Rubrik

RBRK • NYSE

Rubrik is a software - infrastructure company in the technology sector on NYSE, led by Bipul Sinha, with a market cap of $13.8B. As of Q3 2025, 52% of shares are held by 425 institutional investors, with VANGUARD GROUP INC as the largest holder at 6.59%.

CEOBipul Sinha

Market Cap$13.8B

Software - Infrastructure

Technology

Websiterubrik.com

Country

United States of America

Overview

Overview of institutional ownership in RBRK as of Q3 2025 with a market cap of $16.2B

All Institutions

Institutions: 425
Value Held: $8.4B
Shares Held: 102.5M
Avg Position: $19.8M
Median Position: $1.4M

Hedge Funds

Hedge Funds: 62
Value Held: $1.3B
Shares Held: 15.7M
Avg Position: $20.8M
Median Position: $4.9M

Ownership Breakdown

Institutional (non-HF)

43.94%

$7.1B

Hedge Funds

7.96%

$1.3B

Retail & Other

48.11%

$7.8B

Based on market cap of $16.2B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in RBRK as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$1.1B 0.02% of portfolio	6.59% 13.0M shares	Q2 2024 Held for 1y 6m	$6.69T
BlackRock, Inc. Institution	Laurence D. Fink CEO	$832.9M 0.01% of portfolio	5.13% 10.1M shares	Q2 2024 Held for 1y 6m	$5.67T
FIRST TRUST ADVISORS LP ETF Provider	James Allen Bowen CEO	$407.0M 0.30% of portfolio	2.51% 4.9M shares	Q2 2024 Held for 1y 6m	$134.15B
ING INVESTMENT MANAGEMENT LLC Insurance Manager	Matthew Nmn Toms CEO	$293.6M 0.33% of portfolio	1.81% 3.6M shares	Q2 2024 Held for 1y 6m	$88.4B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$220.4M 0.18% of portfolio	1.36% 2.7M shares	Q2 2024 Held for 1y 6m	$122.10B
FMR LLC Institution	-	$215.4M 0.01% of portfolio	1.33% 2.6M shares	Q2 2024 Held for 1y 6m	$1.92T
FEDERATED INVESTORS INC /PA/ Long Only Manager	Gregory Philip Dulski Chairman	$200.5M 0.35% of portfolio	1.23% 2.4M shares	Q3 2024 Held for 1y 3m	$56.6B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$193.8M 0.01% of portfolio	1.19% 2.3M shares	Q2 2024 Held for 1y 6m	$1.57T
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$171.3M 0.01% of portfolio	1.05% 2.1M shares	Q2 2024 Held for 1y 6m	$2.88T
UBS Group AG Institution	Sergio P. Ermotti CEO	$154.5M 0.03% of portfolio	0.95% 1.9M shares	Q2 2024 Held for 1y 6m	$511.60B

Net Capital Flow

Institutional buying and selling activity for RBRK in Q3 2025

Traded: +$768.5M
Buyers: 308
Sellers: 154
Total Bought: +$2.3B
Total Sold: −$1.5B
Avg Position: $16.7M

Biggest Buyers

Institution	Net Bought	Current Position
BlackRock, Inc. Institution	+$145.8M +1.8M shares	$832.9M 10.1M shares
PointState Capital LP Hedge Fund•Multi-Strategy	+$140.0M +1.7M shares	$140.0M 1.7M shares
Pictet Asset Management Holding SA Long Only Manager	+$106.9M +1.3M shares	$108.1M 1.3M shares
FEDERATED INVESTORS INC /PA/ Long Only Manager	+$101.1M +1.2M shares	$200.5M 2.4M shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$97.8M +1.2M shares	$97.8M 1.2M shares
UBS Group AG Institution	+$87.4M +1.1M shares	$154.5M 1.9M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$82.6M +1.0M shares	$220.4M 2.7M shares
VANGUARD GROUP INC Institution	+$81.7M +993.6K shares	$1.1B 13.0M shares
Invesco Ltd. ETF Provider	+$69.3M +842.9K shares	$88.3M 1.1M shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$65.0M +790.6K shares	$70.5M 857.1K shares

Biggest Sellers

Institution	Net Sold	Current Position
D D. E. Shaw & Co., Inc. Institution	−$265.7M −3.2M shares	$89.8M 1.1M shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy	−$105.0M −1.3M shares	$41.3M 502.0K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	−$85.6M −955.6K shares	Sold Off 0 shares
ACADIAN ASSET MANAGEMENT LLC Long Only Manager	−$82.2M −998.9K shares	$45.8M 556.4K shares
G GCIC Ltd. Institution	−$62.2M −694.3K shares	Sold Off 0 shares
I Institutional Venture Management XV, LLC Institution	−$60.6M −737.2K shares	$117.7M 1.4M shares
GOLDMAN SACHS GROUP INC Institution	−$58.4M −709.5K shares	$33.1M 402.9K shares
PATHWAY CAPITAL MANAGEMENT, LP Fund of Funds	−$57.6M −643.2K shares	Sold Off 0 shares
E Ensign Peak Advisors, Inc Institution	−$57.5M −699.4K shares	$10.4M 126.8K shares
B BNP PARIBAS ARBITRAGE, SA Institution	−$56.1M −682.4K shares	$48.8M 593.1K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited RBRK in Q3 2025

New Positions: 104
New Value: $396.4M
Exited Positions: 80
Exited Value: $472.4M

New Positions

Institution	Position Value
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	$97.8M 1.2M shares
E Evergreen Quality Fund GP, Ltd. Institution	$48.7M 592.3K shares
Beacon Pointe Advisors, LLC RIA/Wealth	$32.1M 390.2K shares
Alta Park Capital, LP Hedge Fund•Long/Short	$28.3M 344.1K shares
C CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM Institution	$15.6M 189.7K shares
F FRED ALGER MANAGEMENT INC Long Only Manager	$13.8M 167.6K shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	$13.0M 158.4K shares
Loup Funds, LLC Hedge Fund•Sector	$12.5M 152.1K shares
N NOMURA ASSET MANAGEMENT CO LTD Long Only Manager	$10.1M 123.0K shares
Aquatic Capital Management LLC Hedge Fund•Quant	$9.7M 117.6K shares

Exited Positions

Institution	Previous Position
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	$85.6M 955.6K shares
G GCIC Ltd. Institution	$62.2M 694.3K shares
PATHWAY CAPITAL MANAGEMENT, LP Fund of Funds	$57.6M 643.2K shares
J Jump Financial, LLC Institution	$36.7M 409.3K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$20.7M 230.7K shares
M Monolith Management Ltd Institution	$18.9M 211.1K shares
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC Long Only Manager	$17.6M 196.6K shares
Science & Technology Partners, L.P. Hedge Fund•Long/Short	$15.3M 171.1K shares
Q Quadrature Capital Ltd Institution	$13.5M 150.8K shares
SUSQUEHANNA ADVISORS GROUP, INC. Private Equity	$13.5M 150.4K shares

Options Activity

Institutions with the largest Call and Put options positions in RBRK as of Q3 2025

Call Positions: 22
Call Value: $307.3M
Put Positions: 21
Put Value: $324.7M

Call Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$118.0M 14.3K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$49.8M 6.1K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$37.6M 4.6K contracts
D D. E. Shaw & Co., Inc. Institution	$20.1M 2.4K contracts
W WOLVERINE TRADING, LLC Institution	$19.7M 2.4K contracts
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short	$16.5M 2.0K contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$9.5M 1.2K contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$9.5M 1.2K contracts
P PEAK6 LLC Institution	$8.2M 1.0K contracts
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$5.3M 645.0 contracts

Put Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$98.6M 12.0K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$67.6M 8.2K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$48.2M 5.9K contracts
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short	$27.5M 3.3K contracts
D D. E. Shaw & Co., Inc. Institution	$25.2M 3.1K contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$17.6M 2.1K contracts
W WOLVERINE TRADING, LLC Institution	$13.3M 1.6K contracts
GOLDMAN SACHS GROUP INC Institution	$6.6M 800.0 contracts
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$4.1M 500.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$3.0M 361.0 contracts

Most Committed Institutions

Institutions with RBRK as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
B BAIN CAPITAL VENTURE INVESTORS, LLC Institution	-	98.23% $111.8M	0.69% 1.4M shares	Q2 2024 Held for 1y 6m	$113.8M
I Institutional Venture Management XV, LLC Institution	-	89.60% $117.7M	0.72% 1.4M shares	Q2 2024 Held for 1y 6m	$131.4M
Y Yong Rong Asset Management Ltd Institution	-	5.93% $24.7M	0.15% 300.0K shares	Q1 2025 Held for 9 months	$416.3M
R Robocap Asset Management Ltd Institution	-	5.41% $8.5M	0.05% 103.2K shares	Q4 2024 Held for 1 year	$156.9M
Loup Funds, LLC Hedge Fund•Sector	Douglas J Clinton Managing Partner	5.24% $12.5M	0.08% 152.1K shares	Q3 2025 Held for 3 months	$238.6M
Renaissance Capital LLC ETF Provider	William Kevin Smith CEO	5.21% $9.2M	0.06% 112.5K shares	Q2 2024 Held for 1y 6m	$177.7M
Legacy Capital Group California, Inc. RIA/Wealth	Crystal Dobson Prachyl Member	3.79% $14.9M	0.09% 181.1K shares	Q3 2024 Held for 1y 3m	$392.6M
Evolutionary Tree Capital Management, LLC Long Only Manager	Thomas Merrill Ricketts CEO	3.08% $2.8M	0.02% 34.3K shares	Q2 2025 Held for 6 months	$91.7M
Octahedron Capital Management L.P. Hedge Fund•Long/Short	Ehab Monir Siam COO	3.03% $5.3M	0.03% 64.8K shares	Q2 2024 Held for 1y 6m	$175.9M
Alta Park Capital, LP Hedge Fund•Long/Short	Connor Patrick Joyce CFO	2.77% $28.3M	0.17% 344.1K shares	Q3 2025 Held for 3 months	$1.0B

Hedge Fund Spotlight

Discover hedge funds investing in RBRK

Numerai GP LLC

Hedge Fund • Quant

Portfolio ManagerRichard Malone Craib

Portfolio Value: $707.9M
Positions: 545
Last Reported: Q3 2025

Sector Allocation

Position in Rubrik

Market Value: $1.7M
Shares Held: 20.2K
Portfolio Weight: 0.23%
Owned Since: 2025-Q3

Top Holding	Sector	Market Value	Weight
1 Costco Wholesale COST	Discount Stores Consumer Defensive	$11.8M	1.66%
2 Manulife Financial MFC	Insurance - Life Financial Services	$10.2M	1.44%
3 IDEX IEX	Industrial - Machinery Industrials	$10.1M	1.43%