Helmer Maureen O has been a registered insider since 2003.
As a Director at Plug Power, Inc., Helmer Maureen O last made a transaction on 6/8/2026.
InsiderInsights.com Purchase Scorecard
|
|
|
Transaction Date
|
|
Nq |
Hit
Rate
|
Mean
Return
|
Median
Return
|
Range of
Returns
|
Time From
Purchases
|
Nq |
Hit
Rate
|
Mean
Return
|
Median
Return
|
Range of
Returns
|
| 1 |
0% |
-30% |
-- |
-- |
1 Year |
1 |
0% |
-- |
-- |
-- |
| 1 |
0% |
-27% |
-- |
-- |
9 Month |
1 |
0% |
-- |
-- |
-- |
| 1 |
0% |
-26% |
-- |
-- |
6 Month |
1 |
0% |
-- |
-- |
-- |
| 1 |
100% |
16% |
-- |
-- |
3 Month |
1 |
0% |
-- |
-- |
-- |
| 1 |
0% |
-12% |
-- |
-- |
1 Month |
1 |
0% |
-- |
-- |
-- |
| 1 |
0% |
-2% |
-- |
-- |
1 Week |
1 |
0% |
-- |
-- |
-- |
InsiderInsights.com Sales Scorecard
|
|
|
Transaction Date
|
|
Nq |
Hit
Rate
|
Mean
Return
|
Median
Return
|
Range of
Returns
|
Time From
Sales
|
Nq |
Hit
Rate
|
Mean
Return
|
Median
Return
|
Range of
Returns
|
| 7 |
29% |
132% |
43% |
497 |
1 Year |
7 |
0% |
-- |
-- |
-- |
| 7 |
43% |
255% |
66% |
1,297 |
9 Month |
7 |
0% |
-- |
-- |
-- |
| 7 |
29% |
128% |
75% |
402 |
6 Month |
7 |
0% |
-- |
-- |
-- |
| 7 |
14% |
65% |
53% |
194 |
3 Month |
7 |
0% |
-- |
-- |
-- |
| 7 |
14% |
34% |
16% |
116 |
1 Month |
7 |
0% |
-- |
-- |
-- |
| 8 |
25% |
6% |
2% |
34 |
1 Week |
8 |
0% |
-- |
-- |
-- |
| Scorecards Updated 6/19/2026 11:43 PM EST |
Latest Transaction Date: |
6/8/2026 |
| Average days between Transaction and Entered Dates: |
4 |
