RBRK.NYSERubrik, INC

Form 4: Rubrik CTO Sells Shares

Sentiment:

Insider Transaction (Form 4)

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Arvind Nithrakashyap, Chief Technology Officer and a Director of Rubrik, Inc., sold 38,460 shares of common stock on September 8, 2026.

Summary

  • Conversion of derivative: acquired 12,820 Class A Common Stock on September 8, 2026; holds 306,113 after (Direct).
  • Open-market sale: disposed of 2,767 Class A Common Stock at $90.43 ($250,220) on September 8, 2026; holds 303,346 after (Direct).
  • Open-market sale: disposed of 7,836 Class A Common Stock at $91.47 ($716,759) on September 8, 2026; holds 295,510 after (Direct).
  • Open-market sale: disposed of 2,217 Class A Common Stock at $91.95 ($203,853) on September 8, 2026; holds 293,293 after (Direct).
  • Conversion of derivative: acquired 12,820 Class A Common Stock on September 9, 2026; holds 306,113 after (Direct).
  • Open-market sale: disposed of 3,243 Class A Common Stock at $89.33 ($289,697) on September 9, 2026; holds 302,870 after (Direct).
  • Open-market sale: disposed of 5,297 Class A Common Stock at $90.41 ($478,902) on September 9, 2026; holds 297,573 after (Direct).
  • Open-market sale: disposed of 3,237 Class A Common Stock at $91.16 ($295,085) on September 9, 2026; holds 294,336 after (Direct).
  • Open-market sale: disposed of 1,013 Class A Common Stock at $92.08 ($93,277) on September 9, 2026; holds 293,323 after (Direct).
  • Open-market sale: disposed of 30 Class A Common Stock at $92.87 ($2,786) on September 9, 2026; holds 293,293 after (Direct).
  • Conversion of derivative: acquired 12,820 Class A Common Stock on September 10, 2026; holds 306,113 after (Direct).
  • Open-market sale: disposed of 369 Class A Common Stock at $87.55 ($32,306) on September 10, 2026; holds 305,744 after (Direct).
  • Open-market sale: disposed of 611 Class A Common Stock at $89.12 ($54,452) on September 10, 2026; holds 305,133 after (Direct).
  • Open-market sale: disposed of 4,844 Class A Common Stock at $89.73 ($434,652) on September 10, 2026; holds 300,289 after (Direct).
  • Open-market sale: disposed of 4,675 Class A Common Stock at $90.88 ($424,864) on September 10, 2026; holds 295,614 after (Direct).
  • Open-market sale: disposed of 2,321 Class A Common Stock at $91.67 ($212,766) on September 10, 2026; holds 293,293 after (Direct).
  • Conversion of derivative: disposed of 12,820 Class B Common Stock on September 8, 2026; holds 10,053,890 after (Direct).
  • Conversion of derivative: disposed of 12,820 Class B Common Stock on September 9, 2026; holds 10,041,070 after (Direct).
  • Conversion of derivative: disposed of 12,820 Class B Common Stock on September 10, 2026; holds 10,028,250 after (Direct).

Sentiment

Score: 4

Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $3,489,619 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.

Insider Transactions

Arvind Nithrakashyap — Director, Officer (Chief Technology Officer)

Transaction made under a Rule 10b5-1 trading plan.

DateTransactionSecuritySharesPriceValueHeld After
2026-09-08Conversion of derivativeClass A Common Stock12,820——306,113
2026-09-08Open-market saleClass A Common Stock2,767$90$250.2K303,346
2026-09-08Open-market saleClass A Common Stock7,836$91$716.8K295,510
2026-09-08Open-market saleClass A Common Stock2,217$92$203.9K293,293
2026-09-09Conversion of derivativeClass A Common Stock12,820——306,113
2026-09-09Open-market saleClass A Common Stock3,243$89$289.7K302,870
2026-09-09Open-market saleClass A Common Stock5,297$90$478.9K297,573
2026-09-09Open-market saleClass A Common Stock3,237$91$295.1K294,336
2026-09-09Open-market saleClass A Common Stock1,013$92$93.3K293,323
2026-09-09Open-market saleClass A Common Stock30$93$2.8K293,293
2026-09-10Conversion of derivativeClass A Common Stock12,820——306,113
2026-09-10Open-market saleClass A Common Stock369$88$32.3K305,744
2026-09-10Open-market saleClass A Common Stock611$89$54.5K305,133
2026-09-10Open-market saleClass A Common Stock4,844$90$434.7K300,289
2026-09-10Open-market saleClass A Common Stock4,675$91$424.9K295,614
2026-09-10Open-market saleClass A Common Stock2,321$92$212.8K293,293
2026-09-08Conversion of derivativeClass B Common Stock12,820——10,053,890
2026-09-09Conversion of derivativeClass B Common Stock12,820——10,041,070
2026-09-10Conversion of derivativeClass B Common Stock12,820——10,028,250

Key Dates

DateDescription
2026-09-08Conversion of derivative (12,820 shares)
2026-09-08Open-market sale (2,767 shares)
2026-09-08Open-market sale (7,836 shares)
2026-09-08Open-market sale (2,217 shares)
2026-09-09Conversion of derivative (12,820 shares)
2026-09-09Open-market sale (3,243 shares)
2026-09-09Open-market sale (5,297 shares)
2026-09-09Open-market sale (3,237 shares)
2026-09-09Open-market sale (1,013 shares)
2026-09-09Open-market sale (30 shares)
2026-09-10Conversion of derivative (12,820 shares)
2026-09-10Open-market sale (369 shares)
2026-09-10Open-market sale (611 shares)
2026-09-10Open-market sale (4,844 shares)
2026-09-10Open-market sale (4,675 shares)
2026-09-10Open-market sale (2,321 shares)
2026-09-08Conversion of derivative (12,820 shares)
2026-09-09Conversion of derivative (12,820 shares)
2026-09-10Conversion of derivative (12,820 shares)

Keywords

insider transaction, Form 4, RBRK, Rubrik, Inc., bearish, Arvind Nithrakashyap

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