TMDX
TransMedics Group, Inc.
Electromedical & Electrotherapeutic ApparatusNasdaqLarge accelerated filer
Total Trades
210
Buys
2
Sells
122
Largest Trade
N/A
Insiders
13
Institutional Funds
352
Inst. Value
$1M+
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Hernandez Gerardo | CFO | EXERCISE | $500K+ | 7K | $71.17 | Mar 5, 2026 |
| Hernandez Gerardo | CFO | SELL | $1M+ | 8K | $146.81 | Mar 5, 2026 |
| Ranganath Anil P. | See remarks | SELL | $100K–$500K | 864 | $139.12 | Mar 5, 2026 |
| Corcoran Nicholas | See remarks | SELL | $100K–$500K | 3K | $139.12 | Mar 5, 2026 |
| Weill David | Director | EXERCISE | $50K–$100K | 5K | $14.20 | Dec 5, 2025 |
| Weill David | Director | SELL | $500K+ | 5K | $138.64 | Dec 5, 2025 |
| Hernandez Gerardo | CFO | SELL | $100K–$500K | 920 | $139.62 | Dec 5, 2025 |
| Ranganath Anil P. | See remarks | SELL | $100K–$500K | 3K | $145.22 | Nov 26, 2025 |
| Ranganath Anil P. | See remarks | EXERCISE | $100K–$500K | 3K | $93.88 | Nov 26, 2025 |
| Hassanein Waleed H | President & CEO | BUY | $1M+ | 9K | $114.00 | Nov 18, 2025 |
| Basile Edward M | Director | EXERCISE | $1K–$15K | 4K | $0.70 | Oct 31, 2025 |
| Basile Edward M | Director | SELL | $500K+ | 4K | $130.45 | Oct 31, 2025 |
| Ranganath Anil P. | See remarks | SELL | $50K–$100K | 686 | $139.80 | Jun 10, 2025 |
| Basile Edward M | Director | EXERCISE | $1K–$15K | 5K | $0.70 | May 29, 2025 |
| Basile Edward M | Director | SELL | $500K+ | 5K | $126.45 | May 29, 2025 |
| Weill David | Director | SELL | $50K–$100K | 732 | $123.88 | May 23, 2025 |
| Weill David | Director | GRANT | N/A | 2K | — | May 23, 2025 |
| Basile Edward M | Director | SELL | $500K+ | 6K | $115.63 | May 13, 2025 |
| Basile Edward M | Director | EXERCISE | $1K–$15K | 6K | $0.70 | May 13, 2025 |
| Khayal Tamer I | Chief Commercial O… | SELL | $50K–$100K | 1K | $80.05 | Jan 10, 2025 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $1K–$15K | 1K | $13.28 | Jan 10, 2025 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $1K–$15K | 1K | $13.28 | Dec 4, 2024 |
| Khayal Tamer I | Chief Commercial O… | SELL | $50K–$100K | 1K | $86.40 | Dec 4, 2024 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $50K–$100K | 1K | $38.46 | Nov 13, 2024 |
| Khayal Tamer I | Chief Commercial O… | SELL | $100K–$500K | 1K | $90.04 | Nov 13, 2024 |
| Basile Edward M | Director | EXERCISE | $100K–$500K | 7K | $28.12 | Nov 7, 2024 |
| Basile Edward M | Director | SELL | $500K+ | 7K | $83.55 | Nov 7, 2024 |
| Khayal Tamer I | Chief Commercial O… | SELL | $50K–$100K | 1K | $82.64 | Nov 5, 2024 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $1K–$15K | 1K | $13.28 | Nov 5, 2024 |
| Hassanein Waleed H | President & CEO | SELL | $1M+ | 9K | $132.71 | Oct 17, 2024 |
| Hassanein Waleed H | President & CEO | EXERCISE | $100K–$500K | 9K | $13.28 | Oct 17, 2024 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $50K–$100K | 3K | $33.14 | Oct 3, 2024 |
| Khayal Tamer I | Chief Commercial O… | SELL | $100K–$500K | 3K | $148.24 | Oct 3, 2024 |
| Corcoran Nicholas | See Remarks | SELL | $1M+ | 10K | $176.02 | Aug 29, 2024 |
| Corcoran Nicholas | See Remarks | EXERCISE | $500K+ | 10K | $69.83 | Aug 29, 2024 |
| Hassanein Waleed H | President & CEO | SELL | $1M+ | 45K | $173.24 | Aug 23, 2024 |
| Hassanein Waleed H | President & CEO | EXERCISE | $500K+ | 45K | $16.08 | Aug 23, 2024 |
| Hassanein Waleed H | President & CEO | EXERCISE | $100K–$500K | 9K | $13.28 | Aug 19, 2024 |
| Hassanein Waleed H | President & CEO | SELL | $1M+ | 9K | $169.73 | Aug 19, 2024 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $50K–$100K | 3K | $33.14 | Jul 3, 2024 |
| Khayal Tamer I | Chief Commercial O… | SELL | $100K–$500K | 3K | $151.40 | Jul 3, 2024 |
| Hassanein Waleed H | President & CEO | EXERCISE | $100K–$500K | 9K | $13.28 | Jun 17, 2024 |
| Hassanein Waleed H | President & CEO | SELL | $1M+ | 9K | $141.85 | Jun 17, 2024 |
| Basile Edward M | Director | SELL | $100K–$500K | 1K | $138.08 | Jun 7, 2024 |
| Gordon Stephen | CFO | SELL | $100K–$500K | 2K | $135.93 | Jun 5, 2024 |
| Gordon Stephen | CFO | EXERCISE | $50K–$100K | 2K | $38.46 | Jun 5, 2024 |
| Khayal Tamer I | Chief Commercial O… | EXERCISE | $50K–$100K | 3K | $33.13 | Jun 5, 2024 |
| Khayal Tamer I | Chief Commercial O… | SELL | $100K–$500K | 3K | $133.10 | Jun 5, 2024 |
| Gordon Stephen | CFO | EXERCISE | $500K+ | 18K | $39.15 | May 31, 2024 |
| Gordon Stephen | CFO | SELL | $1M+ | 20K | $141.40 | May 31, 2024 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 352 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 1.3M | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 832K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 707K | $1M+ | SH |
| EVENTIDE ASSET MANAGEMENT, LLC | 548K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 461K | $1M+ | SH |
| EMERALD ADVISERS, LLC | 351K | $1M+ | SH |
| WASATCH ADVISORS LP | 332K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 323K | $1M+ | SH |
| BRAIDWELL LP | 315K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 243K | $1M+ | SH |
| EMERALD MUTUAL FUND ADVISERS TRUST | 230K | $1M+ | SH |
| Capital World Investors | 227K | $1M+ | SH |
| ZEVENBERGEN CAPITAL INVESTMENTS LLC | 219K | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 211K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 210K | $1M+ | SH |
| BARCLAYS PLC | 200K | $1M+ | SH |
| PRINCIPAL FINANCIAL GROUP INC | 192K | $1M+ | SH |
| ArrowMark Colorado Holdings LLC | 187K | $1M+ | SH |
| DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | 146K | $1M+ | SH |
| BROWN CAPITAL MANAGEMENT LLC | 146K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Jul 18, 2025
14.6%
5.0M shares
SC 13G/A · May 12, 2025
15.0%
5.1M shares
SC 13G/A · Dec 6, 2024
12.9%
4.4M shares
SC 13G/A · Oct 7, 2024
15.9%
5.3M shares
SC 13G/A · Oct 7, 2024
6.6%
2.2M shares
SC 13G/A · Oct 4, 2024
10.8%
3.6M shares
SC 13G/A · Feb 14, 2024
4.7%
1.5M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
5.7%
1.9M shares
SC 13G/A · Jan 25, 2024
7.8%
2.6M shares
SC 13G/A · Feb 14, 2023
6.1%
1.9M shares
SC 13G/A · Feb 10, 2023
3.8%
1.2M shares
SC 13G/A · Feb 3, 2023
7.2%
2.3M shares
SC 13G/A · Feb 2, 2023
3.2%
1.0M shares
SC 13G/A · Feb 14, 2022
5.5%
1.5M shares
SC 13G · Feb 14, 2022
6.0%
1.7M shares
SC 13G · Feb 11, 2022
6.5%
1.8M shares