GWH
PCG

NIGGLI MICHAEL R

Known title: DirectorCIK: 0001377160

NIGGLI MICHAEL R's purchase track record

How the stock did after each of NIGGLI MICHAEL R's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.

Purchases measured
4
of 4 since March 1, 2022
Stock higher 6 months later
50%
3 months: 25%
Median 6-month return
-9.8%
3 months: -17.0%
Beat the S&P 500
0%
median -11.6% vs. index
PurchaseStockAmount3 months6 months
5/12/2023GWH$31K+24.8%+1.8%
3/6/2023GWH$8K-16.6%+1.9%
12/15/2022GWH$49K-56.7%-42.1%
3/1/2022GWH$100K-17.4%-21.4%

Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.

Associated companies

AI Market Commentary

AI-generatedAll commentary →

Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

October 1, 2026

ESS Tech (GWH) Featured in Weekly Industrials Movers Lists. ESS Tech (GWH) appeared in multiple recent lists of notable movers within the industrials sector. These reports highlight the stock's recent price activity and gaps during trading sessions. The company remains a subject of interest in market tracking tools, reflecting its role in the broader industrial market movements this week.

this person other insiders at GWH

AI Market Commentary

AI-generatedAll commentary →

Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

October 17, 2026

PG&E Faces Q3 Earnings Report and Expanded Power Shutoff. PG&E will release its third‑quarter earnings next week, with analysts expecting a decline. The company has urged customers to prepare for a public‑safety power shutoff that now covers 88,000 customers across 29 counties due to a change in the fire‑weather forecast. These events may influence short‑term trading as the company balances financial performance with safety operations.

this person other insiders at PCG

Transaction History

GWH▲ Buy$0
GWH▲ Buy$82K
PCG▲ Buy$0
GWH▲ Buy$0
PCG▲ Buy$0
GWH▲ Buy$0
GWH▲ Buy$8K
GWH▲ Buy$23K
GWH▲ Buy$8K
GWH▲ Buy$49K
GWH▲ Buy$0
PCG▲ Buy$0
GWH▲ Buy$100K
GWH▲ Buy$0
GWH▼ Sell$117K
GWH▼ Sell$658K
GWH▼ Sell$311K
GWH▼ Sell$117K
GWH▼ Sell$117K
GWH▼ Sell$117K
GWH▼ Sell$778K

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