8-K ·Filed Sep 23, 2026
8-K context-dependent: Items 5.02
Actionable Insight • Neutral
Monitor for any subsequent executive hires or organizational changes that could signal operational disruption. The COO departure is orderly with a transition plan, but the lack of a named successor adds mild uncertainty.
Latest settled — T+20d
PLUG ▼ -29.59% at T+20d
NEUTRAL call -29.59% · α vs SPY -29.17% · entry $1.96 → $1.38
Latest observation: T+21 -20.12% FF3 residual α
T+1d
+1.02%
call +1.02% · α +0.48%
$1.98
settled 5w ago
T+5d
-3.57%
call -3.57% · α -3.16%
$1.89
settled 26d ago
T+20d
-29.59%
call -29.59% · α -29.17%
$1.38
settled 5d ago
T+60d
Pending
in 7w
Price Chart
Loading chart...
Executive Summary
Plug Power's COO Dean C. Fullerton resigned effective October 23, 2026 to join another company. The departure is voluntary and not due to any disagreement with the company. No replacement has been named; duties will be transitioned to existing EVPs and VPs.
Key Facts
- COO Dean C. Fullerton notified resignation on September 17, 2026, effective October 23, 2026
- Resignation is to accept a position at another company, not due to any disagreement with Plug Power
- No replacement named; duties transitioned to Executive Vice Presidents and Vice Presidents
Financial Impact
No financial impact disclosed in the filing
Risk Factors
- Potential operational disruption if transition to EVPs/VPs is not smooth
- Possible further executive departures if this signals broader management instability
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 8-K Filing (Primary) | 0001104659-26-110021 |
| Document: 0001104659-26-110021-index-headers.html | 0001104659-26-110021 |
| Document: 0001104659-26-110021-index.html | 0001104659-26-110021 |
| Document: 0001104659-26-110021.txt | 0001104659-26-110021 |
15 reports for PLUG
63% Hit rate @ T+1 Went positive at some point 7 of 8 best @ T+60▲ +87.67%
Filters
Rows
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 15, 2026 11d ago | 8-K | $1.49 $1.38 | ▼ −7.07% | ▼ −5.96% | $1.37 (−7.74%) |
Oct 15, 2026 11d ago | Press Release | $1.49 $1.38 | ▼ −7.07% | ▼ −5.96% | $1.37 (−7.74%) |
Sep 23, 2026 4w ago | 8-K | $1.96 $1.98 | ▲ +1.02% | ▲ +0.48% | $1.37 (−30.10%) |
Aug 11, 2026 10w ago | Court Ruling | $2.29 $2.30 | ▲ +0.44% | ▼ −0.26% | $1.37 (−40.17%) |
Aug 10, 2026 11w ago | 8-K | $2.22 $2.29 | ▲ +3.15% | ▲ +2.90% | $1.37 (−38.29%) |
Jul 24, 2026 13w ago | Court Ruling | $2.06 $1.96 | ▼ −4.85% | ▼ −5.09% | $1.37 (−33.50%) |
Jul 13, 2026 15w ago | 8-K | $2.17 $2.27 | ▼ −4.61% | ▼ −4.25% | $1.37 (+36.87%) |
Jul 13, 2026 15w ago | Press Release | $2.17 $2.27 | ▲ +4.61% | ▲ +4.25% | $1.37 (−36.87%) |
Jul 7, 2026 15w ago | Press Release | $2.48 $2.46 | ▼ −0.81% | ▼ −0.50% | $1.37 (−44.76%) |
Jun 4, 2026 20w ago | DEFA14A | $3.22 $3.19 | ▲ +0.78% | ▲ +1.00% | $1.37 (+57.39%) |
Showing 10 of 15
US Market Status
Market Closed — Opens Tue (< 1m)
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers