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Portolan Capital Management, LLC

Position in TMDX — TransMedics Group, Inc.

CIK 1350290 BOSTON, MA

Position in TMDX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$5,469,952
+$4,407,458 QoQ
Shares Held
82,354
+670.5% QoQ
Ownership
0.238%
of shares outstanding
% of Portfolio
0.21%
of 13F equity value
Holder Rank
#54
of 368 holders
Holding Since
Sep 2021
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TMDX Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

Portolan Capital Management, LLC holds $45,549,880 across 5 Medical Devices names. TMDX ranks #4 (12.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 TMDX
TransMedics Group, Inc.
This page
82,354 $5,469,952

All Filings in TMDX

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,469,952 82,354
2026-03-31 $1,062,494 10,688
2025-12-31 $11,787,033 96,893
2025-09-30 $7,731,702 68,910
2025-03-31 $3,198,222 47,536
2022-03-31 $10,233,401 379,859
2021-09-30 $2,584,527 78,106