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TransMedics Group, Inc.

TMDX Net selling
CIK 0001756262 #1701 in the set updated 17 Sep 2026
Bought (120 mo)
$6.34M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$170.55M
$7.28M on a plan · $93.07M straight out of an exercise
Sold at will
$70.20M
85 of 410 sales
Net
−$164.21M
−$63.86M against sales at will

By person

22 insiders · 441 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Hassanein Waleed H
President & CEO
$2.98M (4)
$48.40M (96) scheduled
−$45.42M
666,102
1.92%
$54.37M
+80.5%
Khayal Tamer I
Chief Commercial Officer
—
$30.34M (127) scheduled
−$30.34M
36,042
0.1039%
$2.94M
−77.0%
ABRAMS CAPITAL MANAGEMENT, L.P. entity
10% owner
—
$28.53M (2)
−$28.53M
2,624,712
7.57%
$214.26M
—
Gordon Stephen
Chief Financial Officer
—
$16.94M (33) scheduled
−$16.94M
21,299
0.0614%
$1.74M
−78.7%
TOBIN JAMES R
Director
—
$14.29M (20)
−$14.29M
431,618
1.24%
$35.23M
−43.9%
UNITED THERAPEUTICS Corp entity
10% owner
—
$9.38M (1)
−$9.38M
2,053,240
5.92%
$167.61M
—
Basile Edward M
Director
$136.00K (1)
$6.35M (22) scheduled
−$6.21M
5,788
0.0167%
$472.47K
—
Carey John F
VP of Operations
—
$3.23M (64) scheduled
−$3.23M
14,120
0.0407%
$1.15M
+1,249%
Weill David
Director
$434.06K (3)
$3.47M (8) scheduled
−$3.03M
16,392
0.0473%
$1.34M
—
Kania Edwin
Director
$2.79M (3)
—
+$2.79M
1,186,694
3.42%
$96.87M
−38.6%
Corcoran Nicholas
See remarks
—
$2.59M (3) scheduled
−$2.59M
41,558
0.1198%
$3.39M
—
Ranganath Anil P.
See remarks
—
$1.40M (5) scheduled
−$1.40M
13,091
0.0378%
$1.07M
+6,512%
Hernandez Gerardo
Chief Financial Officer
—
$1.25M (4) scheduled
−$1.25M
31,935
0.0921%
$2.61M
—
Sullivan John F
VP of Quality & Engineering
—
$1.12M (8) scheduled
−$1.12M
14,273
0.0412%
$1.17M
−57.1%
Provost Miriam
VP, Global Regulatory Affairs
—
$1.09M (9) scheduled
−$1.09M
23,348
0.0673%
$1.91M
—
Lovell Stephanie
Director
—
$799.22K (4) scheduled
−$799.22K
5,788
0.0167%
$472.47K
—
Gunderson Thomas J.
Director
—
$722.38K (1) scheduled
−$722.38K
16,642
0.0480%
$1.36M
—
DAMME LAURA
VP, Clinical Affairs
—
$665.75K (3) scheduled
−$665.75K
5,685
0.0164%
$464.07K
—
Flagship Ventures Fund IV General Partner LLC entity
10% owner
—
—
—
2,650,870
7.64%
$216.39M
−43.0%
Cecere Giovanni
Chief Commercial Officer
—
—
—
19,057
0.0550%
$1.56M
+139.0%
Forsyth Matthew S.
See Remarks
—
—
—
15,409
0.0444%
$1.26M
—
RAINES MERILEE
Director
—
—
—
6,981
0.0201%
$569.86K
—

Individual transactions

45
Insider
Date
Role
Action
Shares
Price
Amount
Lovell Stephanie
4 Mar 2026
Director
Sell
1,193
$149.62
$178.50K
Corcoran Nicholas
2 Mar 2026
See remarks
Sell
2,966
$139.12
$412.63K
Ranganath Anil P.
2 Mar 2026
See remarks
Sell
864
$139.12
$120.20K
Hernandez Gerardo
2 Mar 2026
Chief Financial Officer
Sell
375
$139.12
$52.17K
Hernandez Gerardo
4 Dec 2025
Chief Financial Officer
Sell
920
$139.62
$128.45K
Ranganath Anil P.
9 Jun 2025
See remarks
Sell
686
$139.80
$95.90K
Weill David
23 May 2025
Director
Sell
732
$123.88
$90.68K
Khayal Tamer I
3 Mar 2025
Chief Commercial Officer
Sell
2,407
$76.43
$183.97K
TOBIN JAMES R
8 Aug 2024
Director
Sell indirect
7,336
$159.96
$1.17M
TOBIN JAMES R
8 Aug 2024
Director
Sell indirect
12,664
$158.96
$2.01M
Basile Edward M
5 Jun 2024
Director
Sell
1,193
$138.08
$164.73K
Ranganath Anil P.
5 Jun 2024
See remarks
Sell
703
$135.21
$95.05K
Weill David
29 May 2024
Director
Sell
1,193
$141.65
$168.99K
Weill David
10 May 2024
Director
Sell
2,500
$129.82
$324.55K
Corcoran Nicholas
6 May 2024
See Remarks
Sell
3,222
$129.91
$418.57K
Gordon Stephen
8 Mar 2024
Chief Financial Officer
Sell
1,903
$87.63
$166.76K
Hassanein Waleed H
1 Dec 2023
President & CEO
Sell
100
$75.28
$7.53K
Hassanein Waleed H
1 Dec 2023
President & CEO
Sell
4,475
$74.61
$333.88K
Hassanein Waleed H
1 Dec 2023
President & CEO
Sell
2,925
$74.06
$216.63K
TOBIN JAMES R
28 Nov 2023
Director
Sell indirect
10,000
$70.14
$701.40K
Hassanein Waleed H
7 Nov 2023
President & CEO
Sell
15,000
$64.32
$964.80K
Hassanein Waleed H
1 Sep 2023
President & CEO
Sell
1,082
$68.95
$74.60K
Hassanein Waleed H
1 Sep 2023
President & CEO
Sell
4,310
$68.55
$295.45K
Hassanein Waleed H
1 Sep 2023
President & CEO
Sell
2,045
$67.35
$137.73K
Hassanein Waleed H
1 Sep 2023
President & CEO
Sell
63
$65.63
$4.13K
Hassanein Waleed H
1 Aug 2023
President & CEO
Sell
2,183
$93.77
$204.70K
Hassanein Waleed H
1 Aug 2023
President & CEO
Sell
4,590
$92.90
$426.41K
Hassanein Waleed H
1 Aug 2023
President & CEO
Sell
727
$91.91
$66.82K
Hassanein Waleed H
3 Jul 2023
President & CEO
Sell
590
$83.49
$49.26K
Hassanein Waleed H
3 Jul 2023
President & CEO
Sell
4,653
$82.74
$384.99K
Hassanein Waleed H
3 Jul 2023
President & CEO
Sell
2,257
$81.77
$184.55K
Hassanein Waleed H
1 Jun 2023
President & CEO
Sell
1,954
$72.21
$141.10K
Hassanein Waleed H
1 Jun 2023
President & CEO
Sell
5,546
$71.44
$396.21K
Hassanein Waleed H
1 May 2023
President & CEO
Sell
335
$80.12
$26.84K
Hassanein Waleed H
1 May 2023
President & CEO
Sell
1,759
$78.65
$138.35K
Hassanein Waleed H
1 May 2023
President & CEO
Sell
5,406
$77.84
$420.80K
Hassanein Waleed H
3 Apr 2023
President & CEO
Sell
564
$75.73
$42.71K
Hassanein Waleed H
3 Apr 2023
President & CEO
Sell
3,577
$75.14
$268.78K
Hassanein Waleed H
3 Apr 2023
President & CEO
Sell
3,359
$74.34
$249.71K
Basile Edward M
1 Mar 2023
Director
Sell
3,500
$80.10
$280.35K
Hassanein Waleed H
1 Mar 2023
President & CEO
Sell
4,900
$81.01
$396.95K
Hassanein Waleed H
1 Mar 2023
President & CEO
Sell
2,600
$80.17
$208.44K
Basile Edward M
27 Feb 2023
Director
Sell
2,000
$79.38
$158.76K
Basile Edward M
27 Feb 2023
Director
Sell
1,500
$78.17
$117.26K
Basile Edward M
27 Feb 2023
Director
Sell
1,500
$76.20
$114.30K
Showing 250 of 441 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 328
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 6
Sales on a Rule 10b5-1 plan 21
Sales straight out of an exercise 304
Sales at will 85
Transactions with no price 0
Shares from compensation/vesting 21,466,869
Sales filed before the plan box existed 46
History held since 6 May 2019