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 |
|---|---|---|---|---|---|
| ProShare Advisors LLC | 6,423 | $720.7K | 0.00% | −1,178−15.5% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 6,468 | $725.7K | 0.00% | −116−1.8% | Reduced |
| 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 |
| Kestra Advisory Services, LLC | 6,605 | $741.0K | 0.00% | +624+10.4% | Added |
| Voloridge Investment Management, LLC | 6,649 | $746.0K | 0.00% | +6,649 | New |
| Catalyst Capital Advisors LLC | 6,875 | $771.4K | 0.02% | +3,725+118.3% | Added |
| Cornerstone Wealth Management, LLC | 6,933 | $777.9K | 0.04% | −279−3.9% | Reduced |
| SG Americas Securities, LLC | 6,963 | $781.0K | 0.00% | +3,025+76.8% | Added |
| Gilder Gagnon Howe & Co LLC | 7,175 | $805.0K | 0.01% | +400+5.9% | Added |
| Resources Investment Advisors, LLC. | 7,256 | $814.1K | 0.01% | +697+10.6% | Added |
| Park Avenue Securities LLC | 7,559 | $848.0K | 0.01% | +4,237+127.5% | Added |
| Oregon Public Employees Retirement Fund | 7,635 | $856.6K | 0.01% | −146−1.9% | Reduced |
| XTX Topco Ltd | 7,658 | $859.2K | 0.04% | −8,040−51.2% | Reduced |
| Quadrant Capital Group LLC | 7,683 | $862.0K | 0.03% | +71+0.9% | Added |
| Graham Capital Management, L.P. | 8,055 | $903.8K | 0.03% | −12,558−60.9% | Reduced |
| State Board of Administration of Florida Retirement System | 8,217 | $921.9K | 0.00% | −31−0.4% | Reduced |
| Gotham Asset Management, LLC | 8,237 | $924.2K | 0.00% | +5,078+160.7% | Added |
| Cetera Investment Advisers | 8,531 | $957.2K | 0.00% | +2,206+34.9% | Added |
| Stifel Financial Corp | 8,568 | $961.3K | 0.00% | +76+0.9% | Added |
| AQR Capital Management LLC | 8,597 | $964.6K | 0.00% | +3,629+73.0% | Added |
| Mariner, LLC | 8,617 | $966.8K | 0.00% | −2,881−25.1% | Reduced |
| Nisa Investment Advisors, LLC | 8,653 | $970.9K | 0.00% | −8,857−50.6% | Reduced |
| Pathstone Holdings, LLC | 8,670 | $972.8K | 0.00% | +17+0.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,682 | $974.1K | 0.00% | −5−0.1% | Reduced |
| Occudo Quantitative Strategies LP | 8,806 | $988.0K | 0.12% | +3,895+79.3% | Added |
| Wakefield Asset Management LLLP | 8,819 | $989.5K | 0.27% | +23+0.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 9,293 | $1.04M | 0.01% | +1,769+23.5% | Added |
| Arizona State Retirement System | 9,500 | $1.07M | 0.01% | +170+1.8% | Added |
| Teachers Retirement System of the State of Kentucky | 9,520 | $1.07M | 0.01% | −776−7.5% | Reduced |
| Amalgamated Bank | 9,827 | $1.10M | 0.01% | +241+2.5% | Added |
| Fox Run Management, L.L.C. | 9,939 | $1.12M | 0.17% | +1,736+21.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,940 | $1.12M | 0.00% | +595+6.4% | Added |
| Janney Montgomery Scott LLC | 10,019 | $1.12M | 0.00% | +3,027+43.3% | Added |
| Shelton Wealth Management, LLC | 10,436 | $1.17M | 0.55% | +10,436 | New |
| Legato Capital Management LLC | 10,565 | $1.19M | 0.13% | +3,905+58.6% | Added |
| Voya Investment Management LLC | 10,694 | $1.20M | 0.00% | +1,590+17.5% | Added |
| Yousif Capital Management, LLC | 10,838 | $1.22M | 0.01% | −2,070−16.0% | Reduced |
| Handelsbanken Fonder AB | 11,000 | $1.23M | 0.00% | +1,200+12.2% | Added |
| Public Employees Retirement System of Ohio | 11,023 | $1.24M | 0.00% | 00.0% | Unchanged |
| MML Investors Services, LLC | 11,515 | $1.29M | 0.00% | +2,917+33.9% | Added |
| Campbell Newman Asset Management Inc | 12,498 | $1.40M | 0.10% | +55+0.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 12,752 | $1.43M | 0.02% | +12,752 | New |
| Militia Capital Partners, LP | 13,000 | $1.46M | 0.68% | +3,000+30.0% | Added |
| Natixis Advisors, L.P. | 13,282 | $1.49M | 0.00% | −1,533−10.3% | Reduced |
| Summit Financial, LLC | 13,300 | $1.49M | 0.02% | +13,300 | New |
| Sit Investment Associates Inc | 13,380 | $1.50M | 0.03% | +6,000+81.3% | Added |
| Campbell & CO Investment Adviser LLC | 14,231 | $1.60M | 0.12% | +14,231 | New |
| HB Wealth Management, LLC | 14,478 | $1.62M | 0.01% | +2,422+20.1% | Added |
| State of Tennessee, Treasury Department | 14,912 | $1.67M | 0.01% | +626+4.4% | Added |
| New York State Common Retirement Fund | 15,240 | $1.71M | 0.00% | −134,406−89.8% | Reduced |
| D.A. Davidson & Co. | 15,251 | $1.71M | 0.01% | +2,846+22.9% | Added |
| Fieldview Capital Management, LLC | 15,291 | $1.72M | 0.28% | +15,291 | New |
| Franklin Resources Inc | 15,427 | $1.73M | 0.00% | +585+3.9% | Added |
| Louisiana State Employees Retirement System | 15,700 | $1.76M | 0.03% | −100−0.6% | Reduced |
| Dana Investment Advisors, Inc. | 15,833 | $1.78M | 0.05% | +2,285+16.9% | Added |
| HighTower Advisors, LLC | 16,237 | $1.82M | 0.00% | −2,909−15.2% | Reduced |
| Manufacturers Life Insurance Company, The | 16,360 | $1.84M | 0.00% | −34−0.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 16,605 | $1.86M | 0.01% | +1,477+9.8% | Added |
| Gladstone Institutional Advisory LLC | 16,694 | $1.87M | 0.07% | +8,810+111.7% | Added |
| State of Alaska, Department of Revenue | 17,154 | $1.92M | 0.02% | −2,992−14.9% | Reduced |
| Kensington Investment Counsel, LLC | 17,165 | $1.93M | 0.78% | +17,165 | New |
| Brevan Howard Capital Management LP | 17,480 | $1.96M | 0.03% | +7,129+68.9% | Added |
| State of New Jersey Common Pension Fund D | 17,903 | $2.01M | 0.01% | +2,633+17.2% | Added |
| Commonwealth Equity Services, LLC | 18,904 | $2.12M | 0.00% | +240+1.3% | Added |
| MetLife Investment Management | 19,358 | $2.17M | 0.01% | −406−2.1% | Reduced |
| Janus Henderson Group PLC | 19,421 | $2.18M | 0.00% | +1,326+7.3% | Added |
| Creative Planning | 19,515 | $2.19M | 0.00% | +918+4.9% | Added |
| King Luther Capital Management Corp | 20,000 | $2.24M | 0.01% | +20,000 | New |
| Perigon Wealth Management, LLC | 20,609 | $2.31M | 0.05% | +1,403+7.3% | Added |
| Advisor Group Holdings, Inc. | 20,242 | $2.32M | 0.00% | −874−4.1% | Reduced |
| Taylor Frigon Capital Management LLC | 20,764 | $2.33M | 1.16% | −307−1.5% | Reduced |
| Baird Financial Group, Inc. | 20,869 | $2.34M | 0.00% | +397+1.9% | Added |
| Zurich Insurance Group Ltd | 20,995 | $2.36M | 0.02% | +20,995 | New |
| Bullseye Asset Management LLC | 24,061 | $2.70M | 1.41% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 24,152 | $2.71M | 0.03% | −16,965−41.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 24,380 | $2.74M | 0.07% | −11,812−32.6% | Reduced |
| Thrivent Financial for Lutherans | 24,594 | $2.76M | 0.01% | −285−1.1% | Reduced |
| Comerica Bank | 25,170 | $2.82M | 0.01% | +10,587+72.6% | Added |
| Los Angeles Capital Management LLC | 25,932 | $2.91M | 0.01% | +13,933+116.1% | Added |
| Schonfeld Strategic Advisors LLC | 26,335 | $2.95M | 0.02% | +26,335 | New |
| Algert Global LLC | 26,924 | $3.02M | 0.05% | +13,740+104.2% | Added |
| Verition Fund Management LLC | 27,246 | $3.06M | 0.02% | −12,660−31.7% | Reduced |
| Victory Capital Management Inc | 27,933 | $3.13M | 0.00% | +20,103+256.7% | Added |
| New York State Teachers Retirement System | 28,803 | $3.23M | 0.01% | +1,165+4.2% | Added |
| Intech Investment Management LLC | 29,027 | $3.26M | 0.03% | −5,362−15.6% | Reduced |
| Dark Forest Capital Management LP | 29,405 | $3.30M | 0.12% | +23,696+415.1% | Added |
| DnB Asset Management AS | 29,691 | $3.33M | 0.01% | +19,787+199.8% | Added |
| Bridgewater Associates, LP | 30,085 | $3.38M | 0.01% | +30,085 | New |
| California State Teachers Retirement System | 30,830 | $3.46M | 0.00% | +20.0% | Added |
| Nomura Holdings Inc | 30,975 | $3.48M | 0.02% | +30,975 | New |
| LPL Financial LLC | 31,677 | $3.55M | 0.00% | +9,321+41.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 32,468 | $3.64M | 0.01% | −256−0.8% | Reduced |
| Trillium Asset Management, LLC | 33,533 | $3.76M | 0.10% | −501−1.5% | Reduced |
| Nordea Investment Management AB | 36,372 | $4.07M | 0.00% | +36,372 | New |
| D. E. Shaw & Co., Inc. | 37,270 | $4.18M | 0.00% | −39,774−51.6% | Reduced |
| Divisadero Street Capital Management, LP | 38,390 | $4.31M | 0.20% | 00.0% | Unchanged |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 38,409 | $4.31M | 0.00% | −2,900−7.0% | Reduced |
| First Trust Advisors LP | 39,093 | $4.39M | 0.00% | −4,300−9.9% | Reduced |
| Alliancebernstein L.P. | 40,789 | $4.58M | 0.00% | +60.0% | Added |