Security record
TMDX
TransMedics Group, Inc. · Healthcare · Medical - Devices
105Tracked holders
-3Δ holders
25.87MShares held
$1.72BReported value
+11New positions
−13Exits
Momentum inputs (comparable managers):
holder breadth -2.8% ·
share flow -4.7% ·
net new positions -1.9%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 105 | -3 | 25.87M | $1.72B | +11 | −13 |
| Q1 2026 | 110 | -2 | 27.24M | $2.71B | +6 | −9 |
| Q4 2025 | 113 | -2 | 29.10M | $3.52B | +1 | −2 |
| Q3 2025 | 21 | +2 | 20.81M | $2.34B | +2 | −1 |
| Q2 2025 | 17 | +3 | 18.14M | $2.43B | +3 | — |
| Q1 2025 | 11 | -1 | 3.86M | $259.47M | +2 | −3 |
| Q4 2024 | 12 | +2 | 3.62M | $225.65M | +3 | −1 |
| Q3 2024 | 9 | -4 | 2.19M | $344.12M | — | −4 |
| Q2 2024 | 13 | — | 2.46M | $370.15M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.60M | +5.7% | $371.72M | 0.0% | ▲ Add | 5 | SEC ↗ ×17 |
| 2 | Fidelity (FMR) ✦ | 5.13M | +0.7% | $340.96M | 0.0% | ▲ Add | 5 | SEC ↗ ×8 |
| 3 | Vanguard Capital Management Llc | 1.50M | +1.3% | $99.47M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | State Street Global Advisors ✦ (passive) | 1.42M | +7.7% | $94.34M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 5 | Nomura Asset Management… | 910.50K | +2.8% | $60.48M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 894.91K | +6.6% | $59.45M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 7 | Dimensional Fund Advisors Lp | 610.11K | +18.1% | $40.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 8 | Goldman Sachs Group ✦ | 559.77K | -35.4% | $37.18M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 9 | Citadel Advisors ✦ | 558.82K | +807.2% | $37.12M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 10 | Wellington Management ✦ | 515.97K | +6.1% | $34.27M | 0.0% | ▲ Add | 9 | SEC ↗ ×5 |
| 11 | UBS Group AG | 488.06K | -16.0% | $32.42M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 12 | Morgan Stanley ✦ | 405.11K | -41.6% | $26.91M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 13 | UBS AM, a distinct business unit of… | 398.25K | -57.6% | $26.45M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 14 | Invesco Ltd. | 394.98K | -62.0% | $26.23M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 15 | Citigroup Inc | 386.07K | +8.0% | $25.64M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 16 | Capital World Investors ✦ | 384.67K | +2.8% | $25.55M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 17 | Northern Trust Corp | 368.86K | +9.1% | $24.50M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 18 | Charles Schwab Investment… | 328.67K | +3.0% | $21.83M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | Baillie Gifford ✦ | 267.94K | -12.2% | $17.80M | 0.0% | ▼ Trim | 9 | SEC ↗ ×4 |
| 20 | Wells Fargo & Company/Mn | 260.22K | -5.0% | $17.28M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 21 | Bank Of America Corp /De/ | 257.00K | -12.9% | $17.07M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 22 | Susquehanna International Group, Llp | 255.40K | +90.8% | $16.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Tidal Investments LLC | 251.20K | New | $16.68M | 0.0% | New | 1 | SEC ↗ |
| 24 | Millennium Management ✦ | 248.31K | -18.9% | $16.49M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 25 | Principal Financial Group Inc | 240.87K | +4.1% | $16.00M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 26 | Barclays Plc | 237.62K | +24.7% | $15.78M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 27 | Deutsche Bank Ag\ | 217.03K | +11.1% | $14.42M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 28 | JPMorgan Chase ✦ | 192.27K | -37.6% | $13.04M | 0.0% | ▼ Trim | 4 | SEC ↗ ×8 |
| 29 | Bank of New York Mellon Corp | 193.75K | -8.3% | $12.87M | 0.0% | ▼ Trim | 3 | SEC ↗ ×11 |
| 30 | Point72 Asset Management ✦ | 192.59K | New | $12.79M | 0.0% | New | 1 | SEC ↗ |
| 31 | Hrt Financial Lp | 165.11K | +398.8% | $10.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Bnp Paribas Financial Markets | 96.34K | -33.3% | $6.40M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 33 | Lazard Asset Management Llc | 92.55K | +42.8% | $6.15M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 34 | IMC-Chicago, LLC | 90.52K | +226.9% | $6.01M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 35 | Rhumbline Advisers | 80.22K | -10.7% | $5.33M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | Ameriprise Financial Inc | 79.95K | -23.6% | $5.31M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 37 | Legal & General Group Plc | 79.58K | +1.1% | $5.29M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 38 | Nuveen, LLC | 79.31K | +1.1% | $5.27M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 39 | Alliancebernstein L.P. | 51.65K | +20.8% | $5.13M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | DZ BANK AG Deutsche Zentral… | 75.09K | New | $4.99M | 0.0% | New | 1 | SEC ↗ ×2 |
| 41 | American Century Companies Inc | 70.83K | +13.2% | $4.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 42 | Bank Of Montreal /Can/ | 69.60K | +0.3% | $4.62M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 43 | Swiss National Bank | 65.40K | +1.9% | $4.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Raymond James Financial Inc | 64.48K | -44.0% | $4.28M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 45 | Sei Investments Co | 63.47K | -8.8% | $4.22M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 46 | Ensign Peak Advisors, Inc | 57.38K | -24.1% | $3.81M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 47 | Osaic Holdings, Inc. | 54.04K | +673.3% | $3.59M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 48 | Envestnet Asset Management Inc | 52.83K | -54.7% | $3.51M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | First Trust Advisors Lp | 48.11K | -10.7% | $3.20M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | T. Rowe Price ✦ | 46.03K | -86.7% | $3.06M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 51 | LPL Financial LLC | 42.73K | +7.1% | $2.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Credit Agricole S A | 42.65K | -51.2% | $2.83M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 53 | Nordea Investment Management Ab | 40.49K | +4.3% | $2.66M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 54 | Universal- Beteiligungs- und… | 39.33K | -16.8% | $2.61M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Prudential Financial Inc | 35.55K | -42.3% | $2.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Holocene Advisors, LP | 33.75K | New | $2.24M | 0.0% | New | 1 | SEC ↗ |
| 57 | Norges Bank ✦ (passive) | 30.57K | New | $2.03M | 0.0% | New | 1 | SEC ↗ |
| 58 | State Of Wisconsin Investment Board | 29.13K | -4.9% | $1.93M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | AQR Capital Management ✦ | 27.95K | +259.3% | $1.86M | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 60 | Quantinno Capital Management LP | 26.00K | +222.7% | $1.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 25.79K | -0.4% | $1.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Royal Bank Of Canada | 21.29K | -21.0% | $1.41M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 63 | Creative Planning | 20.95K | +1.5% | $1.39M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 64 | Corient Private Wealth LP | 19.29K | +123.2% | $1.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Blair William & Co/Il | 18.86K | -89.2% | $1.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Manufacturers Life Insurance… | 17.16K | +12.6% | $1.14M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Russell Investments Group, Ltd. | 16.40K | +8.5% | $1.09M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 68 | Stifel Financial Corp | 15.72K | +107.8% | $1.04M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 69 | Franklin Resources Inc | 15.30K | +0.3% | $1.02M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 70 | Voya Investment Management Llc | 13.41K | +6.5% | $890,493 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | Zurcher Kantonalbank (Zurich… | 13.10K | 0.0% | $870,168 | 0.0% | Held | 3 | SEC ↗ |
| 72 | New York State Common Retirement… | 12.57K | -32.6% | $834,767 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | State Board Of Administration Of… | 12.10K | +47.3% | $803,948 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 74 | Man Group plc | 11.33K | -92.8% | $752,339 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | Cetera Investment Advisers | 10.54K | -38.2% | $700,200 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 76 | Jones Financial Companies Lllp | 9.90K | +208.2% | $677,419 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Commonwealth Equity Services, Llc | 10.07K | -50.0% | $669,120 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 78 | Victory Capital Management Inc | 9.91K | +10.7% | $658,555 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Capstone Investment Advisors, Llc | 9.65K | New | $641,086 | 0.0% | New | 1 | SEC ↗ ×2 |
| 80 | Group One Trading Llc | 9.53K | +50.4% | $632,783 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | Fifth Third Bancorp | 9.35K | -55.0% | $620,980 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Two Sigma Investments ✦ | 8.95K | -97.2% | $594,127 | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 83 | Allspring Global Investments… | 6.66K | +2.9% | $451,542 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 84 | Mml Investors Services, Llc | 6.18K | -29.3% | $410,476 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Amundi | 6.03K | -12.6% | $400,246 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 86 | Pictet Asset Management Holding SA | 5.27K | 0.0% | $349,768 | 0.0% | Held | 3 | SEC ↗ |
| 87 | HighTower Advisors, LLC | 5.07K | -59.5% | $336,617 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 88 | ProShare Advisors LLC | 4.90K | -9.4% | $325,325 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 89 | Financial Engines Advisors L.L.C. | 4.42K | +0.2% | $293,311 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Wealthfront Advisers LLC | 4.40K | New | $292,314 | 0.0% | New | 1 | SEC ↗ |
| 91 | Cerity Partners LLC | 2.92K | New | $193,749 | 0.0% | New | 1 | SEC ↗ ×3 |
| 92 | Pnc Financial Services Group, Inc. | 2.65K | -27.3% | $176,345 | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 93 | Bank Julius Baer & Co. Ltd, Zurich | 2.43K | -57.5% | $162,181 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 94 | Rockefeller Capital Management L.P. | 1.55K | -12.8% | $103,150 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 95 | Pacer Advisors, Inc. | 1.28K | -46.5% | $85,000 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Optiver Holding B.V. | 1.04K | New | $69,077 | 0.0% | New | 1 | SEC ↗ |
| 97 | Simplex Trading, Llc | 734 | New | $48,752 | 0.0% | New | 1 | SEC ↗ |
| 98 | BNP Paribas Asset Management… | 488 | -15.0% | $32,413 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 99 | Walleye Trading LLC | 394 | New | $26,169 | 0.0% | New | 1 | SEC ↗ |
| 100 | TD Waterhouse Canada Inc. | 351 | +16.6% | $23,819 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Tidal Investments LLC | $16.68M | 0.0% |
| Point72 Asset Management | $12.79M | 0.0% |
| DZ BANK AG Deutsche Zentral… | $4.99M | 0.0% |
| Holocene Advisors, LP | $2.24M | 0.0% |
| Norges Bank | $2.03M | 0.0% |
| Capstone Investment Advisors… | $641,086 | 0.0% |
| Wealthfront Advisers LLC | $292,314 | 0.0% |
| Cerity Partners LLC | $193,749 | 0.0% |
| Optiver Holding B.V. | $69,077 | 0.0% |
| Simplex Trading, Llc | $48,752 | 0.0% |
| Walleye Trading LLC | $26,169 | 0.0% |
Exited
| Federated Hermes, Inc. | $5.11M | was 0.0% |
| Tudor Investment Corp Et Al | $4.00M | was 0.0% |
| Gotham Asset Management | $3.76M | was 0.0% |
| Baird Financial Group, Inc. | $2.11M | was 0.0% |
| Marshall Wace | $1.56M | was 0.0% |
| Canada Pension Plan… | $844,985 | was 0.0% |
| Squarepoint Ops LLC | $723,108 | was 0.0% |
| Captrust Financial Advisors | $692,769 | was 0.0% |
| Massachusetts Financial… | $321,293 | was 0.0% |
| Neuberger Berman Group LLC | $313,738 | was 0.0% |
| Truist Financial Corp | $249,718 | was 0.0% |
| D. E. Shaw & Co. | $246,636 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 412 holders, 36.17M shares, $3.51B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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