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, Q2 2026
Institutional positions in TransMedics Group, Inc. as of Jun 30, 2026. 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
- 375
- −38 vs. Q1 2026
- Shares held
- 34.8M
- −1.58M (−4.4%) vs. Q1 2026
- Total value
- $2.31B
- −$1.30B (−36.0%) vs. Q1 2026
- New holders
- 69
- 138 more added
- Sold out
- 107
- 125 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,596,549 | $371.7M | 0.01% | +303,218+5.7% | Added |
| FMR LLC | 5,133,328 | $341.0M | 0.01% | +37,085+0.7% | Added |
| Vanguard Portfolio Management LLC | 1,933,989 | $128.5M | 0.01% | +14,454+0.8% | Added |
| Vanguard Capital Management LLC | 1,497,600 | $99.5M | 0.00% | +19,448+1.3% | Added |
| State Street Corp | 1,420,421 | $94.3M | 0.00% | +100,942+7.7% | Added |
| Nomura Asset Management International Inc. | 910,495 | $60.5M | 0.09% | +24,654+2.8% | Added |
| Geode Capital Management, LLC | 894,913 | $59.5M | 0.00% | +55,758+6.6% | Added |
| Hood River Capital Management LLC | 751,133 | $49.9M | 0.36% | +51,363+7.3% | Added |
| Dimensional Fund Advisors LP | 610,107 | $40.5M | 0.01% | +93,428+18.1% | Added |
| Braidwell LP | 609,715 | $40.5M | 1.50% | +280,324+85.1% | Added |
| Goldman Sachs Group Inc | 559,771 | $37.2M | 0.00% | −306,511−35.4% | Reduced |
| Citadel Advisors LLC | 558,824 | $37.1M | 0.02% | +497,223+807.2% | Added |
| Eventide Asset Management, LLC | 548,874 | $36.5M | 0.49% | +500.0% | Added |
| Wellington Management Group LLP | 515,973 | $34.3M | 0.01% | +29,500+6.1% | Added |
| Emerald Advisers, LLC | 490,491 | $32.6M | 0.77% | +147,700+43.1% | Added |
| UBS Group AG | 488,058 | $32.4M | 0.01% | −92,735−16.0% | Reduced |
| Morgan Stanley | 405,112 | $26.9M | 0.00% | −289,038−41.6% | Reduced |
| UBS Asset Management Americas Inc | 398,250 | $26.5M | 0.00% | −541,273−57.6% | Reduced |
| Invesco Ltd. | 394,979 | $26.2M | 0.00% | −642,995−61.9% | Reduced |
| Citigroup Inc | 386,066 | $25.6M | 0.01% | +28,685+8.0% | Added |
| Capital World Investors | 384,671 | $25.5M | 0.00% | +10,494+2.8% | Added |
| Northern Trust Corp | 368,860 | $24.5M | 0.00% | +30,701+9.1% | Added |
| Charles Schwab Investment Management Inc | 328,666 | $21.8M | 0.00% | +9,740+3.1% | Added |
| Wasatch Advisors Inc | 308,434 | $20.5M | 0.13% | −37,710−10.9% | Reduced |
| Zevenbergen Capital Investments LLC | 308,391 | $20.5M | 0.47% | +21,870+7.6% | Added |
| Emerald Mutual Fund Advisers Trust | 302,074 | $20.1M | 0.71% | +72,748+31.7% | Added |
| Baillie Gifford & Co | 267,935 | $17.8M | 0.02% | −37,259−12.2% | Reduced |
| Wells Fargo & Company | 260,218 | $17.3M | 0.00% | −13,583−5.0% | Reduced |
| Bank of America Corp | 257,001 | $17.1M | 0.00% | −38,175−12.9% | Reduced |
| Susquehanna International Group, LLP | 255,398 | $17.0M | 0.02% | +121,523+90.8% | Added |
| Toroso Investments, LLC | 251,196 | $16.7M | 0.04% | +251,196 | New |
| Millennium Management LLC | 248,312 | $16.5M | 0.01% | −57,768−18.9% | Reduced |
| Vanguard Fiduciary Trust Co | 245,680 | $16.3M | 0.00% | +9,286+3.9% | Added |
| Principal Financial Group Inc | 240,867 | $16.0M | 0.01% | +9,434+4.1% | Added |
| Barclays PLC | 237,615 | $15.8M | 0.00% | +47,037+24.7% | Added |
| Congress Asset Management Co | 227,834 | $15.1M | 0.09% | +227,834 | New |
| Deutsche Bank AG | 217,031 | $14.4M | 0.00% | +21,598+11.1% | Added |
| JPMorgan Chase & Co | 192,269 | $13.0M | 0.00% | −116,072−37.6% | Reduced |
| Bank of New York Mellon Corp | 193,752 | $12.9M | 0.00% | −17,616−8.3% | Reduced |
| Point72 Asset Management, L.P. | 192,594 | $12.8M | 0.02% | +192,594 | New |
| FirstWave Capital Management LLC | 191,240 | $12.7M | 5.61% | +66,972+53.9% | Added |
| Davidson Kempner Capital Management LP | 166,900 | $11.1M | 0.18% | +20,500+14.0% | Added |
| HRT Financial LP | 165,106 | $11.0M | 0.02% | +132,004+398.8% | Added |
| Frontier Capital Management Co LLC | 150,162 | $9.97M | 0.09% | −170,309−53.1% | Reduced |
| Public Sector Pension Investment Board | 118,746 | $7.89M | 0.02% | −3,509−2.9% | Reduced |
| Oppenheimer & Co Inc | 110,752 | $7.36M | 0.08% | −2,720−2.4% | Reduced |
| Renaissance Group LLC | 108,157 | $7.18M | 0.29% | +14,614+15.6% | Added |
| Bellevue Group AG | 101,139 | $6.72M | 0.14% | 00.0% | Unchanged |
| Lagoda Investment Management, L.P. | 97,465 | $6.47M | 3.56% | +6,935+7.7% | Added |
| BNP Paribas Arbitrage, SA | 96,337 | $6.40M | 0.00% | −48,192−33.3% | Reduced |
| Trexquant Investment LP | 93,960 | $6.24M | 0.04% | −12,340−11.6% | Reduced |
| Lazard Asset Management LLC | 92,549 | $6.15M | 0.01% | +27,755+42.8% | Added |
| IMC-Chicago, LLC | 90,515 | $6.01M | 0.06% | +62,823+226.9% | Added |
| Brown Capital Management LLC | 89,828 | $5.97M | 1.19% | −8,126−8.3% | Reduced |
| Portolan Capital Management, LLC | 82,354 | $5.47M | 0.20% | +71,666+670.5% | Added |
| Rhumbline Advisers | 80,220 | $5.33M | 0.00% | −9,604−10.7% | Reduced |
| Ameriprise Financial Inc | 79,948 | $5.31M | 0.00% | −24,766−23.7% | Reduced |
| Legal & General Group Plc | 79,582 | $5.29M | 0.00% | +829+1.1% | Added |
| Nuveen, LLC | 79,310 | $5.27M | 0.00% | +891+1.1% | Added |
| Alliancebernstein L.P. | 51,651 | $5.13M | 0.00% | +8,887+20.8% | Added |
| Bastion Asset Management Inc. | 79,452 | $5.11M | 1.73% | +23,989+43.3% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 75,090 | $4.99M | 0.00% | +75,090 | New |
| American Century Companies Inc | 70,830 | $4.70M | 0.00% | +8,235+13.2% | Added |
| Bank of Montreal | 69,601 | $4.62M | 0.00% | +235+0.3% | Added |
| Peregrine Capital Management LLC | 67,544 | $4.49M | 0.15% | +10,360+18.1% | Added |
| Swiss National Bank | 65,400 | $4.34M | 0.00% | +1,200+1.9% | Added |
| Raymond James Financial Inc | 64,481 | $4.28M | 0.00% | −50,554−43.9% | Reduced |
| SEI Investments Co | 63,474 | $4.22M | 0.00% | −6,155−8.8% | Reduced |
| Ensign Peak Advisors, Inc | 57,381 | $3.81M | 0.01% | −18,188−24.1% | Reduced |
| Algert Global LLC | 57,154 | $3.80M | 0.05% | +31,710+124.6% | Added |
| Advisor Group Holdings, Inc. | 54,036 | $3.59M | 0.00% | +47,048+673.3% | Added |
| Envestnet Asset Management Inc | 52,828 | $3.51M | 0.00% | −63,718−54.7% | Reduced |
| F/M Investments LLC | 51,906 | $3.45M | 0.18% | +11,820+29.5% | Added |
| Empowered Funds, LLC | 48,154 | $3.20M | 0.02% | +48,154 | New |
| First Trust Advisors LP | 48,108 | $3.20M | 0.00% | −5,781−10.7% | Reduced |
| Price T Rowe Associates Inc | 46,028 | $3.06M | 0.00% | −300,655−86.7% | Reduced |
| Bessemer Group Inc | 45,799 | $3.04M | 0.00% | −220.0% | Reduced |
| Biondo Investment Advisors, LLC | 44,155 | $2.93M | 0.36% | −13,815−23.8% | Reduced |
| LPL Financial LLC | 42,725 | $2.84M | 0.00% | +2,829+7.1% | Added |
| Credit Agricole S A | 42,647 | $2.83M | 0.01% | −44,742−51.2% | Reduced |
| Trillium Asset Management, LLC | 41,577 | $2.76M | 0.08% | +4,166+11.1% | Added |
| Nordea Investment Management AB | 40,493 | $2.66M | 0.00% | +1,663+4.3% | Added |
| California State Teachers Retirement System | 39,850 | $2.65M | 0.00% | +2,010+5.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 39,330 | $2.61M | 0.00% | −7,945−16.8% | Reduced |
| Atom Investors LP | 36,501 | $2.42M | 0.22% | +36,501 | New |
| Prudential Financial Inc | 35,545 | $2.36M | 0.00% | −26,085−42.3% | Reduced |
| Holocene Advisors, LP | 33,754 | $2.24M | 0.01% | +33,754 | New |
| Vanguard Asset Management, Ltd | 32,680 | $2.17M | 0.00% | +2,917+9.8% | Added |
| Norges Bank | 30,574 | $2.03M | 0.00% | +30,574 | New |
| Emerald Investment Advisers, LLC | 30,456 | $2.02M | 0.13% | +5,414+21.6% | Added |
| ArrowMark Colorado Holdings LLC | 30,151 | $2.00M | 0.08% | −140,917−82.4% | Reduced |
| State of Wisconsin Investment Board | 29,128 | $1.93M | 0.00% | −1,490−4.9% | Reduced |
| New York State Teachers Retirement System | 28,849 | $1.92M | 0.00% | −581−2.0% | Reduced |
| Brevan Howard Capital Management LP | 28,808 | $1.91M | 0.03% | +28,808 | New |
| AQR Capital Management LLC | 27,947 | $1.86M | 0.00% | +20,168+259.3% | Added |
| Taylor Frigon Capital Management LLC | 26,908 | $1.79M | 0.84% | +7,190+36.5% | Added |
| Fred Alger Management, LLC | 26,741 | $1.78M | 0.01% | −3,264−10.9% | Reduced |
| Summit Creek Advisors LLC | 26,707 | $1.77M | 0.60% | +26,707 | New |
| Quantinno Capital Management LP | 26,002 | $1.73M | 0.00% | +17,943+222.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 25,792 | $1.71M | 0.00% | −106−0.4% | Reduced |