TMDXNasdaqElectromedical & Electrotherapeutic ApparatusFiscal year ends December 31
TransMedics Group, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026
$71.60+0.82 (+1.16%)
Close on Oct 19, 2026
- Market cap
- $2.91B
- P/E (TTM)
- 18.6
- Dividend yield
- 0.00%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
35M of 35M shares
Institutional holders
374
68 new, 106 sold out
Net institutional buying
-2M
In Q2 2026
Insider trades, 12 months
2 buys · 12 sales
Net sold $3.76M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Abigail P. Johnson | 5,058,396 | 15.00% | 13G (passive) amendment | Mar 31, 2025 |
| BlackRock, Inc. | 4,955,262 | 14.60% | 13G (passive) amendment | Jun 30, 2025 |
| Vanguard Portfolio Management | 1,949,420 | 5.68% | 13G (passive) | Mar 31, 2026 |
| Vanguard Capital Management | 1,737,137 | 5.06% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of TMDX | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,596,549 | 16.14% | $371.72M | +303,218 | 0.01% |
| FMR LLC | 5,133,328 | 14.80% | $340.96M | +37,085 | 0.01% |
| Vanguard Portfolio Management LLC | 1,933,989 | 5.58% | $128.46M | +14,454 | 0.01% |
| Vanguard Capital Management LLC | 1,497,600 | 4.32% | $99.47M | +19,448 | 0.00% |
| State Street Corp | 1,420,421 | 4.10% | $94.34M | +100,942 | 0.00% |
| Nomura Asset Management International Inc. | 910,495 | 2.63% | $60.48M | +24,654 | 0.09% |
| Geode Capital Management, LLC | 894,913 | 2.58% | $59.45M | +55,758 | 0.00% |
| Hood River Capital Management LLC | 751,133 | 2.17% | $49.89M | +51,363 | 0.36% |
| Dimensional Fund Advisors LP | 610,107 | 1.76% | $40.53M | +93,428 | 0.01% |
| Braidwell LP | 609,715 | 1.76% | $40.50M | +280,324 | 1.50% |
| Goldman Sachs Group Inc | 559,771 | 1.61% | $37.18M | −306,511 | 0.00% |
| Citadel Advisors LLC | 558,824 | 1.61% | $37.12M | +497,223 | 0.00% |
| Eventide Asset Management, LLC | 548,874 | 1.58% | $36.46M | +50 | 0.49% |
| Wellington Management Group Llp | 515,973 | 1.49% | $34.27M | +29,500 | 0.01% |
| Emerald Advisers, LLC | 490,491 | 1.41% | $32.58M | +147,700 | 0.77% |
| UBS Group AG | 488,058 | 1.41% | $32.42M | −92,735 | 0.00% |
| Morgan Stanley | 405,112 | 1.17% | $26.91M | −289,038 | 0.00% |
| UBS Asset Management Americas Inc | 398,250 | 1.15% | $26.45M | −541,273 | 0.00% |
| Invesco Ltd. | 394,979 | 1.14% | $26.23M | −642,995 | 0.00% |
| Citigroup Inc | 386,066 | 1.11% | $25.64M | +28,685 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 374 | 35M | 100.0% | 68 / 140 | 123 / 106 | 4M | 6M |
| Q1 2026 | 416 | 37M | 100.0% | 67 / 149 | 137 / 71 | 7M | 4M |
| Q4 2025 | 429 | 37M | 100.0% | 90 / 156 | 127 / 45 | 4M | 4M |
| Q3 2025 | 388 | 38M | 100.0% | 75 / 153 | 119 / 51 | 5M | 4M |
| Q2 2025 | 368 | 37M | 100.0% | 104 / 116 | 114 / 32 | 4M | 6M |
| Q1 2025 | 299 | 39M | 100.0% | 52 / 122 | 90 / 64 | 8M | 8M |
| Q4 2024 | 315 | 39M | 100.0% | 74 / 130 | 85 / 125 | 11M | 9M |
| Q3 2024 | 374 | 37M | 100.0% | 77 / 135 | 123 / 41 | 11M | 6M |
| Q2 2024 | 340 | 35M | 99.9% | 107 / 97 | 116 / 27 | 6M | 6M |
| Q1 2024 | 262 | 35M | 100.0% | 51 / 93 | 81 / 34 | 4M | 5M |
| Q4 2023 | 248 | 37M | 100.0% | 49 / 81 | 89 / 21 | 5M | 4M |
| Q3 2023 | 221 | 36M | 100.0% | 34 / 96 | 67 / 52 | 7M | 6M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of TMDX | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 2,082,539 | 6.01% | $138.32M | 0.12% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 1,038,890 | 3.00% | $69.00M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 891,470 | 2.57% | $59.21M | 0.07% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 752,168 | 2.17% | $49.96M | 0.03% | Jun 30, 2026 |
| Fidelity Small Cap Growth Fund | 726,130 | 2.09% | $55.56M | 0.63% | Jul 31, 2026 |
| Nomura Small Cap Core Fund | 617,377 | 1.78% | $41.49M | 0.75% | May 29, 2026 |
| Fidelity Advisor New Insights Fund | 614,300 | 1.77% | $40.80M | 0.14% | Jun 30, 2026 |
| VIP Contrafund Portfolio | 589,600 | 1.70% | $39.16M | 0.13% | Jun 30, 2026 |
| Eventide Gilead Fund | 460,684 | 1.33% | $30.60M | 0.89% | Jun 30, 2026 |
| Vanguard Small-Cap Growth Index Fund | 434,956 | 1.25% | $28.89M | 0.06% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 397,504 | 1.15% | $26.40M | 0.03% | Jun 30, 2026 |
| VIP Mid Cap Portfolio | 383,700 | 1.11% | $25.49M | 0.27% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 375,096 | 1.08% | $28.70M | 0.08% | Jul 31, 2026 |
| SMALLCAP World Fund Inc | 374,177 | 1.08% | $24.85M | 0.03% | Jun 30, 2026 |
| Fidelity Small Cap Growth K6 Fund | 370,081 | 1.07% | $28.31M | 0.62% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Waleed H. Hassanein | President & CEO, Director | 666,102 | 1.92% | Jul 14, 2026 |
| Fernando N. Araujo | See Remarks | – | – | Sep 29, 2026 |
| Nicholas Corcoran | See remarks | 41,558 | 0.12% | Jul 14, 2026 |
| Gerardo Hernandez | Chief Financial Officer | 31,935 | 0.09% | Jul 14, 2026 |
| Matthew S. Forsyth | See Remarks | 15,409 | 0.04% | May 21, 2026 |
| Anil P. Ranganath | See remarks | 13,091 | 0.04% | Mar 4, 2026 |
| Giovanni Cecere | Chief Commercial Officer | 7,975 | 0.02% | Feb 20, 2026 |
| Tamer I. Khayal | Chief Commercial Officer | 36,042 | 0.10% | Mar 5, 2025 |
| David Weill | Director | 16,392 | 0.05% | Sep 14, 2026 |
| James R. Tobin | Director | 162,127 | 0.47% | Aug 17, 2026 |
| Thomas J. Gunderson | Director | 16,642 | 0.05% | Jun 17, 2026 |
| Edward M. Basile | Director | 5,788 | 0.02% | May 22, 2026 |
| Stephanie Lovell | Director | 5,788 | 0.02% | May 22, 2026 |
| Edwin Kania | Director | 309,874 | 0.89% | May 22, 2026 |
| Merilee Raines | Director | 6,981 | 0.02% | May 22, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| David Weill Director | Sep 11, 2026 | Buy | +1,336 | $81.63 | $109.06K | 16,392 |
| James R. Tobin Director | Aug 17, 2026 | Gift | −18,000 | – | – | 0 |
| Waleed H. Hassanein President & CEO, Director | Jul 10, 2026 | Award | +49,669 | – | – | 171,093 |
| Nicholas Corcoran See remarks | Jul 10, 2026 | Award | +11,727 | – | – | 41,558 |
| Gerardo Hernandez Chief Financial Officer | Jul 10, 2026 | Award | +17,246 | – | – | 31,935 |
| Thomas J. Gunderson Director | Jun 15, 2026 | Sale | −9,624 | $75.06 | $722.38K | 16,642 |
| Thomas J. Gunderson Director | Jun 15, 2026 | Option exercise | +19,285 | $2.21 | $42.62K | 26,266 |
| David Weill Director | May 20, 2026 | Award | +2,922 | – | – | 15,056 |
| Edwin Kania Director | May 20, 2026 | Award | +2,922 | – | – | 263,732 |
| Thomas J. Gunderson Director | May 20, 2026 | Award | +2,922 | – | – | 6,981 |
| Edward M. Basile Director | May 20, 2026 | Award | +2,922 | – | – | 5,788 |
| Stephanie Lovell Director | May 20, 2026 | Award | +2,922 | – | – | 5,788 |
| James R. Tobin Director | May 20, 2026 | Award | +2,922 | – | – | 6,981 |
| Merilee Raines Director | May 20, 2026 | Award | +2,922 | – | – | 6,981 |
| Matthew S. Forsyth See Remarks | May 19, 2026 | Award | +15,409 | – | – | 15,409 |
| Stephanie Lovell Director | Mar 4, 2026 | Sale | −1,193 | $149.62 | $178.50K | 2,866 |
| David Weill Director | Mar 4, 2026 | Option exercise | +3,571 | $14.20 | $50.71K | 15,705 |
| David Weill Director | Mar 4, 2026 | Sale | −3,571 | $146.82 | $524.29K | 12,134 |
| Gerardo Hernandez Chief Financial Officer | Mar 4, 2026 | Sale | −5,912 | $147.21 | $870.31K | 14,689 |
| Gerardo Hernandez Chief Financial Officer | Mar 4, 2026 | Option exercise | +5,912 | $69.84 | $412.89K | 20,601 |
| Gerardo Hernandez Chief Financial Officer | Mar 4, 2026 | Sale | −1,324 | $147.21 | $194.91K | 14,689 |
| Gerardo Hernandez Chief Financial Officer | Mar 4, 2026 | Option exercise | +1,324 | $77.12 | $102.11K | 16,013 |
| Anil P. Ranganath See remarks | Mar 2, 2026 | Sale | −864 | $139.12 | $120.20K | 13,091 |
| Nicholas Corcoran See remarks | Mar 2, 2026 | Sale | −2,966 | $139.12 | $412.63K | 29,831 |
| Gerardo Hernandez Chief Financial Officer | Mar 2, 2026 | Sale | −375 | $139.12 | $52.17K | 14,689 |
| Giovanni Cecere Chief Commercial Officer | Feb 18, 2026 | Award | +11,082 | – | – | 19,057 |
| Nicholas Corcoran See remarks | Jan 23, 2026 | Tax withholding | −984 | $135.30 | $133.14K | 32,797 |
| Gerardo Hernandez Chief Financial Officer | Dec 4, 2025 | Sale | −920 | $139.62 | $128.45K | 15,064 |
| David Weill Director | Dec 3, 2025 | Sale | −5,000 | $138.64 | $693.20K | 12,134 |
| David Weill Director | Dec 3, 2025 | Option exercise | +5,000 | $14.20 | $71.00K | 17,134 |
| Anil P. Ranganath See remarks | Nov 25, 2025 | Option exercise | +3,000 | $93.88 | $281.64K | 16,955 |
| Anil P. Ranganath See remarks | Nov 25, 2025 | Sale | −3,000 | $145.22 | $435.66K | 13,955 |
| Waleed H. Hassanein President & CEO, Director | Nov 17, 2025 | Buy | +8,775 | $114.00 | $1.00M | 495,009 |
| Edward M. Basile Director | Oct 29, 2025 | Sale(10b5-1 plan) | −4,142 | $130.45 | $540.32K | 2,866 |
| Edward M. Basile Director | Oct 29, 2025 | Option exercise | +4,142 | $0.70 | $2.90K | 7,008 |
| Waleed H. Hassanein President & CEO, Director | Aug 7, 2025 | Buy | +6,617 | $116.08 | $768.10K | 484,376 |
| Waleed H. Hassanein President & CEO, Director | Aug 7, 2025 | Buy | +1,858 | $116.85 | $217.11K | 486,234 |
| Waleed H. Hassanein President & CEO, Director | Aug 6, 2025 | Buy | +8,400 | $118.68 | $996.91K | 477,759 |
| Edward M. Basile Director | Aug 4, 2025 | Sale(10b5-1 plan) | −4,143 | $125.51 | $519.99K | 2,866 |
| Edward M. Basile Director | Aug 4, 2025 | Option exercise | +4,143 | $0.70 | $2.90K | 7,009 |
| Anil P. Ranganath See remarks | Jun 9, 2025 | Sale | −686 | $139.80 | $95.90K | 13,955 |
| Edward M. Basile Director | May 27, 2025 | Sale(10b5-1 plan) | −5,000 | $126.45 | $632.25K | 2,866 |
| Edward M. Basile Director | May 27, 2025 | Option exercise | +5,000 | $0.70 | $3.50K | 7,866 |
| David Weill Director | May 23, 2025 | Sale | −732 | $123.88 | $90.68K | 12,134 |
| Edwin Kania Director | May 22, 2025 | Award | +2,134 | – | – | 260,810 |
| Merilee Raines Director | May 22, 2025 | Award | +2,134 | – | – | 4,059 |
| Edward M. Basile Director | May 22, 2025 | Award | +2,134 | – | – | 2,866 |
| James R. Tobin Director | May 22, 2025 | Award | +2,134 | – | – | 4,059 |
| David Weill Director | May 22, 2025 | Award | +2,134 | – | – | 12,866 |
| Stephanie Lovell Director | May 22, 2025 | Award | +2,134 | – | – | 4,059 |
| Thomas J. Gunderson Director | May 22, 2025 | Award | +2,134 | – | – | 4,059 |
| Edward M. Basile Director | May 9, 2025 | Sale(10b5-1 plan) | −6,000 | $115.63 | $693.78K | 732 |
| Edward M. Basile Director | May 9, 2025 | Option exercise | +6,000 | $0.70 | $4.20K | 6,732 |
| Tamer I. Khayal Chief Commercial Officer | Mar 3, 2025 | Sale | −2,407 | $76.43 | $183.97K | 36,042 |
| Waleed H. Hassanein President & CEO, Director | Feb 25, 2025 | Award | +59,781 | – | – | 121,424 |
| Anil P. Ranganath See remarks | Feb 24, 2025 | Award | +5,634 | – | – | 14,641 |
| Tamer I. Khayal Chief Commercial Officer | Feb 24, 2025 | Award | +17,606 | – | – | 38,449 |
| Gerardo Hernandez Chief Financial Officer | Feb 24, 2025 | Award | +3,521 | – | – | 15,984 |
| Nicholas Corcoran See Remarks | Feb 24, 2025 | Award | +12,676 | – | – | 33,781 |
| Tamer I. Khayal Chief Commercial Officer | Jan 7, 2025 | Option exercise | +1,083 | $13.28 | $14.38K | 21,926 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Gunderson Thomas Director | Jun 15, 2026 | 9,624 | $722.40K | Jun 15, 2026 | Stock Option Exercise |
| P. Hernandez Gerardo Officer | Mar 4, 2026 | 7,236 | $1.07M | Mar 4, 2026 | Stock Option Exercise |
| Lovell Stephanie Director | Mar 4, 2026 | 1,193 | $178.49K | Mar 4, 2026 | Restricted Stock |
| Weill David Director | Mar 4, 2026 | 3,571 | $524.29K | Mar 4, 2026 | Stock Option Exercise |
| Weill David Director | Dec 3, 2025 | 5,000 | $693.21K | Dec 3, 2025 | Stock Option Exercise |
| P. Ranganath Anil Officer | Nov 25, 2025 | 3,000 | $435.67K | Nov 25, 2025 | Stock Option Exercise |
| Basile Edward Director | Oct 29, 2025 | 4,142 | $540.32K | Oct 29, 2025 | Stock Option Exercise |
| Basile Edward Director | Aug 4, 2025 | 4,143 | $519.99K | Aug 4, 2025 | Stock Option Exercise |
| Basile Edward Director | May 27, 2025 | 5,000 | $632.25K | May 27, 2025 | Stock Option Exercise |
| Weill David Director | May 23, 2025 | 732 | $90.68K | May 23, 2025 | Restricted Stock |
| Basile Edward Director | May 9, 2025 | 6,000 | $693.78K | May 9, 2025 | Stock Option Exercise |
| Stephen Gordon Officer | Mar 4, 2025 | 5,942 | $389.85K | Mar 4, 2025 | RSU |
| Basile Edward Director | Nov 5, 2024 | 6,750 | $564.01K | Nov 5, 2024 | Stock Option Exercise |
| Khayal Tamer Officer | Nov 1, 2024 | 7,625 | $625.02K | Nov 1, 2024 | Stock Option Exercise |
| Nicholas Corcoran Officer | Aug 27, 2024 | 10,000 | $1.76M | Aug 27, 2024 | STOCK OPTION EXERCISE |