13F Insight
DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
RPD 0.25 03/15/27

RAPID7 INC

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

CUSIP 753422AF1·28 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 8.9%
vs prior quarter
13F value held
$550M
64.0% inst. owned
of float
Holders
28
-7 QoQ
filers reporting
Activity
+8 / −53
+925 added · −832 reduced
this quarter
Concentration
22.04%
Lynrock Lake LP #1
top holder share
AI Holders Summary · Q1 2026

28 institutions reported RPD 0.25 03/15/27 in Q1 2026. Lynrock Lake LP leads at 22.0% of the visible book. -7 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Lynrock Lake LP
CIK 0001734341
$121M128.5M8.30%Q1 202602
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$95M100.0M1.46%Q1 202603
Opti Capital Management, LP
CIK 0001738654
$52M54.5M3.74%Q1 202604
CAPSTONE INVESTMENT ADVISORS, LLC
CIK 0001426196
$50M53.4M0.09%Q1 202605
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
CIK 0001595082
$48M51.0M0.65%Q1 202606
DeepCurrents Investment Group LLC
CIK 0001754535
$40M42.5M1.29%Q1 202607
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$34M35.5M0.01%Q1 202608
Walleye Capital LLC
CIK 0001758720
$28M30.0M0.12%Q1 202609
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$26M27.5M0.03%Q1 202610
STATE STREET CORP
CIK 0000093751
$12M13.2M0.00%Q1 202611
BlackRock, Inc.
CIK 0002012383
$9M9.7M0.00%Q1 202612
ABSOLUTE INVESTMENT ADVISERS, LLC
CIK 0001316187
$8M8.1M0.90%Q1 202613
WELLS FARGO & COMPANY/MN
CIK 0000072971
$7M7.4M0.00%Q1 202614
WATER ISLAND CAPITAL LLC
CIK 0001222765
$5M5.5M0.55%Q4 202515
KIM, LLC
CIK 0001888968
$4M4.7M0.45%Q1 202616
Chicago Capital Management, LLC
CIK 0001580162
$4M5K3.55%Q1 202617
STATE OF WISCONSIN INVESTMENT BOARD
CIK 0000854157
$3M3.0M0.01%Q1 202618
OAKTREE CAPITAL MANAGEMENT LP
CIK 0000949509
$2M1.7M0.02%Q1 202619
Russell Investments Group, Ltd.
CIK 0001692234
$715,324755K0.00%Q1 202620
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$458,602485K0.00%Q1 2026
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