RBRK at a glance
Rubrik Inc (RBRK, SEC CIK 1943896) filed its latest 10-K annual report on March 19, 2026, a 10-Q quarterly report on September 1, 2026, an 8-K current report on August 27, 2026 and Form 4 insider filings as recently as October 6, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended January 31, 2026 (FY2026), Rubrik Inc (RBRK) reported revenue of $1.3 billion (up 48.5% from FY2025) and a net loss of $348.8 million. Diluted EPS was -$1.78.
- As of June 30, 2026, 38 institutional investment managers tracked by SignalX reported holding Rubrik Inc (RBRK) shares worth $4.7 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by Wassenaar Yvonne on October 5, 2026 of 721 shares at $119.00 per share.
- In the last 90 days, RBRK insiders reported 0 open-market purchases ($0) and 68 open-market sales ($15.2M) on Form 4, a net sale of $15.2M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2026
- $1.3B
- +48.5% vs prior year
- Insiders · 90 days
- 0 buys · 68 sells
- Net −$15.2M
- 13F holders
- 38 funds
- $4.7B · −1 vs prior quarter
- Latest 10-Q
- Sep 1, 2026
- Quarterly report
SignalX for RBRK
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Wassenaar Yvonne | Sell | Oct 5, 2026 | 721 | $119.00 |
| THOMPSON JOHN WENDELL | Sell | Oct 1, 2026 | 300 | $114.68 |
| THOMPSON JOHN WENDELL | Sell | Oct 1, 2026 | 1,700 | $115.62 |
| THOMPSON JOHN WENDELL | Sell | Oct 1, 2026 | 500 | $116.47 |
| THOMPSON JOHN WENDELL | C | Oct 1, 2026 | 11,000 | - |
| THOMPSON JOHN WENDELL | Sell | Oct 1, 2026 | 896 | $114.71 |
| THOMPSON JOHN WENDELL | Sell | Oct 1, 2026 | 7,710 | $115.57 |
| THOMPSON JOHN WENDELL | Sell | Oct 1, 2026 | 2,394 | $116.46 |
Financial SummaryXBRL
| Metric | FY2024 | FY2025 | FY2026 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $886.5M | $1.3B |
| Gross Profit | - | $620.8M | $1.1B |
| Operating Income | - | -$1.1B | -$345.4M |
| Net Income | - | -$1.2B | -$348.8M |
| Gross Margin | - | 70.0% | 80.1% |
| Op. Margin | - | -127.9% | -26.2% |
| Net Margin | - | -130.3% | -26.5% |
| Balance Sheet | |||
| Total Assets | $873.6M | $1.4B | $2.8B |
| Equity | - | -$553.7M | -$519.6M |
| ROE | - | 208.6% | 67.1% |
| Per Share | |||
| EPS | - | $-7.48 | $-1.78 |
| Cash Flow | |||
| Operating CF | - | $48.2M | $282.9M |
| CapEx | $12.3M | $16.9M | $29.6M |
Source: XBRL data in Rubrik Inc (RBRK)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate RBRK share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 38 | $4.73B |
| Q1 2026 | 39 | $2.47B |
| Q4 2025 | 36 | $3.91B |
| Q3 2025 | 36 | $3.88B |
| Q2 2025 | 33 | $3.91B |
| Q1 2025 | 26 | $1.59B |
| Q4 2024 | 20 | $1.14B |
| Q3 2024 | 17 | $121.0M |
- AQR Capital Management+7.73M (+349%)
- BlackRock+1.17M (+13%)
- FMR LLC (Fidelity)+940.7K (+11%)
- JPMorgan Chase & Co+423.4K (+23%)
- Vanguard Capital Management LLC+330.1K (+5%)
- Two Sigma Investments−1.75M (-76%)
- Wells Fargo & Co−543.7K (-46%)
- Millennium Management−268.6K (-67%)
- Morgan Stanley−179.5K (-10%)
- Citigroup−159.7K (-46%)
- Citizens Financial Group+7.2K
- M&T Bank+5.3K
- Cisco+2.3K
- Citadel Advisors LLC−731.2K
- Bridgewater Associates LP−35.7K
- Marex Group plc−10.2K
- Principal Financial Group−5.3K
Source: 13F-HR filings on SEC EDGAR (aggregated from 245 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
RBRK filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
8-K current reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
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RBRK SEC filings: frequently asked questions
Are RBRK insiders buying or selling?
In the last 90 days, Rubrik Inc (RBRK) officers, directors and 10% owners reported no open-market purchases and 68 open-market sales worth $15.2 million by 5 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold RBRK stock?
As of June 30, 2026, the largest Rubrik Inc (RBRK) holders among the 13F filers tracked by SignalX were BlackRock ($802.0 million), AQR Capital Management ($780.1 million), FMR LLC (Fidelity) ($738.7 million), Vanguard Portfolio Management LLC ($666.4 million), Vanguard Capital Management LLC ($552.7 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was RBRK's revenue in fiscal year 2026?
For the fiscal year ended January 31, 2026 (FY2026), Rubrik Inc (RBRK) reported revenue of $1.3 billion (up 48.5% from FY2025) and a net loss of $348.8 million. Diluted EPS was -$1.78. The figures come from the XBRL data in the 10-K.
What are the latest RBRK SEC filings?
Rubrik Inc (RBRK) filed its latest 10-K annual report on March 19, 2026, a 10-Q quarterly report on September 1, 2026, an 8-K current report on August 27, 2026 and a Form 4 insider filing on October 6, 2026.
What is RBRK's SEC CIK number?
Rubrik Inc (RBRK)'s SEC Central Index Key (CIK) is 1943896. EDGAR lists every RBRK filing under that number.
Ask anything about RBRK
The research agent reads RBRK's filings, financials, insider trades and 13F holders, then answers with sources.