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 |
|---|---|---|---|---|---|
| Franklin Resources Inc | 15,771 | $1.92M | 0.00% | +344+2.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 16,265 | $1.98M | 0.00% | +6,325+63.6% | Added |
| HighTower Advisors, LLC | 16,407 | $2.00M | 0.00% | +170+1.0% | Added |
| Gladstone Institutional Advisory LLC | 16,605 | $2.02M | 0.08% | −89−0.5% | Reduced |
| Verition Fund Management LLC | 17,100 | $2.08M | 0.01% | −10,146−37.2% | Reduced |
| State of Alaska, Department of Revenue | 17,401 | $2.12M | 0.02% | +247+1.4% | Added |
| Cambridge Investment Research Advisors, Inc. | 17,669 | $2.15M | 0.01% | +1,064+6.4% | Added |
| Y-Intercept (Hong Kong) Ltd | 17,888 | $2.18M | 0.05% | −6,492−26.6% | Reduced |
| State of New Jersey Common Pension Fund D | 18,424 | $2.24M | 0.01% | +521+2.9% | Added |
| MetLife Investment Management | 18,520 | $2.25M | 0.01% | −838−4.3% | Reduced |
| New York State Common Retirement Fund | 18,640 | $2.27M | 0.00% | +3,400+22.3% | Added |
| Intech Investment Management LLC | 18,913 | $2.30M | 0.02% | −10,114−34.8% | Reduced |
| Taylor Frigon Capital Management LLC | 19,823 | $2.41M | 1.22% | −941−4.5% | Reduced |
| King Luther Capital Management Corp | 20,000 | $2.43M | 0.01% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 20,533 | $2.50M | 0.03% | +20,533 | New |
| Perigon Wealth Management, LLC | 21,325 | $2.59M | 0.05% | +716+3.5% | Added |
| Creative Planning | 21,630 | $2.63M | 0.00% | +2,115+10.8% | Added |
| Commonwealth Equity Services, LLC | 22,491 | $2.74M | 0.00% | +3,587+19.0% | Added |
| Thrivent Financial for Lutherans | 23,483 | $2.86M | 0.01% | −1,111−4.5% | Reduced |
| Bullseye Asset Management LLC | 24,061 | $2.93M | 1.58% | 00.0% | Unchanged |
| Comerica Bank | 24,666 | $3.00M | 0.01% | −504−2.0% | Reduced |
| First Trust Advisors LP | 25,485 | $3.10M | 0.00% | −13,608−34.8% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 25,492 | $3.10M | 0.04% | +12,740+99.9% | Added |
| Virtu Financial LLC | 26,949 | $3.28M | 0.13% | +22,202+467.7% | Added |
| Victory Capital Management Inc | 27,877 | $3.39M | 0.00% | −56−0.2% | Reduced |
| Los Angeles Capital Management LLC | 25,560 | $3.47M | 0.01% | −372−1.4% | Reduced |
| Trillium Asset Management, LLC | 27,877 | $3.53M | 0.11% | −5,656−16.9% | Reduced |
| Beaconlight Capital, LLC | 29,344 | $3.57M | 2.08% | −14,874−33.6% | Reduced |
| New York State Teachers Retirement System | 29,503 | $3.59M | 0.01% | +700+2.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 29,841 | $3.63M | 0.01% | −2,627−8.1% | Reduced |
| Fred Alger Management, LLC | 30,269 | $3.68M | 0.01% | −120,472−79.9% | Reduced |
| Algert Global LLC | 30,294 | $3.69M | 0.06% | +3,370+12.5% | Added |
| Norges Bank | 30,574 | $3.72M | 0.00% | +30,574 | New |
| California State Teachers Retirement System | 30,821 | $3.75M | 0.00% | −90.0% | Reduced |
| LPL Financial LLC | 31,263 | $3.80M | 0.00% | −414−1.3% | Reduced |
| State of Wisconsin Investment Board | 31,950 | $3.89M | 0.01% | +28,880+940.7% | Added |
| Nordea Investment Management AB | 31,992 | $3.95M | 0.00% | −4,380−12.0% | Reduced |
| Bessemer Group Inc | 33,009 | $4.02M | 0.01% | +32,766+13,484.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 32,909 | $4.04M | 0.00% | −5,500−14.3% | Reduced |
| Meridiem Capital Partners LP | 36,668 | $4.46M | 0.28% | +36,668 | New |
| Gotham Asset Management, LLC | 40,872 | $4.97M | 0.02% | +32,635+396.2% | Added |
| Alliancebernstein L.P. | 42,142 | $5.13M | 0.00% | +1,353+3.3% | Added |
| Envestnet Asset Management Inc | 43,187 | $5.25M | 0.00% | −3,861−8.2% | Reduced |
| Canada Pension Plan Investment Board | 44,600 | $5.43M | 0.00% | +42,900+2,523.5% | Added |
| Parkman Healthcare Partners LLC | 45,174 | $5.50M | 0.52% | +45,174 | New |
| Federated Hermes, Inc. | 47,301 | $5.75M | 0.01% | +41,308+689.3% | Added |
| Lazard Asset Management LLC | 51,409 | $6.25M | 0.01% | −19,143−27.1% | Reduced |
| SEI Investments Co | 55,291 | $6.73M | 0.01% | +11,575+26.5% | Added |
| Lisanti Capital Growth, LLC | 56,751 | $6.90M | 1.64% | −150−0.3% | Reduced |
| Prudential Financial Inc | 57,105 | $6.95M | 0.01% | +10,834+23.4% | Added |
| Biondo Investment Advisors, LLC | 57,215 | $6.96M | 0.84% | −1,160−2.0% | Reduced |
| Bastion Asset Management Inc. | 57,596 | $7.23M | 3.99% | +12,709+28.3% | Added |
| Peregrine Capital Management LLC | 60,157 | $7.32M | 0.22% | −8,249−12.1% | Reduced |
| Royal Bank of Canada | 62,833 | $7.64M | 0.00% | −135,609−68.3% | Reduced |
| Swiss National Bank | 63,900 | $7.77M | 0.00% | +1,600+2.6% | Added |
| F/M Investments LLC | 65,539 | $7.97M | 0.30% | +8,627+15.2% | Added |
| Janus Henderson Group PLC | 71,951 | $8.75M | 0.00% | +52,530+270.5% | Added |
| Citigroup Inc | 72,044 | $8.76M | 0.01% | −4,741−6.2% | Reduced |
| FirstWave Capital Management LLC | 74,562 | $9.07M | 5.39% | +74,562 | New |
| Nuveen, LLC | 75,163 | $9.14M | 0.00% | −1,203−1.6% | Reduced |
| Renaissance Group LLC | 77,229 | $9.39M | 0.38% | +1,151+1.5% | Added |
| Ensign Peak Advisors, Inc | 80,603 | $9.81M | 0.02% | +5,972+8.0% | Added |
| Legal & General Group Plc | 85,868 | $10.4M | 0.00% | −2,292−2.6% | Reduced |
| Credit Agricole S A | 87,219 | $10.6M | 0.03% | +23,604+37.1% | Added |
| Rhumbline Advisers | 88,036 | $10.7M | 0.01% | −5,306−5.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 91,065 | $11.1M | 0.06% | +64,730+245.8% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 92,446 | $11.2M | 0.02% | +27,101+41.5% | Added |
| Trexquant Investment LP | 92,481 | $11.3M | 0.10% | +12,080+15.0% | Added |
| Man Group plc | 95,664 | $11.6M | 0.02% | −17,892−15.8% | Reduced |
| Portolan Capital Management, LLC | 96,893 | $11.8M | 0.63% | +27,983+40.6% | Added |
| Bellevue Group AG | 97,885 | $11.9M | 0.23% | −19,083−16.3% | Reduced |
| Next Century Growth Investors LLC | 98,468 | $12.0M | 0.83% | +44,118+81.2% | Added |
| Montanaro Asset Management Ltd | 101,939 | $12.4M | 3.46% | −28,647−21.9% | Reduced |
| Panagora Asset Management Inc | 102,025 | $12.4M | 0.04% | +25,725+33.7% | Added |
| Lagoda Investment Management, L.P. | 104,800 | $12.7M | 7.38% | −3,260−3.0% | Reduced |
| State of Michigan Retirement System | 108,000 | $13.1M | 0.06% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 109,186 | $13.3M | 0.07% | +109,186 | New |
| Squarepoint Ops LLC | 110,496 | $13.4M | 0.03% | −22,008−16.6% | Reduced |
| Raymond James Financial Inc | 112,532 | $13.7M | 0.00% | −448−0.4% | Reduced |
| Oppenheimer & Co Inc | 116,566 | $14.2M | 0.20% | +4,926+4.4% | Added |
| Public Sector Pension Investment Board | 118,256 | $14.4M | 0.05% | −14,716−11.1% | Reduced |
| Bank of Montreal | 124,186 | $15.1M | 0.01% | +19,069+18.1% | Added |
| Ameriprise Financial Inc | 124,339 | $15.1M | 0.00% | +9,549+8.3% | Added |
| Blair William & Co | 135,889 | $16.5M | 0.04% | +78,446+136.6% | Added |
| Citadel Advisors LLC | 143,247 | $17.4M | 0.01% | +18,330+14.7% | Added |
| Brown Capital Management LLC | 145,918 | $17.8M | 1.46% | −167,937−53.5% | Reduced |
| Davidson Kempner Capital Management LP | 146,400 | $17.8M | 0.26% | 00.0% | Unchanged |
| Millennium Management LLC | 149,031 | $18.1M | 0.01% | +100,217+205.3% | Added |
| Deutsche Bank AG | 164,573 | $20.0M | 0.01% | −8,050−4.7% | Reduced |
| ArrowMark Colorado Holdings LLC | 186,979 | $22.7M | 0.50% | −126,146−40.3% | Reduced |
| Marshall Wace, LLP | 190,470 | $23.2M | 0.02% | −351,208−64.8% | Reduced |
| Principal Financial Group Inc | 193,777 | $23.6M | 0.01% | −48,262−19.9% | Reduced |
| Barclays PLC | 199,705 | $24.3M | 0.01% | −2,153−1.1% | Reduced |
| BNP Paribas Arbitrage, SA | 209,529 | $25.5M | 0.02% | −541−0.3% | Reduced |
| Lord, Abbett & Co. LLC | 216,873 | $26.4M | 0.08% | +83,459+62.6% | Added |
| Bank of New York Mellon Corp | 218,596 | $26.6M | 0.00% | +6,799+3.2% | Added |
| Capital World Investors | 227,441 | $27.7M | 0.00% | 00.0% | Unchanged |
| Emerald Mutual Fund Advisers Trust | 229,901 | $28.0M | 1.36% | −8,537−3.6% | Reduced |
| Royce & Associates LP | 243,149 | $29.6M | 0.30% | 00.0% | Unchanged |
| Wells Fargo & Company | 258,550 | $31.5M | 0.01% | +33,769+15.0% | Added |