D. E. Shaw & Co., Inc.
Position in AMSC — American Superconductor Corp /De/
CIK 1009207
New York, NY
Position in AMSC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$15,227,735
-$3,984,644 QoQ
Shares Held
366,845
-35.4% QoQ
Ownership
0.757%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#26
of 276 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 95%
Shared 0%
None 5%
Common Shares in AMSC Over Time
Shares Held
Position Value (USD)
Derivatives in AMSC
reported options exposure · as of Mar 31, 2026CallValue
$514,520
CallShares
15,200
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Specialty Industrial Machinery
Industrials · as of Jun 30, 2026D. E. Shaw & Co., Inc. holds $2,373,078,271 across 45 Specialty Industrial Machinery names. AMSC ranks #21 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | OTIS |
Otis Worldwide Corp
|
5,439,203 | $389,446,934 | |
| 2 | GNRC |
Generac Holdings Inc.
|
957,094 | $280,246,693 | |
| 3 | PH |
Parker-Hannifin Corp
|
246,577 | $241,181,894 | |
| 4 | CMI |
Cummins Inc
|
321,490 | $229,289,882 | |
| 5 | PNR |
PENTAIR plc
|
2,110,219 | $161,769,388 | |
| 6 | AME |
Ametek Inc/
|
591,116 | $143,014,604 | |
| 7 | EMR |
Emerson Electric Co
|
728,223 | $104,245,121 | |
| 8 | GEV |
GE Vernova Inc.
|
65,033 | $76,404,669 |
All Filings in AMSC
Export CSV
34 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $15,227,735 | 366,845 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $19,212,379 | 567,574 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $514,520 | 15,200 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $12,753,798 | 443,148 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $2,757,124 | 95,800 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $5,547,026 | 93,400 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $44,703,030 | 752,703 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $319,203 | 8,700 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $4,903,397 | 133,644 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $438,988 | 24,200 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $1,360,336 | 74,991 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $6,211,906 | 252,209 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $3,918,633 | 159,100 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $2,459,120 | 104,200 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $5,980,546 | 253,413 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $15,209,510 | 650,257 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $820,989 | 35,100 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $3,893,514 | 288,195 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $4,854,187 | 435,744 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $2,824,665 | 374,128 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $2,135,091 | 341,069 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $1,659,923 | 338,070 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $1,709,281 | 464,479 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $2,600,050 | 593,619 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $3,371,443 | 650,858 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $4,565,481 | 599,932 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $6,445,202 | 592,390 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $7,410,299 | 508,251 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $7,153,845 | 411,377 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $3,421,027 | 180,434 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $3,798,723 | 162,200 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $786,770 | 54,335 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $645,805 | 79,435 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $581,027 | 106,027 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||