PLUG

insider transactions

PLUG POWER INC — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 90d

-50.0K

0 buy · 50.0K sell

Net value · 90d

-$161.6K

$0 in · $161.6K out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 50.0K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Grant·A
Jun 11, 26

Gary K Willis

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

Gary K Willis

Director

$0

39.8K sh

Own +6%
Grant·A
Jun 11, 26

George C Mcnamee

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

George C Mcnamee

Director

$0

39.8K sh

Own +5%
Grant·A
Jun 11, 26

Gregory Kenausis

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

Gregory Kenausis

Director

$0

39.8K sh

Own +8%
Grant·A
Jun 11, 26

Patrick Joggerst

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

Patrick Joggerst

Director

$0

39.8K sh

Own +19%
Grant·A
Jun 11, 26

Maureen O Helmer

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

Maureen O Helmer

Director

$0

39.8K sh

Own +12%
Grant·A
Jun 11, 26

Mark J Bonney

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

Mark J Bonney

Director

$0

39.8K sh

Own +18%
Grant·A
Jun 11, 26

Colin M Angle

Director

$0

39.8K sh

Own New
Grant·A
Jun 11, 26

Colin M Angle

Director

$0

39.8K sh

Own +36%
Sell·S
Jun 8, 26

Maureen O Helmer

Director · 10b5-1

$161.6K

50.0K sh · $3.23

Own -13%
Grant·A
Apr 1, 26

Andrew Marsh

Director

$8.3K

3.7K sh · $2.26

Own +0%
Grant·A
Apr 1, 26

Kavita Mahtani

Director

$22.5K

10.0K sh · $2.26

Own +4%
Grant·A
Apr 1, 26

Gregory Kenausis

Director

$19.7K

8.7K sh · $2.26

Own +2%
Grant·A
Apr 1, 26

Patrick Joggerst

Director

$20.0K

8.8K sh · $2.26

Own +4%
Grant·A
Apr 1, 26

Mark J Bonney

Director

$23.8K

10.5K sh · $2.26

Own +5%
Grant·A
Apr 1, 26

Colin M Angle

Director

$8.8K

3.9K sh · $2.26

Own +4%
Grant·A
Mar 31, 26

Andrew Marsh

Director

$0

87.3K sh

Own New

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 11, 2026	Gary K Willis	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	Gary K Willis	Director	Grant A	39.8K	+6%	—	$0
Jun 11, 2026	George C Mcnamee	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	George C Mcnamee	Director	Grant A	39.8K	+5%	—	$0
Jun 11, 2026	Gregory Kenausis	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	Gregory Kenausis	Director	Grant A	39.8K	+8%	—	$0
Jun 11, 2026	Patrick Joggerst	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	Patrick Joggerst	Director	Grant A	39.8K	+19%	—	$0
Jun 11, 2026	Maureen O Helmer	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	Maureen O Helmer	Director	Grant A	39.8K	+12%	—	$0
Jun 11, 2026	Mark J Bonney	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	Mark J Bonney	Director	Grant A	39.8K	+18%	—	$0
Jun 11, 2026	Colin M Angle	Director	Grant A	39.8K	New	—	$0
Jun 11, 2026	Colin M Angle	Director	Grant A	39.8K	+36%	—	$0
Jun 8, 2026	Maureen O Helmer 10b5-1	Director	Sell S	50.0K	-13%	$3.23	$161.6K
Apr 1, 2026	Andrew Marsh	Director	Grant A	3.7K	+0%	$2.26	$8.3K
Apr 1, 2026	Kavita Mahtani	Director	Grant A	10.0K	+4%	$2.26	$22.5K
Apr 1, 2026	Gregory Kenausis	Director	Grant A	8.7K	+2%	$2.26	$19.7K
Apr 1, 2026	Patrick Joggerst	Director	Grant A	8.8K	+4%	$2.26	$20.0K
Apr 1, 2026	Mark J Bonney	Director	Grant A	10.5K	+5%	$2.26	$23.8K
Apr 1, 2026	Colin M Angle	Director	Grant A	3.9K	+4%	$2.26	$8.8K
Mar 31, 2026	Andrew Marsh	Director	Grant A	87.3K	New	—	$0

About PLUG insider trading

This page tracks insider transactions for PLUG POWER INC (PLUG) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.