RBRK Rubrik, Inc.

NYSE
$100.20

Rubrik, Inc. (RBRK) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with RBRK's own trailing one-year pace, with 69% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 5 sellers in the last 90 days
Insiders buying
1
1 transaction
Insiders selling
6
198 transactions
Purchases
$502.2K
10,638 shares
Sales
$75.9M
1,028,054 shares
Net activity
-$75.4M
purchases less sales

How much of that selling was preplanned? 69% planned / 31% discretionary

10b5-1 plan sales $52.2M 182 transactions · 667,085 shares
Discretionary sales $23.8M 16 transactions · 360,969 shares

Largest single sale: $8.0M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: March 30, 2026 , by MCLAUGHLIN MARK D .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Nithrakashyap Arvind 5 fills Chief Technology Officer Sell 10b5-1 12,820 $90.41 $1.2M 305,744 −4% of holding
Nithrakashyap Arvind 5 fills Chief Technology Officer Sell 10b5-1 12,820 $90.46 $1.2M 302,870 −4.1% of holding
Nithrakashyap Arvind 3 fills Chief Technology Officer Sell 10b5-1 12,820 $91.33 $1.2M 303,346 −4.1% of holding
Wassenaar Yvonne Director Sell 10b5-1 721 $89.52 $64.5K 3,709 −16.3% of holding
THOMPSON JOHN WENDELL 9 fills Director Sell 10b5-1 13,500 $89.03 $1.2M 14,762 −47.8% of holding
Choudary Kiran Kumar 3 fills Chief Financial Officer Sell 10b5-1 10,000 $98.32 $983.2K 983,673 −1% of holding
Nithrakashyap Arvind 4 fills Chief Technology Officer Sell 10b5-1 12,820 $83.71 $1.1M 304,771 −4% of holding
Nithrakashyap Arvind 5 fills Chief Technology Officer Sell 10b5-1 12,820 $79.81 $1.0M 305,901 −4% of holding
THOMPSON JOHN WENDELL 4 fills Director Sell 10b5-1 13,500 $74.10 $1.0M 13,622 −49.8% of holding
Nithrakashyap Arvind 2 fills Chief Technology Officer Sell 10b5-1 12,820 $74.04 $949.2K 298,471 −4.1% of holding
Wassenaar Yvonne Director Sell 10b5-1 721 $75.00 $54.1K 3,917 −15.5% of holding
Choudary Kiran Kumar 8 fills Chief Financial Officer Sell 10b5-1 28,000 $81.73 $2.3M 996,473 −2.7% of holding
Mhatre Ravi Director Sell 3,979 $83.10 $330.7K None left
Nithrakashyap Arvind 4 fills Chief Technology Officer Sell 10b5-1 12,820 $84.58 $1.1M 309,703 −4% of holding
Nithrakashyap Arvind 5 fills Chief Technology Officer Sell 10b5-1 12,820 $87.59 $1.1M 315,682 −3.9% of holding
Nithrakashyap Arvind 7 fills Chief Technology Officer Sell 10b5-1 12,820 $87.78 $1.1M 316,239 −3.9% of holding
THOMPSON JOHN WENDELL 6 fills Director Sell 10b5-1 13,500 $82.67 $1.1M 16,262 −45.4% of holding
Wassenaar Yvonne Director Sell 10b5-1 721 $81.57 $58.8K 4,638 −13.5% of holding
Mhatre Ravi Director Sell 3,979 $71.49 $284.5K None left
Wassenaar Yvonne Director Sell 10b5-1 676 $75.00 $50.7K 5,359 −11.2% of holding
Nithrakashyap Arvind 5 fills Chief Technology Officer Sell 10b5-1 12,820 $78.89 $1.0M 325,841 −3.8% of holding
Wassenaar Yvonne Director Sell 10b5-1 721 $80.73 $58.2K 2,326 −23.7% of holding
Nithrakashyap Arvind 4 fills Chief Technology Officer Sell 10b5-1 12,820 $82.16 $1.1M 325,035 −3.8% of holding
Nithrakashyap Arvind 8 fills Chief Technology Officer Sell 10b5-1 199,447 $84.28 $16.8M 509,340 −28.1% of holding
THOMPSON JOHN WENDELL 11 fills Director Sell 10b5-1 13,500 $84.54 $1.1M 17,400 −43.7% of holding
Wassenaar Yvonne Director Sell 10b5-1 2,838 $75.00 $212.9K 2,326 −55% of holding
THOMPSON JOHN WENDELL 4 fills Director Sell 10b5-1 13,500 $55.49 $749.1K 18,000 −42.9% of holding
Choudary Kiran Kumar 4 fills Chief Financial Officer Sell 10b5-1 20,000 $51.69 $1.0M 566,001 −3.4% of holding
THOMPSON JOHN WENDELL 4 fills Director Sell 10b5-1 13,500 $48.91 $660.3K 20,100 −40.2% of holding
MCLAUGHLIN MARK D Director Buy 10,638 $47.21 $502.2K 13,639
Choudary Kiran Kumar Chief Financial Officer Sell 122,613 $48.20 $5.9M 564,901 −17.8% of holding
Nithrakashyap Arvind Chief Technology Officer Sell 28,967 $48.20 $1.4M 348,668 −7.7% of holding
THOMPSON JOHN WENDELL 6 fills Director Sell 10b5-1 13,500 $53.60 $723.6K 24,800 −35.2% of holding
Choudary Kiran Kumar 3 fills Chief Financial Officer Sell 10b5-1 20,000 $54.17 $1.1M 494,059 −3.9% of holding
THOMPSON JOHN WENDELL 6 fills Director Sell 10b5-1 13,500 $55.29 $746.5K 27,398 −33% of holding
Choudary Kiran Kumar 3 fills Chief Financial Officer Sell 10b5-1 20,000 $67.66 $1.4M 495,586 −3.9% of holding
Nithrakashyap Arvind Chief Technology Officer Sell 10b5-1 4,648 $70.40 $327.2K 337,010 −1.4% of holding
Nithrakashyap Arvind Chief Technology Officer Sell 10b5-1 1,045 $70.05 $73.2K 341,658 −0.3% of holding
McCarthy Brian K. 3 fills Pres.,Global Sales & Field Ops Sell 10b5-1 10,000 $70.88 $708.8K 338,772 −2.9% of holding
Choudary Kiran Kumar 3 fills Chief Financial Officer Sell 10b5-1 3,500 $76.20 $266.7K 506,559 −0.7% of holding
THOMPSON JOHN WENDELL 6 fills Director Sell 10b5-1 13,500 $73.84 $996.9K 6,602 −67.2% of holding
Choudary Kiran Kumar 2 fills Chief Financial Officer Sell 10b5-1 3,500 $79.25 $277.4K 507,359 −0.7% of holding
Nithrakashyap Arvind Chief Technology Officer Sell 31,450 $76.19 $2.4M 342,703 −8.4% of holding
Choudary Kiran Kumar 2 fills Chief Financial Officer Sell 6,779 $76.18 $516.5K 510,754 −1.3% of holding
McCarthy Brian K. 2 fills Pres.,Global Sales & Field Ops Sell 4,797 $76.18 $365.5K 342,718 −1.4% of holding
Mhatre Ravi 4 fills Director Sell 106,966 $81.99 $8.8M 4,001 −96.4% of holding
McCarthy Brian K. 3 fills Pres.,Global Sales & Field Ops Sell 10b5-1 10,000 $90.83 $908.3K 343,919 −2.8% of holding
Choudary Kiran Kumar 4 fills Chief Financial Officer Sell 10b5-1 3,500 $91.46 $320.1K 510,851 −0.7% of holding
THOMPSON JOHN WENDELL 3 fills Director Sell 10b5-1 9,009 $68.75 $619.3K 5,784 −60.9% of holding
Choudary Kiran Kumar 2 fills Chief Financial Officer Sell 10b5-1 3,500 $69.46 $243.1K 510,651 −0.7% of holding
McCarthy Brian K. 2 fills Pres.,Global Sales & Field Ops Sell 10b5-1 10,000 $75.90 $759.0K 353,054 −2.8% of holding
Choudary Kiran Kumar Chief Financial Officer Sell 10b5-1 3,500 $72.29 $253.0K 510,551 −0.7% of holding
THOMPSON JOHN WENDELL 3 fills Director Sell 10b5-1 9,009 $75.45 $679.7K 8,901 −50.3% of holding
Choudary Kiran Kumar 3 fills Chief Financial Officer Sell 10b5-1 3,500 $79.78 $279.2K 514,351 −0.7% of holding
McCarthy Brian K. 4 fills Pres.,Global Sales & Field Ops Sell 10b5-1 10,000 $83.03 $830.3K 367,272 −2.7% of holding
THOMPSON JOHN WENDELL 3 fills Director Sell 10b5-1 9,009 $82.76 $745.6K 6,456 −58.3% of holding
Choudary Kiran Kumar 3 fills Chief Financial Officer Sell 10b5-1 3,500 $82.68 $289.4K 515,531 −0.7% of holding
Choudary Kiran Kumar Chief Financial Officer Sell 10b5-1 3,500 $74.82 $261.9K 514,684 −0.7% of holding
Nithrakashyap Arvind Chief Technology Officer Sell 40,170 $74.21 $3.0M 333,528 −10.7% of holding
Choudary Kiran Kumar Chief Financial Officer Sell 6,599 $74.21 $489.7K 516,184 −1.3% of holding
McCarthy Brian K. Chief Revenue Officer Sell 4,670 $74.21 $346.6K 407,632 −1.1% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.