ALLIANCEBERNSTEIN L.P.
Position in AMSC — American Superconductor Corp /De/
CIK 1109448
NASHVILLE, TN
Position in AMSC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$2,271,427
+$767,810 QoQ
Shares Held
54,720
+23.2% QoQ
Ownership
0.113%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#74
of 277 holders
Holding Since
Mar 2020
12 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMSC Over Time
Shares Held
Position Value (USD)
Position in Specialty Industrial Machinery
Industrials · as of Jun 30, 2026ALLIANCEBERNSTEIN L.P. holds $6,129,823,841 across 53 Specialty Industrial Machinery names. AMSC ranks #42 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ETN |
Eaton Corp plc
|
4,622,743 | $1,969,843,246 | |
| 2 | GEV |
GE Vernova Inc.
|
803,446 | $943,936,567 | |
| 3 | ITT |
Itt Inc.
|
3,567,353 | $705,479,729 | |
| 4 | PH |
Parker-Hannifin Corp
|
385,182 | $376,754,217 | |
| 5 | ROK |
Rockwell Automation, Inc
|
511,356 | $253,162,128 | |
| 6 | CMI |
Cummins Inc
|
280,062 | $199,743,019 | |
| 7 | EMR |
Emerson Electric Co
|
1,235,094 | $176,803,706 | |
| 8 | GNRC |
Generac Holdings Inc.
|
600,867 | $175,939,866 |
All Filings in AMSC
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $2,271,427 | 54,720 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $1,503,617 | 44,420 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $1,131,629 | 39,320 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $2,335,214 | 39,320 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $1,310,566 | 35,720 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $647,960 | 35,720 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $879,783 | 35,720 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $842,992 | 35,720 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $835,490 | 35,720 | Shares | Defined | 2024-08-14 | |
| 2020-09-30 | $218,648 | 15,100 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $191,868 | 23,600 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $87,680 | 16,000 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||