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, Q3 2025
Institutional positions in TransMedics Group, Inc. as of Sep 30, 2025. 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
- 388
- +25 vs. Q2 2025
- Shares held
- 37.1M
- +406.6K (+1.1%) vs. Q2 2025
- Total value
- $4.17B
- −$753.0M (−15.3%) vs. Q2 2025
- New holders
- 75
- 152 more added
- Sold out
- 50
- 120 more reduced
5 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Walleye Trading LLC | 1,278 | $143.4K | 0.00% | +1,278 | New |
| NBC Securities, Inc. | 1,483 | $166.4K | 0.01% | −785−34.6% | Reduced |
| Tower Research Capital LLC (TRC) | 1,537 | $172.5K | 0.00% | −2,053−57.2% | Reduced |
| Annis Gardner Whiting Capital Advisors, LLC | 1,546 | $173.5K | 0.04% | +1,516+5,053.3% | Added |
| Quest Partners LLC | 1,550 | $173.9K | 0.01% | −400−20.5% | Reduced |
| Canada Pension Plan Investment Board | 1,700 | $190.7K | 0.00% | −1,900−52.8% | Reduced |
| New Age Alpha Advisors, LLC | 1,796 | $201.5K | 0.01% | −30−1.6% | Reduced |
| STRS Ohio | 1,800 | $202.0K | 0.00% | −800−30.8% | Reduced |
| Verus Capital Partners, LLC | 1,815 | $203.6K | 0.02% | +161+9.7% | Added |
| GAMMA Investing LLC | 1,846 | $207.1K | 0.01% | −36−1.9% | Reduced |
| Captrust Financial Advisors | 1,865 | $209.2K | 0.00% | +31+1.7% | Added |
| Moors & Cabot, Inc. | 1,866 | $209.4K | 0.01% | +1,866 | New |
| Sava Infond d.o.o. | 1,900 | $213.2K | 0.03% | −100−5.0% | Reduced |
| Cerity Partners LLC | 1,925 | $216.0K | 0.00% | −130−6.3% | Reduced |
| Venturi Wealth Management, LLC | 1,973 | $221.4K | 0.01% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 2,086 | $234.0K | 0.00% | 00.0% | Unchanged |
| ZWJ Investment Counsel Inc | 2,100 | $235.6K | 0.01% | +2,100 | New |
| Simplex Trading, LLC | 2,151 | $241.0K | 0.01% | −13,998−86.7% | Reduced |
| JustInvest LLC | 2,155 | $241.8K | 0.00% | +20+0.9% | Added |
| O'Shaughnessy Asset Management, LLC | 2,172 | $243.7K | 0.00% | +2,172 | New |
| Crossmark Global Holdings, Inc. | 2,187 | $245.4K | 0.00% | −282−11.4% | Reduced |
| M&T Bank Corp | 2,187 | $245.8K | 0.00% | +630+40.5% | Added |
| Guidance Capital, Inc | 1,887 | $246.3K | 0.06% | +1,887 | New |
| Rockefeller Capital Management L.P. | 2,242 | $251.6K | 0.00% | +2,242 | New |
| Marex Group plc | 2,261 | $253.7K | 0.00% | +2,261 | New |
| Total Clarity Wealth Management, Inc. | 2,323 | $260.6K | 0.07% | −556−19.3% | Reduced |
| CI Private Wealth, LLC | 2,327 | $261.1K | 0.00% | +36+1.6% | Added |
| Neuberger Berman Group LLC | 2,329 | $261.3K | 0.00% | −243−9.4% | Reduced |
| Capstone Investment Advisors, LLC | 2,344 | $263.0K | 0.00% | +2,344 | New |
| Guggenheim Capital LLC | 2,396 | $268.8K | 0.00% | +112+4.9% | Added |
| Advisory Services Network, LLC | 2,442 | $274.0K | 0.00% | +2,442 | New |
| Jones Financial Companies LLLP | 2,413 | $274.8K | 0.00% | +21+0.9% | Added |
| Truist Financial Corp | 2,455 | $275.5K | 0.00% | +2,455 | New |
| SLT Holdings LLC | 2,524 | $283.2K | 0.19% | +31+1.2% | Added |
| Inceptionr LLC | 2,552 | $286.3K | 0.07% | +2,552 | New |
| Foundations Investment Advisors, LLC | 2,607 | $292.5K | 0.00% | +44+1.7% | Added |
| Xponance, Inc. | 2,612 | $293.1K | 0.00% | +30+1.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 2,602 | $299.7K | 0.00% | +865+49.8% | Added |
| Sandhill Capital Partners LLC | 2,674 | $300.0K | 0.02% | −953−26.3% | Reduced |
| Evergreen Capital Management LLC | 2,676 | $300.2K | 0.01% | +415+18.4% | Added |
| Ameritas Investment Partners, Inc. | 2,778 | $311.7K | 0.01% | −616−18.1% | Reduced |
| Bayesian Capital Management, LP | 2,800 | $314.2K | 0.06% | −3,400−54.8% | Reduced |
| Keebeck Wealth Management, LLC | 2,835 | $318.1K | 0.04% | +2,835 | New |
| HighPoint Advisor Group LLC | 2,867 | $321.7K | 0.02% | +1,075+60.0% | Added |
| Dynamic Technology Lab Private Ltd | 2,931 | $329.0K | 0.06% | +2,931 | New |
| Headlands Technologies LLC | 2,981 | $334.5K | 0.03% | +2,981 | New |
| Benjamin Edwards Inc | 2,986 | $335.0K | 0.00% | +2,986 | New |
| Sugar Maple Asset Management, LLC | 3,000 | $336.6K | 0.24% | −1,000−25.0% | Reduced |
| Hager Investment Management Services, LLC | 3,021 | $339.0K | 0.18% | +1,057+53.8% | Added |
| State of Wisconsin Investment Board | 3,070 | $344.5K | 0.00% | +29+1.0% | Added |
| Summit Global Investments | 3,148 | $353.0K | 0.02% | +3,148 | New |
| Versor Investments LP | 3,160 | $354.6K | 0.07% | +3,160 | New |
| Plan A Wealth LLC | 3,377 | $378.9K | 0.19% | +445+15.2% | Added |
| Integrity Investment Advisors, LLC | 3,422 | $383.9K | 0.25% | 00.0% | Unchanged |
| Sapient Capital LLC | 3,458 | $389.5K | 0.01% | +200+6.1% | Added |
| Quadrature Capital Ltd | 3,499 | $392.5K | 0.00% | −5,408−60.7% | Reduced |
| Yorktown Management & Research Co Inc | 3,500 | $392.7K | 0.31% | +3,500 | New |
| Public Employees Retirement Association of Colorado | 3,539 | $397.0K | 0.00% | −19−0.5% | Reduced |
| CIBC Bancorp USA Inc. | 3,544 | $397.6K | 0.00% | +3,544 | New |
| First Citizens Bank & Trust Co | 3,548 | $398.1K | 0.01% | −177−4.8% | Reduced |
| The PNC Financial Services Group, Inc. | 3,639 | $408.3K | 0.00% | +604+19.9% | Added |
| Aigen Investment Management, LP | 3,658 | $410.4K | 0.06% | +3,658 | New |
| Pitcairn Co | 3,661 | $410.8K | 0.03% | −1,151−23.9% | Reduced |
| Catalytic Wealth RIA, LLC | 3,794 | $425.7K | 0.01% | +1,023+36.9% | Added |
| Mutual of America Capital Management LLC | 3,819 | $428.5K | 0.00% | −527−12.1% | Reduced |
| PharVision Advisers, LLC | 3,841 | $431.0K | 0.24% | +1,871+95.0% | Added |
| Quantbot Technologies LP | 3,863 | $433.4K | 0.01% | +3,863 | New |
| Virtue Asset Management LLC | 3,878 | $435.1K | 0.36% | +3,878 | New |
| Alps Advisors Inc | 3,980 | $446.6K | 0.00% | +3,980 | New |
| Optimize Financial Inc | 4,063 | $455.9K | 0.24% | +4,063 | New |
| Tudor Investment Corp Et Al | 4,138 | $464.3K | 0.00% | −119,578−96.7% | Reduced |
| Teacher Retirement System of Texas | 4,219 | $473.4K | 0.00% | −648−13.3% | Reduced |
| Allspring Global Investments Holdings, LLC | 4,169 | $479.0K | 0.00% | +4,169 | New |
| Financial Engines Advisors L.L.C. | 4,314 | $484.0K | 0.00% | −4,673−52.0% | Reduced |
| Pictet Asset Management Holding SA | 4,476 | $502.2K | 0.00% | 00.0% | Unchanged |
| Envestnet Portfolio Solutions, Inc. | 4,495 | $504.3K | 0.00% | +324+7.8% | Added |
| Russell Investments Group, Ltd. | 4,549 | $510.4K | 0.00% | −3,352−42.4% | Reduced |
| Intrust Bank NA | 4,605 | $516.7K | 0.04% | −972−17.4% | Reduced |
| Qsemble Capital Management, LP | 4,628 | $519.3K | 0.05% | +4,628 | New |
| SBI Securities Co., Ltd. | 4,651 | $521.8K | 0.01% | −836−15.2% | Reduced |
| IFP Advisors, Inc | 4,721 | $529.7K | 0.01% | +108+2.3% | Added |
| Investment Research Partners LLC | 3,948 | $530.3K | 0.24% | +3,948 | New |
| Virtu Financial LLC | 4,747 | $533.0K | 0.03% | −8,491−64.1% | Reduced |
| Precision Wealth Strategies, LLC | 4,772 | $535.4K | 0.17% | +4,772 | New |
| Henshaw Capital LLC | 4,778 | $536.1K | 0.02% | −2,665−35.8% | Reduced |
| Maryland State Retirement & Pension System | 4,901 | $549.9K | 0.01% | −5,042−50.7% | Reduced |
| HRT Financial LP | 4,922 | $552.0K | 0.00% | +4,922 | New |
| Spire Wealth Management | 5,028 | $564.1K | 0.02% | −40−0.8% | Reduced |
| RB Capital Management, LLC | 5,081 | $570.1K | 0.12% | +2,093+70.0% | Added |
| Inspire Advisors, LLC | 5,378 | $603.4K | 0.06% | +5,378 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 5,475 | $614.3K | 0.00% | +23+0.4% | Added |
| Polen Capital Management LLC | 5,690 | $638.4K | 0.00% | −5,695−50.0% | Reduced |
| Values First Advisors, Inc. | 5,838 | $655.0K | 0.35% | −288−4.7% | Reduced |
| Phoenix Holdings Ltd. | 5,903 | $662.7K | 0.01% | +3,872+190.6% | Added |
| Gsa Capital Partners LLP | 5,981 | $671.0K | 0.06% | +5,981 | New |
| Federated Hermes, Inc. | 5,993 | $672.4K | 0.00% | +5,993 | New |
| Harbour Capital Advisors, LLC | 5,877 | $676.9K | 0.14% | −85−1.4% | Reduced |
| Amundi | 6,023 | $686.2K | 0.00% | +497+9.0% | Added |
| Bryce Point Capital, LLC | 6,131 | $687.9K | 0.84% | +6,131 | New |
| Abundance Wealth Counselors | 6,177 | $693.1K | 0.12% | −149−2.4% | Reduced |