Superconductor position peaked at $295K in Q1 2026.
279 funds tracked by Wall St. Rank held American Superconductor as of Q2 2026.

Based on Mangrove Partners's 13F filing for Q2 2026, filed 14 Aug 2026.