TransMedics Group, Inc.

TMDXNASDAQ

$82.99+3.20 (+4.00%)as of Oct 5, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

TransMedics Group, Inc. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (-27.2%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	16.16%	$372M	0.01%	Not reported
FMR LLC	14.82%	$341M	0.01%	Not reported
Vanguard Portfolio Management LLC	5.58%	$128M	0.01%	Not reported
Vanguard Capital Management LLC	4.32%	$99.5M	0.00%	Not reported
State Street Corp	4.10%	$94.3M	0.00%	Not reported
Nomura Asset Management International Inc.	2.63%	$60.5M	0.09%	Add 2.78%
Geode Capital Management, LLC	2.58%	$59.5M	0.00%	Not reported
Hood River Capital Management LLC	2.17%	$49.9M	0.36%	Add 7.34%
Dimensional Fund Advisors LP	1.76%	$40.5M	0.01%	Not reported
Braidwell LP	1.76%	$40.5M	1.50%	Add 85.10%
Goldman Sachs Group Inc	1.62%	$37.2M	0.00%	Not reported
Citadel Advisors LLC	1.61%	$37.1M	0.00%	Not reported
Eventide Asset Management, LLC	1.59%	$36.5M	0.49%	Add 0.01%
Wellington Management Group LLP	1.49%	$34.3M	0.01%	Add 6.06%
Emerald Advisers, LLC	1.42%	$32.6M	0.77%	Add 43.09%
UBS Group AG	1.41%	$32.4M	0.00%	Not reported
Morgan Stanley	1.17%	$26.9M	0.00%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	1.15%	$26.5M	0.00%	Not reported
Invesco Ltd.	1.14%	$26.2M	0.00%	Not reported
Citigroup Inc	1.11%	$25.6M	0.01%	Not reported
Capital World Investors	1.11%	$25.5M	0.00%	Add 2.80%
Northern Trust Corp	1.07%	$24.5M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.95%	$21.8M	0.00%	Not reported
Wasatch Advisors LP	0.89%	$20.5M	0.13%	Reduce 10.89%
Zevenbergen Capital Investments LLC	0.89%	$20.5M	0.47%	Add 7.63%
Emerald Mutual Fund Advisers Trust	0.87%	$20.1M	0.71%	Add 31.72%
Baillie Gifford & Co	0.77%	$17.8M	0.02%	Reduce 12.21%
Wells Fargo & Company	0.75%	$17.3M	0.00%	Not reported
Bank of America Corp	0.74%	$17.1M	0.00%	Not reported
Susquehanna International Group, LLP	0.74%	$17M	0.00%	Not reported
Tidal Investments LLC	0.73%	$16.7M	0.03%	New Not reported
Millennium Management LLC	0.72%	$16.5M	0.01%	Not reported
Vanguard Fiduciary Trust Co	0.71%	$16.3M	0.00%	Not reported
Principal Financial Group Inc	0.70%	$16M	0.01%	Not reported
Barclays PLC	0.69%	$15.8M	0.00%	Not reported
Congress Asset Management Co	0.66%	$15.1M	0.09%	New Not reported
Deutsche Bank Ag\	0.63%	$14.4M	0.00%	Not reported
Bank of New York Mellon Corp	0.56%	$12.9M	0.00%	Not reported
Point72 Asset Management, L.P.	0.56%	$12.8M	0.01%	Not reported
JPMorgan Chase & Co	0.56%	$13M	0.00%	Not reported
FirstWave Capital Management LLC	0.55%	$12.7M	5.61%	Add 53.89%
Davidson Kempner Capital Management LP	0.48%	$11.1M	0.13%	Not reported
Frontier Capital Management Co LLC	0.43%	$9.97M	0.09%	Reduce 53.14%
Public Sector Pension Investment Board	0.34%	$7.89M	0.02%	Reduce 2.87%
Oppenheimer & Co Inc	0.32%	$7.36M	0.08%	Reduce 2.40%
Renaissance Group LLC	0.31%	$7.18M	0.29%	Add 15.62%
Bellevue Group AG	0.29%	$6.72M	0.14%	Not reported
Lagoda Investment Management, L.P.	0.28%	$6.47M	3.56%	Add 7.66%
BNP Paribas Financial Markets	0.28%	$6.4M	0.00%	Not reported
Trexquant Investment LP	0.27%	$6.24M	0.04%	Not reported

50 of 355 holders

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