TRANSMEDICS, INC.
TRANSMEDICS, INC. is a Public Limited Company registered in United States under 043432735, and its current status with Massachusetts Secretary of the Commonwealth is active. The company was incorporated on 2 September 1998 and lists its registered address as United States. 4 shareholders are on record for TRANSMEDICS, INC., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Massachusetts Secretary of the Commonwealth and was last updated on 18 September 2026.
Registration details
Officers
27
Directors and officers of TRANSMEDICS, INC.
The Founder, Pres, Ceo & Director of TRANSMEDICS, INC. currently on record is Waleed H. Hassanein M.d.; 15 of the 27 officer records shown for TRANSMEDICS, INC. are current appointments, filed with Massachusetts Secretary of the Commonwealth. The remaining 8 records shown (James Tobin, Travis Rhodes and 6 others) are former appointments that have since been resigned. Management authority at TRANSMEDICS, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control. The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Data availability
The register reports 33 officers in total, including past appointments, though only the 27 most relevant records are shown here.
Group Structure
Group structure of TRANSMEDICS, INC.
TRANSMEDICS, INC. sits 1 level below its ultimate parent, TRANSMEDICS GROUP, INC.. 3 subsidiaries are recorded beneath it, across 1 jurisdiction. The full chain up to TRANSMEDICS GROUP, INC. is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by TRANSMEDICS, INC.'s own shareholder record. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
- TRANSMEDICS PTY. LTD.
- TRANSMEDICS SRL
- TransMedics B.V.
Data availability
Those 3 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 3 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
TRANSMEDICS GROUP, INC.
Frequently asked questions
Who owns TRANSMEDICS, INC.?
Four shareholders are currently on record for TRANSMEDICS, INC., reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is Vanguard Group Inc, holding 12.8% — the largest recorded stake — followed by Goldman Sachs Group Inc at 2.5%; the remaining 2 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is TRANSMEDICS, INC.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for TRANSMEDICS, INC. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does TRANSMEDICS, INC. have on record?
4 shareholders are shown on record for TRANSMEDICS, INC..
What is TRANSMEDICS, INC.'s company registration number?
TRANSMEDICS, INC.'s registration number is 043432735, filed with Massachusetts Secretary of the Commonwealth in United States. Its current status on the register is active.
Is TRANSMEDICS, INC. still an active company?
TRANSMEDICS, INC.'s status on Massachusetts Secretary of the Commonwealth is listed as active.
When was TRANSMEDICS, INC. incorporated?
TRANSMEDICS, INC. was incorporated on 2 September 1998, according to Massachusetts Secretary of the Commonwealth.
What is TRANSMEDICS, INC.'s registered address?
The registered address on file for TRANSMEDICS, INC. is United States.
What legal structure is TRANSMEDICS, INC. registered as?
TRANSMEDICS, INC. is registered as a Public Limited Company in United States.
Who are the officers/directors of TRANSMEDICS, INC.?
The Founder, Pres, Ceo & Director of TRANSMEDICS, INC. currently on record is Waleed H. Hassanein M.d.; 15 of the 27 officer records shown for TRANSMEDICS, INC. are current appointments, filed with Massachusetts Secretary of the Commonwealth. The remaining 8 records shown (James Tobin, Travis Rhodes and 6 others) are former appointments that have since been resigned. Management authority at TRANSMEDICS, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does TRANSMEDICS, INC. have a parent company or subsidiaries?
TRANSMEDICS, INC. sits 1 level below its ultimate parent, TRANSMEDICS GROUP, INC.. 3 subsidiaries are recorded beneath it, across 1 jurisdiction. Those 3 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 3 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to TRANSMEDICS, INC.'s ownership over time?
This profile reflects a point-in-time snapshot from Massachusetts Secretary of the Commonwealth. Zavia's monitoring API can track changes to TRANSMEDICS, INC.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access TRANSMEDICS, INC.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like TRANSMEDICS, INC.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Massachusetts Secretary of the Commonwealth and was last synced on 18 September 2026.