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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,395,232 | $656.3M | 0.01% | +63,634+1.2% | Added |
| FMR LLC | 5,077,036 | $617.6M | 0.03% | +12,666+0.3% | Added |
| Vanguard Group Inc | 3,605,279 | $438.6M | 0.01% | −3280.0% | Reduced |
| State Street Corp | 1,275,133 | $155.1M | 0.01% | −4,408−0.3% | Reduced |
| UBS Asset Management Americas Inc | 996,878 | $121.3M | 0.03% | −72,614−6.8% | Reduced |
| Goldman Sachs Group Inc | 965,931 | $117.5M | 0.02% | +262,353+37.3% | Added |
| Nomura Asset Management International Inc. | 832,241 | $101.2M | 0.15% | +832,241 | New |
| Geode Capital Management, LLC | 816,474 | $99.3M | 0.01% | +2,903+0.4% | Added |
| Driehaus Capital Management LLC | 712,041 | $86.6M | 0.59% | −26,117−3.5% | Reduced |
| Hood River Capital Management LLC | 690,357 | $84.0M | 0.92% | +11,920+1.8% | Added |
| Invesco Ltd. | 684,574 | $83.3M | 0.01% | +298,770+77.4% | Added |
| Morgan Stanley | 667,761 | $81.2M | 0.00% | +119,942+21.9% | Added |
| UBS Group AG | 659,296 | $80.2M | 0.02% | −196,767−23.0% | Reduced |
| Price T Rowe Associates Inc | 569,970 | $69.3M | 0.01% | +171,810+43.2% | Added |
| Eventide Asset Management, LLC | 548,267 | $66.7M | 1.04% | +971+0.2% | Added |
| Dimensional Fund Advisors LP | 489,710 | $59.6M | 0.01% | +38,717+8.6% | Added |
| Two Sigma Investments, LP | 435,969 | $53.0M | 0.08% | −199,425−31.4% | Reduced |
| Wellington Management Group LLP | 433,321 | $52.7M | 0.01% | +217,180+100.5% | Added |
| JPMorgan Chase & Co | 375,261 | $45.7M | 0.00% | −17,095−4.4% | Reduced |
| Two Sigma Advisers, LP | 362,300 | $44.1M | 0.09% | −61,000−14.4% | Reduced |
| Emerald Advisers, LLC | 351,349 | $42.7M | 1.32% | −36,239−9.3% | Reduced |
| Northern Trust Corp | 339,216 | $41.3M | 0.01% | −8,253−2.4% | Reduced |
| Wasatch Advisors Inc | 331,848 | $40.4M | 0.24% | +6,646+2.0% | Added |
| Charles Schwab Investment Management Inc | 323,026 | $39.3M | 0.01% | +2,239+0.7% | Added |
| Baillie Gifford & Co | 316,473 | $38.5M | 0.03% | +55,754+21.4% | Added |
| Braidwell LP | 315,341 | $38.4M | 1.23% | −35,907−10.2% | Reduced |
| Frontier Capital Management Co LLC | 302,760 | $36.8M | 0.39% | +83,294+38.0% | Added |
| Zevenbergen Capital Investments LLC | 280,178 | $34.1M | 0.76% | +21,655+8.4% | Added |
| Bank of America Corp | 279,303 | $34.0M | 0.00% | +63,328+29.3% | Added |
| Wells Fargo & Company | 258,550 | $31.5M | 0.01% | +33,769+15.0% | Added |
| Royce & Associates LP | 243,149 | $29.6M | 0.30% | 00.0% | Unchanged |
| Emerald Mutual Fund Advisers Trust | 229,901 | $28.0M | 1.36% | −8,537−3.6% | Reduced |
| Capital World Investors | 227,441 | $27.7M | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 218,596 | $26.6M | 0.00% | +6,799+3.2% | Added |
| Lord, Abbett & Co. LLC | 216,873 | $26.4M | 0.08% | +83,459+62.6% | Added |
| BNP Paribas Arbitrage, SA | 209,529 | $25.5M | 0.02% | −541−0.3% | Reduced |
| Barclays PLC | 199,705 | $24.3M | 0.01% | −2,153−1.1% | Reduced |
| Principal Financial Group Inc | 193,777 | $23.6M | 0.01% | −48,262−19.9% | Reduced |
| Marshall Wace, LLP | 190,470 | $23.2M | 0.02% | −351,208−64.8% | Reduced |
| ArrowMark Colorado Holdings LLC | 186,979 | $22.7M | 0.50% | −126,146−40.3% | Reduced |
| Deutsche Bank AG | 164,573 | $20.0M | 0.01% | −8,050−4.7% | Reduced |
| Millennium Management LLC | 149,031 | $18.1M | 0.01% | +100,217+205.3% | Added |
| Davidson Kempner Capital Management LP | 146,400 | $17.8M | 0.26% | 00.0% | Unchanged |
| Brown Capital Management LLC | 145,918 | $17.8M | 1.46% | −167,937−53.5% | Reduced |
| Citadel Advisors LLC | 143,247 | $17.4M | 0.01% | +18,330+14.7% | Added |
| Blair William & Co | 135,889 | $16.5M | 0.04% | +78,446+136.6% | Added |
| Ameriprise Financial Inc | 124,339 | $15.1M | 0.00% | +9,549+8.3% | Added |
| Bank of Montreal | 124,186 | $15.1M | 0.01% | +19,069+18.1% | Added |
| Public Sector Pension Investment Board | 118,256 | $14.4M | 0.05% | −14,716−11.1% | Reduced |
| Oppenheimer & Co Inc | 116,566 | $14.2M | 0.20% | +4,926+4.4% | Added |
| Raymond James Financial Inc | 112,532 | $13.7M | 0.00% | −448−0.4% | Reduced |
| Squarepoint Ops LLC | 110,496 | $13.4M | 0.03% | −22,008−16.6% | Reduced |
| Candriam Luxembourg S.C.A. | 109,186 | $13.3M | 0.07% | +109,186 | New |
| State of Michigan Retirement System | 108,000 | $13.1M | 0.06% | 00.0% | Unchanged |
| Lagoda Investment Management, L.P. | 104,800 | $12.7M | 7.38% | −3,260−3.0% | Reduced |
| Panagora Asset Management Inc | 102,025 | $12.4M | 0.04% | +25,725+33.7% | Added |
| Montanaro Asset Management Ltd | 101,939 | $12.4M | 3.46% | −28,647−21.9% | Reduced |
| Next Century Growth Investors LLC | 98,468 | $12.0M | 0.83% | +44,118+81.2% | Added |
| Bellevue Group AG | 97,885 | $11.9M | 0.23% | −19,083−16.3% | Reduced |
| Portolan Capital Management, LLC | 96,893 | $11.8M | 0.63% | +27,983+40.6% | Added |
| Man Group plc | 95,664 | $11.6M | 0.02% | −17,892−15.8% | Reduced |
| Trexquant Investment LP | 92,481 | $11.3M | 0.10% | +12,080+15.0% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 92,446 | $11.2M | 0.02% | +27,101+41.5% | Added |
| Schonfeld Strategic Advisors LLC | 91,065 | $11.1M | 0.06% | +64,730+245.8% | Added |
| Rhumbline Advisers | 88,036 | $10.7M | 0.01% | −5,306−5.7% | Reduced |
| Credit Agricole S A | 87,219 | $10.6M | 0.03% | +23,604+37.1% | Added |
| Legal & General Group Plc | 85,868 | $10.4M | 0.00% | −2,292−2.6% | Reduced |
| Ensign Peak Advisors, Inc | 80,603 | $9.81M | 0.02% | +5,972+8.0% | Added |
| Renaissance Group LLC | 77,229 | $9.39M | 0.38% | +1,151+1.5% | Added |
| Nuveen, LLC | 75,163 | $9.14M | 0.00% | −1,203−1.6% | Reduced |
| FirstWave Capital Management LLC | 74,562 | $9.07M | 5.39% | +74,562 | New |
| Citigroup Inc | 72,044 | $8.76M | 0.01% | −4,741−6.2% | Reduced |
| Janus Henderson Group PLC | 71,951 | $8.75M | 0.00% | +52,530+270.5% | Added |
| F/M Investments LLC | 65,539 | $7.97M | 0.30% | +8,627+15.2% | Added |
| Swiss National Bank | 63,900 | $7.77M | 0.00% | +1,600+2.6% | Added |
| Royal Bank of Canada | 62,833 | $7.64M | 0.00% | −135,609−68.3% | Reduced |
| Peregrine Capital Management LLC | 60,157 | $7.32M | 0.22% | −8,249−12.1% | Reduced |
| Bastion Asset Management Inc. | 57,596 | $7.23M | 3.99% | +12,709+28.3% | Added |
| Biondo Investment Advisors, LLC | 57,215 | $6.96M | 0.84% | −1,160−2.0% | Reduced |
| Prudential Financial Inc | 57,105 | $6.95M | 0.01% | +10,834+23.4% | Added |
| Lisanti Capital Growth, LLC | 56,751 | $6.90M | 1.64% | −150−0.3% | Reduced |
| SEI Investments Co | 55,291 | $6.73M | 0.01% | +11,575+26.5% | Added |
| Lazard Asset Management LLC | 51,409 | $6.25M | 0.01% | −19,143−27.1% | Reduced |
| Federated Hermes, Inc. | 47,301 | $5.75M | 0.01% | +41,308+689.3% | Added |
| Parkman Healthcare Partners LLC | 45,174 | $5.50M | 0.52% | +45,174 | New |
| Canada Pension Plan Investment Board | 44,600 | $5.43M | 0.00% | +42,900+2,523.5% | Added |
| Envestnet Asset Management Inc | 43,187 | $5.25M | 0.00% | −3,861−8.2% | Reduced |
| Alliancebernstein L.P. | 42,142 | $5.13M | 0.00% | +1,353+3.3% | Added |
| Gotham Asset Management, LLC | 40,872 | $4.97M | 0.02% | +32,635+396.2% | Added |
| Meridiem Capital Partners LP | 36,668 | $4.46M | 0.28% | +36,668 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 32,909 | $4.04M | 0.00% | −5,500−14.3% | Reduced |
| Bessemer Group Inc | 33,009 | $4.02M | 0.01% | +32,766+13,484.0% | Added |
| Nordea Investment Management AB | 31,992 | $3.95M | 0.00% | −4,380−12.0% | Reduced |
| State of Wisconsin Investment Board | 31,950 | $3.89M | 0.01% | +28,880+940.7% | Added |
| LPL Financial LLC | 31,263 | $3.80M | 0.00% | −414−1.3% | Reduced |
| California State Teachers Retirement System | 30,821 | $3.75M | 0.00% | −90.0% | Reduced |
| Norges Bank | 30,574 | $3.72M | 0.00% | +30,574 | New |
| Algert Global LLC | 30,294 | $3.69M | 0.06% | +3,370+12.5% | Added |
| Fred Alger Management, LLC | 30,269 | $3.68M | 0.01% | −120,472−79.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 29,841 | $3.63M | 0.01% | −2,627−8.1% | Reduced |