American Superconductor Corporation
US ˙ NasdaqGS ˙ US0301112076

Introduction

This page provides a comprehensive analysis of the known insider trading history of Daniel P McGahn. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Daniel P McGahn has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:AMSC / American Superconductor Corporation Chairman, President and CEO, Director 1,183,134
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Daniel P McGahn. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases AMSC / American Superconductor Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in AMSC / American Superconductor Corporation. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2022-12-16 AMSC McGahn Daniel P 25,000 3.4907 25,000 3.4907 87,268 228 16.13 315,983 362.09
2017-05-10 AMSC McGahn Daniel P 25,000 4.0000 25,000 4.0000 100,000

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

AMSC / American Superconductor Corporation Insider Trades
Insider Sales AMSC / American Superconductor Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in AMSC / American Superconductor Corporation. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2025-08-04 AMSC McGahn Daniel P 73,105 54.2604 73,105 54.2604 3,966,707 16 48.1100 -449,624 -11.33
2025-08-04 AMSC McGahn Daniel P 27,743 55.1065 27,743 55.1065 1,528,820

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

AMSC / American Superconductor Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Daniel P McGahn as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-08-06 2025-08-04 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale -27,743 1,183,134 -2.29 55.11 -1,528,820 65,198,374
2025-08-06 2025-08-04 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale -73,105 1,210,877 -5.69 54.26 -3,966,707 65,702,670
2025-06-12 2025-06-11 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -500 1,283,982 -0.04 29.09 -14,545 37,351,036
2025-06-12 2025-06-11 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -12,315 1,284,482 -0.95 28.56 -351,697 36,682,751
2025-06-09 2025-06-06 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -7,689 1,296,797 -0.59 31.82 -244,670 41,265,118
2025-05-29 2025-05-27 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -98,149 1,304,486 -7.00 26.60 -2,610,783 34,699,588
2025-05-29 2025-05-27 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -24,506 1,402,635 -1.72 25.55 -626,052 35,832,976
2025-05-22 2025-05-20 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -12,815 1,427,141 -0.89 24.49 -313,878 34,954,965
2025-05-19 2025-05-15 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 240,000 1,439,956 20.00
2024-10-01 2024-09-30 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 180,000 1,199,956 17.65
2024-06-12 2024-06-11 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -37,165 1,019,956 -3.52 21.69 -806,046 22,121,112
2024-05-23 2024-05-21 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -1,620 1,057,121 -0.15 15.30 -24,794 16,179,025
2024-05-23 2024-05-21 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -18,939 1,058,741 -1.76 14.78 -279,947 15,649,780
2023-06-23 2023-06-22 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -36,902 1,077,680 -3.31 5.95 -219,596 6,413,058
2023-06-23 2023-06-21 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -73,802 1,114,582 -6.21 6.14 -453,351 6,846,654
2023-06-20 2023-06-15 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
D - Sale to Issuer -4,839 1,188,384 -0.41
2023-06-20 2023-06-15 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 250,000 1,193,223 26.50
2022-12-19 2022-12-16 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
P - Purchase 25,000 943,223 2.72 3.49 87,268 3,292,509
2022-11-02 2022-10-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 250,000 918,223 37.41
2022-06-13 2022-06-10 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -32,587 668,223 -4.65 5.98 -194,750 3,993,501
2022-06-02 2022-05-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -21,725 700,810 -3.01 5.45 -118,482 3,822,007
2021-11-02 2021-11-01 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -7,241 722,535 -0.99 18.96 -137,298 13,700,131
2021-08-06 2021-08-05 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 35,661 729,776 5.14 12.54 447,189 9,151,391
2021-07-06 2021-07-01 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -14,664 694,115 -2.07 17.66 -259,020 12,260,639
2021-05-24 2021-05-24 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
S - Sale X -8,690 708,779 -1.21 14.19 -123,277 10,054,810
2021-05-24 2021-05-20 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 75,000 717,469 11.67
2020-11-02 2020-10-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -7,392 642,469 -1.14 13.91 -102,823 8,936,744
2020-07-29 2020-07-27 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -16,651 649,861 -2.50 9.74 -162,181 6,329,646
2020-06-30 2020-06-28 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -14,969 666,512 -2.20 7.28 -108,974 4,852,207
2020-06-04 2020-06-02 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -16,628 681,481 -2.38 7.91 -131,527 5,390,515
2020-06-04 2020-06-02 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
D - Sale to Issuer -75,000 698,109 -9.70
2020-05-26 2020-05-21 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 250,000 773,109 47.79
2019-11-07 2019-11-05 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
D - Sale to Issuer -16,875 523,109 -3.13
2019-11-04 2019-10-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 125,000 539,984 30.12
2019-07-30 2019-07-27 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -16,651 414,984 -3.86 8.81 -146,695 3,656,009
2019-07-02 2019-06-28 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -14,985 431,635 -3.36 9.28 -139,061 4,005,573
2018-11-13 2018-11-08 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -3,747 446,620 -0.83 9.48 -35,522 4,233,958
2018-08-06 2018-08-02 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -3,744 450,367 -0.82 5.74 -21,491 2,585,107
2018-07-31 2018-07-27 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -16,662 454,111 -3.54 5.03 -83,810 2,284,178
2018-07-02 2018-06-28 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 135,000 470,773 40.21
2018-05-15 2018-05-14 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -14,795 335,773 -4.22 6.88 -101,790 2,310,118
2017-07-31 2017-07-27 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 225,000 350,568 179.19
2017-05-16 2017-05-14 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -15,655 125,568 -11.09 4.06 -63,559 509,806
2017-05-12 2017-05-10 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
P - Purchase 25,000 141,223 21.51 4.00 100,000 564,892
2016-08-22 2016-07-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -1,568 116,223 -1.33 9.18 -14,394 1,066,927
2016-05-17 2016-05-14 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -15,156 117,791 -11.40 10.54 -159,744 1,241,517
2015-08-04 2015-07-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -1,516 132,947 -1.13 5.00 -7,580 664,735
2015-06-02 2015-05-28 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
D - Sale to Issuer -2,500 134,463 -1.83
2015-05-15 2015-05-14 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 100,000 136,963 270.54
2015-05-12 2015-05-09 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -1,486 36,963 -3.86 6.51 -9,674 240,629
2014-08-04 2014-07-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -15,716 438,698 -3.46 1.99 -31,275 873,009
2014-06-09 2014-06-05 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -159,425 454,414 -25.97 1.38 -220,006 627,091
2014-05-28 2014-05-23 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -9,110 613,839 -1.46 1.45 -13,210 890,067
2014-05-13 2014-05-09 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -14,966 622,949 -2.35 1.28 -19,156 797,375
2014-04-16 2014-04-14 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Stock Option (Right to buy)
A - Award 1,000,000 1,000,000
2013-08-02 2013-07-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Stock Option (Right to buy)
A - Award 180,000 180,000
2013-08-02 2013-07-31 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 100,000 637,915 18.59
2013-05-24 2013-05-23 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -8,520 537,915 -1.56 2.68 -22,834 1,441,612
2013-05-10 2013-05-09 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -14,081 546,435 -2.51 2.44 -34,358 1,333,301
2012-10-26 2012-10-25 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
A - Award 450,000 560,516 407.18
2012-05-24 2012-05-23 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -8,340 110,516 -7.02 3.99 -33,277 440,959
2012-05-15 2012-05-12 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
F - Taxes -634 118,856 -0.53 4.03 -2,555 478,990
2012-05-10 2012-05-09 4 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Stock Option (Right to buy)
A - Award 125,000 125,000
2008-01-31 3 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
16,000
2008-01-31 3 AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Common Stock
292
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)