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Total declarations
Company
▲ Purchases (2 ops.)
▼ Sales (26 ops.)
Latest filing published 11 Jun 2026 for AMERICAN SUPERCONDUCTOR CORP /DE/.
Filing timeline
BuySaleJohn W. Kosiba Jr.
Insider track record
Disclosed buys
2
Disclosed sells
26
Signal history
Closed purchases
Market purchases
2
Not enough history yet: 0 closed purchases, at least 2 are needed.
Purchases by company
John W. Kosiba Jr.: trading record in brief
John W. Kosiba Jr. is a declared insider of American Superconductor Corp /DE/ (finance chief), with filings sourced from SEC (Form 4). Over a trading history stretching from 20 May 2021 to 11 June 2026, the count stands at 36 filings.
On the open market, the record shows 2 purchases worth €129k and 26 sales worth €8.0M. The totals exclude 4 filings filed without an amount. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. The rest of the record consists of 7 share grants. In 2026 alone, the filings show no purchases and 11 sales.
The record was last updated on 11 June 2026 with an open-market sale in American Superconductor Corp /DE/. The last insider purchase was made public on 19 December 2022, 1,405 days ago. Typically, a trade is published a median of 2 days after it takes place. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to John W. Kosiba Jr.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations36 total
5,026 sharesCommon StockSEC:0001193125-26-267677:0
1,743 sharesCommon StockSEC:0001193125-26-267677:1
1,549 sharesCommon StockSEC:0001193125-26-265996:1
3,286 sharesCommon StockSEC:0001193125-26-265996:0
12,036 shares@ US$51.4667.1% of flowCommon StockSEC:0001193125-26-255471:3
2,638 shares@ US$49.28461.5% of flowCommon StockSEC:0001193125-26-255471:6
30,000 shares0Common StockSEC:0001193125-26-255471:0
5,704 shares@ US$49.4613.2% of flowCommon StockSEC:0001193125-26-255471:1
12,122 shares@ US$50.61887.0% of flowCommon StockSEC:0001193125-26-255471:2
600 shares@ US$52.19170.4% of flowCommon StockSEC:0001193125-26-255471:4
3,200 shares@ US$48.30691.8% of flowCommon StockSEC:0001193125-26-255471:5
609 shares@ US$50.82580.4% of flowCommon StockSEC:0001193125-26-255471:7
34,260 shares@ US$54.34121.4% of flowCommon StockSEC:0000950170-25-104131:0
6,342 shares@ US$28.54832.1% of flowCommon StockSEC:0000950170-25-085408:0
4,744 shares@ US$31.83230.0096% mcap17.4% of flowCommon StockSEC:0000950170-25-083826:0
10,097 shares@ US$25.55433.0% of flowCommon StockSEC:0000950170-25-079157:0
39,903 shares@ US$26.607912.5% of flowCommon StockSEC:0000950170-25-079157:1
11,860 shares@ US$24.49663.4% of flowCommon StockSEC:0000950170-25-076416:0
120,000 shares0Common StockSEC:0000950170-25-074461:0
50,000 shares@ US$28.281917.3% of flowCommon StockSEC:0000950170-24-122413:0
90,000 shares0Common StockSEC:0000950170-24-110427:0
32,000 shares@ US$21.67978.6% of flowCommon StockSEC:0000950170-24-072272:0
26,830 shares@ US$14.78254.9% of flowCommon StockSEC:0000950170-24-063992:0
50,132 shares@ US$6.15443.7% of flowCommon StockSEC:0001209191-23-039350:0
1,613 shares0Common StockSEC:0001209191-23-038394:1
25 of 36 declarations
