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Equibles

Portolan Capital Management, LLC

Position in TENB — Tenable Holdings, Inc.

CIK 1350290 BOSTON, MA
Back to TENB Full portfolio

Position in TENB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$14,306,600
+$2,985,713 QoQ
Shares Held
387,923
+98.0% QoQ
Ownership
0.352%
of shares outstanding
% of Portfolio
0.54%
of 13F equity value
Holder Rank
#46
of 312 holders
Holding Since
Mar 2022
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TENB Over Time

Shares Held

Position Value (USD)

Position in Software - Infrastructure

Technology · as of Jun 30, 2026

Portolan Capital Management, LLC holds $345,186,039 across 13 Software - Infrastructure names. TENB ranks #10 (4.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 QLYS
Qualys, Inc.
 529,807 $72,843,164
2 FOUR
Shift4 Payments, Inc.
 1,114,116 $54,190,602
3 AKAM
Akamai Technologies Inc
 310,361 $36,687,773
4 ZETA
Zeta Global Holdings Corp.
 1,502,738 $29,573,883
5 CLBT
Cellebrite DI Ltd.
 1,932,514 $28,214,704
6 BAND
Bandwidth Inc.
 412,701 $26,123,973
7 TWLO
Twilio Inc
 115,397 $23,809,863
8 RELY
Remitly Global, Inc.
 1,017,592 $22,804,236

All Filings in TENB

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,306,600 387,923
2022-03-31 $11,320,887 195,897