Portolan Capital Management’s Transmedics TMDX Stock Holding History

Portolan Capital Management’s Portfolio TMDX Stock Details TMDX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$5.47M	Buy	82,354 +71,666	+671%	+$6.07M	0.2%	111
2026 Q1	$1.06M	Sell	10,688 -86,205	-89%	-$11.2M	0.06%	137
2025 Q4	$11.8M	Buy	96,893 +27,983	+41%	+$3.51M	0.63%	56
2025 Q3	$7.73M	Buy	+68,910	New	+$8.07M	0.42%	70
2025 Q2	–	Sell	-47,536	Closed	-$3.2M	–	141
2025 Q1	$3.2M	Buy	+47,536	New	+$3.27M	0.24%	89
2022 Q2	–	Sell	-379,859	Closed	-$10.2M	–	158
2022 Q1	$10.2M	Buy	+379,859	New	+$6.81M	0.82%	47
2021 Q4	–	Sell	-78,106	Closed	-$2.58M	–	153
2021 Q3	$2.58M	Buy	+78,106	New	+$2.39M	0.19%	110

Other funds holding TMDX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

NAMI

Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $13.8B AUM 163.97% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Braidwell Stamford, Connecticut $2.7B AUM 88.53% 1-Year Est. Return

Portolan Capital Management's TMDX Position: Q2 2026 in Review

Portolan Capital Management increased its Transmedics (TMDX) stake by 671% in Q2 2026, buying an estimated $6.07M and bringing the position to 82,354 shares worth $5.47M. The position accounts for 0.2% of the portfolio, ranked #111.

Portolan Capital Management first reported a position in TMDX in Q3 2021 and has held it in 7 quarters since. The position peaked at $11.8M in Q4 2025. 375 funds tracked by Wall St. Rank hold TMDX as of Q2 2026.

Portolan Capital Management held 82,354 shares of Transmedics worth $5.47M as of Q2 2026.
Portolan Capital Management bought 71,666 Transmedics shares in Q2 2026, an estimated $6.07M.
Transmedics made up 0.2% of Portolan Capital Management's portfolio in Q2 2026, its #111 holding.
Portolan Capital Management first reported a position in Transmedics in Q3 2021 and has held it in 7 quarters since.
Portolan Capital Management's Transmedics position peaked at $11.8M in Q4 2025.
375 funds tracked by Wall St. Rank held Transmedics as of Q2 2026.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.