13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Prepackaged SoftwareMega-capCrowded
RPD

RAPID7 INC

261 institutions still hold RAPID7 INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 753422104·Services-Prepackaged Software·261 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 2.0%
vs prior quarter
13F value held
$273M
53.0% inst. owned
of float
Holders
261
+33 QoQ
filers reporting
Activity
+9 / −52
+857 added · −730 reduced
this quarter
Concentration
13.60%
JANA Partners Management, LP #1
top holder share
AI Holders Summary · Q1 2026

261 institutions reported RPD in Q1 2026. JANA Partners Management, LP leads at 13.6% of the visible book. +33 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
JANA Partners Management, LP
CIK 0001998597
$37M6.7M2.31%Q1 202602
BlackRock, Inc.
CIK 0002012383
$36M6.6M0.00%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$28M5.2M0.00%Q1 202604
MARSHALL WACE, LLP
CIK 0001318757
$21M1.4M0.02%Q4 202505
Alyeska Investment Group, L.P.
CIK 0001453072
$18M1.2M0.05%Q4 202506
UBS Group AG
CIK 0001610520
$17M3.1M0.00%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$15M2.7M0.00%Q1 202608
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$12M2.2M0.01%Q1 202609
STATE STREET CORP
CIK 0000093751
$12M2.1M0.00%Q1 202610
Invenomic Capital Management LP
CIK 0001769456
$10M628K0.44%Q4 202511
CITADEL ADVISORS LLC
CIK 0001423053
$9M585K0.00%Q4 202512
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$8M1.4M0.00%Q1 202613
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$8M1.4M0.01%Q1 202614
TWO SIGMA ADVISERS, LP
CIK 0001478735
$7M485K0.01%Q4 202515
Thematics Asset Management
CIK 0001956031
$7M377K0.32%Q3 202516
D. E. Shaw & Co., Inc.
CIK 0001009207
$7M448K0.00%Q4 202517
VOLORIDGE INVESTMENT MANAGEMENT, LLC
CIK 0001556921
$5M357K0.02%Q4 202518
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$5M946K0.00%Q1 202619
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$5M938K0.00%Q1 202620
Point72 Asset Management, L.P.
CIK 0001603466
$5M905K0.01%Q1 2026
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