John Kosiba

Track

Insider profile

Currently holds a position at American Superconductor Corp

Performance

Overall performance
3.1
Performance over holding periods
4.2
30 days 90 days 120 days
Average return -2% 8.2% 15.1%
Success rate 64% 68% 82%
Transactions
7 29% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Performance for realised trades
4.4
Average return 733%
Success rate 73%
Average holding period 220
Transactions 28
Ranking by realised performance

Positions

Position Company Period
Chief Financial Officer, Senior Vice President, Principal Accounting Officer American Superconductor Corp April 4, 2017 -
John Kosiba's trades of American Superconductor Corp's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-11 2026-06-11
PlS Planned sale
66,105 +50.0%
340.76
US$251,292 		66,105 +50.0% 340.76 US$251,292
2026-06-11 2026-06-11
PlS Planned sale
92,435 -35.3%
255.77
US$2,655,252 		92,435 -35.3% 255.77 US$2,655,252
2026-06-11 2026-06-11
PrS Proposed sale
5,897
236.82
US$3,448,740 		5,897 236.82 US$3,448,740
2026-06-11 2026-06-11
PrS Proposed sale
6,769
37.46
US$253,579 		6,769 37.46 US$253,579
2026-06-11 2026-06-11
PlS Planned sale
1,743 -0.5%
37.85
US$65,975 		1,743 -0.5% 37.85 US$65,975
2026-06-11 2026-06-11
PlS Planned sale
1,743 -0.5%
37.85
US$65,975 		1,743 -0.5% 37.85 US$65,975
2026-06-11 2026-06-11
PlS Planned sale
5,026 -1.5%
37.33
US$187,604 		5,026 -1.5% 37.33 US$187,604
2026-06-11 2026-06-11
PlS Planned sale
5,026 -1.5%
37.33
US$187,604 		5,026 -1.5% 37.33 US$187,604
2026-06-10 2026-06-08
PlS Planned sale
1,549 -0.5%
42.35
US$65,596 		1,549 -0.5% 42.35 US$65,596
2026-06-10 2026-06-08
PlS Planned sale
1,549 -0.5%
42.35
US$65,596 		1,549 -0.5% 42.35 US$65,596
2026-06-10 2026-06-08
PlS Planned sale
3,286 -0.9%
41.50
US$136,371 		3,286 -0.9% 41.50 US$136,371
2026-06-08 2026-06-08
PrS Proposed sale
4,835
41.77
US$201,967 		4,835 41.77 US$201,967
2026-06-03 2026-06-03
PrS Proposed sale
6,447
48.94
US$315,548 		6,447 48.94 US$315,548
2026-06-03 2026-06-03
PlS Planned sale
609 -0.2%
50.83
US$30,953 		609 -0.2% 50.83 US$30,953
2026-06-03 2026-06-03
PlS Planned sale
2,638 -0.8%
49.28
US$130,013 		2,638 -0.8% 49.28 US$130,013
2026-06-03 2026-06-03
PlS Planned sale
3,200 -0.9%
48.31
US$154,582 		3,200 -0.9% 48.31 US$154,582
2026-06-03 2026-06-02
PlS Planned sale
600 -0.2%
52.19
US$31,315 		600 -0.2% 52.19 US$31,315
2026-06-03 2026-06-02
PlS Planned sale
12,036 -3.3%
51.47
US$619,445 		12,036 -3.3% 51.47 US$619,445
2026-06-03 2026-06-02
PlS Planned sale
12,122 -3.2%
50.62
US$613,601 		12,122 -3.2% 50.62 US$613,601
2026-06-03 2026-06-02
PlS Planned sale
5,704 -1.5%
49.46
US$282,126 		5,704 -1.5% 49.46 US$282,126
2026-06-02 2026-06-02
PrS Proposed sale
30,462
50.77
US$1,546,486 		30,462 50.77 US$1,546,486
2025-08-06 2025-08-04
S Sale
9,843 -100.0%
55.26
US$543,924 		9,843 -100.0% 55.26 US$543,924
2025-08-06 2025-08-04
S Sale
15,740 -4.3%
55.13
US$867,734 		15,740 -4.3% 55.13 US$867,734
2025-08-06 2025-08-04
S Sale
34,260 -8.5%
54.34
US$1,861,723 		34,260 -8.5% 54.34 US$1,861,723
2025-08-04 2025-08-04
PrS Proposed sale
50,000
54.59
US$2,729,455 		50,000 54.59 US$2,729,455
2025-06-12 2025-06-11
PlS Planned sale
300 -0.1%
29.08
US$8,725 		300 -0.1% 29.08 US$8,725
2025-06-12 2025-06-11
PlS Planned sale
6,342 -1.5%
28.55
US$181,053 		6,342 -1.5% 28.55 US$181,053
2025-06-11 2025-06-11
PrS Proposed sale
6,642
28.57
US$189,779 		6,642 28.57 US$189,779
2025-06-09 2025-06-06
PlS Planned sale
4,744 -1.1%
31.83
US$151,012 		4,744 -1.1% 31.83 US$151,012
2025-06-06 2025-06-06
PrS Proposed sale
4,744
31.83
US$151,012 		4,744 31.83 US$151,012
2025-05-29 2025-05-27
PlS Planned sale
39,903 -8.8%
26.61
US$1,061,735 		39,903 -8.8% 26.61 US$1,061,735
2025-05-29 2025-05-27
PlS Planned sale
10,097 -2.2%
25.55
US$258,022 		10,097 -2.2% 25.55 US$258,022
2025-05-27 2025-05-27
PrS Proposed sale
50,000
26.40
US$1,319,755 		50,000 26.40 US$1,319,755
2025-05-22 2025-05-20
PlS Planned sale
11,860 -2.5%
24.50
US$290,530 		11,860 -2.5% 24.50 US$290,530
2025-05-20 2025-05-20
PrS Proposed sale
11,860
24.50
US$290,528 		11,860 24.50 US$290,528
2024-11-06 2024-11-04
S Sale
50,000 -12.3%
28.28
US$1,414,095 		50,000 -12.3% 28.28 US$1,414,095
2024-11-05 2024-11-04
PrS Proposed sale
50,000
28.28
US$1,414,093 		50,000 28.28 US$1,414,093
2024-06-12 2024-06-11
PlS Planned sale
32,000 -9.2%
21.68
US$693,750 		32,000 -9.2% 21.68 US$693,750
2024-06-11 2024-06-11
PrS Proposed sale
32,000
21.68
US$693,747 		32,000 21.68 US$693,747
2024-05-23 2024-05-21
PlS Planned sale
2,170 -0.6%
15.30
US$33,199 		2,170 -0.6% 15.30 US$33,199
2024-05-23 2024-05-21
PlS Planned sale
26,830 -7.1%
14.78
US$396,614 		26,830 -7.1% 14.78 US$396,614
2024-05-21 2024-05-21
PrS Proposed sale
29,000
14.82
US$429,812 		29,000 14.82 US$429,812
2023-06-23 2023-06-22
PlS Planned sale
29,878 -7.3%
5.95
US$177,816 		29,878 -7.3% 5.95 US$177,816
2023-06-22 2023-06-22
PrS Proposed sale
29,878
5.95
US$177,816 		29,878 5.95 US$177,816
2023-06-23 2023-06-21
PlS Planned sale
50,132 -11.0%
6.15
US$308,532 		50,132 -11.0% 6.15 US$308,532