Retail traders call Rubrik the hedge against AI; insiders logged 125 sales in 126 trades
Memory-chip money rotating into cybersecurity meets its test this month as Rubrik's MCP agent gateway targets general availability. What the new buyers hold: a 149x forward multiple, three straight quarters of shrinking net-new cloud ARR, and a register where the founder capped his own upside at $165.58.
Vincent Jiang · 3 min read
A memory-chip trader moved his whole DRAM position into Rubrik at about $80, posting on 3 October that cybersecurity is "a hedge against AI" and that he is up roughly half his money 1. His timing is the story. The MCP gateway that lets a company's own AI agents into Rubrik's security cloud has sat in private preview since 15 September, with general availability targeted for October 2, and today, 4 October, is the date on the launch calendar 3. No source yet confirms it switched on.
The bid is fear. Rubrik jumped more than 15 percent on 14 September after Anthropic's chief executive warned AI systems could escape human control, pushing three cofounders into the billionaire ranks 3. The stock has since printed an all-time high of $116.16 4 against a 52-week low of $42.25, a $23.6 billion market cap 5.
The register's other leg is selling
What the new money buys, the old money is leaving on schedule. Founder-CEO Bipul Sinha's vehicle took $42,051,350 upfront from Goldman Sachs against 500,000 pledged shares, floored at $93.14 and capped at $165.58, with no trading plan 3. Of 126 insider trades in six months, 125 were sales; CTO Arvind Nithrakashyap, front man of the MCP launch 2, is estimated at $28.7 million 3. Director John Thompson sold 13,500 shares for about $1.6 million on 1 October at $114.18 to $116.97, under a plan adopted a year earlier 6. The flow is sector-wide: SailPoint insiders sold $44.4 million over twelve months and bought nothing 7; SentinelOne insiders sold about $12 million 8. Retail is buying the undo button; the people who built it keep pressing it.
The number under the multiple
The bull case is real: subscription ARR of $1.66 billion, up 33 percent, with full-year guidance raised to $1.88 billion 5. The price is 149.1 times forward earnings and roughly 72 times guided free cash flow 5, for a company that lost $61.8 million on $427.3 million of July-quarter revenue, up 37.9 percent 59. And the company's own deck shows adjusted net-new cloud ARR, migrations stripped out, falling three straight quarters 5.
Revenue has doubled in two years; every quarter is still a loss
- Revenue
- Net income
Data
| Revenue | Net income | |
|---|---|---|
| Q2 '24 | $204.95M | -$176.93M |
| Q3 '24 | $236.18M | -$130.91M |
| Q4 '24 | $258.1M | -$114.89M |
| Q1 '25 | $278.48M | -$102.1M |
| Q2 '25 | $309.86M | -$95.93M |
| Q3 '25 | $350.17M | -$63.83M |
| Q4 '25 | $377.68M | -$86.97M |
| Q1 '26 | $387.07M | -$41.85M |
| Q2 '26 | $427.26M | -$61.78M |
Net-new cloud ARR has fallen three straight quarters
Data
| Adjusted net-new cloud ARR | |
|---|---|
| qtr to Jan '26 | $110M |
| qtr to Apr '26 | $99M |
| qtr to Jul '26 | $86M |
Most of the selling was scheduled long before the fear trade
Most of the selling is mechanical: Thompson's plan dates to October 2025, before the fear trade 6. Sinha keeps about 11.2 million shares and can cash-settle the collar to take the pledged stock back 3. KeyBanc's Sector Weight on SailPoint argues valuation, not doom, for the agent-security trade 7.
Two prints decide it from here
Watch two prints. Whether net-new cloud ARR turns up from $86 million in the next report decides whether the multiple is a belief system or a number 5. Then Sinha's cash-settlement election on the collar, whenever it comes: the founder's own vote on the fear trade 3.
Deepdive
AI-generated from this story and its cited sources. Not investment advice.
