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 |
|---|---|---|---|---|---|
| Hancock Whitney Corp | 5,841 | $388.0K | 0.01% | +5,841 | New |
| Keebeck Wealth Management, LLC | 5,820 | $386.6K | 0.04% | +645+12.5% | Added |
| Gilder Gagnon Howe & Co LLC | 5,782 | $384.0K | 0.00% | −348−5.7% | Reduced |
| Investment Research Partners LLC | 5,765 | $382.9K | 0.13% | +1,413+32.5% | Added |
| Pictet Asset Management Holding SA | 5,266 | $349.8K | 0.00% | 00.0% | Unchanged |
| Plan A Wealth LLC | 5,167 | $343.2K | 0.15% | +1,308+33.9% | Added |
| RB Capital Management, LLC | 5,081 | $337.5K | 0.07% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 5,078 | $337.3K | 0.00% | −59−1.1% | Reduced |
| HighTower Advisors, LLC | 5,068 | $336.6K | 0.00% | −7,451−59.5% | Reduced |
| Maryland State Retirement & Pension System | 5,056 | $335.8K | 0.01% | +84+1.7% | Added |
| Inceptionr LLC | 5,015 | $333.1K | 0.08% | +5,015 | New |
| SG Americas Securities, LLC | 4,918 | $327.0K | 0.00% | −1,992−28.8% | Reduced |
| ProShare Advisors LLC | 4,898 | $325.3K | 0.00% | −507−9.4% | Reduced |
| Regency Capital Management Inc. | 4,841 | $321.5K | 0.13% | −17,005−77.8% | Reduced |
| Kestra Advisory Services, LLC | 4,688 | $311.4K | 0.00% | −584−11.1% | Reduced |
| IFP Advisors, Inc | 4,652 | $309.0K | 0.01% | +213+4.8% | Added |
| Foundations Investment Advisors, LLC | 4,643 | $308.4K | 0.00% | +1,286+38.3% | Added |
| SLT Holdings LLC | 4,499 | $298.8K | 0.19% | +1,275+39.5% | Added |
| Tower Research Capital LLC (TRC) | 4,422 | $293.7K | 0.01% | +2,030+84.9% | Added |
| Financial Engines Advisors L.L.C. | 4,416 | $293.3K | 0.00% | +11+0.2% | Added |
| Wealthfront Advisers LLC | 4,401 | $292.3K | 0.00% | +4,401 | New |
| 180 Wealth Advisors, LLC | 4,157 | $276.1K | 0.03% | +4,157 | New |
| Alps Advisors Inc | 4,031 | $267.7K | 0.00% | +20+0.5% | Added |
| Mutual of America Capital Management LLC | 3,958 | $262.9K | 0.00% | +47+1.2% | Added |
| Janney Montgomery Scott LLC | 3,942 | $262.0K | 0.00% | −1,513−27.7% | Reduced |
| Alliance Wealth Advisors, LLC | 3,923 | $260.6K | 0.05% | +3,923 | New |
| Aigen Investment Management, LP | 3,821 | $253.8K | 0.07% | +1,627+74.2% | Added |
| Centiva Capital, LP | 3,786 | $251.5K | 0.01% | −1,888−33.3% | Reduced |
| Miracle Mile Advisors, LLC | 3,674 | $244.0K | 0.00% | +3,674 | New |
| Americana Partners, LLC | 3,670 | $243.8K | 0.01% | +3,670 | New |
| Global Assets Advisory, LLC | 3,480 | $240.3K | 0.05% | +1,610+86.1% | Added |
| Portside Wealth Group, LLC | 3,599 | $239.0K | 0.03% | +3,599 | New |
| Public Employees Retirement Association of Colorado | 3,539 | $235.0K | 0.00% | 00.0% | Unchanged |
| Freestone Grove Partners LP | 3,537 | $234.9K | 0.00% | +3,537 | New |
| Fiduciary Alliance LLC | 3,413 | $226.7K | 0.02% | +1,397+69.3% | 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 |
| Xponance, Inc. | 3,401 | $225.9K | 0.00% | +240+7.6% | Added |
| JustInvest LLC | 3,311 | $219.9K | 0.00% | −18−0.5% | Reduced |
| IHT Wealth Management, LLC | 3,244 | $215.5K | 0.00% | +851+35.6% | Added |
| Van Eck Associates Corp | 3,241 | $215.3K | 0.00% | +1,169+56.4% | Added |
| Abel Hall, LLC | 3,203 | $212.7K | 0.04% | +3,203 | New |
| SBI Securities Co., Ltd. | 3,166 | $210.3K | 0.00% | −121−3.7% | Reduced |
| Ameritas Investment Partners, Inc. | 3,115 | $206.9K | 0.01% | +337+12.1% | Added |
| Advisors Asset Management, Inc. | 3,015 | $200.3K | 0.00% | +933+44.8% | Added |
| Generali Investments, Management Co LLC | 2,996 | $199.0K | 0.04% | −1,618−35.1% | Reduced |
| Cerity Partners LLC | 2,917 | $193.7K | 0.00% | +2,917 | New |
| The PNC Financial Services Group, Inc. | 2,655 | $176.3K | 0.00% | −999−27.3% | Reduced |
| Hager Investment Management Services, LLC | 2,603 | $172.9K | 0.08% | −1,186−31.3% | Reduced |
| Allworth Financial LP | 2,520 | $167.4K | 0.00% | +55+2.2% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 2,429 | $162.2K | 0.00% | −3,282−57.5% | Reduced |
| Bleichroeder LP | 2,100 | $139.5K | 0.02% | 00.0% | Unchanged |
| Carmel Capital Partners, LLC | 2,000 | $132.8K | 0.04% | +2,000 | New |
| Covestor Ltd | 1,725 | $115.0K | 0.07% | +1,199+227.9% | Added |
| Nykredit A/S | 1,719 | $114.2K | 0.00% | +1,719 | New |
| New Age Alpha Advisors, LLC | 1,694 | $112.5K | 0.00% | −64−3.6% | Reduced |
| GAMMA Investing LLC | 1,686 | $112.0K | 0.00% | −220−11.5% | Reduced |
| Rockefeller Capital Management L.P. | 1,553 | $103.2K | 0.00% | −229−12.9% | Reduced |
| Pacer Advisors, Inc. | 1,280 | $85.0K | 0.00% | −1,111−46.5% | Reduced |
| Flputnam Investment Management Co | 1,155 | $76.7K | 0.00% | +1,155 | New |
| Optiver Holding B.V. | 1,040 | $69.1K | 0.00% | +1,040 | New |
| Financial Perspectives, Inc | 1,000 | $66.4K | 0.02% | +1,000 | New |
| Vestcor Inc | 1,000 | $66.0K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 988 | $65.7K | 0.00% | −2,365−70.5% | Reduced |
| Leonteq Securities AG | 987 | $65.6K | 0.00% | +977+9,770.0% | Added |
| Persistent Asset Partners Ltd | 829 | $55.1K | 0.02% | +829 | New |
| Smartleaf Asset Management LLC | 771 | $51.9K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 734 | $48.8K | 0.00% | +734 | New |
| Pinnacle Wealth Planning Services, Inc. | 700 | $46.5K | 0.00% | −70−9.1% | Reduced |
| Harbour Investments, Inc. | 674 | $44.8K | 0.00% | +592+722.0% | Added |
| Eurizon Capital SGR S.p.A. | 655 | $44.1K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 555 | $36.8K | 0.00% | −26−4.5% | Reduced |
| Central Trust Co | 550 | $36.5K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 503 | $35.8K | 0.00% | +78+18.4% | Added |
| Hantz Financial Services, Inc. | 529 | $35.0K | 0.00% | −341−39.2% | Reduced |
| Exchange Traded Concepts, LLC | 515 | $34.2K | 0.00% | −18−3.4% | Reduced |
| Ancora Advisors, LLC | 500 | $33.2K | 0.00% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 488 | $32.4K | 0.00% | −86−15.0% | Reduced |
| State of Wyoming | 472 | $31.4K | 0.00% | −391−45.3% | Reduced |
| Adirondack Trust Co | 460 | $30.6K | 0.01% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 449 | $29.8K | 0.00% | +359+398.9% | Added |
| Signaturefd, LLC | 436 | $29.0K | 0.00% | −49−10.1% | Reduced |
| Toth Financial Advisory Corp | 400 | $26.6K | 0.00% | 00.0% | Unchanged |
| Walleye Trading LLC | 394 | $26.2K | 0.00% | +394 | New |
| Silvant Capital Management LLC | 385 | $25.6K | 0.00% | +385 | New |
| EverSource Wealth Advisors, LLC | 381 | $25.3K | 0.00% | −230−37.6% | Reduced |
| Oakworth Capital, Inc. | 372 | $25.2K | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 351 | $23.8K | 0.00% | +50+16.6% | Added |
| Salomon & Ludwin, LLC | 324 | $22.0K | 0.00% | +83+34.4% | Added |
| Titan Wealth (CI) Ltd | 325 | $21.6K | 0.01% | 00.0% | Unchanged |
| Rakuten Securities, Inc. | 322 | $21.4K | 0.00% | 00.0% | Unchanged |
| North Star Investment Management Corp. | 300 | $19.9K | 0.00% | 00.0% | Unchanged |
| Newbridge Financial Services Group, Inc. | 300 | $19.9K | 0.00% | 00.0% | Unchanged |
| LOM Asset Management Ltd | 300 | $19.9K | 0.01% | 00.0% | Unchanged |
| US Bancorp | 281 | $18.7K | 0.00% | −203−41.9% | Reduced |
| Walleye Capital LLC | 264 | $17.5K | 0.00% | −1,949−88.1% | Reduced |
| Three Bearings Fiduciary Advisors, Inc. | 250 | $16.6K | 0.01% | 00.0% | Unchanged |
| Spire Wealth Management | 248 | $16.5K | 0.00% | +248 | New |
| Kemnay Advisory Services Inc. | 241 | $16.0K | 0.00% | −13−5.1% | Reduced |
| First Horizon Corp | 240 | $15.9K | 0.00% | −189−44.1% | Reduced |