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, Q4 2025
Institutional positions in TransMedics Group, Inc. as of Dec 31, 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
- 429
- +45 vs. Q3 2025
- Shares held
- 37.2M
- +139.4K (+0.4%) vs. Q3 2025
- Total value
- $4.53B
- +$368.2M (+8.9%) vs. Q3 2025
- New holders
- 90
- 156 more added
- Sold out
- 45
- 127 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kestra Advisory Services, LLC | 5,669 | $689.6K | 0.00% | −936−14.2% | Reduced |
| Winton Group Ltd | 5,623 | $684.0K | 0.02% | +5,623 | New |
| Janney Montgomery Scott LLC | 5,538 | $674.0K | 0.00% | −4,481−44.7% | Reduced |
| Amundi | 5,257 | $639.5K | 0.00% | −766−12.7% | Reduced |
| Cornerstone Wealth Management, LLC | 5,116 | $622.4K | 0.03% | −1,817−26.2% | Reduced |
| RB Capital Management, LLC | 5,081 | $618.1K | 0.13% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 5,036 | $612.6K | 0.01% | +5,036 | New |
| Maryland State Retirement & Pension System | 5,015 | $610.1K | 0.01% | +114+2.3% | Added |
| Prosperity Wealth Management, Inc. | 4,870 | $592.4K | 0.20% | +4,870 | New |
| Pictet Asset Management Holding SA | 4,858 | $591.0K | 0.00% | +382+8.5% | Added |
| AQR Capital Management LLC | 4,808 | $584.9K | 0.00% | −3,789−44.1% | Reduced |
| Envestnet Portfolio Solutions, Inc. | 4,702 | $572.0K | 0.00% | +207+4.6% | Added |
| Keebeck Wealth Management, LLC | 4,603 | $560.0K | 0.06% | +1,768+62.4% | Added |
| Intrust Bank NA | 4,556 | $554.2K | 0.05% | −49−1.1% | Reduced |
| Financial Engines Advisors L.L.C. | 4,362 | $530.6K | 0.00% | +48+1.1% | Added |
| IFP Advisors, Inc | 4,270 | $519.4K | 0.01% | −451−9.6% | Reduced |
| Quest Partners LLC | 4,202 | $511.2K | 0.03% | +2,652+171.1% | Added |
| Group One Trading, L.P. | 4,191 | $509.8K | 0.02% | +4,191 | New |
| Foundations Investment Advisors, LLC | 4,182 | $508.7K | 0.01% | +1,575+60.4% | Added |
| Optimize Financial Inc | 4,119 | $501.1K | 0.25% | +56+1.4% | Added |
| SLT Holdings LLC | 4,099 | $498.6K | 0.33% | +1,575+62.4% | Added |
| Alps Advisors Inc | 4,014 | $488.3K | 0.00% | +34+0.9% | Added |
| Investment Research Partners LLC | 3,966 | $482.5K | 0.21% | +18+0.5% | Added |
| Virtue Asset Management LLC | 3,940 | $479.3K | 0.38% | +62+1.6% | Added |
| Mutual of America Capital Management LLC | 3,906 | $475.2K | 0.00% | +87+2.3% | Added |
| Tower Research Capital LLC (TRC) | 3,752 | $456.4K | 0.01% | +2,215+144.1% | Added |
| Entropy Technologies, LP | 3,742 | $455.2K | 0.02% | +3,742 | New |
| Versor Investments LP | 3,712 | $451.6K | 0.07% | +552+17.5% | Added |
| Inspire Advisors, LLC | 3,706 | $450.9K | 0.04% | −1,672−31.1% | Reduced |
| The PNC Financial Services Group, Inc. | 3,647 | $443.7K | 0.00% | +8+0.2% | Added |
| Plan A Wealth LLC | 3,576 | $435.0K | 0.21% | +199+5.9% | Added |
| First Citizens Bank & Trust Co | 3,569 | $434.2K | 0.01% | +21+0.6% | Added |
| Public Employees Retirement Association of Colorado | 3,539 | $431.0K | 0.00% | 00.0% | Unchanged |
| Headlands Technologies LLC | 3,537 | $430.3K | 0.04% | +556+18.7% | Added |
| Yorktown Management & Research Co Inc | 3,500 | $425.8K | 0.34% | 00.0% | Unchanged |
| Hager Investment Management Services, LLC | 3,456 | $420.4K | 0.23% | +435+14.4% | Added |
| Eddie Patel Inc | 3,406 | $414.3K | 0.31% | +3,406 | New |
| Jump Financial, LLC | 3,400 | $413.6K | 0.01% | −123,632−97.3% | Reduced |
| Massachusetts Financial Services Co | 3,316 | $403.4K | 0.00% | +3,316 | New |
| SBI Securities Co., Ltd. | 3,307 | $402.3K | 0.01% | −1,344−28.9% | Reduced |
| Summit Global Investments | 3,260 | $397.0K | 0.02% | +112+3.6% | Added |
| Sava Infond d.o.o. | 3,100 | $377.1K | 0.05% | +1,200+63.2% | Added |
| CI Private Wealth, LLC | 3,084 | $375.2K | 0.00% | +757+32.5% | Added |
| Sugar Maple Asset Management, LLC | 3,000 | $364.9K | 0.25% | 00.0% | Unchanged |
| Swiss Life Asset Management Ltd | 2,998 | $364.7K | 0.00% | +2,998 | New |
| M&T Bank Corp | 2,962 | $360.7K | 0.00% | +775+35.4% | Added |
| Capstone Investment Advisors, LLC | 2,943 | $358.0K | 0.00% | +599+25.6% | Added |
| Phoenix Holdings Ltd. | 2,891 | $351.4K | 0.00% | −3,012−51.0% | Reduced |
| CSS LLC | 2,880 | $350.4K | 0.02% | +2,880 | New |
| Generali Investments, Management Co LLC | 2,878 | $350.1K | 0.07% | +1,669+138.0% | Added |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 2,796 | $340.1K | 0.13% | +2,129+319.2% | Added |
| Ameritas Investment Partners, Inc. | 2,778 | $337.9K | 0.01% | 00.0% | Unchanged |
| Catalytic Wealth RIA, LLC | 2,771 | $337.1K | 0.01% | −1,023−27.0% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 2,502 | $331.9K | 0.00% | −100−3.8% | Reduced |
| Quantinno Capital Management LP | 2,705 | $329.1K | 0.00% | +2,705 | New |
| Neuberger Berman Group LLC | 2,691 | $327.4K | 0.00% | +362+15.5% | Added |
| Blueshift Asset Management, LLC | 2,691 | $327.4K | 0.09% | +2,691 | New |
| Xponance, Inc. | 2,647 | $322.0K | 0.00% | +35+1.3% | Added |
| Annis Gardner Whiting Capital Advisors, LLC | 2,636 | $320.7K | 0.06% | +1,090+70.5% | Added |
| Occudo Quantitative Strategies LP | 2,577 | $313.5K | 0.02% | −6,229−70.7% | Reduced |
| CenterBook Partners LP | 2,552 | $310.5K | 0.02% | +2,552 | New |
| NBC Securities, Inc. | 2,507 | $305.0K | 0.02% | +1,024+69.0% | Added |
| Truefg, LLC | 2,500 | $304.1K | 0.08% | +2,500 | New |
| Truist Financial Corp | 2,476 | $301.2K | 0.00% | +21+0.9% | Added |
| Dynamic Technology Lab Private Ltd | 2,472 | $301.0K | 0.07% | −459−15.7% | Reduced |
| Jones Financial Companies LLLP | 2,386 | $290.3K | 0.00% | −27−1.1% | Reduced |
| Evergreen Capital Management LLC | 2,356 | $286.6K | 0.01% | −320−12.0% | Reduced |
| JustInvest LLC | 2,336 | $284.2K | 0.00% | +181+8.4% | Added |
| Crossmark Global Holdings, Inc. | 2,275 | $276.8K | 0.00% | +88+4.0% | Added |
| Spire Wealth Management | 2,236 | $272.0K | 0.01% | −2,792−55.5% | Reduced |
| Gsa Capital Partners LLP | 2,233 | $272.0K | 0.02% | −3,748−62.7% | Reduced |
| Integrity Investment Advisors, LLC | 2,230 | $271.3K | 0.15% | −1,192−34.8% | Reduced |
| CIBC World Markets Corp | 2,222 | $270.3K | 0.00% | +2,222 | New |
| Total Clarity Wealth Management, Inc. | 2,210 | $268.8K | 0.06% | −113−4.9% | Reduced |
| O'Shaughnessy Asset Management, LLC | 2,207 | $268.5K | 0.00% | +35+1.6% | Added |
| Guidance Capital, Inc | 1,906 | $263.2K | 0.06% | +19+1.0% | Added |
| Two Sigma Securities, LLC | 2,123 | $258.3K | 0.04% | +2,123 | New |
| Bleichroeder LP | 2,100 | $255.5K | 0.04% | +2,100 | New |
| Mackenzie Financial Corp | 2,086 | $253.8K | 0.00% | 00.0% | Unchanged |
| Havemeyer Place LP | 2,077 | $252.7K | 0.05% | +2,077 | New |
| Prelude Capital Management, LLC | 2,045 | $248.8K | 0.02% | +2,045 | New |
| CAPROCK Group, Inc. | 2,017 | $245.4K | 0.01% | +2,017 | New |
| Stansberry Asset Management, LLC | 2,016 | $245.2K | 0.02% | +2,016 | New |
| Venturi Wealth Management, LLC | 1,973 | $240.0K | 0.01% | 00.0% | Unchanged |
| GAMMA Investing LLC | 1,891 | $230.0K | 0.01% | +45+2.4% | Added |
| Indivisible Partners | 1,891 | $230.0K | 0.02% | +1,891 | New |
| Opal Capital LLC | 1,677 | $228.6K | 0.06% | +1,677 | New |
| Moors & Cabot, Inc. | 1,866 | $227.0K | 0.01% | 00.0% | Unchanged |
| STRS Ohio | 1,800 | $219.0K | 0.00% | 00.0% | Unchanged |
| New Age Alpha Advisors, LLC | 1,800 | $219.0K | 0.01% | +4+0.2% | Added |
| Van Eck Associates Corp | 1,784 | $217.0K | 0.00% | +538+43.2% | Added |
| Merit Financial Group, LLC | 1,767 | $215.0K | 0.00% | +1,767 | New |
| Advisory Services Network, LLC | 1,765 | $214.7K | 0.00% | −677−27.7% | Reduced |
| Mangrove Partners | 1,764 | $214.6K | 0.02% | +1,764 | New |
| Coldstream Capital Management Inc | 1,747 | $212.5K | 0.00% | +1,747 | New |
| Vontobel Holding Ltd. | 1,744 | $212.2K | 0.00% | +1,744 | New |
| EP Wealth Advisors, LLC | 1,728 | $210.2K | 0.00% | +1,728 | New |
| Brookstone Capital Management | 1,718 | $209.0K | 0.00% | +1,718 | New |
| Sanctuary Advisors, LLC | 1,694 | $206.1K | 0.00% | +1,694 | New |
| Captrust Financial Advisors | 1,680 | $204.3K | 0.00% | −185−9.9% | Reduced |