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 2025
Institutional positions in TransMedics Group, Inc. as of Dec 31, 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
- 429
- +45 vs. Q3 2025
- Shares held
- 37.2M
- +139.4K (+0.4%) vs. Q3 2025
- Total value
- $4.53B
- +$368.2M (+8.9%) vs. Q3 2025
- New holders
- 90
- 156 more added
- Sold out
- 45
- 127 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Keating Financial Advisory Services, Inc. | 13 | $1.58K | 0.00% | +13 | New |
| TD Private Client Wealth LLC | 11 | $1.34K | 0.00% | +6+120.0% | Added |
| Torren Management, LLC | 11 | $1.34K | 0.00% | +11 | New |
| International Assets Investment Management, LLC | 10 | $1.22K | 0.00% | +10 | New |
| Westfuller Advisors, LLC | 9 | $1.14K | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 9 | $1.09K | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 9 | $1.09K | 0.00% | +9 | New |
| CIBC Private Wealth Group, LLC | 8 | $973 | 0.00% | +8 | New |
| SWAN Capital LLC | 8 | $973 | 0.00% | +8 | New |
| Ankerstar Wealth, LLC | 7 | $852 | 0.00% | +7 | New |
| Westside Investment Management, Inc. | 6 | $730 | 0.00% | +6 | New |
| SJS Investment Consulting Inc. | 4 | $487 | 0.00% | −4−50.0% | Reduced |
| JFS Wealth Advisors, LLC | 4 | $487 | 0.00% | +4 | New |
| SHP Wealth Management | 4 | $487 | 0.00% | +4 | New |
| Fortitude Family Office, LLC | 4 | $487 | 0.00% | +4 | New |
| MAI Capital Management | 3 | $365 | 0.00% | −1−25.0% | Reduced |
| ZRC Wealth Management, LLC | 3 | $365 | 0.00% | 00.0% | Unchanged |
| TD Capital Management LLC | 3 | $365 | 0.00% | +3 | New |
| Abound Wealth Management | 2 | $244 | 0.00% | 00.0% | Unchanged |
| Gilpin Wealth Management, LLC | 2 | $244 | 0.00% | +2 | New |
| Cedar Mountain Advisors, LLC | 2 | $243 | 0.00% | +1+100.0% | Added |
| Hughes Financial Services, LLC | 2 | $243 | 0.00% | +2 | New |
| ROSS\JOHNSON & Associates LLC | 2 | $243 | 0.00% | +2 | New |
| Caitong International Asset Management Co., Ltd | 1 | $122 | 0.00% | −158−99.4% | Reduced |
| Concord Wealth Partners | 1 | $122 | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 1 | $122 | 0.00% | +1 | New |
| DV Trading LLC | 1 | $122 | 0.00% | +1 | New |
| Rialto Wealth Management, LLC | 1 | $122 | 0.00% | +1 | New |
| Dunhill Financial, LLC | 1 | $75 | 0.00% | +1 | New |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −906,268−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −90,297−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −78,156−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −54,305−100.0% | Sold out |
| Divisadero Street Capital Management, LP | 0 | $0 | 0.00% | −38,390−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −37,270−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −30,975−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −30,085−100.0% | Sold out |
| DnB Asset Management AS | 0 | $0 | 0.00% | −29,691−100.0% | Sold out |
| Zurich Insurance Group Ltd | 0 | $0 | 0.00% | −20,995−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −14,231−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −9,939−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −6,649−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −4,922−100.0% | Sold out |
| Henshaw Capital LLC | 0 | $0 | 0.00% | −4,778−100.0% | Sold out |
| Precision Wealth Strategies, LLC | 0 | $0 | 0.00% | −4,772−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −4,628−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −4,219−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −4,138−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −3,863−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −3,841−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −3,661−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −3,658−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −3,499−100.0% | Sold out |
| Sapient Capital LLC | 0 | $0 | 0.00% | −3,458−100.0% | Sold out |
| Benjamin Edwards Inc | 0 | $0 | 0.00% | −2,986−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −2,800−100.0% | Sold out |
| Sandhill Capital Partners LLC | 0 | $0 | 0.00% | −2,674−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −2,552−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −2,261−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,151−100.0% | Sold out |
| ZWJ Investment Counsel Inc | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −1,925−100.0% | Sold out |
| Verus Capital Partners, LLC | 0 | $0 | 0.00% | −1,815−100.0% | Sold out |
| Sachetta, LLC | 0 | $0 | 0.00% | −635−100.0% | Sold out |
| Johnson Financial Group, Inc. | 0 | $0 | 0.00% | −576−100.0% | Sold out |
| Pilgrim Partners Asia Pte Ltd | 0 | $0 | 0.00% | −360−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −305−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −290−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −225−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −87−100.0% | Sold out |
| Atlantic Trust, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| JPL Wealth Management, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| High Note Wealth, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Tortoise Investment Management, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Wolverine Trading, LLC | – | – | – | – | Not filed |
| Bryce Point Capital, LLC | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Hemington Wealth Management | – | – | – | – | Not filed |