TransMedics Group, Inc.

TMDX

Form 4 • Statement of Changes in Beneficial Ownership

SEC Accession Number: 0001193125-26-092241
Filing date: Mar 4, 2026
Earliest execution date: Mar 2, 2026
Reporting Owners: Hernandez Gerardo (CFO)

Summary

Type

Sell

Net shares

-7,611

% of shares

-14.73%

Amount (USD)

$1,117,381

Insider confidence score

37.5 out of 100

Positive

  • Tax withholding obligation

Negative

  • Large tax withholding sell (≥1% of shares)
  • Very large sell amount ($1M+)

Stock transactions

Transaction 1

Security

Common Stock

Action

Sell

Date

2026-03-02

Code

S

Net shares

-375.0

Price per Share

$139.12

Amount (USD)

$52,170.00

Acquired/Disposed

Disposed

Shares Owned Before

15,064.0

Shares Owned After

14,689.0

Transaction 2

Security

Common Stock

Action

Exercise

Date

2026-03-04

Code

M

Net shares

+1,324.0

Price per Share

$77.12

Amount (USD)

$102,106.88

Acquired/Disposed

Acquired

Shares Owned Before

14,689.0

Shares Owned After

16,013.0

Transaction 3

Security

Common Stock

Action

Sell

Date

2026-03-04

Code

S

Net shares

-1,324.0

Price per Share

$147.21

Amount (USD)

$194,906.04

Acquired/Disposed

Disposed

Shares Owned Before

16,013.0

Shares Owned After

14,689.0

Transaction 4

Security

Common Stock

Action

Exercise

Date

2026-03-04

Code

M

Net shares

+5,912.0

Price per Share

$69.84

Amount (USD)

$412,894.08

Acquired/Disposed

Acquired

Shares Owned Before

14,689.0

Shares Owned After

20,601.0

Transaction 5

Security

Common Stock

Action

Sell

Date

2026-03-04

Code

S

Net shares

-5,912.0

Price per Share

$147.21

Amount (USD)

$870,305.52

Acquired/Disposed

Disposed

Shares Owned Before

20,601.0

Shares Owned After

14,689.0

Derivative Transactions

Transaction 1

Security

Stock Option (Right to Buy)

Action

Exercise

Date

2026-03-04

Code

M

Net shares

-1,324.0

Acquired/Disposed

Disposed

Shares Owned Before

5,299.0

Shares Owned After

3,975.0

Transaction 2

Security

Stock Option (Right to Buy)

Action

Exercise

Date

2026-03-04

Code

M

Net shares

-5,912.0

Acquired/Disposed

Disposed

Shares Owned Before

18,922.0

Shares Owned After

13,010.0

Filing's footnotes

1. Required number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units. This sale was made to satisfy tax withholding obligations through a "sell to cover" transaction pursuant to the terms of the RSU award.

2. The price reported is a weighted average price. These shares were purchased in multiple transactions ranging from $147.14 to $147.47, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range.

3. The option vests at a rate of 2.0833% of the total number of shares subject to the option each month following February 24, 2025 until the option is fully vested on February 24, 2029, subject to continued service.

4. The option vested as to 25% of the shares underlying the option on December 2, 2025 and will continue to vest as to the remaining shares in equal monthly installments over three years thereafter, subject to continued service.

This page is for informational purposes only. While we strive for accuracy, the summary may contain inaccuracies or omissions. Please refer to the official SEC filing for authoritative information. Open the SEC filing.