AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 57,693 Value ($000) $1,660 Avg Close $43.24 Range $28.68 - $70.49

Q3 2025

Shares 70,425 Value ($000) $4,183 Avg Close $49.99 Range $34.87 - $65.70

Q2 2025

Shares 61,162 Value ($000) $2,244 Avg Close $24.58 Range $13.98 - $37.89

Q1 2025

Shares 49,173 Value ($000) $892 Avg Close $24.93 Range $17.08 - $35.44

Q4 2024

Shares 51,119 Value ($000) $1,259 Avg Close $27.58 Range $20.60 - $38.02

Q3 2024

Shares 50,513 Value ($000) $1,192 Avg Close $23.05 Range $17.02 - $32.70

Q2 2024

Shares 46,276 Value ($000) $1,082 Avg Close $16.52 Range $11.36 - $27.38

Q1 2024

Shares 1,388 Value ($000) $19 Avg Close $12.40 Range $9.37 - $15.24

Q4 2023

Shares 1,388 Value ($000) $15 Avg Close $8.46 Range $5.78 - $11.81

Q3 2023

Shares 1,388 Value ($000) $10 Avg Close $8.30 Range $5.75 - $17.37

Q2 2023

Shares 1,388 Value ($000) $9 Avg Close $4.87 Range $3.63 - $7.58

Q1 2022

Shares 35,760 Value ($000) $272 Avg Close $8.56 Range $7.04 - $11.37

Q4 2021

Shares 35,868 Value ($000) $390 Avg Close $14.41 Range $10.20 - $19.36

Q3 2021

Shares 36,523 Value ($000) $533 Avg Close $13.86 Range $11.25 - $18.14

Q2 2021

Shares 35,143 Value ($000) $611 Avg Close $16.00 Range $12.73 - $20.00

Q1 2021

Shares 37,643 Value ($000) $714 Avg Close $24.75 Range $16.85 - $31.78

Q4 2020

Shares 38,716 Value ($000) $907 Avg Close $17.73 Range $12.90 - $26.44

Q3 2020

Shares 28,690 Value ($000) $415 Avg Close $11.18 Range $7.51 - $16.47

Q2 2020

Shares 26,373 Value ($000) $214 Avg Close $6.54 Range $5.09 - $8.88

Q1 2020

Shares 22,704 Value ($000) $124 Avg Close $6.86 Range $4.40 - $8.60

Q4 2019

Shares 21,654 Value ($000) $170 Avg Close $8.05 Range $7.24 - $9.82

Q3 2019

Shares 21,330 Value ($000) $167 Avg Close $8.50 Range $7.26 - $10.46

Q2 2019

Shares 19,260 Value ($000) $179 Avg Close $10.64 Range $8.08 - $13.47

Q1 2017

Shares 12,885 Value ($000) $88 Avg Close $6.73 Range $5.86 - $7.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	57,693	$1,660	$43.24	$28.68 - $70.49
Q3 2025	70,425	$4,183	$49.99	$34.87 - $65.70
Q2 2025	61,162	$2,244	$24.58	$13.98 - $37.89
Q1 2025	49,173	$892	$24.93	$17.08 - $35.44
Q4 2024	51,119	$1,259	$27.58	$20.60 - $38.02
Q3 2024	50,513	$1,192	$23.05	$17.02 - $32.70
Q2 2024	46,276	$1,082	$16.52	$11.36 - $27.38
Q1 2024	1,388	$19	$12.40	$9.37 - $15.24
Q4 2023	1,388	$15	$8.46	$5.78 - $11.81
Q3 2023	1,388	$10	$8.30	$5.75 - $17.37
Q2 2023	1,388	$9	$4.87	$3.63 - $7.58
Q1 2022	35,760	$272	$8.56	$7.04 - $11.37
Q4 2021	35,868	$390	$14.41	$10.20 - $19.36
Q3 2021	36,523	$533	$13.86	$11.25 - $18.14
Q2 2021	35,143	$611	$16.00	$12.73 - $20.00
Q1 2021	37,643	$714	$24.75	$16.85 - $31.78
Q4 2020	38,716	$907	$17.73	$12.90 - $26.44
Q3 2020	28,690	$415	$11.18	$7.51 - $16.47
Q2 2020	26,373	$214	$6.54	$5.09 - $8.88
Q1 2020	22,704	$124	$6.86	$4.40 - $8.60
Q4 2019	21,654	$170	$8.05	$7.24 - $9.82
Q3 2019	21,330	$167	$8.50	$7.26 - $10.46
Q2 2019	19,260	$179	$10.64	$8.08 - $13.47
Q1 2017	12,885	$88	$6.73	$5.86 - $7.82