MAUREEN HELMER Net Worth - Insider Trades and Bio as of Jun 23, 2026

PLUGPLUG POWER INCSEC CIK: 0001279977

Estimated Net Worth

$4.43 Million55.5%vs Last Year

Last Updated: May 19, 2026 11:13 PM EST

Transaction Summary

Total Transactions107

Buy-Sell Ratio0.14

Buy Transactions1

Sell Transactions7

Transaction Volume

Total Volume-$3.23M

Net Volume$3.29M

Buy Volume$29.45K

Sell Volume-$3.26M

Trade Analysis

AVG Trade Size-$21.23K

Largest Trade$62.50K

Most Active MonthJan

Most Active Year2020

Trading Sentiment

OverallBullish

Recent TradeNeutral

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Maureen O Helmer has an estimated net worth of $4.43 Million. This is based on reported shares in PLUG POWER INC.

2020 was Maureen O Helmer's most active year for acquiring shares with 15 total transactions. Maureen O Helmer's most active month to acquire stocks was the month of May. 2020 was Maureen O Helmer's most active year for disposing of shares, totalling 16 transactions. Maureen O Helmer's most active month to dispose stocks was the month of May. 2020 saw Maureen O Helmer paying a total of $476,519.56 for 247,240 shares, this is the most they've acquired in one year. In 2020 Maureen O Helmer cashed out on 615,639 shares for a total of $3,658,791.82, their largest year based on trade value.

Holdings & Transactions

PLUGplug power inc

Updated: Jan 06, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.04	13.96K	$1.97	$27.50K	Jan 06, 2026	371.57K	Grant	—	Jan 02	View
From 4	0.03	11.80K	$2.33	$27.50K	Oct 03, 2025	357.61K	Grant	—	Oct 01	View
From 4	0.57	153.06K	—	—	Jul 24, 2025	422.33K	Grant	—	Jul 03	View
From 4	0.07	18.46K	$1.49	$27.50K	Jul 03, 2025	269.27K	Grant	—	Jul 01	View
From 4	0.09	20.37K	$1.35	$27.50K	Apr 03, 2025	250.82K	Grant	—	Apr 01	View
From 4	0.06	12.91K	$2.13	$27.50K	Jan 06, 2025	230.45K	Grant	—	Jan 02	View
From 4	0.06	12.17K	$2.26	$27.50K	Oct 03, 2024	217.54K	Grant	—	Oct 01	View
From 4	0.06	11.80K	$2.33	$27.50K	Jul 03, 2024	205.37K	Grant	—	Jul 01	View
From 4	0.48	74.75K	—	—	Jun 07, 2024	230.94K	Grant	—	Jun 05	View
From 4	0.05	7.99K	$3.44	$27.50K	Apr 03, 2024	156.19K	Grant	—	Apr 01	View
From 4	0.02	3.06K	$4.50	$13.75K	Jan 04, 2024	148.20K	Grant	—	Jan 02	View
From 4	0.01	1.81K	$7.60	$13.75K	Oct 04, 2023	145.14K	Grant	—	Oct 02	View
From 4	0.01	1.32K	$10.39	$13.75K	Jul 06, 2023	143.33K	Grant	—	Jul 03	View
From 4	0.19	24.30K	—	—	Jun 29, 2023	154.16K	Grant	—	Jun 27	View
From 4	0.01	1.17K	$11.72	$13.75K	Apr 05, 2023	129.86K	Grant	—	Apr 03	View
From 4	0.01	859.00	$12.37	$10.63K	Jan 05, 2023	128.69K	Grant	—	Jan 03	View
From 4	0.00	506.00	$21.01	$10.63K	Oct 05, 2022	127.83K	Grant	—	Oct 03	View
From 4	0.11	13.58K	—	—	Jul 26, 2022	134.11K	Grant	—	Jun 30	View
From 4	0.01	641.00	$16.57	$10.62K	Jul 15, 2022	120.53K	Grant	—	Jul 01	View
From 4	0.00	371.00	$28.61	$10.61K	Apr 05, 2022	119.89K	Grant	—	Apr 01	View
From 4	0.00	376.00	$28.23	$10.61K	Jan 05, 2022	119.52K	Grant	—	Jan 03	View
From 4	0.00	416.00	$25.54	$10.62K	Oct 05, 2021	119.14K	Grant	—	Oct 01	View
From 4	0.08	8.96K	—	—	Aug 19, 2021	123.21K	Grant	—	Aug 16	View
From 4	0.01	607.00	$34.99	$21.24K	Jul 21, 2021	114.25K	Grant	—	Jul 15	View
From 4	0.00	240.00	—	—	Jan 06, 2021	113.64K	Grant	—	Jan 04	View
From 4	-0.08	10.00K	$30.00	-$300.00K	Dec 21, 2020	113.40K	Sale	Scheduled	Dec 17	View
From 4	-0.11	15.31K	$26.13	-$400.11K	Dec 16, 2020	123.40K	Sale	Scheduled	Dec 14	View
From 4	-0.20	35.00K	$15.00	-$525.00K	Oct 07, 2020	138.71K	Sale	Scheduled	Oct 05	View
From 4	0.00	606.00	—	—	Oct 05, 2020	173.71K	Grant	—	Oct 01	View
From 4	-0.30	75.00K	$13.28	-$996.23K	Sep 22, 2020	173.10K	Sale	Scheduled	Sep 18	View
From 4	0.00	990.00	—	—	Jul 06, 2020	248.10K	Grant	—	Jul 01	View
From 4	-0.38	150.16K	$4.26	-$609.73K	Jun 25, 2020	247.11K	Sale	Scheduled	Jun 23	View
From 4	0.11	25.61K	—	—	Jun 09, 2020	259.92K	Grant	—	Jun 05	View
From 4	-0.33	115.00K	$3.11	-$367.45K	Apr 20, 2020	234.31K	Sale	Scheduled	Apr 16	View
From 4	0.01	2.29K	$3.54	$8.12K	Apr 03, 2020	284.31K	Grant	—	Apr 01	View
From 4	0.01	2.57K	$3.16	$8.12K	Jan 06, 2020	282.01K	Grant	—	Jan 02	View
From 4	0.01	3.09K	$2.63	$8.12K	Oct 03, 2019	279.44K	Grant	—	Oct 01	View
From 4	0.01	3.61K	$2.25	$8.12K	Jul 03, 2019	276.35K	Grant	—	Jul 01	View
From 4	0.22	54.11K	$2.31	$62.50K	Jul 01, 2019	299.80K	Grant	—	May 09	View
From 4	0.01	3.38K	$2.40	$8.12K	Apr 03, 2019	245.68K	Grant	—	Apr 01	View
From 4	0.03	6.55K	$1.24	$8.12K	Jan 04, 2019	242.30K	Grant	—	Jan 02	View
From 4	0.02	4.10K	$1.92	$7.87K	Oct 03, 2018	235.75K	Grant	—	Oct 01	View
From 4	0.02	3.71K	$2.02	$7.50K	Jul 05, 2018	231.65K	Grant	—	Jul 02	View
From 4	0.30	59.24K	$2.11	$62.50K	May 18, 2018	257.56K	Grant	—	May 16	View
From 4	0.02	3.97K	$1.89	$7.50K	Apr 04, 2018	198.32K	Grant	—	Apr 02	View
From 4	0.02	3.18K	$2.36	$7.50K	Jan 04, 2018	194.35K	Grant	—	Jan 02	View
From 4	0.02	2.87K	$2.61	$7.50K	Oct 10, 2017	191.17K	Grant	—	Oct 02	View
From 4	0.02	3.68K	$2.04	$7.50K	Sep 05, 2017	188.30K	Grant	—	Jul 03	View
From 4	0.38	58.69K	$2.13	$62.50K	Jun 30, 2017	213.96K	Grant	—	Jun 28	View
From 4	0.04	5.43K	$1.38	$7.50K	Apr 05, 2017	155.28K	Grant	—	Apr 03	View
From 4	0.04	6.25K	$1.20	$7.50K	Jan 05, 2017	149.84K	Grant	—	Jan 03	View
From 4	0.03	4.39K	$1.71	$7.50K	Oct 18, 2016	143.59K	Grant	—	Oct 03	View
From 4	0.03	4.03K	$1.86	$7.50K	Jul 05, 2016	139.21K	Grant	—	Jul 01	View
From 4	—	30.00K	—	—	May 20, 2016	30.00K	Grant	—	May 18	View
From 4	0.03	3.66K	$2.05	$7.50K	Apr 05, 2016	135.17K	Grant	—	Apr 01	View
From 4	-0.19	30.00K	$1.96	-$58.80K	Mar 28, 2016	131.52K	Sale	—	Mar 24	View
From 4	0.02	3.57K	$2.10	$7.50K	Jan 15, 2016	161.52K	Grant	—	Jan 14	View
From 4	0.03	3.99K	$1.88	$7.50K	Oct 28, 2015	157.94K	Grant	—	Oct 01	View
From 4	0.22	33.19K	$2.35	$7.50K	Jul 17, 2015	183.96K	Grant	—	May 21 - 17	View
From 4	0.02	2.98K	$2.52	$7.50K	Apr 06, 2015	150.76K	Grant	—	Apr 02	View
From 4	0.02	2.52K	$2.98	$7.50K	Feb 13, 2015	147.79K	Grant	—	Jan 02	View
From 4	0.01	1.59K	$4.72	$7.50K	Jul 02, 2014	143.57K	Grant	—	Jul 01	View
From 4	0.01	995.00	$7.54	$7.50K	Apr 04, 2014	141.98K	Grant	—	Apr 01	View
From 4	0.02	3.22K	$2.33	$7.50K	Jan 21, 2014	140.99K	Grant	—	Jan 02	View
From 4	0.08	10.56K	$0.71	$7.50K	Oct 07, 2013	137.77K	Grant	—	Oct 02	View
From 4	0.15	30.83K	$0.36	$7.50K	Jul 05, 2013	235.40K	Grant	—	Jun 28 - 02	View
From 4	0.71	44.12K	$0.17	$7.50K	Apr 03, 2013	106.37K	Grant	—	Apr 01	View
From 4	0.32	15.00K	$0.50	$7.50K	Apr 03, 2013	62.25K	Grant	—	Jan 02	View
From 4	0.24	9.04K	$0.83	$7.50K	Oct 05, 2012	47.25K	Grant	—	Oct 03	View
From 4	0.21	6.58K	$1.14	$7.50K	Jul 06, 2012	38.22K	Grant	—	Jul 02	View
From 4	0.11	10.00K	—	—	May 18, 2012	98.20K	Grant	—	May 16	View
From 4	0.23	5.91K	$1.27	$7.50K	Apr 04, 2012	31.64K	Grant	—	Apr 02	View
From 4	0.17	3.75K	$2.00	$7.50K	Jan 18, 2012	25.73K	Grant	—	Jan 03	View
From 4	0.22	4.03K	$1.73	$6.97K	Oct 05, 2011	21.98K	Grant	—	Oct 03	View
From 4	2.80	65.00K	—	—	Sep 30, 2011	88.20K	Grant	—	Sep 20	View
From 4	0.21	3.07K	$2.24	$6.87K	Aug 04, 2011	17.95K	Grant	—	Aug 02	View
From 4	0.05	12.00K	—	—	May 16, 2011	232.00K	Grant	—	May 12	View
From 4	0.06	9.05K	$0.76	$6.87K	Apr 06, 2011	148.84K	Grant	—	Apr 04	View
From 4/A	0.06	4.95K	—	—	Apr 06, 2011	88.17K	Grant	—	Apr 06	View
From 4	0.15	17.63K	$0.39	$6.87K	Jan 10, 2011	134.85K	Grant	—	Jan 07	View
From 4	0.18	17.63K	—	—	Oct 06, 2010	117.22K	Grant	—	Oct 04	View
From 4	0.20	16.37K	—	—	Jul 20, 2010	99.59K	Grant	—	Jul 06	View
From 4	0.06	12.00K	—	—	May 21, 2010	220.00K	Grant	—	May 19	View
From 4	0.14	10.42K	—	—	Apr 06, 2010	83.22K	Grant	—	Apr 02	View
From 4	0.16	9.82K	—	—	Jan 07, 2010	72.80K	Grant	—	Jan 05	View
From 4	0.15	7.99K	—	—	Oct 05, 2009	62.98K	Grant	—	Oct 02	View
From 4	0.18	8.49K	—	—	Jul 07, 2009	54.99K	Grant	—	Jul 02	View
From 4	1.93	137.00K	—	—	May 22, 2009	208.00K	Grant	—	May 20	View
From 4	0.21	7.99K	—	—	Apr 03, 2009	46.50K	Grant	—	Apr 02	View
From 4	0.21	6.61K	—	—	Jan 07, 2009	38.51K	Grant	—	Jan 02	View
From 4	0.26	6.61K	—	—	Oct 06, 2008	31.90K	Grant	—	Oct 02	View
From 4	0.13	2.85K	—	—	Jul 03, 2008	25.28K	Grant	—	Jul 02	View
From 4	0.20	15.50K	$3.30	$11.55K	May 22, 2008	93.43K	Grant	—	May 21	View
From 4	0.13	2.13K	—	—	Apr 07, 2008	18.93K	Grant	—	Apr 03	View
From 4	0.11	1.70K	—	—	Jan 07, 2008	16.80K	Grant	—	Jan 03	View
From 4	0.11	1.60K	—	—	Oct 23, 2007	16.69K	Grant	—	May 16	View
From 4	0.17	2.23K	—	—	Oct 05, 2007	15.09K	Grant	—	Oct 04	View
From 4	0.26	12.00K	—	—	Oct 03, 2007	59.00K	Grant	—	May 17	View
From 4	0.20	2.16K	—	—	Jul 05, 2007	12.86K	Grant	—	Jul 02	View
From 4	0.26	2.18K	—	—	Apr 16, 2007	10.70K	Grant	—	Apr 03	View
From 4	0.27	1.83K	—	—	Jan 11, 2007	8.52K	Grant	—	Jan 08	View
From 4	0.35	1.74K	—	—	Oct 04, 2006	6.69K	Grant	—	Oct 02	View
From 4	0.34	12.00K	$4.64	$55.68K	Jun 30, 2006	47.00K	Grant	—	Jun 28	View
From 4	—	4.95K	$5.95	$29.45K	Feb 06, 2006	4.95K	Purchase	—	Feb 01	View
From 4	0.40	10.00K	$6.22	$62.20K	Jun 03, 2005	35.00K	Acquisition	—	Jun 01	View
From 4	0.67	10.00K	$7.50	—	May 24, 2004	25.00K	Acquisition	—	May 20	View
From 3	—	—	—	—	Feb 17, 2004	—	—	—	—	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions