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NASDAQ: TMDX
Transmedics Group Inc Stock Ownership - Who owns Transmedics Group?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Transmedics Group Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Thomas J. GundersonDirector2026-06-159,624$75.06
$722.38kSell
Thomas J. GundersonDirector2026-06-1519,285$2.21
$42.62kBuy
David WeillDirector2026-03-043,571$14.20
$50.71kBuy
Stephanie LovellDirector2026-03-041,193$149.62
$178.50kSell
Gerardo HernandezChief Financial Officer2026-03-045,912$147.21
$870.31kSell
David WeillDirector2026-03-043,571$146.82
$524.29kSell
Gerardo HernandezChief Financial Officer2026-03-041,324$147.21
$194.91kSell
Gerardo HernandezChief Financial Officer2026-03-045,912$69.84
$412.89kBuy
Gerardo HernandezChief Financial Officer2026-03-041,324$77.12
$102.11kBuy
Gerardo HernandezChief Financial Officer2026-03-02375$139.12
$52.17kSell

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Net Insider Buy/Sell (L12M) Ownership

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TMDX Shareholders

What type of owners hold Transmedics Group Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc15.32%5,293,331$417.06MInstitution
Fmr LLC14.75%5,096,243$401.53MInstitution
Flagship Ventures Fund IV General Partner LLC7.67%2,650,870$208.86MInsider
Abrams Capital Management LP7.59%2,624,712$206.80MInsider
United Therapeutics Corp5.94%2,053,240$161.77MInsider
Vanguard Portfolio Management LLC5.55%1,919,535$151.24MInstitution
Edwin M. Kania Jr.4.60%1,590,807$125.34MInsider
Vanguard Capital Management LLC4.28%1,478,152$116.46MInstitution
State Street Corp3.82%1,319,479$103.96MInstitution
Invesco Ltd3.00%1,037,974$81.78MInstitution

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TMDX vs Medical Device Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TMDX78.00%22.00%Net BuyingNet Buying
ESTA82.73%17.27%Net SellingNet Selling
AXGN64.21%35.79%Net SellingNet Selling
ITGR95.99%4.01%Net SellingNet Selling
BFLY53.22%35.39%Net SellingNet Selling
View Top Medical Device Stocks

Transmedics Group Stock Ownership FAQ

Who owns Transmedics Group?

Transmedics Group (NASDAQ: TMDX) is owned by 105.44% institutional shareholders, 29.73% Transmedics Group insiders, and 0.00% retail investors. Flagship Ventures Fund IV General Partner LLC is the largest individual Transmedics Group shareholder, owning 2.65M shares representing 7.67% of the company. Flagship Ventures Fund IV General Partner LLC's Transmedics Group shares are currently valued at $208.86M.

If you're new to stock investing, here's how to buy Transmedics Group stock.
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