Form4insider filings, from the source

Company · CIK 0000081362 · SIC 2990 — Miscellaneous Products of Petroleum & Coal · NYSE

QUAKER CHEMICAL CORP · KWR

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $101k · 1net −$101k
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 20, 2026 JForm 4 →Aug 24, 5:42 pm EDTGulf Hungary Holding Korlatolt Felelossegu Tarsasag10% Owner5,017$169.29$849,3283,639,017—
Aug 7, 2026 JForm 4 →Aug 11, 4:54 pm EDTJeewat BijlaniEVP, Glob. Spec. & CGO7$153.20$1,0726,741—
Aug 4, 2026 SForm 4 →Aug 6, 4:14 pm EDTWilliam H OsborneDirector600$168.31$100,986616−49.3%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.