Latest filing published 10 Jun 2026 for PLUG POWER INC, €140k.
Filing timeline
BuySaleInsider track record
Closed purchases
Not enough history yet: 1 closed purchase, at least 2 are needed.
Purchases by company
Since each purchase
- -29.2%Entry US$53.40 · Close at T+365 US$37.80
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Maureen O. Helmer: trading record in brief
This profile gathers the share dealings of Maureen O. Helmer in Plug Power Inc, where the filings describe the role as board member. Between 1 February 2006 and 8 June 2026, the trades on record add up to 110 filings.
Both buying and selling appear: 1 purchase worth €24k, against 9 sales worth €3.3M. Taken together, the sales exceed the purchases by €3.3M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The rest of the record consists of 89 share grants and 9 option exercises. In 2026 alone, the filings show no purchases and 1 sale.
On 10 June 2026 came the latest disclosure, an open-market sale for €140k in Plug Power Inc. The latest purchase dates back some time: it was published 7,580 days ago, on 6 February 2006. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. 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. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Companies and markets linked to Maureen O. Helmer
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 50,000 shares@ US$3.232430.7% of flowCommon StockSEC:0001104659-26-072322:0
- 13,959 shares@ US$1.9750.0% of flowCommon StockSEC:0001104659-26-001512:0
- 11,803 shares@ US$2.3350.0% of flowCommon StockSEC:0001104659-25-096693:0
- 76,531 shares0Common StockSEC:0001104659-25-070384:0
- 18,456 shares@ US$1.498.6% of flowCommon StockSEC:0001104659-25-065804:0
- 20,370 shares@ US$1.359.4% of flowCommon StockSEC:0001104659-25-031665:0
- 12,911 shares@ US$2.139.8% of flowCommon StockSEC:0001104659-25-001293:0
- 12,168 shares@ US$2.269.2% of flowCommon StockSEC:0001104659-24-105830:0
- 11,803 shares@ US$2.339.5% of flowCommon StockSEC:0001104659-24-077780:0
- 37,375 shares0Common StockSEC:0001104659-24-069680:0
- 7,994 shares@ US$3.449.5% of flowCommon StockSEC:0001104659-24-043220:0
- 3,056 shares@ US$4.504.6% of flowCommon StockSEC:0001104659-24-001339:0
- 1,809 shares@ US$7.604.9% of flowCommon StockSEC:0001104659-23-106826:0
- 1,323 shares@ US$10.394.7% of flowCommon StockSEC:0001104659-23-078823:0
- 12,149 shares0Common StockSEC:0001104659-23-076295:0
- 1,173 shares@ US$11.724.7% of flowCommon StockSEC:0001104659-23-042143:0
- 859 shares@ US$12.373.7% of flowCommon StockSEC:0001104659-23-001387:0
- 506 shares@ US$21.014.0% of flowCommon StockSEC:0001104659-22-106326:0
- 6,789 shares0Common StockSEC:0001104659-22-082777:0
- 641 shares@ US$16.573.8% of flowCommon StockSEC:0001104659-22-080197:0
- 371 shares@ US$28.613.5% of flowCommon StockSEC:0001104659-22-042731:0
- 376 shares@ US$28.233.5% of flowCommon StockSEC:0001104659-22-001490:0
- 416 shares@ US$25.543.4% of flowCommon StockSEC:0001104659-21-123062:0
- 4,482 shares0Common StockSEC:0001104659-21-107837:0
- 311 shares@ US$34.19Common StockSEC:0001104659-21-094577:1
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