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 2023
Institutional positions in TransMedics Group, Inc. as of Dec 31, 2023. 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
- 249
- +28 vs. Q3 2023
- Shares held
- 35.0M
- +141.4K (+0.4%) vs. Q3 2023
- Total value
- $2.76B
- +$852.8M (+44.7%) vs. Q3 2023
- New holders
- 50
- 78 more added
- Sold out
- 22
- 91 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AXA S.A. | 116,601 | $9.20M | 0.03% | −21,659−15.7% | Reduced |
| Braidwell LP | 117,701 | $9.29M | 0.34% | −189,499−61.7% | Reduced |
| Soleus Capital Management, L.P. | 123,112 | $9.72M | 1.08% | +123,112 | New |
| Deutsche Bank AG | 132,746 | $10.5M | 0.01% | −30,406−18.6% | Reduced |
| Ameriprise Financial Inc | 134,922 | $10.6M | 0.00% | −827−0.6% | Reduced |
| Granahan Investment Management Inc | 146,736 | $11.6M | 0.38% | +12,858+9.6% | Added |
| Blair William & Co | 159,107 | $12.6M | 0.04% | +152,563+2,331.3% | Added |
| Bank of America Corp | 165,204 | $13.0M | 0.00% | +3,026+1.9% | Added |
| Ensign Peak Advisors, Inc | 172,327 | $13.6M | 0.03% | −11,615−6.3% | Reduced |
| SEI Investments Co | 173,342 | $13.7M | 0.02% | −212,740−55.1% | Reduced |
| Ophir Asset Management Pty Ltd | 174,407 | $13.8M | 2.73% | −121,354−41.0% | Reduced |
| Citadel Advisors LLC | 190,589 | $15.0M | 0.02% | +78,969+70.7% | Added |
| Wells Fargo & Company | 194,880 | $15.4M | 0.00% | −259−0.1% | Reduced |
| Barclays PLC | 206,081 | $16.3M | 0.01% | +23,472+12.9% | Added |
| Oberweis Asset Management Inc | 212,900 | $16.8M | 1.57% | +61,800+40.9% | Added |
| Charles Schwab Investment Management Inc | 253,517 | $20.0M | 0.01% | +4,343+1.7% | Added |
| Price T Rowe Associates Inc | 275,101 | $21.7M | 0.00% | +153,861+126.9% | Added |
| Northern Trust Corp | 296,551 | $23.4M | 0.00% | −40,680−12.1% | Reduced |
| Baillie Gifford & Co | 308,978 | $24.4M | 0.02% | −29,184−8.6% | Reduced |
| Eagle Health Investments LP | 314,855 | $24.9M | 5.05% | −99,350−24.0% | Reduced |
| First Turn Management, LLC | 323,185 | $25.5M | 3.66% | +323,185 | New |
| Voloridge Investment Management, LLC | 332,045 | $26.2M | 0.10% | +133,514+67.3% | Added |
| Marshall Wace, LLP | 342,255 | $27.0M | 0.05% | −234,898−40.7% | Reduced |
| Royce & Associates LP | 351,698 | $27.8M | 0.26% | +210,000+148.2% | Added |
| Goldman Sachs Group Inc | 397,283 | $31.4M | 0.01% | +38,951+10.9% | Added |
| Emerald Mutual Fund Advisers Trust | 414,089 | $32.7M | 1.73% | +57,342+16.1% | Added |
| Mackenzie Financial Corp | 453,615 | $35.8M | 0.05% | +453,615 | New |
| Next Century Growth Investors LLC | 462,715 | $36.5M | 3.55% | −14,767−3.1% | Reduced |
| Morgan Stanley | 479,846 | $37.9M | 0.00% | −33,951−6.6% | Reduced |
| American Century Companies Inc | 508,080 | $40.1M | 0.03% | +21,124+4.3% | Added |
| Emerald Advisers, LLC | 516,353 | $40.8M | 1.74% | +73,807+16.7% | Added |
| Bellevue Group AG | 518,890 | $41.0M | 0.63% | −17,847−3.3% | Reduced |
| Bank of New York Mellon Corp | 687,025 | $54.2M | 0.01% | −73,074−9.6% | Reduced |
| Geode Capital Management, LLC | 700,674 | $55.3M | 0.01% | +34,751+5.2% | Added |
| Allspring Global Investments Holdings, LLC | 708,273 | $55.9M | 0.09% | −563,370−44.3% | Reduced |
| First Light Asset Management, LLC | 754,317 | $59.5M | 4.79% | +136,217+22.0% | Added |
| Sandhill Capital Partners LLC | 763,201 | $60.2M | 5.01% | +30,591+4.2% | Added |
| State Street Corp | 787,078 | $62.1M | 0.00% | +2840.0% | Added |
| Credit Suisse AG | 859,478 | $67.8M | 0.07% | −272,425−24.1% | Reduced |
| Eventide Asset Management, LLC | 994,240 | $78.5M | 1.28% | +68,884+7.4% | Added |
| ArrowMark Colorado Holdings LLC | 1,020,838 | $80.6M | 0.89% | +277,798+37.4% | Added |
| Lord, Abbett & Co. LLC | 1,025,564 | $80.9M | 0.28% | +352,470+52.4% | Added |
| Driehaus Capital Management LLC | 1,090,507 | $86.1M | 1.04% | +89,595+9.0% | Added |
| Invesco Ltd. | 1,140,851 | $90.0M | 0.02% | −112,568−9.0% | Reduced |
| Fred Alger Management, LLC | 1,342,915 | $106.0M | 0.57% | −231,688−14.7% | Reduced |
| Macquarie Group Ltd | 1,525,819 | $120.4M | 0.14% | −185,032−10.8% | Reduced |
| Vanguard Group Inc | 1,865,115 | $147.2M | 0.00% | +50,673+2.8% | Added |
| BlackRock Inc. | 2,550,255 | $201.3M | 0.01% | +100,925+4.1% | Added |
| FMR LLC | 4,828,744 | $381.1M | 0.03% | +113,874+2.4% | Added |
| Walleye Capital LLC | 0 | $0 | 0.00% | −96,091−100.0% | Sold out |
| Putnam Investments LLC | 0 | $0 | 0.00% | −87,230−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −84,450−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −74,277−100.0% | Sold out |
| Harel Insurance Investments & Financial Services Ltd. | 0 | $0 | 0.00% | −23,001−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −19,042−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −15,133−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −14,365−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −14,100−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | – | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −10,268−100.0% | Sold out |
| Shariaportfolio, Inc. | 0 | $0 | 0.00% | −8,582−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −6,902−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,128−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −5,438−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −4,500−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Contravisory Investment Management, Inc. | 0 | $0 | 0.00% | −212−100.0% | Sold out |
| North Star Investment Management Corp. | 0 | $0 | 0.00% | −101−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| Massmutual Trust Co FSB | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Must Asset Management Inc. | – | – | – | – | Not filed |