Rockefeller Capital Management L.P.

Position in AMSC — American Superconductor Corp /De/

CIK 1739439 NEW YORK, NY

Position in AMSC

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$64,589

+$11,343 QoQ

Shares Held

1,556

-1.1% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#208

of 276 holders

Holding Since

Dec 2021

9 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

Rockefeller Capital Management L.P. holds $1,298,648,512 across 53 Specialty Industrial Machinery names. AMSC ranks #40 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GEV	GE Vernova Inc.	420,587	$494,130,839
2	PH	Parker-Hannifin Corp	194,814	$190,551,467
3	EMR	Emerson Electric Co	1,167,295	$167,098,277
4	ETN	Eaton Corp plc	306,094	$130,432,774
5	ROK	Rockwell Automation, Inc	146,268	$72,414,359
6	CMI	Cummins Inc	97,188	$69,315,453
7	MIR	Mirion Technologies, Inc.	1,466,144	$26,287,959
8	NDSN	Nordson Corp	84,377	$25,455,695

9 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$64,589	1,556	-1.1%	Shares	Defined	2026-08-13
2026-03-31	$53,246	1,573	+0.6%	Shares	Defined	2026-05-14
2025-12-31	$44,983	1,563	+45.9%	Shares	Defined	2026-03-17
2025-09-30	$63,606	1,071	-10.8%	Shares	Defined	2025-11-14
2022-12-31	$4	1,200	0.0%	Shares	Defined	2023-03-06
2022-09-30	$5,256	1,200	0.0%	Shares	Defined	2022-11-02
2022-06-30	$6,216	1,200	0.0%	Shares	Defined	2022-08-12
2022-03-31	$9,132	1,200	0.0%	Shares	Defined	2022-05-13
2021-12-31	$13,056	1,200	—	Shares	Defined	2022-02-14
No filing history on record for this holder in this stock.