13F Insight
DOSSIER · 13F Holders · Q2 2026
RBRK 0 06/15/30

RUBRIK INC.

54 institutions still hold RUBRIK INC. as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 781154AD1·54 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$833M
visible holders
Holders
54
filers reporting
Concentration
26.72%
LINDEN ADVISORS LP #1
top holder share
AI Holders Summary · Q2 2026

54 institutions reported RBRK 0 06/15/30 in Q2 2026. LINDEN ADVISORS LP leads at 26.7% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
LINDEN ADVISORS LP
CIK 0001279396
$223M217.6M1.15%Q2 202602
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$128M125.7M1.13%Q2 202603
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$66M65.0M0.94%Q2 202604
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
CIK 0001595082
$61M60.0M0.73%Q2 202605
WHITEBOX ADVISORS LLC
CIK 0001257391
$54M52.4M0.70%Q2 202606
Verition Fund Management LLC
CIK 0001454027
$37M36.5M0.19%Q2 202607
Calamos Advisors LLC
CIK 0001316507
$31M30.7M0.10%Q2 202608
Jump Financial, LLC
CIK 0001831577
$29M28.5M0.23%Q2 202609
MACKAY SHIELDS LLC
CIK 0000061227
$26M21.5M0.93%Q3 202610
BlackRock, Inc.
CIK 0002012383
$24M23.7M0.00%Q2 202611
ADVENT CAPITAL MANAGEMENT /DE/
CIK 0001097278
$22M21.6M0.49%Q2 202612
Weiss Asset Management LP
CIK 0001357550
$20M20.0M0.21%Q2 202613
STATE STREET CORP
CIK 0000093751
$17M17.0M0.00%Q2 202614
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$16M16.0M0.01%Q2 202615
Man Group plc
CIK 0001637460
$14M13.4M0.02%Q2 202616
FMR LLC
CIK 0000315066
$13M12.7M0.00%Q2 202617
Aequim Alternative Investments LP
CIK 0001728201
$13M12.5M0.20%Q2 202618
Context Capital Management, LLC
CIK 0001301396
$12M12.2M0.24%Q2 202619
LOOMIS SAYLES & CO L P
CIK 0000312348
$12M154K0.02%Q2 202620
AGF MANAGEMENT LTD
CIK 0001003518
$12M15.0M0.05%Q2 2026
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