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 2025
Institutional positions in TransMedics Group, Inc. as of Jun 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
- 368
- +73 vs. Q1 2025
- Shares held
- 36.8M
- −2.24M (−5.7%) vs. Q1 2025
- Total value
- $4.93B
- +$2.30B (+87.6%) vs. Q1 2025
- New holders
- 104
- 117 more added
- Sold out
- 31
- 113 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,223,646 | $700.0M | 0.01% | −24,483−0.5% | Reduced |
| FMR LLC | 5,023,740 | $673.2M | 0.04% | +25,731+0.5% | Added |
| Vanguard Group Inc | 3,595,957 | $481.9M | 0.01% | +20,961+0.6% | Added |
| State Street Corp | 1,289,010 | $172.7M | 0.01% | −17,525−1.3% | Reduced |
| FIL Ltd | 1,055,553 | $141.5M | 0.12% | −170,420−13.9% | Reduced |
| UBS Asset Management Americas Inc | 955,675 | $128.1M | 0.03% | −2,157,407−69.3% | Reduced |
| Macquarie Group Ltd | 952,105 | $127.6M | 0.16% | −163,491−14.7% | Reduced |
| Driehaus Capital Management LLC | 854,039 | $114.4M | 0.92% | +75,285+9.7% | Added |
| Geode Capital Management, LLC | 804,650 | $107.8M | 0.01% | +11,241+1.4% | Added |
| Morgan Stanley | 732,808 | $98.2M | 0.01% | +133,748+22.3% | Added |
| Hood River Capital Management LLC | 679,847 | $91.1M | 1.27% | −115,924−14.6% | Reduced |
| Eventide Asset Management, LLC | 547,355 | $73.3M | 1.28% | −130,626−19.3% | Reduced |
| Marshall Wace, LLP | 546,787 | $73.3M | 0.09% | +394,340+258.7% | Added |
| Liontrust Investment Partners LLP | 523,748 | $70.2M | 1.00% | −30,609−5.5% | Reduced |
| Invesco Ltd. | 476,686 | $63.9M | 0.01% | +32,623+7.3% | Added |
| UBS Group AG | 476,138 | $63.8M | 0.01% | −265,197−35.8% | Reduced |
| JPMorgan Chase & Co | 464,241 | $62.2M | 0.00% | +51,744+12.5% | Added |
| Brown Capital Management LLC | 451,371 | $60.5M | 1.76% | −16,752−3.6% | Reduced |
| Emerald Advisers, LLC | 439,329 | $58.9M | 2.16% | −15,465−3.4% | Reduced |
| Two Sigma Investments, LP | 411,985 | $55.2M | 0.10% | +389,280+1,714.5% | Added |
| Dimensional Fund Advisors LP | 375,045 | $50.3M | 0.01% | +47,411+14.5% | Added |
| Northern Trust Corp | 352,730 | $47.3M | 0.01% | −9,233−2.6% | Reduced |
| Wasatch Advisors Inc | 335,326 | $44.9M | 0.24% | −117,959−26.0% | Reduced |
| Goldman Sachs Group Inc | 317,175 | $42.5M | 0.01% | −190,335−37.5% | Reduced |
| Charles Schwab Investment Management Inc | 315,130 | $42.2M | 0.01% | +10,763+3.5% | Added |
| Royal Bank of Canada | 300,669 | $40.3M | 0.01% | +274,087+1,031.1% | Added |
| Two Sigma Advisers, LP | 275,400 | $36.9M | 0.08% | +275,400 | New |
| Baillie Gifford & Co | 262,961 | $35.2M | 0.03% | +3,284+1.3% | Added |
| Emerald Mutual Fund Advisers Trust | 255,643 | $34.3M | 2.09% | −6,928−2.6% | Reduced |
| Braidwell LP | 255,048 | $34.2M | 1.17% | −599,836−70.2% | Reduced |
| Royce & Associates LP | 247,401 | $33.2M | 0.34% | −49,799−16.8% | Reduced |
| Capital World Investors | 227,441 | $30.5M | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 221,276 | $29.7M | 0.01% | +11,599+5.5% | Added |
| Wellington Management Group LLP | 221,075 | $29.6M | 0.01% | −69,541−23.9% | Reduced |
| Bank of America Corp | 217,408 | $29.1M | 0.00% | −61,372−22.0% | Reduced |
| ArrowMark Colorado Holdings LLC | 203,295 | $27.2M | 0.49% | +167,670+470.7% | Added |
| Jane Street Group, LLC | 201,173 | $27.0M | 0.04% | −11,772−5.5% | Reduced |
| BNP Paribas Arbitrage, SA | 197,482 | $26.5M | 0.02% | +186,469+1,693.2% | Added |
| Wells Fargo & Company | 197,186 | $26.4M | 0.01% | −16,084−7.5% | Reduced |
| Raymond James Financial Inc | 191,349 | $25.6M | 0.01% | +45,956+31.6% | Added |
| Principal Financial Group Inc | 188,044 | $25.2M | 0.01% | −10,383−5.2% | Reduced |
| Barclays PLC | 185,424 | $24.8M | 0.01% | −27,074−12.7% | Reduced |
| Bank of Montreal | 171,258 | $23.0M | 0.01% | −6,437−3.6% | Reduced |
| Citadel Advisors LLC | 156,441 | $21.0M | 0.02% | −453,248−74.3% | Reduced |
| New York State Common Retirement Fund | 149,646 | $20.1M | 0.03% | +7,808+5.5% | Added |
| Lord, Abbett & Co. LLC | 140,685 | $18.9M | 0.06% | +140,685 | New |
| ExodusPoint Capital Management, LP | 139,407 | $18.7M | 0.23% | +139,407 | New |
| Price T Rowe Associates Inc | 137,890 | $18.5M | 0.00% | +2,192+1.6% | Added |
| Deutsche Bank AG | 133,000 | $17.8M | 0.01% | −35,461−21.0% | Reduced |
| Bellevue Group AG | 130,517 | $17.5M | 0.39% | −43,193−24.9% | Reduced |
| Montanaro Asset Management Ltd | 125,936 | $16.9M | 4.35% | −27,739−18.1% | Reduced |
| Tudor Investment Corp Et Al | 123,716 | $16.6M | 0.13% | +18,890+18.0% | Added |
| Zevenbergen Capital Investments LLC | 121,528 | $16.3M | 0.32% | +121,528 | New |
| Next Century Growth Investors LLC | 119,756 | $16.0M | 1.24% | +119,756 | New |
| Oppenheimer & Co Inc | 117,370 | $15.7M | 0.21% | +39,368+50.5% | Added |
| Public Sector Pension Investment Board | 115,335 | $15.5M | 0.07% | +8,855+8.3% | Added |
| Millennium Management LLC | 114,914 | $15.4M | 0.01% | +114,914 | New |
| Trexquant Investment LP | 111,165 | $14.9M | 0.17% | +111,165 | New |
| State of Michigan Retirement System | 108,000 | $14.5M | 0.07% | 00.0% | Unchanged |
| Lagoda Investment Management, L.P. | 104,435 | $14.0M | 7.93% | +2,625+2.6% | Added |
| Davidson Kempner Capital Management LP | 103,800 | $13.9M | 0.21% | +34,600+50.0% | Added |
| Ameriprise Financial Inc | 102,091 | $13.7M | 0.00% | +3,333+3.4% | Added |
| Ensign Peak Advisors, Inc | 97,781 | $13.1M | 0.02% | −9,837−9.1% | Reduced |
| Rhumbline Advisers | 93,217 | $12.5M | 0.01% | +3,693+4.1% | Added |
| Legal & General Group Plc | 92,524 | $12.4M | 0.00% | −149−0.2% | Reduced |
| Nuveen, LLC | 77,316 | $10.4M | 0.00% | −10,780−12.2% | Reduced |
| D. E. Shaw & Co., Inc. | 77,044 | $10.3M | 0.01% | +59,135+330.2% | Added |
| Frontier Capital Management Co LLC | 73,397 | $9.84M | 0.09% | −61,203−45.5% | Reduced |
| Blair William & Co | 68,487 | $9.18M | 0.03% | −6,508−8.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 61,577 | $8.25M | 0.01% | −3,997−6.1% | Reduced |
| Swiss National Bank | 61,100 | $8.19M | 0.00% | −3,900−6.0% | Reduced |
| Peregrine Capital Management LLC | 58,730 | $7.87M | 0.24% | −9,660−14.1% | Reduced |
| Biondo Investment Advisors, LLC | 58,480 | $7.84M | 1.03% | +410+0.7% | Added |
| F/M Investments LLC | 53,328 | $7.15M | 0.26% | +1,461+2.8% | Added |
| First Trust Advisors LP | 43,393 | $5.82M | 0.00% | +43,393 | New |
| Citigroup Inc | 43,371 | $5.81M | 0.00% | −4,916−10.2% | Reduced |
| Wolverine Trading, LLC | 43,593 | $5.73M | 0.15% | +22,052+102.4% | Added |
| Twinbeech Capital LP | 42,278 | $5.67M | 0.13% | +27,344+183.1% | Added |
| SEI Investments Co | 41,817 | $5.60M | 0.01% | −4,910−10.5% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 41,309 | $5.54M | 0.00% | −6,000−12.7% | Reduced |
| Engineers Gate Manager LP | 41,117 | $5.51M | 0.07% | +28,240+219.3% | Added |
| Alliancebernstein L.P. | 40,783 | $5.47M | 0.00% | +30.0% | Added |
| Norges Bank | 40,274 | $5.40M | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 40,083 | $5.37M | 0.01% | −50,921−56.0% | Reduced |
| Verition Fund Management LLC | 39,906 | $5.35M | 0.03% | +27,858+231.2% | Added |
| Divisadero Street Capital Management, LP | 38,390 | $5.14M | 0.34% | −75,481−66.3% | Reduced |
| Fred Alger Management, LLC | 37,333 | $5.00M | 0.02% | +37,333 | New |
| Y-Intercept (Hong Kong) Ltd | 36,192 | $4.85M | 0.12% | +36,192 | New |
| Lisanti Capital Growth, LLC | 35,130 | $4.71M | 1.30% | +6,260+21.7% | Added |
| Intech Investment Management LLC | 34,389 | $4.61M | 0.04% | +7,713+28.9% | Added |
| Trillium Asset Management, LLC | 34,034 | $4.56M | 0.12% | −1,355−3.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 32,724 | $4.39M | 0.01% | +13,199+67.6% | Added |
| California State Teachers Retirement System | 30,828 | $4.13M | 0.00% | +310+1.0% | Added |
| BCJ Capital Management, LLC | 29,255 | $3.92M | 0.26% | +29,255 | New |
| New York State Teachers Retirement System | 27,638 | $3.70M | 0.01% | +5,689+25.9% | Added |
| Balyasny Asset Management LLC | 26,857 | $3.60M | 0.01% | +15,382+134.0% | Added |
| Envestnet Asset Management Inc | 26,298 | $3.52M | 0.00% | +2,933+12.6% | Added |
| Capital Fund Management S.A. | 26,130 | $3.50M | 0.04% | −226,164−89.6% | Reduced |
| EAM Global Investors LLC | 26,036 | $3.49M | 0.90% | +26,036 | New |
| Thrivent Financial for Lutherans | 24,879 | $3.33M | 0.01% | +227+0.9% | Added |