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 |
|---|---|---|---|---|---|
| Hemington Wealth Management | 2 | $0 | 0.00% | +2 | New |
| Concord Wealth Partners | 1 | $112 | 0.00% | 00.0% | Unchanged |
| Tortoise Investment Management, LLC | 1 | $112 | 0.00% | +1 | New |
| Cedar Mountain Advisors, LLC | 1 | $112 | 0.00% | +1 | New |
| Abound Wealth Management | 2 | $225 | 0.00% | 00.0% | Unchanged |
| ZRC Wealth Management, LLC | 3 | $337 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 4 | $449 | 0.00% | −148−97.4% | Reduced |
| TD Private Client Wealth LLC | 5 | $561 | 0.00% | +5 | New |
| Root Financial Partners, LLC | 5 | $561 | 0.00% | +5 | New |
| Larson Financial Group LLC | 8 | $898 | 0.00% | −15−65.2% | Reduced |
| SJS Investment Consulting Inc. | 8 | $899 | 0.00% | +1+14.3% | Added |
| Bogart Wealth, LLC | 9 | $1.01K | 0.00% | 00.0% | Unchanged |
| Westfuller Advisors, LLC | 9 | $1.05K | 0.00% | +9 | New |
| High Note Wealth, LLC | 11 | $1.23K | 0.00% | +11 | New |
| Bell Investment Advisors, Inc | 12 | $1.35K | 0.00% | 00.0% | Unchanged |
| Highline Wealth Partners LLC | 13 | $1.46K | 0.00% | 00.0% | Unchanged |
| Assetmark, Inc | 13 | $1.46K | 0.00% | +9+225.0% | Added |
| Atlantic Trust, LLC | 15 | $1.68K | 0.00% | 00.0% | Unchanged |
| JPL Wealth Management, LLC | 15 | $1.68K | 0.00% | +15 | New |
| Wolff Wiese Magana LLC | 17 | $1.91K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 14 | $2.00K | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 20 | $2.24K | 0.00% | 00.0% | Unchanged |
| Golden State Wealth Management, LLC | 20 | $2.24K | 0.00% | +20 | New |
| Northwestern Mutual Wealth Management Co | 22 | $2.47K | 0.00% | 00.0% | Unchanged |
| Prestige Wealth Management Group LLC | 22 | $2.47K | 0.00% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 24 | $2.69K | 0.00% | 00.0% | Unchanged |
| LRI Investments, LLC | 29 | $3.26K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 34 | $3.81K | 0.00% | +23+209.1% | Added |
| Aster Capital Management (DIFC) Ltd | 36 | $4.04K | 0.00% | −48−57.1% | Reduced |
| HighMark Wealth Management LLC | 40 | $4.49K | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 51 | $5.72K | 0.00% | +18+54.5% | Added |
| Truvestments Capital LLC | 57 | $6.39K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 57 | $6.39K | 0.00% | +41+256.3% | Added |
| National Bank of Canada | 58 | $6.50K | 0.00% | −10−14.7% | Reduced |
| MCF Advisors LLC | 62 | $6.96K | 0.00% | −78−55.7% | Reduced |
| Rothschild Investment LLC | 65 | $7.29K | 0.00% | −17−20.7% | Reduced |
| Mark Sheptoff Financial Planning, LLC | 69 | $7.74K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 74 | $8.30K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 81 | $9.09K | 0.00% | +1+1.3% | Added |
| Parkside Financial Bank & Trust | 81 | $9.09K | 0.00% | 00.0% | Unchanged |
| Wealthspire Advisors, LLC | 87 | $9.76K | 0.00% | +87 | New |
| Asset Dedication, LLC | 92 | $10.3K | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 100 | $11.2K | 0.00% | 00.0% | Unchanged |
| City State Bank | 100 | $11.2K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 106 | $12.0K | 0.01% | −68−39.1% | Reduced |
| Hantz Financial Services, Inc. | 105 | $12.0K | 0.00% | +91+650.0% | Added |
| Trust Co of Vermont | 110 | $12.3K | 0.00% | −40−26.7% | Reduced |
| SRS Capital Advisors, Inc. | 137 | $15.4K | 0.00% | +43+45.7% | Added |
| Maseco LLP | 141 | $15.8K | 0.00% | 00.0% | Unchanged |
| Chilton Capital Management LLC | 150 | $16.8K | 0.00% | −150−50.0% | Reduced |
| Caitong International Asset Management Co., Ltd | 159 | $17.8K | 0.01% | +159 | New |
| Massmutual Trust Co FSB | 160 | $18.0K | 0.00% | −3−1.8% | Reduced |
| Huntington National Bank | 177 | $19.9K | 0.00% | +9+5.4% | Added |
| Clearstead Advisors, LLC | 182 | $20.4K | 0.00% | −14−7.1% | Reduced |
| ORG Partners LLC | 195 | $21.9K | 0.00% | +21+12.1% | Added |
| GWM Advisors LLC | 195 | $21.9K | 0.00% | −11,117−98.3% | Reduced |
| Parallel Advisors, LLC | 197 | $22.1K | 0.00% | −7−3.4% | Reduced |
| Sound Income Strategies, LLC | 209 | $23.6K | 0.00% | −148−41.5% | Reduced |
| ISAM Funds (UK) Ltd | 225 | $25.2K | 0.01% | −2,545−91.9% | Reduced |
| Whittier Trust Co of Nevada Inc | 227 | $26.3K | 0.00% | +206+981.0% | Added |
| Bessemer Group Inc | 243 | $27.0K | 0.00% | +70+40.5% | Added |
| Salomon & Ludwin, LLC | 245 | $28.3K | 0.00% | +245 | New |
| Fifth Third Bancorp | 257 | $28.8K | 0.00% | +21+8.9% | Added |
| Harvest Fund Management Co., Ltd | 255 | $29.0K | 0.00% | +255 | New |
| Allworth Financial LP | 265 | $29.7K | 0.00% | +113+74.3% | Added |
| Optiver Holding B.V. | 268 | $30.1K | 0.00% | +191+248.1% | Added |
| Principal Securities, Inc. | 290 | $32.5K | 0.00% | +271+1,426.3% | Added |
| Newbridge Financial Services Group, Inc. | 300 | $33.7K | 0.01% | −100−25.0% | Reduced |
| FNY Investment Advisers, LLC | 305 | $34.0K | 0.01% | +305 | New |
| LOM Asset Management Ltd | 300 | $34.0K | 0.01% | +300 | New |
| Umb Bank N A | 329 | $36.9K | 0.00% | −20−5.7% | Reduced |
| Pilgrim Partners Asia Pte Ltd | 360 | $40.4K | 0.02% | +360 | New |
| Oakworth Capital, Inc. | 372 | $41.7K | 0.00% | 00.0% | Unchanged |
| First Horizon Corp | 382 | $42.9K | 0.00% | +382 | New |
| RiverPark Advisors, LLC | 386 | $43.3K | 0.02% | −577−59.9% | Reduced |
| Rakuten Securities, Inc. | 442 | $49.6K | 0.02% | 00.0% | Unchanged |
| Adirondack Trust Co | 460 | $51.6K | 0.02% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 471 | $52.0K | 0.00% | +471 | New |
| Signaturefd, LLC | 479 | $53.7K | 0.00% | +3+0.6% | Added |
| EverSource Wealth Advisors, LLC | 494 | $55.4K | 0.00% | +9+1.9% | Added |
| Ancora Advisors, LLC | 500 | $56.1K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 533 | $59.8K | 0.00% | +104+24.2% | Added |
| Central Trust Co | 550 | $61.7K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 560 | $62.8K | 0.00% | +5+0.9% | Added |
| Farther Finance Advisors, LLC | 562 | $63.1K | 0.00% | +281+100.0% | Added |
| Johnson Financial Group, Inc. | 576 | $64.6K | 0.00% | +576 | New |
| Global Retirement Partners, LLC | 597 | $67.0K | 0.00% | +400+203.0% | Added |
| TD Waterhouse Canada Inc. | 601 | $69.0K | 0.00% | +126+26.5% | Added |
| Sachetta, LLC | 635 | $71.2K | 0.03% | 00.0% | Unchanged |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 667 | $74.8K | 0.03% | +667 | New |
| Smartleaf Asset Management LLC | 679 | $76.5K | 0.00% | +131+23.9% | Added |
| State of Wyoming | 683 | $76.6K | 0.01% | +118+20.9% | Added |
| Leonteq Securities AG | 777 | $87.2K | 0.00% | +719+1,239.7% | Added |
| CWM, LLC | 897 | $101.0K | 0.00% | +140+18.5% | Added |
| Quarry LP | 959 | $107.6K | 0.03% | +283+41.9% | Added |
| KBC Group NV | 970 | $109.0K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 1,000 | $112.2K | 0.01% | +1,000 | New |
| Arcadia Investment Management Corp | 1,155 | $129.6K | 0.02% | 00.0% | Unchanged |
| Generali Investments, Management Co LLC | 1,209 | $135.7K | 0.03% | +1,209 | New |
| Van Eck Associates Corp | 1,246 | $140.0K | 0.00% | +333+36.5% | Added |