Form4insider filings, from the source

Company · CIK 0001943896 · SIC 7372 — Services-Prepackaged Software · NYSE

Rubrik, Inc. · RBRK

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

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $5.8M · 4net −$5.8M
$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 24, 2026 CGForm 4 →Sep 25, 8:41 pm EDTBipul SinhaChairman of the Board and CEO, Director, 10% Owner610,000——56,652—
Sep 15, 2026 FForm 4 →Sep 17, 9:15 pm EDTArvind NithrakashyapChief Technology Officer, Director10,436$100.20$1,045,687282,857—
Sep 15, 2026 SForm 4 →Sep 17, 9:14 pm EDTKiran Kumar ChoudaryChief Financial Officer10,000$104.81$1,048,108958,078−1.03%10b5-1
Sep 15, 2026 CFForm 4 →Sep 17, 9:14 pm EDTKiran Kumar ChoudaryChief Financial Officer17,995$100.20$1,402,299964,078—10b5-1
Sep 8, 2026 SForm 4 →Sep 10, 8:46 pm EDTArvind NithrakashyapChief Technology Officer, Director38,460$90.73$3,489,619293,293−11.6%10b5-1
Sep 8, 2026 CForm 4 →Sep 10, 8:46 pm EDTArvind NithrakashyapChief Technology Officer, Director38,460——306,113—10b5-1
Sep 3, 2026 SForm 4 →Sep 3, 9:05 pm EDTYvonne WassenaarDirector721$89.52$64,5443,709−16.3%10b5-1
Sep 3, 2026 CForm 4 →Sep 3, 9:05 pm EDTYvonne WassenaarDirector513——4,430—10b5-1
Sep 1, 2026 CForm 4 →Sep 3, 8:22 pm EDTJohn Wendell ThompsonDirector11,000——19,362—10b5-1
Sep 1, 2026 SForm 4 →Sep 3, 8:22 pm EDTJohn Wendell ThompsonDirector13,500$89.03$1,201,9468,362−61.8%10b5-1

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 24, 2026 CJForm 4 →Sep 25, 8:41 pm EDTBipul SinhaChairman of the Board and CEO, Director, 10% Owner1,055,000——500,000—
Sep 15, 2026 CMForm 4 →Sep 17, 9:14 pm EDTKiran Kumar ChoudaryChief Financial Officer12,000——0—10b5-1
Sep 8, 2026 CForm 4 →Sep 10, 8:46 pm EDTArvind NithrakashyapChief Technology Officer, Director38,460——10,028,250—10b5-1
Sep 3, 2026 CForm 4 →Sep 3, 9:05 pm EDTYvonne WassenaarDirector513——32,603—10b5-1
Sep 1, 2026 CMForm 4 →Sep 3, 8:22 pm EDTJohn Wendell ThompsonDirector33,000——50,001—10b5-1