Form4insider filings, from the source

Insider · CIK 0001674063

D Patrick Wischmeier

Files at: GRC. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $400k · 1net −$400k
$10k$10k$100k$100k$1M$1MbuyssalesJun 27Jul 12Jul 27Aug 12Aug 27Sep 12Sep 27

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 26, 2026 SForm 4 →Aug 28, 1:51 pm EDTGORMAN RUPP COGRC5,153$77.62$399,9761,409−78.5%

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.