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 2025
Institutional positions in TransMedics Group, Inc. as of Jun 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
- 368
- +73 vs. Q1 2025
- Shares held
- 36.8M
- −2.24M (−5.7%) vs. Q1 2025
- Total value
- $4.93B
- +$2.30B (+87.6%) vs. Q1 2025
- New holders
- 104
- 117 more added
- Sold out
- 31
- 113 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Frontier Capital Management Co LLC | 73,397 | $9.84M | 0.09% | −61,203−45.5% | Reduced |
| D. E. Shaw & Co., Inc. | 77,044 | $10.3M | 0.01% | +59,135+330.2% | Added |
| Nuveen, LLC | 77,316 | $10.4M | 0.00% | −10,780−12.2% | Reduced |
| Legal & General Group Plc | 92,524 | $12.4M | 0.00% | −149−0.2% | Reduced |
| Rhumbline Advisers | 93,217 | $12.5M | 0.01% | +3,693+4.1% | Added |
| Ensign Peak Advisors, Inc | 97,781 | $13.1M | 0.02% | −9,837−9.1% | Reduced |
| Ameriprise Financial Inc | 102,091 | $13.7M | 0.00% | +3,333+3.4% | Added |
| Davidson Kempner Capital Management LP | 103,800 | $13.9M | 0.21% | +34,600+50.0% | Added |
| Lagoda Investment Management, L.P. | 104,435 | $14.0M | 7.93% | +2,625+2.6% | Added |
| State of Michigan Retirement System | 108,000 | $14.5M | 0.07% | 00.0% | Unchanged |
| Trexquant Investment LP | 111,165 | $14.9M | 0.17% | +111,165 | New |
| Millennium Management LLC | 114,914 | $15.4M | 0.01% | +114,914 | New |
| Public Sector Pension Investment Board | 115,335 | $15.5M | 0.07% | +8,855+8.3% | Added |
| Oppenheimer & Co Inc | 117,370 | $15.7M | 0.21% | +39,368+50.5% | Added |
| Next Century Growth Investors LLC | 119,756 | $16.0M | 1.24% | +119,756 | New |
| Zevenbergen Capital Investments LLC | 121,528 | $16.3M | 0.32% | +121,528 | New |
| Tudor Investment Corp Et Al | 123,716 | $16.6M | 0.13% | +18,890+18.0% | Added |
| Montanaro Asset Management Ltd | 125,936 | $16.9M | 4.35% | −27,739−18.1% | Reduced |
| Bellevue Group AG | 130,517 | $17.5M | 0.39% | −43,193−24.9% | Reduced |
| Deutsche Bank AG | 133,000 | $17.8M | 0.01% | −35,461−21.0% | Reduced |
| Price T Rowe Associates Inc | 137,890 | $18.5M | 0.00% | +2,192+1.6% | Added |
| ExodusPoint Capital Management, LP | 139,407 | $18.7M | 0.23% | +139,407 | New |
| Lord, Abbett & Co. LLC | 140,685 | $18.9M | 0.06% | +140,685 | New |
| New York State Common Retirement Fund | 149,646 | $20.1M | 0.03% | +7,808+5.5% | Added |
| Citadel Advisors LLC | 156,441 | $21.0M | 0.02% | −453,248−74.3% | Reduced |
| Bank of Montreal | 171,258 | $23.0M | 0.01% | −6,437−3.6% | Reduced |
| Barclays PLC | 185,424 | $24.8M | 0.01% | −27,074−12.7% | Reduced |
| Principal Financial Group Inc | 188,044 | $25.2M | 0.01% | −10,383−5.2% | Reduced |
| Raymond James Financial Inc | 191,349 | $25.6M | 0.01% | +45,956+31.6% | Added |
| Wells Fargo & Company | 197,186 | $26.4M | 0.01% | −16,084−7.5% | Reduced |
| BNP Paribas Arbitrage, SA | 197,482 | $26.5M | 0.02% | +186,469+1,693.2% | Added |
| Jane Street Group, LLC | 201,173 | $27.0M | 0.04% | −11,772−5.5% | Reduced |
| ArrowMark Colorado Holdings LLC | 203,295 | $27.2M | 0.49% | +167,670+470.7% | Added |
| Bank of America Corp | 217,408 | $29.1M | 0.00% | −61,372−22.0% | Reduced |
| Wellington Management Group LLP | 221,075 | $29.6M | 0.01% | −69,541−23.9% | Reduced |
| Bank of New York Mellon Corp | 221,276 | $29.7M | 0.01% | +11,599+5.5% | Added |
| Capital World Investors | 227,441 | $30.5M | 0.00% | 00.0% | Unchanged |
| Royce & Associates LP | 247,401 | $33.2M | 0.34% | −49,799−16.8% | Reduced |
| Braidwell LP | 255,048 | $34.2M | 1.17% | −599,836−70.2% | Reduced |
| Emerald Mutual Fund Advisers Trust | 255,643 | $34.3M | 2.09% | −6,928−2.6% | Reduced |
| Baillie Gifford & Co | 262,961 | $35.2M | 0.03% | +3,284+1.3% | Added |
| Two Sigma Advisers, LP | 275,400 | $36.9M | 0.08% | +275,400 | New |
| Royal Bank of Canada | 300,669 | $40.3M | 0.01% | +274,087+1,031.1% | Added |
| Charles Schwab Investment Management Inc | 315,130 | $42.2M | 0.01% | +10,763+3.5% | Added |
| Goldman Sachs Group Inc | 317,175 | $42.5M | 0.01% | −190,335−37.5% | Reduced |
| Wasatch Advisors Inc | 335,326 | $44.9M | 0.24% | −117,959−26.0% | Reduced |
| Northern Trust Corp | 352,730 | $47.3M | 0.01% | −9,233−2.6% | Reduced |
| Dimensional Fund Advisors LP | 375,045 | $50.3M | 0.01% | +47,411+14.5% | Added |
| Two Sigma Investments, LP | 411,985 | $55.2M | 0.10% | +389,280+1,714.5% | Added |
| Emerald Advisers, LLC | 439,329 | $58.9M | 2.16% | −15,465−3.4% | Reduced |
| Brown Capital Management LLC | 451,371 | $60.5M | 1.76% | −16,752−3.6% | Reduced |
| JPMorgan Chase & Co | 464,241 | $62.2M | 0.00% | +51,744+12.5% | Added |
| UBS Group AG | 476,138 | $63.8M | 0.01% | −265,197−35.8% | Reduced |
| Invesco Ltd. | 476,686 | $63.9M | 0.01% | +32,623+7.3% | Added |
| Liontrust Investment Partners LLP | 523,748 | $70.2M | 1.00% | −30,609−5.5% | Reduced |
| Marshall Wace, LLP | 546,787 | $73.3M | 0.09% | +394,340+258.7% | Added |
| Eventide Asset Management, LLC | 547,355 | $73.3M | 1.28% | −130,626−19.3% | Reduced |
| Hood River Capital Management LLC | 679,847 | $91.1M | 1.27% | −115,924−14.6% | Reduced |
| Morgan Stanley | 732,808 | $98.2M | 0.01% | +133,748+22.3% | Added |
| Geode Capital Management, LLC | 804,650 | $107.8M | 0.01% | +11,241+1.4% | Added |
| Driehaus Capital Management LLC | 854,039 | $114.4M | 0.92% | +75,285+9.7% | Added |
| Macquarie Group Ltd | 952,105 | $127.6M | 0.16% | −163,491−14.7% | Reduced |
| UBS Asset Management Americas Inc | 955,675 | $128.1M | 0.03% | −2,157,407−69.3% | Reduced |
| FIL Ltd | 1,055,553 | $141.5M | 0.12% | −170,420−13.9% | Reduced |
| State Street Corp | 1,289,010 | $172.7M | 0.01% | −17,525−1.3% | Reduced |
| Vanguard Group Inc | 3,595,957 | $481.9M | 0.01% | +20,961+0.6% | Added |
| FMR LLC | 5,023,740 | $673.2M | 0.04% | +25,731+0.5% | Added |
| BlackRock, Inc. | 5,223,646 | $700.0M | 0.01% | −24,483−0.5% | Reduced |
| First Light Asset Management, LLC | 0 | $0 | 0.00% | −107,860−100.0% | Sold out |
| Eagle Health Investments LP | 0 | $0 | 0.00% | −100,661−100.0% | Sold out |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −47,536−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −33,290−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −24,398−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −17,300−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −17,148−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −11,469−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −9,217−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −8,357−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −7,476−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −6,425−100.0% | Sold out |
| Tempus Wealth Planning, LLC | 0 | $0 | 0.00% | −6,058−100.0% | Sold out |
| Clear Creek Financial Management, LLC | 0 | $0 | 0.00% | −5,963−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −5,150−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −5,100−100.0% | Sold out |
| Warren Averett Asset Management, LLC | 0 | $0 | 0.00% | −4,991−100.0% | Sold out |
| Bastion Asset Management Inc. | 0 | $0 | 0.00% | −4,740−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −4,827−100.0% | Sold out |
| Guidance Capital, Inc | 0 | $0 | 0.00% | −3,583−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −4,161−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −3,040−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,899−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −1,314−100.0% | Sold out |
| Boston Private Wealth LLC | 0 | $0 | 0.00% | −168−100.0% | Sold out |
| Ameriflex Group, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Sunbelt Securities, Inc. | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| High Note Wealth, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Continuum Advisory, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Credit Agricole S A | – | – | – | – | Not filed |