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 |
|---|---|---|---|---|---|
| New York State Teachers Retirement System | 29,503 | $3.59M | 0.01% | +700+2.4% | Added |
| Beaconlight Capital, LLC | 29,344 | $3.57M | 2.08% | −14,874−33.6% | Reduced |
| Trillium Asset Management, LLC | 27,877 | $3.53M | 0.11% | −5,656−16.9% | Reduced |
| Los Angeles Capital Management LLC | 25,560 | $3.47M | 0.01% | −372−1.4% | Reduced |
| Victory Capital Management Inc | 27,877 | $3.39M | 0.00% | −56−0.2% | Reduced |
| Virtu Financial LLC | 26,949 | $3.28M | 0.13% | +22,202+467.7% | Added |
| Deerfield Management Company, L.P. (Series C) | 25,492 | $3.10M | 0.04% | +12,740+99.9% | Added |
| First Trust Advisors LP | 25,485 | $3.10M | 0.00% | −13,608−34.8% | Reduced |
| Comerica Bank | 24,666 | $3.00M | 0.01% | −504−2.0% | Reduced |
| Bullseye Asset Management LLC | 24,061 | $2.93M | 1.58% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 23,483 | $2.86M | 0.01% | −1,111−4.5% | Reduced |
| Commonwealth Equity Services, LLC | 22,491 | $2.74M | 0.00% | +3,587+19.0% | Added |
| Creative Planning | 21,630 | $2.63M | 0.00% | +2,115+10.8% | Added |
| Perigon Wealth Management, LLC | 21,325 | $2.59M | 0.05% | +716+3.5% | Added |
| Illinois Municipal Retirement Fund | 20,533 | $2.50M | 0.03% | +20,533 | New |
| King Luther Capital Management Corp | 20,000 | $2.43M | 0.01% | 00.0% | Unchanged |
| Taylor Frigon Capital Management LLC | 19,823 | $2.41M | 1.22% | −941−4.5% | Reduced |
| Intech Investment Management LLC | 18,913 | $2.30M | 0.02% | −10,114−34.8% | Reduced |
| New York State Common Retirement Fund | 18,640 | $2.27M | 0.00% | +3,400+22.3% | Added |
| MetLife Investment Management | 18,520 | $2.25M | 0.01% | −838−4.3% | Reduced |
| State of New Jersey Common Pension Fund D | 18,424 | $2.24M | 0.01% | +521+2.9% | Added |
| Y-Intercept (Hong Kong) Ltd | 17,888 | $2.18M | 0.05% | −6,492−26.6% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 17,669 | $2.15M | 0.01% | +1,064+6.4% | Added |
| State of Alaska, Department of Revenue | 17,401 | $2.12M | 0.02% | +247+1.4% | Added |
| Verition Fund Management LLC | 17,100 | $2.08M | 0.01% | −10,146−37.2% | Reduced |
| Gladstone Institutional Advisory LLC | 16,605 | $2.02M | 0.08% | −89−0.5% | Reduced |
| HighTower Advisors, LLC | 16,407 | $2.00M | 0.00% | +170+1.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 16,265 | $1.98M | 0.00% | +6,325+63.6% | Added |
| Franklin Resources Inc | 15,771 | $1.92M | 0.00% | +344+2.2% | Added |
| Legato Capital Management LLC | 15,735 | $1.91M | 0.16% | +5,170+48.9% | Added |
| SG Americas Securities, LLC | 15,725 | $1.91M | 0.00% | +8,762+125.8% | Added |
| Louisiana State Employees Retirement System | 15,700 | $1.91M | 0.03% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 15,691 | $1.91M | 0.00% | −669−4.1% | Reduced |
| Dana Investment Advisors, Inc. | 15,658 | $1.90M | 0.06% | −175−1.1% | Reduced |
| Kensington Investment Counsel, LLC | 15,584 | $1.90M | 0.77% | −1,581−9.2% | Reduced |
| American Century Companies Inc | 15,546 | $1.89M | 0.00% | +15,546 | New |
| D.A. Davidson & Co. | 15,334 | $1.87M | 0.01% | +83+0.5% | Added |
| Weiss Asset Management LP | 15,264 | $1.86M | 0.03% | +15,264 | New |
| State of Tennessee, Treasury Department | 13,533 | $1.81M | 0.01% | −1,379−9.2% | Reduced |
| HB Wealth Management, LLC | 14,736 | $1.79M | 0.01% | +258+1.8% | Added |
| Hussman Strategic Advisors, Inc. | 14,700 | $1.79M | 0.43% | +14,700 | New |
| Baird Financial Group, Inc. | 13,875 | $1.69M | 0.00% | −6,994−33.5% | Reduced |
| Engineers Gate Manager LP | 13,773 | $1.68M | 0.02% | −10,379−43.0% | Reduced |
| Summit Financial, LLC | 13,718 | $1.67M | 0.02% | +418+3.1% | Added |
| XTX Topco Ltd | 13,693 | $1.67M | 0.04% | +6,035+78.8% | Added |
| Public Employees Retirement System of Ohio | 13,572 | $1.65M | 0.01% | +2,549+23.1% | Added |
| Sit Investment Associates Inc | 13,380 | $1.63M | 0.03% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 12,542 | $1.53M | 0.01% | +10,146+423.5% | Added |
| Campbell Newman Asset Management Inc | 12,039 | $1.46M | 0.11% | −459−3.7% | Reduced |
| Natixis Advisors, L.P. | 12,023 | $1.46M | 0.00% | −1,259−9.5% | Reduced |
| Militia Capital Partners, LP | 12,000 | $1.46M | 0.55% | −1,000−7.7% | Reduced |
| MML Investors Services, LLC | 11,934 | $1.45M | 0.00% | +419+3.6% | Added |
| Shelton Wealth Management, LLC | 11,885 | $1.45M | 0.63% | +1,449+13.9% | Added |
| Voya Investment Management LLC | 11,652 | $1.42M | 0.00% | +958+9.0% | Added |
| Polymer Capital Management (US) LLC | 11,197 | $1.36M | 0.18% | +11,197 | New |
| Yousif Capital Management, LLC | 9,491 | $1.35M | 0.01% | −1,347−12.4% | Reduced |
| Fieldview Capital Management, LLC | 11,045 | $1.34M | 0.23% | −4,246−27.8% | Reduced |
| Handelsbanken Fonder AB | 11,000 | $1.34M | 0.00% | 00.0% | Unchanged |
| Polen Capital Management LLC | 10,828 | $1.32M | 0.01% | +5,138+90.3% | Added |
| Cetera Investment Advisers | 10,771 | $1.31M | 0.00% | +2,240+26.3% | Added |
| Dark Forest Capital Management LP | 10,588 | $1.29M | 0.06% | −18,817−64.0% | Reduced |
| Virginia Retirement Systems Et Al | 10,400 | $1.27M | 0.01% | +3,800+57.6% | Added |
| Renaissance Technologies LLC | 10,299 | $1.25M | 0.00% | −134,900−92.9% | Reduced |
| Amalgamated Bank | 9,889 | $1.20M | 0.01% | +62+0.6% | Added |
| Timothy G. Youngquist 2020 Irrevocable Trust | 9,629 | $1.17M | 1.00% | +9,629 | New |
| Concurrent Investment Advisors, LLC | 9,344 | $1.14M | 0.01% | +9,344 | New |
| Police & Firemen's Retirement System of New Jersey | 9,121 | $1.11M | 0.01% | −172−1.9% | Reduced |
| Arizona State Retirement System | 9,117 | $1.11M | 0.01% | −383−4.0% | Reduced |
| Acadian Asset Management LLC | 9,118 | $1.11M | 0.00% | +8,647+1,835.9% | Added |
| Mariner, LLC | 9,022 | $1.10M | 0.00% | +405+4.7% | Added |
| Wakefield Asset Management LLLP | 8,801 | $1.07M | 0.29% | −18−0.2% | Reduced |
| Nisa Investment Advisors, LLC | 8,631 | $1.05M | 0.00% | −22−0.3% | Reduced |
| VGI Partners Ltd | 8,600 | $1.05M | 0.06% | +8,600 | New |
| Teachers Retirement System of the State of Kentucky | 8,519 | $1.04M | 0.01% | −1,001−10.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,460 | $1.03M | 0.01% | −222−2.6% | Reduced |
| Park Avenue Securities LLC | 8,462 | $1.03M | 0.01% | +903+11.9% | Added |
| State Board of Administration of Florida Retirement System | 8,217 | $999.6K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 7,797 | $948.5K | 0.01% | +162+2.1% | Added |
| Graham Capital Management, L.P. | 7,785 | $947.0K | 0.03% | −270−3.4% | Reduced |
| Brevan Howard Capital Management LP | 7,761 | $944.1K | 0.02% | −9,719−55.6% | Reduced |
| Quadrant Capital Group LLC | 7,681 | $934.4K | 0.03% | −20.0% | Reduced |
| NLB Skladi, upravljanje premozenja, d.o.o. | 7,670 | $933.1K | 0.04% | +7,670 | New |
| Stifel Financial Corp | 7,642 | $929.7K | 0.00% | −926−10.8% | Reduced |
| Resources Investment Advisors, LLC. | 7,520 | $914.8K | 0.01% | +264+3.6% | Added |
| Clough Capital Partners L P | 7,119 | $866.0K | 0.08% | +7,119 | New |
| KLP Kapitalforvaltning AS | 6,900 | $839.4K | 0.00% | +300+4.5% | Added |
| Advisor Group Holdings, Inc. | 6,873 | $836.0K | 0.00% | −13,369−66.0% | Reduced |
| Russell Investments Group, Ltd. | 6,871 | $835.9K | 0.00% | +2,322+51.0% | Added |
| Wiley Bros.-Aintree Capital, LLC | 6,732 | $818.9K | 0.00% | +264+4.1% | Added |
| ProShare Advisors LLC | 6,710 | $816.3K | 0.00% | +287+4.5% | Added |
| Catalyst Capital Advisors LLC | 6,575 | $799.8K | 0.02% | −300−4.4% | Reduced |
| Pathstone Holdings, LLC | 6,330 | $770.0K | 0.00% | −2,340−27.0% | Reduced |
| Penserra Capital Management LLC | 6,283 | $764.0K | 0.01% | +6,283 | New |
| Gilder Gagnon Howe & Co LLC | 6,207 | $755.1K | 0.01% | −968−13.5% | Reduced |
| Abundance Wealth Counselors | 6,162 | $749.6K | 0.13% | −15−0.2% | Reduced |
| Harbour Capital Advisors, LLC | 5,827 | $714.9K | 0.15% | −50−0.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 5,813 | $713.2K | 0.00% | +1,644+39.4% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 5,763 | $701.1K | 0.00% | +288+5.3% | Added |
| Values First Advisors, Inc. | 5,763 | $701.1K | 0.36% | −75−1.3% | Reduced |
| HighPoint Advisor Group LLC | 5,738 | $698.0K | 0.02% | +2,871+100.1% | Added |