Form4insider filings, from the source

Insider · CIK 0002019143

Arvind Nithrakashyap

Files at: RBRK. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $3.5M · 1net −$3.5M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 27Sep 1Sep 6Sep 11Sep 17Sep 22Sep 27

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 15, 2026 FForm 4 →Sep 17, 9:15 pm EDTRubrik, Inc.RBRK10,436$100.20$1,045,687282,857—
Sep 8, 2026 SForm 4 →Sep 10, 8:46 pm EDTRubrik, Inc.RBRK38,460$90.73$3,489,619293,293−11.6%10b5-1
Sep 8, 2026 CForm 4 →Sep 10, 8:46 pm EDTRubrik, Inc.RBRK38,460——306,113—10b5-1

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 8, 2026 CForm 4 →Sep 10, 8:46 pm EDTRubrik, Inc.RBRK38,460——10,028,250—10b5-1