Form4insider filings, from the source

Company · CIK 0001816581 · SIC 3569 — General Industrial Machinery & Equipment, NEC · Nasdaq

Ouster, Inc. · OUST

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

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $3.3M · 6net −$3.3M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 SForm 4 →Sep 16, 7:13 pm EDTMegan ChungGeneral Counsel and Secretary11,484$33.96$389,993189,291−5.72%10b5-1
Sep 14, 2026 SForm 4 →Sep 16, 7:08 pm EDTDarien SpencerChief Operating Officer12,808$33.96$434,953286,999−4.27%10b5-1
Sep 14, 2026 SForm 4 →Sep 16, 7:01 pm EDTCharles Angus PacalaPresident and CEO, Director30,385$33.96$1,031,8471,041,816−2.83%10b5-1
Sep 14, 2026 SForm 4 →Sep 16, 7:00 pm EDTCyrille JacquemetChief Revenue Officer8,896$33.96$302,093105,539−7.77%
Sep 14, 2026 SForm 4 →Sep 16, 6:52 pm EDTKenneth P. GianellaChief Financial Officer15,686$33.96$532,682245,328−6.01%10b5-1
Sep 14, 2026 SForm 4 →Sep 16, 6:51 pm EDTMark FrichtlChief Technology Officer18,778$33.96$637,691318,987−5.56%10b5-1
Sep 9, 2026 GForm 4 →Sep 10, 7:05 pm EDTMegan ChungGeneral Counsel and Secretary2,084——200,775—
Sep 2, 2026 GForm 4 →Sep 4, 6:00 pm EDTMark FrichtlChief Technology Officer38,745——337,765—

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

No reported derivative activity in this period.