Form4insider filings, from the source

Company · CIK 0001515156 · SIC 2890 — Miscellaneous Chemical Products · Nasdaq

Arq, Inc. · ARQ

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

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $56k · 3sales $0 · 0net $56k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 8, 2026 PForm 4 →Sep 10, 5:33 pm EDTShimon SteinmetzChief Financial Officer2,972$2.34$6,95315,000+24.7%
Sep 4, 2026 PForm 4 →Sep 9, 5:32 pm EDTShimon SteinmetzChief Financial Officer5,758$2.28$13,11313,126+78.1%
Sep 3, 2026 PForm 4 →Sep 8, 5:32 pm EDTShimon SteinmetzChief Financial Officer16,270$2.22$36,1488,770—
Sep 1, 2026 AForm 4 →Sep 3, 5:32 pm EDTPeter Oluoch OwinoChief Accounting Officer161,047——161,047—

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 AForm 4 →Sep 3, 5:32 pm EDTPeter Oluoch OwinoChief Accounting Officer61,047——61,047—