TransMedics Group, Inc. (TMDX)
Nasdaq: TMDX · Electromedical & Electrotherapeutic Apparatus · Andover, MA · filing with the SEC since 2018
Grade7.2
◀ Past 7.1● Present 7.2▶ Future 7.1
Who owns TransMedics Group, Inc.
As filed with the SECHolders of 5% or more
4
Fmr LLC holds 15% of COMMON STOCK, as its SCHEDULE 13G/A filed May 12, 2025 says.
Directors and officers
14
report now, of 22 people on the record since 2019. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Fmr LLC
SCHEDULE 13G/A · filed May 12, 2025 · COMMON STOCK · 12.9% in Dec 6, 2024
Blackrock, Inc.
SCHEDULE 13G/A · filed Jul 18, 2025 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What TMDX reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Bridge to Life Ltd
A company bought · asset acquisition · owns, named in the 10-K filed Feb 24, 2026
Summit Aviation Inc and Northside Property Group LLC
A company bought · acquisition · owns, named in the 10-K filed Feb 24, 2026
8 subsidiaries in 5 countries, from the list filed with the 10-K filed Feb 24, 2026.
Insider tradesForm 4
13sales
2purchases
0sales on a scheduled plan
7people selling
$4.7Msold, in dollars
$1.1Mbought, in dollars
Open-market trades on Form 4 from Nov 12, 2025 to Nov 12, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 12, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 36 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Weill David | director | 2 | $1.2M | 0 | 1 | $100,000 |
| Hernandez Gerardo | Chief Financial Officer | 4 | $1.2M | 0 | 0 | $0 |
| Gunderson Thomas James | director | 1 | $700,000 | 0 | 0 | $0 |
| Ranganath Anil P. | Senior Vice President, General Counsel and Secretary | 2 | $600,000 | 0 | 0 | $0 |
| Corcoran Nicholas | SVP of Supply Chain and Operations | 1 | $400,000 | 0 | 0 | $0 |
| Tobin James R | director | 2 | $400,000 | 0 | 0 | $0 |
| Lovell Stephanie | director | 1 | $200,000 | 0 | 0 | $0 |
| Hassanein Waleed H | President & CEO | 0 | $0 | 0 | 1 | $1.0M |