TransMedics Group, Inc.
TMDX- Exchange
- Nasdaq
- Industry
- Electromedical & Electrotherapeutic Apparatus
- SEC CIK
- 0001756262
In the last 90 days, TransMedics Group, Inc. insiders filed 1 open-market purchase and 0 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $2.31B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in TransMedics Group, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 375
- −38 vs. Q1 2026
- Shares held
- 34.8M
- −1.58M (−4.4%) vs. Q1 2026
- Total value
- $2.31B
- −$1.30B (−36.0%) vs. Q1 2026
- New holders
- 69
- 138 more added
- Sold out
- 107
- 125 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TMDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 375 | $2.31B |
| Q1 2026 | 416 | $3.63B |
| Q4 2025 | 429 | $4.53B |
| Q3 2025 | 388 | $4.17B |
| Q2 2025 | 368 | $4.93B |
| Q1 2025 | 298 | $2.63B |
| Q4 2024 | 315 | $2.30B |
| Q3 2024 | 374 | $5.74B |
| Q2 2024 | 340 | $5.09B |
| Q1 2024 | 262 | $2.52B |
| Q4 2023 | 249 | $2.76B |
| Q3 2023 | 222 | $1.91B |
| Q2 2023 | 240 | $2.73B |
| Q1 2023 | 225 | $2.26B |
| Q4 2022 | 200 | $1.79B |
| Q3 2022 | 178 | $1.18B |
| Q2 2022 | 135 | $719.7M |
| Q1 2022 | 110 | $561.4M |
| Q4 2021 | 121 | $384.7M |
| Q3 2021 | 120 | $636.5M |
| Q2 2021 | 124 | $623.5M |
| Q1 2021 | 107 | $773.0M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Hantz Financial Services, Inc. | 529 | $35.0K | 0.00% | −341−39.2% | Reduced |
| Whittier Trust Co of Nevada Inc | 503 | $35.8K | 0.00% | +78+18.4% | Added |
| Central Trust Co | 550 | $36.5K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 555 | $36.8K | 0.00% | −26−4.5% | Reduced |
| Eurizon Capital SGR S.p.A. | 655 | $44.1K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 674 | $44.8K | 0.00% | +592+722.0% | Added |
| Pinnacle Wealth Planning Services, Inc. | 700 | $46.5K | 0.00% | −70−9.1% | Reduced |
| Simplex Trading, LLC | 734 | $48.8K | 0.00% | +734 | New |
| Smartleaf Asset Management LLC | 771 | $51.9K | 0.00% | 00.0% | Unchanged |
| Persistent Asset Partners Ltd | 829 | $55.1K | 0.02% | +829 | New |
| Leonteq Securities AG | 987 | $65.6K | 0.00% | +977+9,770.0% | Added |
| Farther Finance Advisors, LLC | 988 | $65.7K | 0.00% | −2,365−70.5% | Reduced |
| Vestcor Inc | 1,000 | $66.0K | 0.00% | 00.0% | Unchanged |
| Financial Perspectives, Inc | 1,000 | $66.4K | 0.02% | +1,000 | New |
| Optiver Holding B.V. | 1,040 | $69.1K | 0.00% | +1,040 | New |
| Flputnam Investment Management Co | 1,155 | $76.7K | 0.00% | +1,155 | New |
| Pacer Advisors, Inc. | 1,280 | $85.0K | 0.00% | −1,111−46.5% | Reduced |
| Rockefeller Capital Management L.P. | 1,553 | $103.2K | 0.00% | −229−12.9% | Reduced |
| GAMMA Investing LLC | 1,686 | $112.0K | 0.00% | −220−11.5% | Reduced |
| New Age Alpha Advisors, LLC | 1,694 | $112.5K | 0.00% | −64−3.6% | Reduced |
| Nykredit A/S | 1,719 | $114.2K | 0.00% | +1,719 | New |
| Covestor Ltd | 1,725 | $115.0K | 0.07% | +1,199+227.9% | Added |
| Carmel Capital Partners, LLC | 2,000 | $132.8K | 0.04% | +2,000 | New |
| Bleichroeder LP | 2,100 | $139.5K | 0.02% | 00.0% | Unchanged |
| Bank Julius Baer & Co. Ltd, Zurich | 2,429 | $162.2K | 0.00% | −3,282−57.5% | Reduced |
| Allworth Financial LP | 2,520 | $167.4K | 0.00% | +55+2.2% | Added |
| Hager Investment Management Services, LLC | 2,603 | $172.9K | 0.08% | −1,186−31.3% | Reduced |
| The PNC Financial Services Group, Inc. | 2,655 | $176.3K | 0.00% | −999−27.3% | Reduced |
| Cerity Partners LLC | 2,917 | $193.7K | 0.00% | +2,917 | New |
| Generali Investments, Management Co LLC | 2,996 | $199.0K | 0.04% | −1,618−35.1% | Reduced |
| Advisors Asset Management, Inc. | 3,015 | $200.3K | 0.00% | +933+44.8% | Added |
| Ameritas Investment Partners, Inc. | 3,115 | $206.9K | 0.01% | +337+12.1% | Added |
| SBI Securities Co., Ltd. | 3,166 | $210.3K | 0.00% | −121−3.7% | Reduced |
| Abel Hall, LLC | 3,203 | $212.7K | 0.04% | +3,203 | New |
| Van Eck Associates Corp | 3,241 | $215.3K | 0.00% | +1,169+56.4% | Added |
| IHT Wealth Management, LLC | 3,244 | $215.5K | 0.00% | +851+35.6% | Added |
| JustInvest LLC | 3,311 | $219.9K | 0.00% | −18−0.5% | Reduced |
| Xponance, Inc. | 3,401 | $225.9K | 0.00% | +240+7.6% | Added |
| Optimize Financial Inc | 3,408 | $226.4K | 0.08% | −11−0.3% | Reduced |
| Sound Capital Solutions LLC | 3,408 | $226.4K | 0.05% | +3,408 | New |
| Fiduciary Alliance LLC | 3,413 | $226.7K | 0.02% | +1,397+69.3% | Added |
| Freestone Grove Partners LP | 3,537 | $234.9K | 0.00% | +3,537 | New |
| Public Employees Retirement Association of Colorado | 3,539 | $235.0K | 0.00% | 00.0% | Unchanged |
| Portside Wealth Group, LLC | 3,599 | $239.0K | 0.03% | +3,599 | New |
| Global Assets Advisory, LLC | 3,480 | $240.3K | 0.05% | +1,610+86.1% | Added |
| Americana Partners, LLC | 3,670 | $243.8K | 0.01% | +3,670 | New |
| Miracle Mile Advisors, LLC | 3,674 | $244.0K | 0.00% | +3,674 | New |
| Centiva Capital, LP | 3,786 | $251.5K | 0.01% | −1,888−33.3% | Reduced |
| Aigen Investment Management, LP | 3,821 | $253.8K | 0.07% | +1,627+74.2% | Added |
| Alliance Wealth Advisors, LLC | 3,923 | $260.6K | 0.05% | +3,923 | New |
| Janney Montgomery Scott LLC | 3,942 | $262.0K | 0.00% | −1,513−27.7% | Reduced |
| Mutual of America Capital Management LLC | 3,958 | $262.9K | 0.00% | +47+1.2% | Added |
| Alps Advisors Inc | 4,031 | $267.7K | 0.00% | +20+0.5% | Added |
| 180 Wealth Advisors, LLC | 4,157 | $276.1K | 0.03% | +4,157 | New |
| Wealthfront Advisers LLC | 4,401 | $292.3K | 0.00% | +4,401 | New |
| Financial Engines Advisors L.L.C. | 4,416 | $293.3K | 0.00% | +11+0.2% | Added |
| Tower Research Capital LLC (TRC) | 4,422 | $293.7K | 0.01% | +2,030+84.9% | Added |
| SLT Holdings LLC | 4,499 | $298.8K | 0.19% | +1,275+39.5% | Added |
| Foundations Investment Advisors, LLC | 4,643 | $308.4K | 0.00% | +1,286+38.3% | Added |
| IFP Advisors, Inc | 4,652 | $309.0K | 0.01% | +213+4.8% | Added |
| Kestra Advisory Services, LLC | 4,688 | $311.4K | 0.00% | −584−11.1% | Reduced |
| Regency Capital Management Inc. | 4,841 | $321.5K | 0.13% | −17,005−77.8% | Reduced |
| ProShare Advisors LLC | 4,898 | $325.3K | 0.00% | −507−9.4% | Reduced |
| SG Americas Securities, LLC | 4,918 | $327.0K | 0.00% | −1,992−28.8% | Reduced |
| Inceptionr LLC | 5,015 | $333.1K | 0.08% | +5,015 | New |
| Maryland State Retirement & Pension System | 5,056 | $335.8K | 0.01% | +84+1.7% | Added |
| HighTower Advisors, LLC | 5,068 | $336.6K | 0.00% | −7,451−59.5% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 5,078 | $337.3K | 0.00% | −59−1.1% | Reduced |
| RB Capital Management, LLC | 5,081 | $337.5K | 0.07% | 00.0% | Unchanged |
| Plan A Wealth LLC | 5,167 | $343.2K | 0.15% | +1,308+33.9% | Added |
| Pictet Asset Management Holding SA | 5,266 | $349.8K | 0.00% | 00.0% | Unchanged |
| Investment Research Partners LLC | 5,765 | $382.9K | 0.13% | +1,413+32.5% | Added |
| Gilder Gagnon Howe & Co LLC | 5,782 | $384.0K | 0.00% | −348−5.7% | Reduced |
| Keebeck Wealth Management, LLC | 5,820 | $386.6K | 0.04% | +645+12.5% | Added |
| Hancock Whitney Corp | 5,841 | $388.0K | 0.01% | +5,841 | New |
| Sugar Maple Asset Management, LLC | 6,000 | $398.5K | 0.26% | +3,000+100.0% | Added |
| Corsair Capital Management, L.P. | 6,000 | $398.5K | 0.05% | +6,000 | New |
| Resources Investment Advisors, LLC. | 6,020 | $399.8K | 0.00% | −1,487−19.8% | Reduced |
| Amundi | 6,026 | $400.2K | 0.00% | −871−12.6% | Reduced |
| Values First Advisors, Inc. | 6,126 | $406.9K | 0.19% | +182+3.1% | Added |
| Fox Run Management, L.L.C. | 6,173 | $410.0K | 0.07% | +6,173 | New |
| MML Investors Services, LLC | 6,180 | $410.5K | 0.00% | −2,564−29.3% | Reduced |
| Massar Capital Management, LP | 6,401 | $425.2K | 0.15% | +6,401 | New |
| Phoenix Holdings Ltd. | 6,458 | $427.7K | 0.00% | +2,087+47.7% | Added |
| Park Avenue Securities LLC | 6,437 | $428.0K | 0.00% | −3,353−34.2% | Reduced |
| Bokf, NA | 6,670 | $443.0K | 0.01% | +3,079+85.7% | Added |
| Global Retirement Partners, LLC | 6,773 | $449.9K | 0.01% | +6,773 | New |
| Allspring Global Investments Holdings, LLC | 6,655 | $451.5K | 0.00% | +190+2.9% | Added |
| First Citizens Bank & Trust Co | 6,925 | $460.0K | 0.01% | +3,570+106.4% | Added |
| Cornerstone Wealth Management, LLC | 6,947 | $461.4K | 0.02% | +1,850+36.3% | Added |
| XTX Topco Ltd | 7,013 | $465.8K | 0.01% | +881+14.4% | Added |
| CFG Wealth Management Services, Inc. | 4,689 | $466.1K | 0.44% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 7,100 | $471.6K | 0.00% | 00.0% | Unchanged |
| Keystone Global Partners, LLC | 7,200 | $478.2K | 0.18% | +7,200 | New |
| J. Safra Sarasin Holding AG | 7,238 | $480.9K | 0.01% | +7,238 | New |
| Guggenheim Capital LLC | 7,665 | $509.1K | 0.00% | +5,528+258.7% | Added |
| Envestnet Portfolio Solutions, Inc. | 7,691 | $510.8K | 0.00% | +3,352+77.3% | Added |
| Oregon Public Employees Retirement Fund | 7,848 | $521.3K | 0.01% | +64+0.8% | Added |
| Twinbeech Capital LP | 7,900 | $524.7K | 0.09% | −7,700−49.4% | Reduced |
| Jain Global LLC | 8,101 | $538.1K | 0.01% | +8,101 | New |