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RBRK · Rubrik, Inc. · Shareholders & Ownership

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$120.38 +5.79 (+5.05%) At close · Oct 21
Market Cap
$23.76B
Shares
207.30M
Volume · Oct 21 2.55M Avg daily vol (3M) 3.21M

Every disclosed holder of RBRK in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns RBRK

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 130,147,725 62.78%
Insiders (Forms 3, 4, 5) 0 0.00%
13D/G-only blocks 35,362,672 17.06%
Remaining 41,794,036 20.16%
Registered funds (N-PORT, not summed) 53,112,510 25.62%

Shares outstanding: 207,304,433, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of RBRK

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
9,990,174
1.1
iShares Expanded Tech-Software Sector ETF
Fund S000004355 · Registered fund · Jun 30, 2026
iShares Trust, not summed
824,041
1.2
iShares Russell Mid-Cap ETF
Fund S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
636,490
1.3
iShares Russell Mid-Cap Growth ETF
Fund S000004336 · Registered fund · Jun 30, 2026
iShares Trust, not summed
616,411
1.4
iShares Russell 1000 Growth ETF
Fund S000004346 · Registered fund · Jun 30, 2026
iShares Trust, not summed
398,487
1.5
iShares Core S&P Total U.S. Stock Market ETF
Fund S000004317 · Registered fund · Jun 30, 2026
iShares Trust, not summed
209,228
2
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
9,947,988
2.1
AQR CAPITAL MANAGEMENT LLC
13G CIK 1167557 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
9,948,468
2.2
AQR Long-Short Equity Fund
Fund S000041116 · Registered fund · Jun 30, 2026
AQR Funds, not summed
604,325
2.3
AQR Style Premia Alternative Fund
Fund S000042050 · Registered fund · Jun 30, 2026
AQR Funds, not summed
160,616
2.4
AQR Equity Market Neutral Fund
Fund S000046740 · Registered fund · Jun 30, 2026
AQR Funds, not summed
151,536
2.5
AQR Large Cap Multi-Style Fund
Fund S000040063 · Registered fund · Jun 30, 2026
AQR Funds, not summed
103,674
3
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
9,202,121
3.1
Select Software and IT Services Portfolio
Fund S000007483 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
1,933,500
3.2
Fidelity Growth Company Fund
Fund S000007119 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
1,296,657
3.3
Select Technology Portfolio
Fund S000007484 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
1,254,487
3.4
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
782,060
3.5
Fidelity Mid Cap Index Fund
Fund S000033637 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
587,269
4
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
8,301,380
5
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
6,885,243
5.1
VANGUARD CAPITAL MANAGEMENT LLC
13G CIK 2100119 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
8,127,004
6
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,980,251
6.1
First Trust Technology AlphaDEX Fund
Fund S000017703 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
105,934
6.2
First Trust Innovation Leaders ETF
Fund S000071847 · Registered fund · Aug 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
39,797
6.3
First Trust Mid Cap Growth AlphaDEX Fund
Fund S000031804 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
34,300
6.4
First Trust Mid Cap Core AlphaDEX Fund
Fund S000017338 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
25,660
6.5
First Trust Multi Cap Growth AlphaDEX Fund
Fund S000017343 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
10,297
7
Greylock XIV GP LLC
13G CIK 1584740 · Unknown · Jun 30, 2025
Rule 13d-1(d), exempt investor
4,973,830
8
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
4,748,700
9
First Trust Nasdaq Cybersecurity ETF
Fund S000050385 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund II, not summed
4,595,907
10
NORGES BANK
13F CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
4,069,424
11
VOYA INVESTMENT MANAGEMENT LLC
13F CIK 1068837 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,004,750
12
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
3,430,515
13
Ravi Mhatre
13G CIK 1539061 · Unknown · Jun 30, 2026
Rule 13d-1(d), exempt investor
3,297,558
13.1
Lightspeed Venture Partners IX, L.P.
Insider CIK 1539061 · Jun 26, 2025
10% Owner, issuer-wide, not summed
67,569
14
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,875,284
15
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,861,374
15.1
State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF
Fund S000063362 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
53,266
15.2
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
52,600
15.3
State Street(R) SPDR(R) S&P(R) Software & Services ETF
Fund S000012329 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
41,187
15.4
State Street(R) SPDR(R) S&P Kensho Future Security ETF
Fund S000059702 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
26,956
15.5
State Street(R) SPDR(R) FactSet Innovative Technology ETF
Fund S000051577 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
8,007
16
Legal & General Group Plc
13F CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,620,318
17
Greylock XIV GP LLC
Insider CIK 1660424 · Mar 28, 2025
10% Owner, issuer-wide, not summed
2,486,916
18
Pictet Asset Management Holding SA
13F CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,368,281
19
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,253,594
20
VANGUARD INFORMATION TECHNOLOGY INDEX FUND
Fund S000004452 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
2,220,766
21
Anatole Investment Management Ltd
13F CIK 1693745 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,189,257
22
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,172,397
23
VK Services, LLC
13G CIK 1611146 · Unknown · Dec 31, 2024
Rule 13d-1(d), exempt investor
1,956,551
24
PointState Capital LP
13F CIK 1509842 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,856,244
25
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,846,002
26
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,739,658
26.1
PACE Small/Medium Co Growth Equity Investments
Fund S000002974 · Registered fund · Jul 31, 2026
PACE SELECT ADVISORS TRUST, not summed
24,110
27
Clearbridge Investments, LLC
13F CIK 1348883 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,577,133
28
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,542,643
28.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
182
29
BNP PARIBAS ARBITRAGE, SA
13F CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
1,500,810
30
INSTITUTIONAL VENTURE MANAGEMENT XV, LLC
13F CIK 1640275 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,431,479
31
VANGUARD EXPLORER FUND
Fund S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
1,386,596
32
Penserra Capital Management LLC
13F CIK 1593324 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,379,614
33
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,324,361
34
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,317,511
34.1
Schwab U.S. Mid-Cap ETF
Fund S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
410,646
34.2
Schwab U.S. Large-Cap Growth ETF
Fund S000026633 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
332,907
34.3
Schwab U.S. Large-Cap ETF
Fund S000026632 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
161,095
34.4
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
98,025
34.5
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
91,988
35
FEDERATED HERMES, INC.
13F CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,317,203
36
Amplify Cybersecurity ETF
Fund S000082278 · Registered fund · Jun 30, 2026
Amplify ETF Trust, not summed
1,285,013
37
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,254,839
38
PRICE T ROWE ASSOCIATES INC /MD/
13F CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,168,219
38.1
T. Rowe Price New Horizons Fund, Inc.
Fund S000002106 · Registered fund · Jun 30, 2026
T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
333,745
38.2
T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.
Fund S000002073 · Registered fund · Jun 30, 2026
T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC., not summed
146,446
38.3
T. Rowe Price Extended Equity Market Index Fund
Fund S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
19,019
38.4
T. Rowe Price Mid-Cap Index Fund
Fund S000051326 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
13,741
38.5
T. Rowe Price Tax-Efficient Equity Fund
Fund S000002160 · Registered fund · May 31, 2026
T. ROWE PRICE TAX-EFFICIENT FUNDS, INC., not summed
2,600
39
BAMCO INC /NY/
13F CIK 1017918 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,115,395
39.1
BARON DISCOVERY FUND
Fund S000042178 · Registered fund · Jun 30, 2026
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND), not summed
509,500
39.2
BARON OPPORTUNITY FUND
Fund S000000585 · Registered fund · Jun 30, 2026
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND), not summed
314,500
39.3
Baron Technology ETF
Fund S000096485 · Registered fund · Jun 30, 2026
Baron ETF Trust, not summed
52,690
39.4
Baron SMID Cap ETF
Fund S000096483 · Registered fund · Jun 30, 2026
Baron ETF Trust, not summed
13,382
40
JPMorgan Mid Cap Growth Fund
Fund S000003654 · Registered fund · Jun 30, 2026
JPMorgan Trust II, not summed
1,067,617
41
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,024,282
42
ALLIANCEBERNSTEIN L.P.
13F CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
985,632
42.1
AB Small Cap Growth Portfolio
Fund S000010309 · Registered fund · Jun 30, 2026
AB CAP FUND, INC., not summed
438,363
42.2
Small Cap Core Portfolio
Fund S000051867 · Registered fund · Jun 30, 2026
Bernstein Fund Inc, not summed
47,878
42.3
AB Small Cap Growth Portfolio
Fund S000010435 · Registered fund · Jun 30, 2026
AB VARIABLE PRODUCTS SERIES FUND, INC., not summed
8,545
43
Choudary Kiran Kumar
Insider CIK 2020220 · Sep 17, 2026
Chief Financial Officer, issuer-wide, not summed
958,078
44
WESTFIELD CAPITAL MANAGEMENT CO LP
13F CIK 1177719 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
937,308
45
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
922,048
45.1
Goldman Sachs Small/Mid Cap Growth Fund
Fund S000009322 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
125,459
45.2
Goldman Sachs Large Cap Growth Insights Fund
Fund S000009328 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
31,047
45.3
Goldman Sachs MarketBeta U.S. 1000 Equity ETF
Fund S000075322 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust II, not summed
4,641
45.4
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
1,591
45.5
Goldman Sachs MarketBeta(R) Russell 1000 Growth Equity ETF
Fund S000083005 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
1,403
46
IEQ CAPITAL, LLC
13F CIK 1779789 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
913,371
47
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
868,382
47.1
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
4,740
48
BARCLAYS PLC
13F CIK 312069 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
786,511
49
Amundi
13F CIK 1330387 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
775,148
50
McCarthy Brian K.
Insider CIK 2020217 · Jan 31, 2026
Pres.,Global Sales & Field Ops, issuer-wide, not summed
772,794

79 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 766 holders

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Key facts CIK 1943896 CUSIP 781154109 13F (30d) 93 filings 89 filers Visit website Investor relations