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TMDX · Transmedics Group, Inc.

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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475

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TMDX

Name: TransMedics Group, Inc. (TMDX) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

TransMedics Group, Inc.

MEDICAL DEVICES · ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS · CIK 0001756262

SEC FILINGS☆ WATCH

INSIDER NET · 180D

-$722.4K

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

213

13F, latest reported quarter

REVENUE GROWTH

+37.1%

XBRL, annual

NET MARGIN

31.4%

CONVERSIONS · 180D

codes C/M, not in net · $42.6K priced

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$722.4K over 180 days

-$722.4K over 90 days

below 57% of Medical Devices

CONGRESS

no member of Congress has reported trading it

FUNDS

213 funds added or opened last quarter

more than 78% of Medical Devices

REVENUE

+37.1% year over year

more than 86% of Medical Devices

MARGIN

31.4% net margin

more than 99% of Medical Devices

BUYBACKS

no share repurchases reported

SHORT

no short interest reported

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

213 funds added or opened positions in the latest 13F quarter, of 379 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN -19.3%

-19.3%12M

INSIDER BUYINSIDER SELL

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

The complete filing record, in one place.

The record shows a net $722.4K sold by insiders over 180 days, 213 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

TMO PEN ROK BLFS MTD SIBN WRBY ISRG TXG DXCM EW ITRI

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, TransMedics Group, Inc. insiders sold a net $722.4K of stock across 377 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER

FILED

VALUE

Gunderson Thomas J.

Director

SELL

2026-06-15

9,624.0

$722.4K

Lovell Stephanie

Director

SELL

2026-03-04

1,193.0

$178.5K

Weill David

Director

SELL

2026-03-04

3,571.0

$524.3K

Hernandez Gerardo

Chief Financial Officer

SELL

2026-03-04

1,324.0

$194.9K

Hernandez Gerardo

Chief Financial Officer

SELL

2026-03-04

5,912.0

$870.3K

377 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 372 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

5,596,549.0 sh

$371.7M

FMR LLC

5,133,328.0 sh

$341.0M

VANGUARD PORTFOLIO MANAGEMENT LLC

1,933,989.0 sh

$128.5M

VANGUARD CAPITAL MANAGEMENT LLC

1,497,600.0 sh

$99.5M

STATE STREET CORP

1,420,421.0 sh

$94.3M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Global X HealthTech ETF

$2.0M POSITION · AS OF 2026-02-28

5.5%

F/m Emerald Life Sciences Innovation ETF

$5.0M POSITION · AS OF 2026-02-28

5.3%

Catalyst Insider Buying Fund

$532.3K POSITION · AS OF 2026-03-31

3.4%

Invesco S&P SmallCap Health Care ETF

$4.1M POSITION · AS OF 2026-02-28

3.0%

Taylor Frigon Core Growth Fund

$773.4K POSITION · AS OF 2026-02-28

2.6%

Biondo Focus Fund

$994.1K POSITION · AS OF 2026-03-31

2.3%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return · Waleed H. Hassanein, M.D.

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$10.9M

$26.2M

$2.4M

+511%

-1%

2024

$8.2M

$9.6M

$3.0M

+213%

-19%

2023

$6.8M

$12.8M

$2.5M

+297%

-18%

2022

$3.3M

$25.2M

$958.9K

+210%

-23%

2021

$7.4M

$5.2M

$1.4M

-4%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$605.5M	$441.5M	$241.6M	$93.5M
GROSS PROFIT	$362.8M	$262.1M	$154.1M	$65.3M
OPERATING INCOME	$108.6M	$37.5M	$-28.7M	$-31.4M
NET INCOME	$190.3M	$35.5M	$-25.0M	$-36.2M
EPS (DILUTED)	4.87	1.01	-0.77	-1.23
OPERATING CASH FLOW	$192.8M	$48.8M	$-13.0M	$-45.8M
CASH	—	—	$394.8M	$201.2M
LONG-TERM DEBT	—	—	—	$58.7M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE