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

Insider buying vs selling

Have Transmedics Group Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Gerardo HernandezChief Financial Officer2025-12-04920$139.62
$128.45kSell
David WeillDirector2025-12-035,000$138.64
$693.20kSell
David WeillDirector2025-12-035,000$14.20
$71.00kBuy
Anil P. RanganathSenior Vice President General Counsel and Secretary2025-11-253,000$145.22
$435.66kSell
Anil P. RanganathSenior Vice President General Counsel and Secretary2025-11-253,000$93.88
$281.64kBuy
Waleed H. HassaneinPresident CEO2025-11-178,775$114.00
$1.00MBuy
Edward M. BasileDirector2025-10-294,142$130.45
$540.32kSell
Edward M. BasileDirector2025-10-294,142$0.70
$2.90kBuy
Waleed H. HassaneinPresident CEO2025-08-076,617$116.08
$768.10kBuy
Waleed H. HassaneinPresident CEO2025-08-071,858$116.85
$217.11kBuy

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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 Inc15.60%5,331,598$727.82MInstitution
Fmr LLC14.82%5,064,370$691.34MInstitution
Vanguard Group Inc10.55%3,605,607$492.20MInstitution
Flagship Ventures Fund IV General Partner LLC7.76%2,650,870$361.87MInsider
Abrams Capital Management LP7.68%2,624,712$358.30MInsider
United Therapeutics Corp6.01%2,053,240$280.29MInsider
Edwin M. Kania Jr.4.65%1,590,807$217.16MInsider
State Street Corp3.74%1,279,541$174.67MInstitution
Ubs Am A Distinct Business Unit Of Ubs Asset Management Americas LLC3.13%1,069,492$146.00MInstitution
Macquarie Group Ltd2.65%906,268$123.71MInstitution

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TMDX vs Medical Device Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TMDX78.92%21.08%Net BuyingNet Buying
INSP64.61%35.39%Net SellingNet Selling
IRTC84.64%15.36%Net SellingNet Selling
LIVN90.84%9.16%Net SellingNet Selling
ATEC23.75%76.25%Net SellingNet Selling

Transmedics Group Stock Ownership FAQ

Who owns Transmedics Group?

Transmedics Group (NASDAQ: TMDX) is owned by 108.64% institutional shareholders, 29.02% 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 7.76% of the company. Flagship Ventures Fund IV General Partner LLC's Transmedics Group shares are currently valued at $361.87M.

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