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 |
|---|---|---|---|---|---|
| Options Solutions, LLC | 0 | $0 | 0.00% | −7,072−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −5,627−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −5,257−100.0% | Sold out |
| Advisors Preferred, LLC | 0 | $0 | 0.00% | −4,748−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −3,725−100.0% | Sold out |
| Wedbush Securities Inc | 0 | $0 | 0.00% | −3,428−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −3,231−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −3,200−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −3,103−100.0% | Sold out |
| Silver Oak Securities, Inc | 0 | $0 | 0.00% | −2,828−100.0% | Sold out |
| Mach-1 Financial Group, Inc. | 0 | $0 | 0.00% | −2,502−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −2,364−100.0% | Sold out |
| Global Assets Advisory, LLC | 0 | $0 | 0.00% | −2,350−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| Caxton Associates LLP | 0 | $0 | 0.00% | −1,808−100.0% | Sold out |
| Fiduciary Alliance LLC | 0 | $0 | 0.00% | −1,807−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −1,770−100.0% | Sold out |
| 49 Wealth Management, LLC | 0 | $0 | 0.00% | −1,757−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −1,672−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −1,662−100.0% | Sold out |
| Atria Investments LLC | 0 | $0 | 0.00% | −1,592−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −1,564−100.0% | Sold out |
| Meridian Wealth Management, LLC | 0 | $0 | 0.00% | −1,502−100.0% | Sold out |
| Truefg, LLC | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Americana Partners, LLC | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −375−100.0% | Sold out |
| Mount Yale Investment Advisors, LLC | 0 | $0 | 0.00% | −360−100.0% | Sold out |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −191−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −183−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| Indiana Trust & Investment Management CO | 0 | $0 | 0.00% | −80−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Whipplewood Advisors, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Stephens Consulting, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Sierra Ocean, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| Atria Wealth Solutions, Inc. | – | – | – | – | Not filed |
| Atlas Capital Advisors LLC | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |