Position in AMSC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$852,117
-$6,483,617 QoQ
Shares Held
20,528
-90.5% QoQ
Ownership
0.042%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#107
of 276 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMSC Over Time
Shares Held
Position Value (USD)
Derivatives in AMSC
reported options exposure · as of Jun 30, 2026CallValue
$7,318,213
CallShares
176,300
PutValue
$9,663,528
PutShares
232,800
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, 2026CITADEL ADVISORS LLC holds $2,233,685,848 across 63 Specialty Industrial Machinery names. AMSC ranks #49 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PH |
Parker-Hannifin Corp
|
285,363 | $279,119,257 | |
| 2 | AME |
Ametek Inc/
|
1,117,983 | $270,484,806 | |
| 3 | GEV |
GE Vernova Inc.
|
145,490 | $170,930,380 | |
| 4 | IEX |
Idex Corp /De/
|
706,368 | $160,310,217 | |
| 5 | INIO |
Innio N.V.
|
3,784,191 | $149,664,754 | |
| 6 | OTIS |
Otis Worldwide Corp
|
1,953,085 | $139,840,886 | |
| 7 | CMI |
Cummins Inc
|
149,683 | $106,755,411 | |
| 8 | PNR |
PENTAIR plc
|
1,367,489 | $104,831,706 |
All Filings in AMSC
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $9,663,528 | 232,800 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $7,318,213 | 176,300 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $852,117 | 20,528 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $5,754,500 | 170,000 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $7,335,734 | 216,713 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $2,873,865 | 84,900 | Put | Defined | 2026-05-15 | |
| 2025-12-31 | $8,127,472 | 282,400 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $9,226,868 | 320,600 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $9,719,379 | 337,713 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $12,923,264 | 217,600 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $880,218 | 14,821 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $9,538,034 | 160,600 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $8,695,530 | 237,000 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $25,304,762 | 689,691 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $7,125,198 | 194,200 | Put | Defined | 2025-08-14 | |
| 2025-03-31 | $5,438,372 | 299,800 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $2,386,516 | 131,561 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $6,909,526 | 380,900 | Put | Defined | 2025-05-15 | |
| 2024-12-31 | $9,842,148 | 399,600 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $5,472,786 | 222,200 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $6,399,834 | 259,839 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $1,899,800 | 80,500 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $5,630,960 | 238,600 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $6,986,944 | 296,057 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $8,906,794 | 380,795 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $2,696,867 | 115,300 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $4,645,254 | 198,600 | Put | Defined | 2024-08-14 | |
| 2024-03-31 | $728,189 | 53,900 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $2,226,448 | 164,800 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $4,490,682 | 332,397 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $1,167,472 | 104,800 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $2,921,241 | 262,230 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $1,268,846 | 113,900 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $997,355 | 132,100 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $908,476 | 120,328 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $1,186,105 | 157,100 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $75,120 | 12,000 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $357,733 | 57,146 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $454,476 | 72,600 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $157,120 | 32,000 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $231,634 | 47,176 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $96,727 | 19,700 | Put | Defined | 2023-05-15 | |
| 2022-12-31 | $158,582 | 43,093 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $19,872 | 5,400 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $39,744 | 10,800 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $148,126 | 33,819 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $311,623 | 60,159 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $51,800 | 10,000 | Put | Defined | 2022-08-15 | |
| 2022-03-31 | $745,033 | 97,902 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $354,688 | 32,600 | Put | Defined | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||