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Portolan Capital Management, LLC

Position in UPWK — Upwork, Inc

CIK 1350290 BOSTON, MA

Position in UPWK

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$17,213,337
+$2,949,993 QoQ
Shares Held
1,570,560
+118.2% QoQ
Ownership
1.27%
of shares outstanding
% of Portfolio
0.94%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2025
4 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in UPWK Over Time

Shares Held

Position Value (USD)

Position in Internet Content & Information

Communication Services · as of Mar 31, 2026

Portolan Capital Management, LLC holds $76,275,690 across 4 Internet Content & Information names. UPWK ranks #2 (22.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 UPWK
Upwork, Inc
This page
1,570,560 $17,213,337

All Filings in UPWK

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4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $17,213,337 1,570,560
2025-12-31 $14,263,344 719,644
2025-09-30 $7,315,261 393,929
2025-03-31 $8,411,351 644,548