RBRK
RUBRIK-A (RBRK)
NYSE
$99.75-$0.34 (-0.34%)
Price as of Aug 21, 2026 7:59 PM EDT
  • $16.1B
    Market Cap
  • 12.75%
    1-Year Change
  • Software - Infrastructure
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD GROUP INC
7.14%
14.7M
+1.7M (+11.42%)
Dec 31, 2025
BLACKROCK, INC.
4.85%
10.0M
+1.2M (+11.75%)
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
4.83%
9.9M
+7.7M (+77.71%)
Jun 30, 2026
FMR LLC
4.47%
9.2M
+940,730 (+10.22%)
Jun 30, 2026
N/A
4.03%
8.3M
+271,772 (+3.27%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
4.03%
8.3M
+271,772 (+3.27%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
3.35%
6.9M
+330,132 (+4.79%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions708.9M (61.77%)
  • Mutual Funds396.0M (34.50%)
  • Insiders42.8M (3.73%)
  • Other0 (0.00%)

Insider Transactions

  • 3.73% (42.8M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $141,677.21
    Amount of InsiderBuying (last 12 months)
  • 7
    Number of InsiderSelling (last 12 months)
  • $2.9B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Aug 05, 2026
$0.00
12,820
$0.00
10.1M
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Aug 05, 2026
$0.00
12,820
$0.00
306,113
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 05, 2026
$110,151.36
1,342
$82.08
304,771
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 05, 2026
$231,212.60
2,780
$83.17
301,991
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 05, 2026
$687,685.70
8,177
$84.10
293,814
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 05, 2026
$44,081.81
521
$84.61
293,293
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Aug 04, 2026
$0.00
12,820
$0.00
306,113
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 04, 2026
$16,275.24
212
$76.77
305,901
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 04, 2026
$101,620.97
1,303
$77.99
304,598
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 04, 2026
$235,826.91
2,981
$79.11
301,617
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 04, 2026
$300,644.27
3,767
$79.81
297,850
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 04, 2026
$368,843.58
4,557
$80.94
293,293
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Aug 04, 2026
$0.00
12,820
$0.00
10.1M
Wassenaar Yvonne
Sell
Aug 03, 2026
$54,075.00
721
$75.00
3,917
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Aug 03, 2026
$0.00
2,502
$0.00
10.1M
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Aug 03, 2026
$0.00
2,502
$0.00
306,113
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 03, 2026
$563,368.24
7,642
$73.72
298,471
Nithrakashyap Arvind
Chief Technology Officer
Sell
Aug 03, 2026
$385,864.56
5,178
$74.52
293,293
Choudary Kiran Kumar
Chief Financial Officer
Exempt
Jul 15, 2026
$0.00
12,000
$0.00
19,450
Choudary Kiran Kumar
Chief Financial Officer
Exempt
Jul 15, 2026
$0.00
12,000
$0.00
12,000
Choudary Kiran Kumar
Chief Financial Officer
Conversion
Jul 15, 2026
$0.00
12,000
$0.00
0
Choudary Kiran Kumar
Chief Financial Officer
Conversion
Jul 15, 2026
$0.00
12,000
$0.00
1.0M
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$1.3M
15,600
$80.15
996,473
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$388,512.00
4,800
$80.94
991,673
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$98,724.00
1,200
$82.27
990,473
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$150,066.00
1,800
$83.37
988,673
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$34,060.00
400
$85.15
988,273
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$181,818.00
2,100
$86.58
986,173
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$87,350.00
1,000
$87.35
985,173
Choudary Kiran Kumar
Chief Financial Officer
Sell
Jul 15, 2026
$97,504.00
1,100
$88.64
984,073