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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,331,598 | $598.2M | 0.01% | +107,952+2.1% | Added |
| FMR LLC | 5,064,370 | $568.2M | 0.03% | +40,630+0.8% | Added |
| Vanguard Group Inc | 3,605,607 | $404.5M | 0.01% | +9,650+0.3% | Added |
| State Street Corp | 1,279,541 | $143.6M | 0.00% | −9,469−0.7% | Reduced |
| UBS Asset Management Americas Inc | 1,069,492 | $120.0M | 0.03% | +113,817+11.9% | Added |
| Macquarie Group Ltd | 906,268 | $101.7M | 0.12% | −45,837−4.8% | Reduced |
| UBS Group AG | 856,063 | $96.1M | 0.02% | +379,925+79.8% | Added |
| Geode Capital Management, LLC | 813,571 | $91.3M | 0.01% | +8,921+1.1% | Added |
| Driehaus Capital Management LLC | 738,158 | $82.8M | 0.59% | −115,881−13.6% | Reduced |
| Goldman Sachs Group Inc | 703,578 | $78.9M | 0.01% | +386,403+121.8% | Added |
| Hood River Capital Management LLC | 678,437 | $76.1M | 0.90% | −1,410−0.2% | Reduced |
| Two Sigma Investments, LP | 635,394 | $71.3M | 0.11% | +223,409+54.2% | Added |
| Morgan Stanley | 547,819 | $61.5M | 0.00% | −184,989−25.2% | Reduced |
| Eventide Asset Management, LLC | 547,296 | $61.4M | 1.01% | −590.0% | Reduced |
| Marshall Wace, LLP | 541,678 | $60.8M | 0.07% | −5,109−0.9% | Reduced |
| Dimensional Fund Advisors LP | 450,993 | $50.6M | 0.01% | +75,948+20.3% | Added |
| Two Sigma Advisers, LP | 423,300 | $47.5M | 0.10% | +147,900+53.7% | Added |
| Price T Rowe Associates Inc | 398,160 | $44.7M | 0.00% | +260,270+188.8% | Added |
| JPMorgan Chase & Co | 392,356 | $44.0M | 0.00% | −71,885−15.5% | Reduced |
| Emerald Advisers, LLC | 387,588 | $43.5M | 1.39% | −51,741−11.8% | Reduced |
| Invesco Ltd. | 385,804 | $43.3M | 0.01% | −90,882−19.1% | Reduced |
| Braidwell LP | 351,248 | $39.4M | 1.17% | +96,200+37.7% | Added |
| Northern Trust Corp | 347,469 | $39.0M | 0.00% | −5,261−1.5% | Reduced |
| Wasatch Advisors Inc | 325,202 | $36.5M | 0.20% | −10,124−3.0% | Reduced |
| Charles Schwab Investment Management Inc | 320,787 | $36.0M | 0.01% | +5,657+1.8% | Added |
| Brown Capital Management LLC | 313,855 | $35.2M | 1.45% | −137,516−30.5% | Reduced |
| ArrowMark Colorado Holdings LLC | 313,125 | $35.1M | 0.65% | +109,830+54.0% | Added |
| Baillie Gifford & Co | 260,719 | $29.3M | 0.02% | −2,242−0.9% | Reduced |
| Zevenbergen Capital Investments LLC | 258,523 | $29.0M | 0.56% | +136,995+112.7% | Added |
| Royce & Associates LP | 243,149 | $27.3M | 0.27% | −4,252−1.7% | Reduced |
| Principal Financial Group Inc | 242,039 | $27.2M | 0.01% | +53,995+28.7% | Added |
| Emerald Mutual Fund Advisers Trust | 238,438 | $26.8M | 1.38% | −17,205−6.7% | Reduced |
| Capital World Investors | 227,441 | $25.5M | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 224,781 | $25.2M | 0.01% | +27,595+14.0% | Added |
| Frontier Capital Management Co LLC | 219,466 | $24.6M | 0.22% | +146,069+199.0% | Added |
| Wellington Management Group LLP | 216,141 | $24.3M | 0.00% | −4,934−2.2% | Reduced |
| Bank of America Corp | 215,975 | $24.2M | 0.00% | −1,433−0.7% | Reduced |
| Bank of New York Mellon Corp | 211,797 | $23.8M | 0.00% | −9,479−4.3% | Reduced |
| BNP Paribas Arbitrage, SA | 210,070 | $23.6M | 0.02% | +12,588+6.4% | Added |
| Barclays PLC | 201,858 | $22.6M | 0.01% | +16,434+8.9% | Added |
| Royal Bank of Canada | 198,442 | $22.3M | 0.00% | −102,227−34.0% | Reduced |
| Deutsche Bank AG | 172,623 | $19.4M | 0.01% | +39,623+29.8% | Added |
| Fred Alger Management, LLC | 150,741 | $16.9M | 0.07% | +113,408+303.8% | Added |
| Davidson Kempner Capital Management LP | 146,400 | $16.4M | 0.23% | +42,600+41.0% | Added |
| Renaissance Technologies LLC | 145,199 | $16.3M | 0.02% | +145,199 | New |
| Lord, Abbett & Co. LLC | 133,414 | $15.0M | 0.04% | −7,271−5.2% | Reduced |
| Public Sector Pension Investment Board | 132,972 | $14.9M | 0.05% | +17,637+15.3% | Added |
| Squarepoint Ops LLC | 132,504 | $14.9M | 0.03% | +125,197+1,713.4% | Added |
| Montanaro Asset Management Ltd | 130,586 | $14.7M | 3.66% | +4,650+3.7% | Added |
| Jump Financial, LLC | 127,032 | $14.3M | 0.18% | +105,232+482.7% | Added |
| Citadel Advisors LLC | 124,917 | $14.0M | 0.01% | −31,524−20.2% | Reduced |
| Bellevue Group AG | 116,968 | $13.1M | 0.27% | −13,549−10.4% | Reduced |
| Ameriprise Financial Inc | 114,790 | $12.9M | 0.00% | +12,699+12.4% | Added |
| Man Group plc | 113,556 | $12.7M | 0.02% | +88,914+360.8% | Added |
| Raymond James Financial Inc | 112,980 | $12.7M | 0.00% | −78,369−41.0% | Reduced |
| Oppenheimer & Co Inc | 111,640 | $12.5M | 0.15% | −5,730−4.9% | Reduced |
| Lagoda Investment Management, L.P. | 108,060 | $12.1M | 6.86% | +3,625+3.5% | Added |
| State of Michigan Retirement System | 108,000 | $12.1M | 0.06% | 00.0% | Unchanged |
| Bank of Montreal | 105,117 | $11.8M | 0.01% | −66,141−38.6% | Reduced |
| Rhumbline Advisers | 93,342 | $10.5M | 0.01% | +125+0.1% | Added |
| Susquehanna International Group, LLP | 90,297 | $10.1M | 0.01% | +50,214+125.3% | Added |
| Legal & General Group Plc | 88,160 | $9.89M | 0.00% | −4,364−4.7% | Reduced |
| Trexquant Investment LP | 80,401 | $9.02M | 0.09% | −30,764−27.7% | Reduced |
| Jane Street Group, LLC | 78,156 | $8.77M | 0.01% | −123,017−61.1% | Reduced |
| Citigroup Inc | 76,785 | $8.62M | 0.01% | +33,414+77.0% | Added |
| Nuveen, LLC | 76,366 | $8.57M | 0.00% | −950−1.2% | Reduced |
| Panagora Asset Management Inc | 76,300 | $8.56M | 0.03% | +76,300 | New |
| Renaissance Group LLC | 76,078 | $8.54M | 0.32% | +76,078 | New |
| Ensign Peak Advisors, Inc | 74,631 | $8.37M | 0.01% | −23,150−23.7% | Reduced |
| Lazard Asset Management LLC | 70,552 | $7.92M | 0.01% | +51,973+279.7% | Added |
| Portolan Capital Management, LLC | 68,910 | $7.73M | 0.42% | +68,910 | New |
| Peregrine Capital Management LLC | 68,406 | $7.68M | 0.23% | +9,676+16.5% | Added |
| Wolverine Trading, LLC | 65,578 | $7.39M | 0.15% | +21,985+50.4% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 65,345 | $7.33M | 0.01% | +3,768+6.1% | Added |
| Credit Agricole S A | 63,615 | $7.14M | 0.02% | +63,615 | New |
| Swiss National Bank | 62,300 | $6.99M | 0.00% | +1,200+2.0% | Added |
| Biondo Investment Advisors, LLC | 58,375 | $6.55M | 0.82% | −105−0.2% | Reduced |
| Blair William & Co | 57,443 | $6.45M | 0.02% | −11,044−16.1% | Reduced |
| F/M Investments LLC | 56,912 | $6.39M | 0.25% | +3,584+6.7% | Added |
| Lisanti Capital Growth, LLC | 56,901 | $6.38M | 1.56% | +21,771+62.0% | Added |
| Next Century Growth Investors LLC | 54,350 | $6.10M | 0.44% | −65,406−54.6% | Reduced |
| Balyasny Asset Management LLC | 54,305 | $6.09M | 0.01% | +27,448+102.2% | Added |
| Millennium Management LLC | 48,814 | $5.48M | 0.00% | −66,100−57.5% | Reduced |
| Envestnet Asset Management Inc | 47,048 | $5.28M | 0.00% | +20,750+78.9% | Added |
| Prudential Financial Inc | 46,271 | $5.19M | 0.01% | +10,320+28.7% | Added |
| Bastion Asset Management Inc. | 44,887 | $5.13M | 2.96% | +44,887 | New |
| Beaconlight Capital, LLC | 44,218 | $4.96M | 2.45% | +22,694+105.4% | Added |
| SEI Investments Co | 43,716 | $4.91M | 0.01% | +1,899+4.5% | Added |
| Alliancebernstein L.P. | 40,789 | $4.58M | 0.00% | +60.0% | Added |
| First Trust Advisors LP | 39,093 | $4.39M | 0.00% | −4,300−9.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 38,409 | $4.31M | 0.00% | −2,900−7.0% | Reduced |
| Divisadero Street Capital Management, LP | 38,390 | $4.31M | 0.20% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 37,270 | $4.18M | 0.00% | −39,774−51.6% | Reduced |
| Nordea Investment Management AB | 36,372 | $4.07M | 0.00% | +36,372 | New |
| Trillium Asset Management, LLC | 33,533 | $3.76M | 0.10% | −501−1.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 32,468 | $3.64M | 0.01% | −256−0.8% | Reduced |
| LPL Financial LLC | 31,677 | $3.55M | 0.00% | +9,321+41.7% | Added |
| Nomura Holdings Inc | 30,975 | $3.48M | 0.02% | +30,975 | New |
| California State Teachers Retirement System | 30,830 | $3.46M | 0.00% | +20.0% | Added |
| Bridgewater Associates, LP | 30,085 | $3.38M | 0.01% | +30,085 | New |