HELMER MAUREEN O - Insider Non-Derivative Transactions at PLUG POWER INC (PLUG) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Oct 1, 2025, HELMER MAUREEN O's relationship to PLUG POWER INC (PLUG) is Director, and currently has 357,606 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other PLUG insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

HELMER MAUREEN O - Insider Non-Derivative Transactions of PLUG Common Stock

HELMER MAUREEN O - Insider Non-Derivative Transactions at PLUG

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Oct 2, 2025	Acquisition -- (Common Stock)	11803	2.33	357606
Jul 4, 2025	Acquisition -- (Common Stock)	76531	0	345803
Jul 2, 2025	Acquisition -- (Common Stock)	18456	1.49	269272
Apr 2, 2025	Acquisition -- (Common Stock)	20370	1.35	250816
Jan 3, 2025	Acquisition -- (Common Stock)	12911	2.13	230446
Oct 2, 2024	Acquisition -- (Common Stock)	12168	2.26	217535
Jul 2, 2024	Acquisition -- (Common Stock)	11803	2.33	205367
Jun 6, 2024	Acquisition -- (Common Stock)	37375	0	193564
Apr 2, 2024	Acquisition -- (Common Stock)	7994	3.44	156189
Jan 3, 2024	Acquisition -- (Common Stock)	3056	4.5	148195
Oct 3, 2023	Acquisition -- (Common Stock)	1809	7.6	145139
Jul 4, 2023	Acquisition -- (Common Stock)	1323	10.39	143330
Jun 28, 2023	Acquisition -- (Common Stock)	12149	0	142007
Apr 4, 2023	Acquisition -- (Common Stock)	1173	11.72	129858
Jan 4, 2023	Acquisition -- (Common Stock)	859	12.37	128685