SEC Form 4
Rubrik, Inc. (RBRK) insider trading
In the 12 months to Oct 26, 2026, 6 RBRK insiders reported open-market sales of $58.3M across 42 filings; one director bought $502.2K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $58.3M
- 42 filings · 6 insiders
- Open-market purchases
- $502.2K
- 1 filing · Mark D. Mclaughlin, Director
- Pre-arranged sales (10b5-1)
- 39 of 42
- $57.2M of $58.3M sold (98%)
Who traded RBRK, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
RBRK daily close from Oct 27, 2025 to Oct 26, 2026, between $43.81 and $135.55, last $135.55. 42 sale and 1 purchase filings by 7 insiders, marked at their filing dates. Arvind Nithrakashyap, Chief Technology Officer: sold $33.9M across 6 filings, first filed Jan 16, 2026, last Oct 7, 2026. John Wendell Thompson, Director: sold $11.2M across 12 filings, first filed Nov 4, 2025, last Oct 2, 2026. Kiran Kumar Choudary, Chief Financial Officer: sold $9.2M across 11 filings, first filed Nov 6, 2025, last Sep 17, 2026. Brian K. McCarthy, Pres.,Global Sales & Field Ops: sold $2.4M across 3 filings, first filed Nov 12, 2025, last Jan 13, 2026. Ravi Mhatre, Director: sold $1.1M across 3 filings, first filed Jan 16, 2026, last Jul 14, 2026. Yvonne Wassenaar, Director: sold $585.0K across 7 filings, first filed Jun 1, 2026, last Oct 6, 2026. Mark D. Mclaughlin, Director: bought $502.2K across 1 filing, first filed Apr 1, 2026, last Apr 1, 2026.
Largest mark · tap a row for others
Arvind Nithrakashyap · Chief Technology Officer
Sale $18,873,677
225,087 shares at $83.85 avg
Filed Jun 3, 2026 · traded Jun 1
Pre-arranged (10b5-1) · close on filing date $79.46
Arvind Nithrakashyap · Chief Technology Officer
Chief Technology Officer
$33.9M soldJohn Wendell Thompson · Director
Director
$11.2M soldKiran Kumar Choudary · Chief Financial Officer
Chief Financial Officer
$9.2M soldBrian K. McCarthy · Pres.,Global Sales & Field Ops
Pres.,Global Sales & Field Ops
$2.4M soldRavi Mhatre · Director
Director
$1.1M soldYvonne Wassenaar · Director
Director
$585.0K soldMark D. Mclaughlin · Director
Director
$502.2K boughtOpen-market trades
43 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Arvind Nithrakashyap | Chief Technology Officer | $33.9M | — | 6 | 100% of sales | |
| John Wendell Thompson | Director | $11.2M | — | 12 | 100% of sales | |
| Kiran Kumar Choudary | Chief Financial Officer | $9.2M | — | 11 | 100% of sales | |
| Brian K. McCarthy | Pres.,Global Sales & Field Ops | $2.4M | — | 3 | 100% of sales | |
| Ravi Mhatre | Director | $1.1M | — | 3 | — | |
| Yvonne Wassenaar | Director | $585.0K | — | 7 | 100% of sales | |
| Mark D. Mclaughlin | Director | — | $502.2K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Arvind Nithrakashyap Chief Technology Officer | SalePre-arranged (10b5-1) | 38,460 | $124.32 | $4.8M | 272,551 | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 721 | $119.00 | $85.8K | 2,988 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $115.69 | $1.6M | Multiple accounts | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 10,000 | $104.81 | $1.0M | 963,378 | |
traded | Arvind Nithrakashyap Chief Technology Officer | SalePre-arranged (10b5-1) | 38,460 | $90.73 | $3.5M | 305,133 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $89.03 | $1.2M | Multiple accounts | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 721 | $89.52 | $64.5K | 3,709 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 10,000 | $98.32 | $983.2K | 978,373 | |
traded | Arvind Nithrakashyap Chief Technology Officer | SalePre-arranged (10b5-1) | 38,460 | $79.19 | $3.0M | 293,814 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $74.10 | $1.0M | Multiple accounts | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 721 | $75.00 | $54.1K | 3,917 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 28,000 | $81.73 | $2.3M | 986,173 | |
traded | Ravi Mhatre Director | Sale | 3,979 | $83.10 | $330.7K | 0 | |
traded | Arvind Nithrakashyap Chief Technology Officer | SalePre-arranged (10b5-1) | 38,460 | $86.65 | $3.3M | 305,470 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $82.67 | $1.1M | Multiple accounts | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 721 | $81.57 | $58.8K | 4,638 | |
traded | Ravi Mhatre Director | Sale | 3,979 | $71.49 | $284.5K | 0 | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 676 | $75.00 | $50.7K | 5,359 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $84.54 | $1.1M | Multiple accounts | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 721 | $80.73 | $58.2K | 2,326 | |
traded | Arvind Nithrakashyap Chief Technology Officer | SalePre-arranged (10b5-1) | 225,087 | $83.85 | $18.9M | 325,841 | |
traded | Yvonne Wassenaar Director | SalePre-arranged (10b5-1) | 2,838 | $75.00 | $212.9K | 2,326 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $55.49 | $749.1K | Multiple accounts | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 | $51.69 | $1.0M | 549,901 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $48.91 | $660.3K | Multiple accounts | |
traded | Mark D. Mclaughlin Director | Purchase | 10,638 | $47.21 | $502.2K | 13,639 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $53.60 | $723.6K | Multiple accounts | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 | $54.17 | $1.1M | 494,059 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $55.29 | $746.5K | Multiple accounts | |
traded | Ravi Mhatre Director | Sale | 5,307 | $85.27 | $452.5K | 0 | |
traded | Arvind Nithrakashyap Chief Technology Officer | SalePre-arranged (10b5-1) | 5,693 | $70.34 | $400.4K | 337,010 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 20,000 | $67.66 | $1.4M | 489,959 | |
traded | Brian K. McCarthy Pres.,Global Sales & Field Ops | SalePre-arranged (10b5-1) | 10,000 | $70.88 | $708.8K | 334,705 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 3,500 | $76.20 | $266.7K | 504,959 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 13,500 | $73.84 | $996.9K | Multiple accounts | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 3,500 | $79.25 | $277.4K | 507,359 | |
traded | Brian K. McCarthy Pres.,Global Sales & Field Ops | SalePre-arranged (10b5-1) | 10,000 | $90.83 | $908.3K | 343,919 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 3,500 | $91.46 | $320.1K | 510,851 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 9,009 | $68.75 | $619.3K | 5,784 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 3,500 | $69.46 | $243.1K | 509,051 | |
traded | Brian K. McCarthy Pres.,Global Sales & Field Ops | SalePre-arranged (10b5-1) | 10,000 | $75.90 | $759.0K | 353,054 | |
traded | Kiran Kumar Choudary Chief Financial Officer | SalePre-arranged (10b5-1) | 3,500 | $72.29 | $253.0K | 510,551 | |
traded | John Wendell Thompson Director | SalePre-arranged (10b5-1) | 9,009 | $75.45 | $679.7K | 1,498 |
GET /stocks/filings/vX/form-4?tickers=RBRK&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"RBRK"
],
"issuer_cik": "0001943896",
"owner_cik": "0002019143",
"accession_number": "0002019143-26-000023",
"form_type": "4",
"filing_date": "2026-10-07",
"period_of_report": "2026-10-05",
"issuer_name": "Rubrik, Inc.",
"issuer_trading_symbol": "RBRK",
"owner_name": "Nithrakashyap Arvind",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Technology Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-05",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 901,
"transaction_price_per_share": 121.2,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 283852,
"transaction_value": 109201.2,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2025."
},
{
"id": "F4",
"description": "The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.54 to $121.4775\n per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote."
}
]
},
{
"tickers": [
"RBRK"
],
"issuer_cik": "0001943896",
"owner_cik": "0002019143",
"accession_number": "0002019143-26-000023",
"form_type": "4",
"filing_date": "2026-10-07",
"period_of_report": "2026-10-05",
"issuer_name": "Rubrik, Inc.",
"issuer_trading_symbol": "RBRK",
"owner_name": "Nithrakashyap Arvind",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Technology Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-07",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 8274,
"transaction_price_per_share": 124.05,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 275606,
"transaction_value": 1026389.7,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2025."
},
{
"id": "F13",
"description": "The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.565 to $124.56 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 141 records
- Tax withholding4 records
- Tax withholding (sold to cover)7 records
- Grants and awards16 records
- Gifts2 records
- Other112 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has Rubrik, Inc.'s CEO sold stock?
No. Bipul Sinha (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is RBRK’s insider data?
These are RBRK Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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