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Who owns TransMedics Group (TMDX) stock

362 funds reported TransMedics Group (TMDX) shares in their latest 13F filings, worth $2.7B in all. The largest holder is Vanguard Group ($439M). Last quarter 177 funds added to their stakes and 205 cut them.

Largest holders of TMDX (13F)Largest holders of TMDX (13F)Vanguard Group$439MBlackRock$372MFMR LLC$341MVanguard Portfolio Management LLC$128MVanguard Capital Management LLC$99.5MState Street$94.3MNomura Asset Management Internati…$60.5MGeode Capital Management, LLC$59.5MHood River Capital Management LLC$49.9MDimensional Fund Advisors LP$40.5M

Largest holders (13F)

FundSharesValueChangeQuarter
Vanguard Group3,605,279$439Mdecrease2025-12-31
BlackRock5,596,549$372Mincrease2026-06-30
FMR LLC5,133,328$341Mincrease2026-06-30
Vanguard Portfolio Management LLC1,933,989$128Mincrease2026-06-30
Vanguard Capital Management LLC1,497,600$99.5Mincrease2026-06-30
State Street1,420,421$94.3Mincrease2026-06-30
Nomura Asset Management International910,495$60.5Mincrease2026-06-30
Geode Capital Management, LLC894,913$59.5Mincrease2026-06-30
Hood River Capital Management LLC751,133$49.9Mincrease2026-06-30
Dimensional Fund Advisors LP610,107$40.5Mincrease2026-06-30
Goldman Sachs Group559,771$37.2Mdecrease2026-06-30
Citadel Advisors LLC558,824$37.1Mincrease2026-06-30
Eventide Asset Management, LLC548,874$36.5Mincrease2026-06-30
Wellington Management Group LLP515,973$34.3Mincrease2026-06-30
Emerald Advisers, LLC490,491$32.6Mincrease2026-06-30

TransMedics Group's latest quarter

TransMedics Group, Q3 2026: revenue $203M (+41% year over year), operating margin 13.9%, net earnings $17.1M, operating cash flow $36.0M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most TMDX stock?

By the latest 13F filings: Vanguard Group ($439M); BlackRock ($372M); FMR LLC ($341M); Vanguard Portfolio Management LLC ($128M); Vanguard Capital Management LLC ($99.5M).

What is the short interest in TMDX?

8,769,040 shares were sold short at the 2026-10-15 settlement, 2.54% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.