RBRK
RUBRIK-A (RBRK)
NYSE
$120.20-$0.19 (-0.15%)
Price as of Oct 22, 2026 7:57 PM EDT
  • $20.1B
    Market Cap
  • 56.64%
    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

  • Institutions711.5M (59.66%)
  • Mutual Funds449.0M (37.65%)
  • Insiders32.0M (2.69%)
  • Other0 (0.00%)

Insider Transactions

  • 2.69% (32.0M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $141,677.21
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $4.4B
    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
Oct 07, 2026
$0.00
12,820
$0.00
10.0M
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Oct 07, 2026
$0.00
12,820
$0.00
285,358
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 07, 2026
$182,266.96
1,478
$123.32
283,880
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 07, 2026
$1.0M
8,274
$124.05
275,606
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 07, 2026
$381,233.45
3,055
$124.79
272,551
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 07, 2026
$1,632.41
13
$125.57
272,538
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Oct 06, 2026
$0.00
12,820
$0.00
285,358
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 06, 2026
$72,953.70
582
$125.35
284,776
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 06, 2026
$1.4M
11,101
$126.14
273,675
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 06, 2026
$135,624.03
1,069
$126.87
272,606
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 06, 2026
$8,683.60
68
$127.70
272,538
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Oct 06, 2026
$0.00
12,820
$0.00
10.0M
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Oct 05, 2026
$0.00
2,501
$0.00
285,358
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 05, 2026
$58,865.40
495
$118.92
284,863
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 05, 2026
$13,228.60
110
$120.26
284,753
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 05, 2026
$109,201.20
901
$121.20
283,852
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 05, 2026
$341,581.95
2,801
$121.95
281,051
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 05, 2026
$688,744.00
5,600
$122.99
275,451
Nithrakashyap Arvind
Chief Technology Officer
Sell
Oct 05, 2026
$360,629.40
2,913
$123.80
272,538
Nithrakashyap Arvind
Chief Technology Officer
Conversion
Oct 05, 2026
$0.00
2,501
$0.00
10.0M
Sinha Bipul
Chairman of the Board and CEO
Other
Sep 25, 2026
$0.00
500,000
$0.00
500,000
Sinha Bipul
Chairman of the Board and CEO
Gift
Sep 25, 2026
$0.00
55,000
$0.00
56,652
Sinha Bipul
Chairman of the Board and CEO
Conversion
Sep 24, 2026
$0.00
500,000
$0.00
500,000
Sinha Bipul
Chairman of the Board and CEO
Conversion
Sep 24, 2026
$0.00
55,000
$0.00
111,652
Sinha Bipul
Chairman of the Board and CEO
Conversion
Sep 24, 2026
$0.00
555,000
$0.00
10.7M
Choudary Kiran Kumar
Chief Financial Officer
Sell
Sep 17, 2026
$20,410.00
200
$102.05
963,878
Choudary Kiran Kumar
Chief Financial Officer
Sell
Sep 17, 2026
$20,772.00
200
$103.86
963,678
Choudary Kiran Kumar
Chief Financial Officer
Sell
Sep 17, 2026
$31,794.00
300
$105.98
963,378
Choudary Kiran Kumar
Chief Financial Officer
Sell
Sep 17, 2026
$293,041.76
2,728
$107.42
960,650
Choudary Kiran Kumar
Chief Financial Officer
Sell
Sep 17, 2026
$277,904.60
2,572
$108.05
958,078