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 |
|---|---|---|---|---|---|
| First Trust Advisors LP | 48,108 | $3.20M | 0.00% | −5,781−10.7% | Reduced |
| Empowered Funds, LLC | 48,154 | $3.20M | 0.02% | +48,154 | New |
| F/M Investments LLC | 51,906 | $3.45M | 0.18% | +11,820+29.5% | Added |
| Envestnet Asset Management Inc | 52,828 | $3.51M | 0.00% | −63,718−54.7% | Reduced |
| Advisor Group Holdings, Inc. | 54,036 | $3.59M | 0.00% | +47,048+673.3% | Added |
| Algert Global LLC | 57,154 | $3.80M | 0.05% | +31,710+124.6% | Added |
| Ensign Peak Advisors, Inc | 57,381 | $3.81M | 0.01% | −18,188−24.1% | Reduced |
| SEI Investments Co | 63,474 | $4.22M | 0.00% | −6,155−8.8% | Reduced |
| Raymond James Financial Inc | 64,481 | $4.28M | 0.00% | −50,554−43.9% | Reduced |
| Swiss National Bank | 65,400 | $4.34M | 0.00% | +1,200+1.9% | Added |
| Peregrine Capital Management LLC | 67,544 | $4.49M | 0.15% | +10,360+18.1% | Added |
| Bank of Montreal | 69,601 | $4.62M | 0.00% | +235+0.3% | Added |
| American Century Companies Inc | 70,830 | $4.70M | 0.00% | +8,235+13.2% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 75,090 | $4.99M | 0.00% | +75,090 | New |
| Bastion Asset Management Inc. | 79,452 | $5.11M | 1.73% | +23,989+43.3% | Added |
| Alliancebernstein L.P. | 51,651 | $5.13M | 0.00% | +8,887+20.8% | Added |
| Nuveen, LLC | 79,310 | $5.27M | 0.00% | +891+1.1% | Added |
| Legal & General Group Plc | 79,582 | $5.29M | 0.00% | +829+1.1% | Added |
| Ameriprise Financial Inc | 79,948 | $5.31M | 0.00% | −24,766−23.7% | Reduced |
| Rhumbline Advisers | 80,220 | $5.33M | 0.00% | −9,604−10.7% | Reduced |
| Portolan Capital Management, LLC | 82,354 | $5.47M | 0.20% | +71,666+670.5% | Added |
| Brown Capital Management LLC | 89,828 | $5.97M | 1.19% | −8,126−8.3% | Reduced |
| IMC-Chicago, LLC | 90,515 | $6.01M | 0.06% | +62,823+226.9% | Added |
| Lazard Asset Management LLC | 92,549 | $6.15M | 0.01% | +27,755+42.8% | Added |
| Trexquant Investment LP | 93,960 | $6.24M | 0.04% | −12,340−11.6% | Reduced |
| BNP Paribas Arbitrage, SA | 96,337 | $6.40M | 0.00% | −48,192−33.3% | Reduced |
| Lagoda Investment Management, L.P. | 97,465 | $6.47M | 3.56% | +6,935+7.7% | Added |
| Bellevue Group AG | 101,139 | $6.72M | 0.14% | 00.0% | Unchanged |
| Renaissance Group LLC | 108,157 | $7.18M | 0.29% | +14,614+15.6% | Added |
| Oppenheimer & Co Inc | 110,752 | $7.36M | 0.08% | −2,720−2.4% | Reduced |
| Public Sector Pension Investment Board | 118,746 | $7.89M | 0.02% | −3,509−2.9% | Reduced |
| Frontier Capital Management Co LLC | 150,162 | $9.97M | 0.09% | −170,309−53.1% | Reduced |
| HRT Financial LP | 165,106 | $11.0M | 0.02% | +132,004+398.8% | Added |
| Davidson Kempner Capital Management LP | 166,900 | $11.1M | 0.18% | +20,500+14.0% | Added |
| FirstWave Capital Management LLC | 191,240 | $12.7M | 5.61% | +66,972+53.9% | Added |
| Point72 Asset Management, L.P. | 192,594 | $12.8M | 0.02% | +192,594 | New |
| Bank of New York Mellon Corp | 193,752 | $12.9M | 0.00% | −17,616−8.3% | Reduced |
| JPMorgan Chase & Co | 192,269 | $13.0M | 0.00% | −116,072−37.6% | Reduced |
| Deutsche Bank AG | 217,031 | $14.4M | 0.00% | +21,598+11.1% | Added |
| Congress Asset Management Co | 227,834 | $15.1M | 0.09% | +227,834 | New |
| Barclays PLC | 237,615 | $15.8M | 0.00% | +47,037+24.7% | Added |
| Principal Financial Group Inc | 240,867 | $16.0M | 0.01% | +9,434+4.1% | Added |
| Vanguard Fiduciary Trust Co | 245,680 | $16.3M | 0.00% | +9,286+3.9% | Added |
| Millennium Management LLC | 248,312 | $16.5M | 0.01% | −57,768−18.9% | Reduced |
| Toroso Investments, LLC | 251,196 | $16.7M | 0.04% | +251,196 | New |
| Susquehanna International Group, LLP | 255,398 | $17.0M | 0.02% | +121,523+90.8% | Added |
| Bank of America Corp | 257,001 | $17.1M | 0.00% | −38,175−12.9% | Reduced |
| Wells Fargo & Company | 260,218 | $17.3M | 0.00% | −13,583−5.0% | Reduced |
| Baillie Gifford & Co | 267,935 | $17.8M | 0.02% | −37,259−12.2% | Reduced |
| Emerald Mutual Fund Advisers Trust | 302,074 | $20.1M | 0.71% | +72,748+31.7% | Added |
| Zevenbergen Capital Investments LLC | 308,391 | $20.5M | 0.47% | +21,870+7.6% | Added |
| Wasatch Advisors Inc | 308,434 | $20.5M | 0.13% | −37,710−10.9% | Reduced |
| Charles Schwab Investment Management Inc | 328,666 | $21.8M | 0.00% | +9,740+3.1% | Added |
| Northern Trust Corp | 368,860 | $24.5M | 0.00% | +30,701+9.1% | Added |
| Capital World Investors | 384,671 | $25.5M | 0.00% | +10,494+2.8% | Added |
| Citigroup Inc | 386,066 | $25.6M | 0.01% | +28,685+8.0% | Added |
| Invesco Ltd. | 394,979 | $26.2M | 0.00% | −642,995−61.9% | Reduced |
| UBS Asset Management Americas Inc | 398,250 | $26.5M | 0.00% | −541,273−57.6% | Reduced |
| Morgan Stanley | 405,112 | $26.9M | 0.00% | −289,038−41.6% | Reduced |
| UBS Group AG | 488,058 | $32.4M | 0.01% | −92,735−16.0% | Reduced |
| Emerald Advisers, LLC | 490,491 | $32.6M | 0.77% | +147,700+43.1% | Added |
| Wellington Management Group LLP | 515,973 | $34.3M | 0.01% | +29,500+6.1% | Added |
| Eventide Asset Management, LLC | 548,874 | $36.5M | 0.49% | +500.0% | Added |
| Citadel Advisors LLC | 558,824 | $37.1M | 0.02% | +497,223+807.2% | Added |
| Goldman Sachs Group Inc | 559,771 | $37.2M | 0.00% | −306,511−35.4% | Reduced |
| Braidwell LP | 609,715 | $40.5M | 1.50% | +280,324+85.1% | Added |
| Dimensional Fund Advisors LP | 610,107 | $40.5M | 0.01% | +93,428+18.1% | Added |
| Hood River Capital Management LLC | 751,133 | $49.9M | 0.36% | +51,363+7.3% | Added |
| Geode Capital Management, LLC | 894,913 | $59.5M | 0.00% | +55,758+6.6% | Added |
| Nomura Asset Management International Inc. | 910,495 | $60.5M | 0.09% | +24,654+2.8% | Added |
| State Street Corp | 1,420,421 | $94.3M | 0.00% | +100,942+7.7% | Added |
| Vanguard Capital Management LLC | 1,497,600 | $99.5M | 0.00% | +19,448+1.3% | Added |
| Vanguard Portfolio Management LLC | 1,933,989 | $128.5M | 0.01% | +14,454+0.8% | Added |
| FMR LLC | 5,133,328 | $341.0M | 0.01% | +37,085+0.7% | Added |
| BlackRock, Inc. | 5,596,549 | $371.7M | 0.01% | +303,218+5.7% | Added |
| Royce & Associates LP | 0 | $0 | 0.00% | −244,382−100.0% | Sold out |
| Lord, Abbett & Co. LLC | 0 | $0 | 0.00% | −213,973−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −158,766−100.0% | Sold out |
| Next Century Growth Investors LLC | 0 | $0 | 0.00% | −96,445−100.0% | Sold out |
| Montanaro Asset Management Ltd | 0 | $0 | 0.00% | −78,739−100.0% | Sold out |
| Longaeva Partners L.P. | 0 | $0 | 0.00% | −69,057−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −52,625−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −51,386−100.0% | Sold out |
| Integrated Advisors Network LLC | 0 | $0 | 0.00% | −47,590−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −40,217−100.0% | Sold out |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −40,114−100.0% | Sold out |
| Gotham Asset Management, LLC | 0 | $0 | 0.00% | −37,820−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −31,500−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −22,584−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −21,202−100.0% | Sold out |
| Militia Capital Management LLC | 0 | $0 | 0.00% | −21,000−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −17,387−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −15,646−100.0% | Sold out |
| Blue Jean Financial LLC | 0 | $0 | 0.00% | −15,273−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −14,666−100.0% | Sold out |
| Timothy G. Youngquist 2020 Irrevocable Trust | 0 | $0 | 0.00% | −14,444−100.0% | Sold out |
| Shelton Wealth Management, LLC | 0 | $0 | 0.00% | −13,148−100.0% | Sold out |
| Steinberganna Wealth Management | 0 | $0 | 0.00% | −11,596−100.0% | Sold out |
| Natixis Advisors, L.P. | 0 | $0 | 0.00% | −10,220−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −8,500−100.0% | Sold out |