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; 392 institutions reported holding it in 13F filings for Q2 2026, worth $2.84B in total; Oaktree Capital is the only superinvestor holding 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
- 392
- −36 vs. Q1 2026
- Shares held
- 34.8M
- −1.61M (−4.4%) vs. Q1 2026
- Total value
- $2.84B
- −$1.36B (−32.5%) vs. Q1 2026
- New holders
- 73
- 139 more added
- Sold out
- 109
- 124 more reduced
4 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 | 392 | $2.84B |
| Q1 2026 | 432 | $4.22B |
| Q4 2025 | 447 | $5.20B |
| Q3 2025 | 407 | $4.86B |
| Q2 2025 | 387 | $5.74B |
| Q1 2025 | 321 | $3.12B |
| Q4 2024 | 340 | $2.87B |
| Q3 2024 | 396 | $6.64B |
| Q2 2024 | 360 | $6.04B |
| Q1 2024 | 262 | $2.61B |
| Q4 2023 | 248 | $2.90B |
| Q3 2023 | 222 | $1.95B |
| Q2 2023 | 240 | $2.89B |
| Q1 2023 | 224 | $2.65B |
| Q4 2022 | 200 | $1.86B |
| Q3 2022 | 179 | $1.20B |
| Q2 2022 | 135 | $730.4M |
| Q1 2022 | 110 | $570.7M |
| Q4 2021 | 121 | $385.3M |
| Q3 2021 | 120 | $636.5M |
| Q2 2021 | 123 | $636.4M |
| Q1 2021 | 107 | $775.4M |
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 | $381.8M | 0.01% | +303,218+5.7% | Added |
| FMR LLC | 5,133,328 | $347.0M | 0.02% | +37,085+0.7% | Added |
| Vanguard Portfolio Management LLC | 1,933,989 | $128.5M | 0.01% | +14,454+0.8% | Added |
| State Street Corp | 1,420,421 | $107.3M | 0.00% | +100,942+7.7% | Added |
| Vanguard Capital Management LLC | 1,497,600 | $99.5M | 0.00% | +19,448+1.3% | Added |
| Wolverine Asset Management LLC | – | $75.4M | 0.98% | – | – |
| Two Sigma Investments, LP | 8,945 | $73.5M | 0.06% | −316,195−97.2% | Reduced |
| Tenor Capital Management Co., L.P. | – | $64.8M | 0.91% | – | – |
| 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 |
| DeepCurrents Investment Group LLC | – | $58.8M | 2.02% | – | – |
| 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 |
| Balyasny Asset Management LLC | – | $36.4M | 0.07% | – | New |
| Sculptor Capital LP | – | $35.3M | 0.37% | – | – |
| 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 |
| Readystate Asset Management LP | – | $32.5M | 1.32% | – | – |
| UBS Group AG | 488,058 | $32.4M | 0.01% | −92,735−16.0% | Reduced |
| Citigroup Inc | 386,066 | $29.2M | 0.01% | +28,685+8.0% | Added |
| 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 |
| 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 |
| D. E. Shaw & Co., Inc. | – | $19.6M | 0.01% | – | – |
| BNP Paribas Arbitrage, SA | 96,337 | $18.7M | 0.01% | −48,192−33.3% | Reduced |
| 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 | $17.3M | 0.00% | −38,175−12.9% | Reduced |
| Susquehanna International Group, LLP | 255,398 | $17.0M | 0.02% | +121,523+90.8% | Added |
| Capstone Investment Advisors, LLC | 9,652 | $16.9M | 0.12% | +9,652 | New |
| 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 |
| Opti Capital Management, LP | – | $16.3M | 1.00% | – | – |
| Vanguard Fiduciary Trust Co | 245,680 | $16.3M | 0.00% | +9,286+3.9% | Added |
| JPMorgan Chase & Co | 192,269 | $16.2M | 0.00% | −116,072−37.6% | Reduced |
| Principal Financial Group Inc | 240,867 | $16.0M | 0.01% | +9,434+4.1% | Added |
| Barclays PLC | 237,615 | $15.9M | 0.01% | +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 |
| 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 |
| CSS LLC | – | $10.9M | 0.48% | – | – |
| Nuveen, LLC | 79,310 | $10.6M | 0.00% | +891+1.1% | Added |
| Frontier Capital Management Co LLC | 150,162 | $9.97M | 0.09% | −170,309−53.1% | Reduced |
| Verition Fund Management LLC | – | $9.76M | 0.07% | – | New |
| 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 |
| Trexquant Investment LP | 93,960 | $6.24M | 0.04% | −12,340−11.6% | Reduced |
| Lazard Asset Management LLC | 92,549 | $6.17M | 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 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 75,090 | $5.86M | 0.00% | – | – |
| 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 |
| 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 |
| Nykredit A/S | 1,719 | $5.05M | 0.02% | +1,719 | New |
| Zazove Associates LLC | – | $4.89M | 0.40% | – | – |
| 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 |
| Oaktree Capital Management LPSuperinvestorOaktree Capital | – | $3.40M | 0.06% | – | New |
| 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 |
| Calamos Advisors LLC | – | $2.80M | 0.01% | – | – |
| 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 |