DOSSIER · 13F Holders · Q1 2026Technology · Services-Prepackaged Software
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
13F value held
$279M
visible holders
Holders
261
filers reporting
Concentration
13.34%
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 13.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
JANA Partners Management, LP
CIK 0001998597
$37M6.7M2.23%Q1 2026
02
BlackRock, Inc.
CIK 0002012383
$36M6.6M0.00%Q1 2026
03
Vanguard Portfolio Management
CIK 0002100121· Index
$28M5.2M0.00%Q1 2026
04
MARSHALL WACE, LLP
CIK 0001318757
$21M1.4M0.02%Q4 2025
05
Alyeska Investment Group, L.P.
CIK 0001453072
$18M1.2M0.05%Q4 2025
06
UBS Group AG
CIK 0001610520
$17M3.1M0.00%Q1 2026
07
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$15M2.7M0.00%Q1 2026
08
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$12M2.2M0.01%Q1 2026
09
STATE STREET CORP
CIK 0000093751
$12M2.1M0.00%Q1 2026
10
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$10M1.8M0.01%Q1 2026
11
Invenomic Capital Management LP
CIK 0001769456
$10M628K0.44%Q4 2025
12
CITADEL ADVISORS LLC
CIK 0001423053
$9M585K0.00%Q4 2025
13
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$8M1.4M0.00%Q1 2026
14
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$8M1.4M0.01%Q1 2026
15
TWO SIGMA ADVISERS, LP
CIK 0001478735
$7M485K0.01%Q4 2025
16
Thematics Asset Management
CIK 0001956031
$7M377K0.32%Q3 2025
17
D. E. Shaw & Co., Inc.
CIK 0001009207
$7M448K0.00%Q4 2025
18
CANADA LIFE ASSURANCE Co
CIK 0001046192
$6M1.1M0.01%Q1 2026
19
VOLORIDGE INVESTMENT MANAGEMENT, LLC
CIK 0001556921
$5M357K0.02%Q4 2025
20
LSV ASSET MANAGEMENT
CIK 0001050470
$5M946K0.01%Q1 2026
Page 1 of 14
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Insiders at RAPID7 INC
Mohamed WaelGalligan Kevin G.Jana Partners Management, LpHolzman BenjaminBurns MikeBruner JudyKalowski JeffreyBerry Michael J