David Weill

CIK: 0001774270

Transaction Breakdown

Open Market Buys (P)1 (12.5%)

High conviction signal

Open Market Sales (S)3 (37.5%)

Position reduction

Option Exercises (M)2 (25.0%)

Derivative conversions

Awards (A)2 (25.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

TMDX

TransMedics Group, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (8 total)

TMDX
TransMedics Group, Inc.
Sep 11, 2026
Purchase(P)
Direct
1.3K shares at avg. $81.63$109K
TMDX
TransMedics Group, Inc.
May 20, 2026
Award(A)
Direct
2.9K shares-
TMDX
TransMedics Group, Inc.
Mar 4, 2026
Exercise(M)
Direct
3.6K shares at avg. $14.20$51K
TMDX
TransMedics Group, Inc.
Mar 4, 2026
Sale(S)
Direct
3.6K shares at avg. $146.82$524K
TMDX
TransMedics Group, Inc.
Dec 3, 2025
Exercise(M)
Direct
5K shares at avg. $14.20$71K
TMDX
TransMedics Group, Inc.
Dec 3, 2025
Sale(S)
Direct
5K shares at avg. $138.64$693K
TMDX
TransMedics Group, Inc.
May 23, 2025
Sale(S)
Direct
732 shares at avg. $123.88$91K
TMDX
TransMedics Group, Inc.
May 22, 2025
Award(A)
Direct
2.1K shares-

		Type	Shares	Price		Ownership
Sep 11, 2026	TMDX TransMedics Group, Inc.	Purchase(P)	1,336	$81.63	$109,058	Direct
May 20, 2026	TMDX TransMedics Group, Inc.	Award(A)	2,922	-	$0	Direct
Mar 4, 2026	TMDX TransMedics Group, Inc.	Exercise(M)	3,571	$14.20	$50,708	Direct
Mar 4, 2026	TMDX TransMedics Group, Inc.	Sale(S)	3,571	$146.82	$524,294	Direct
Dec 3, 2025	TMDX TransMedics Group, Inc.	Exercise(M)	5,000	$14.20	$71,000	Direct
Dec 3, 2025	TMDX TransMedics Group, Inc.	Sale(S)	5,000	$138.64	$693,200	Direct
May 23, 2025	TMDX TransMedics Group, Inc.	Sale(S)	732	$123.88	$90,680	Direct
May 22, 2025	TMDX TransMedics Group, Inc.	Award(A)	2,134	-	-	Direct

1-8 of 8 transactions

About Weill David

Weill David (SEC CIK 0001774270) files insider reports with the SEC as Director of TransMedics Group, Inc. (TMDX).

Signal8 holds 5 ownership filings by Weill David, all Form 4s, filed between May 23, 2025 and Sep 14, 2026. Those filings report 8 transactions, from May 22, 2025 to Sep 11, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Weill David's filings is in ANDOVER, MA.

Recent filings by Weill David

Sep 11, 2026: Open-market purchase of TMDX shares (Form 4, code P).
May 20, 2026: Grant or award of TMDX shares (Form 4, code A).
Mar 4, 2026: Option exercise of TMDX shares (Form 4, code M).
Mar 4, 2026: Open-market sale of TMDX shares (Form 4, code S).
Dec 3, 2025: Option exercise of TMDX shares (Form 4, code M).

Other insiders filing for TransMedics Group, Inc. (TMDX)

Araujo Fernando N.
TOBIN JAMES R, Director
Corcoran Nicholas
Hernandez Gerardo, Chief Financial Officer
Hassanein Waleed H, President & CEO
Gunderson Thomas J., Director

How to read Form 4 transaction codes