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 |
|---|---|---|---|---|---|
| DnB Asset Management AS | 29,691 | $3.33M | 0.01% | +19,787+199.8% | Added |
| Dark Forest Capital Management LP | 29,405 | $3.30M | 0.12% | +23,696+415.1% | Added |
| Intech Investment Management LLC | 29,027 | $3.26M | 0.03% | −5,362−15.6% | Reduced |
| New York State Teachers Retirement System | 28,803 | $3.23M | 0.01% | +1,165+4.2% | Added |
| Victory Capital Management Inc | 27,933 | $3.13M | 0.00% | +20,103+256.7% | Added |
| Verition Fund Management LLC | 27,246 | $3.06M | 0.02% | −12,660−31.7% | Reduced |
| Algert Global LLC | 26,924 | $3.02M | 0.05% | +13,740+104.2% | Added |
| Schonfeld Strategic Advisors LLC | 26,335 | $2.95M | 0.02% | +26,335 | New |
| Los Angeles Capital Management LLC | 25,932 | $2.91M | 0.01% | +13,933+116.1% | Added |
| Comerica Bank | 25,170 | $2.82M | 0.01% | +10,587+72.6% | Added |
| Thrivent Financial for Lutherans | 24,594 | $2.76M | 0.01% | −285−1.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 24,380 | $2.74M | 0.07% | −11,812−32.6% | Reduced |
| Engineers Gate Manager LP | 24,152 | $2.71M | 0.03% | −16,965−41.3% | Reduced |
| Bullseye Asset Management LLC | 24,061 | $2.70M | 1.41% | 00.0% | Unchanged |
| Zurich Insurance Group Ltd | 20,995 | $2.36M | 0.02% | +20,995 | New |
| Baird Financial Group, Inc. | 20,869 | $2.34M | 0.00% | +397+1.9% | Added |
| Taylor Frigon Capital Management LLC | 20,764 | $2.33M | 1.16% | −307−1.5% | Reduced |
| Advisor Group Holdings, Inc. | 20,242 | $2.32M | 0.00% | −874−4.1% | Reduced |
| Perigon Wealth Management, LLC | 20,609 | $2.31M | 0.05% | +1,403+7.3% | Added |
| King Luther Capital Management Corp | 20,000 | $2.24M | 0.01% | +20,000 | New |
| Creative Planning | 19,515 | $2.19M | 0.00% | +918+4.9% | Added |
| Janus Henderson Group PLC | 19,421 | $2.18M | 0.00% | +1,326+7.3% | Added |
| MetLife Investment Management | 19,358 | $2.17M | 0.01% | −406−2.1% | Reduced |
| Commonwealth Equity Services, LLC | 18,904 | $2.12M | 0.00% | +240+1.3% | Added |
| State of New Jersey Common Pension Fund D | 17,903 | $2.01M | 0.01% | +2,633+17.2% | Added |
| Brevan Howard Capital Management LP | 17,480 | $1.96M | 0.03% | +7,129+68.9% | Added |
| Kensington Investment Counsel, LLC | 17,165 | $1.93M | 0.78% | +17,165 | New |
| State of Alaska, Department of Revenue | 17,154 | $1.92M | 0.02% | −2,992−14.9% | Reduced |
| Gladstone Institutional Advisory LLC | 16,694 | $1.87M | 0.07% | +8,810+111.7% | Added |
| Cambridge Investment Research Advisors, Inc. | 16,605 | $1.86M | 0.01% | +1,477+9.8% | Added |
| Manufacturers Life Insurance Company, The | 16,360 | $1.84M | 0.00% | −34−0.2% | Reduced |
| HighTower Advisors, LLC | 16,237 | $1.82M | 0.00% | −2,909−15.2% | Reduced |
| Dana Investment Advisors, Inc. | 15,833 | $1.78M | 0.05% | +2,285+16.9% | Added |
| Louisiana State Employees Retirement System | 15,700 | $1.76M | 0.03% | −100−0.6% | Reduced |
| Franklin Resources Inc | 15,427 | $1.73M | 0.00% | +585+3.9% | Added |
| Fieldview Capital Management, LLC | 15,291 | $1.72M | 0.28% | +15,291 | New |
| D.A. Davidson & Co. | 15,251 | $1.71M | 0.01% | +2,846+22.9% | Added |
| New York State Common Retirement Fund | 15,240 | $1.71M | 0.00% | −134,406−89.8% | Reduced |
| State of Tennessee, Treasury Department | 14,912 | $1.67M | 0.01% | +626+4.4% | Added |
| HB Wealth Management, LLC | 14,478 | $1.62M | 0.01% | +2,422+20.1% | Added |
| Campbell & CO Investment Adviser LLC | 14,231 | $1.60M | 0.12% | +14,231 | New |
| Sit Investment Associates Inc | 13,380 | $1.50M | 0.03% | +6,000+81.3% | Added |
| Summit Financial, LLC | 13,300 | $1.49M | 0.02% | +13,300 | New |
| Natixis Advisors, L.P. | 13,282 | $1.49M | 0.00% | −1,533−10.3% | Reduced |
| Militia Capital Partners, LP | 13,000 | $1.46M | 0.68% | +3,000+30.0% | Added |
| Deerfield Management Company, L.P. (Series C) | 12,752 | $1.43M | 0.02% | +12,752 | New |
| Campbell Newman Asset Management Inc | 12,498 | $1.40M | 0.10% | +55+0.4% | Added |
| MML Investors Services, LLC | 11,515 | $1.29M | 0.00% | +2,917+33.9% | Added |
| Public Employees Retirement System of Ohio | 11,023 | $1.24M | 0.00% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 11,000 | $1.23M | 0.00% | +1,200+12.2% | Added |
| Yousif Capital Management, LLC | 10,838 | $1.22M | 0.01% | −2,070−16.0% | Reduced |
| Voya Investment Management LLC | 10,694 | $1.20M | 0.00% | +1,590+17.5% | Added |
| Legato Capital Management LLC | 10,565 | $1.19M | 0.13% | +3,905+58.6% | Added |
| Shelton Wealth Management, LLC | 10,436 | $1.17M | 0.55% | +10,436 | New |
| Janney Montgomery Scott LLC | 10,019 | $1.12M | 0.00% | +3,027+43.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,940 | $1.12M | 0.00% | +595+6.4% | Added |
| Fox Run Management, L.L.C. | 9,939 | $1.12M | 0.17% | +1,736+21.2% | Added |
| Amalgamated Bank | 9,827 | $1.10M | 0.01% | +241+2.5% | Added |
| Teachers Retirement System of the State of Kentucky | 9,520 | $1.07M | 0.01% | −776−7.5% | Reduced |
| Arizona State Retirement System | 9,500 | $1.07M | 0.01% | +170+1.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 9,293 | $1.04M | 0.01% | +1,769+23.5% | Added |
| Wakefield Asset Management LLLP | 8,819 | $989.5K | 0.27% | +23+0.3% | Added |
| Occudo Quantitative Strategies LP | 8,806 | $988.0K | 0.12% | +3,895+79.3% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,682 | $974.1K | 0.00% | −5−0.1% | Reduced |
| Pathstone Holdings, LLC | 8,670 | $972.8K | 0.00% | +17+0.2% | Added |
| Nisa Investment Advisors, LLC | 8,653 | $970.9K | 0.00% | −8,857−50.6% | Reduced |
| Mariner, LLC | 8,617 | $966.8K | 0.00% | −2,881−25.1% | Reduced |
| AQR Capital Management LLC | 8,597 | $964.6K | 0.00% | +3,629+73.0% | Added |
| Stifel Financial Corp | 8,568 | $961.3K | 0.00% | +76+0.9% | Added |
| Cetera Investment Advisers | 8,531 | $957.2K | 0.00% | +2,206+34.9% | Added |
| Gotham Asset Management, LLC | 8,237 | $924.2K | 0.00% | +5,078+160.7% | Added |
| State Board of Administration of Florida Retirement System | 8,217 | $921.9K | 0.00% | −31−0.4% | Reduced |
| Graham Capital Management, L.P. | 8,055 | $903.8K | 0.03% | −12,558−60.9% | Reduced |
| Quadrant Capital Group LLC | 7,683 | $862.0K | 0.03% | +71+0.9% | Added |
| XTX Topco Ltd | 7,658 | $859.2K | 0.04% | −8,040−51.2% | Reduced |
| Oregon Public Employees Retirement Fund | 7,635 | $856.6K | 0.01% | −146−1.9% | Reduced |
| Park Avenue Securities LLC | 7,559 | $848.0K | 0.01% | +4,237+127.5% | Added |
| Resources Investment Advisors, LLC. | 7,256 | $814.1K | 0.01% | +697+10.6% | Added |
| Gilder Gagnon Howe & Co LLC | 7,175 | $805.0K | 0.01% | +400+5.9% | Added |
| SG Americas Securities, LLC | 6,963 | $781.0K | 0.00% | +3,025+76.8% | Added |
| Cornerstone Wealth Management, LLC | 6,933 | $777.9K | 0.04% | −279−3.9% | Reduced |
| Catalyst Capital Advisors LLC | 6,875 | $771.4K | 0.02% | +3,725+118.3% | Added |
| Voloridge Investment Management, LLC | 6,649 | $746.0K | 0.00% | +6,649 | New |
| Kestra Advisory Services, LLC | 6,605 | $741.0K | 0.00% | +624+10.4% | Added |
| KLP Kapitalforvaltning AS | 6,600 | $740.5K | 0.00% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 6,600 | $740.5K | 0.00% | +6,600 | New |
| Wiley Bros.-Aintree Capital, LLC | 6,468 | $725.7K | 0.00% | −116−1.8% | Reduced |
| ProShare Advisors LLC | 6,423 | $720.7K | 0.00% | −1,178−15.5% | Reduced |
| Abundance Wealth Counselors | 6,177 | $693.1K | 0.12% | −149−2.4% | Reduced |
| Bryce Point Capital, LLC | 6,131 | $687.9K | 0.84% | +6,131 | New |
| Amundi | 6,023 | $686.2K | 0.00% | +497+9.0% | Added |
| Harbour Capital Advisors, LLC | 5,877 | $676.9K | 0.14% | −85−1.4% | Reduced |
| Federated Hermes, Inc. | 5,993 | $672.4K | 0.00% | +5,993 | New |
| Gsa Capital Partners LLP | 5,981 | $671.0K | 0.06% | +5,981 | New |
| Phoenix Holdings Ltd. | 5,903 | $662.7K | 0.01% | +3,872+190.6% | Added |
| Values First Advisors, Inc. | 5,838 | $655.0K | 0.35% | −288−4.7% | Reduced |
| Polen Capital Management LLC | 5,690 | $638.4K | 0.00% | −5,695−50.0% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 5,475 | $614.3K | 0.00% | +23+0.4% | Added |
| Inspire Advisors, LLC | 5,378 | $603.4K | 0.06% | +5,378 | New |
| RB Capital Management, LLC | 5,081 | $570.1K | 0.12% | +2,093+70.0% | Added |