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 Moderately bearish Selling ran elevated versus RBRK's own trailing one-year pace, with 83% 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
5
120 transactions
Purchases
$502.2K
10,638 shares
Sales
$47.3M
645,403 shares
Net activity
-$46.8M
purchases less sales

How much of that selling was preplanned? 83% planned / 17% discretionary

10b5-1 plan sales $39.4M 116 transactions · 485,865 shares
Discretionary sales $7.9M 4 transactions · 159,538 shares

Largest single sale: $6.2M.

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

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.