Security record · archived quarter
TMDX
TransMedics Group, Inc. · Healthcare · Medical - Devices
21Tracked holders
+2Δ holders
20.81MShares held
$2.34BReported value
+2New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +10.5% ·
share flow +3.4% ·
net new positions +4.8%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
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 · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 5.33M | +2.1% | $598.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Fidelity (FMR) ✦ | 5.06M | +0.8% | $568.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | The Vanguard Group ✦ (passive) | 3.61M | +0.3% | $404.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | The Vanguard Group ✦ (passive) | 3.61M | +0.3% | $404.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | The Vanguard Group ✦ (passive) | 3.61M | +0.3% | $404.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | The Vanguard Group ✦ (passive) | 3.61M | +0.3% | $404.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | The Vanguard Group ✦ (passive) | 3.61M | +0.3% | $404.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | State Street Global Advisors ✦ (passive) | 1.28M | -0.7% | $143.56M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 30 | State Street Global Advisors ✦ (passive) | 1.28M | -0.7% | $143.56M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 31 | Geode Capital Management ✦ (passive) | 813.57K | +1.1% | $91.30M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 32 | Geode Capital Management ✦ (passive) | 813.57K | +1.1% | $91.30M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 33 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | JPMorgan Chase ✦ | 784.71K | — | $88.04M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Goldman Sachs Group ✦ | 703.58K | — | $78.94M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Goldman Sachs Group ✦ | 703.58K | — | $78.94M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Two Sigma Investments ✦ | 635.39K | +54.2% | $71.29M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 547.82K | — | $61.47M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Marshall Wace ✦ | 541.68K | -0.9% | $60.78M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 61 | Marshall Wace ✦ | 541.68K | -0.9% | $60.78M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 62 | Marshall Wace ✦ | 541.68K | -0.9% | $60.78M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 63 | T. Rowe Price ✦ | 398.16K | +188.8% | $44.67M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 64 | T. Rowe Price ✦ | 398.16K | +188.8% | $44.67M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 65 | Baillie Gifford ✦ | 260.72K | -0.8% | $29.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 66 | Baillie Gifford ✦ | 260.72K | -0.8% | $29.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 67 | Baillie Gifford ✦ | 260.72K | -0.8% | $29.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 68 | Baillie Gifford ✦ | 260.72K | -0.8% | $29.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 69 | Capital World Investors ✦ | 227.44K | 0.0% | $25.52M | 0.0% | Held | 3 | SEC ↗ |
| 70 | Wellington Management ✦ | 216.14K | -2.2% | $24.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 71 | Wellington Management ✦ | 216.14K | -2.2% | $24.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 72 | Wellington Management ✦ | 216.14K | -2.2% | $24.25M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 73 | Renaissance Technologies ✦ | 145.20K | New | $16.29M | 0.0% | New | 1 | SEC ↗ |
| 74 | Citadel Advisors ✦ | 124.92K | -20.1% | $14.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 75 | Citadel Advisors ✦ | 124.92K | -20.1% | $14.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 76 | Citadel Advisors ✦ | 124.92K | -20.1% | $14.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 77 | Millennium Management ✦ | 48.81K | -57.5% | $5.48M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | D. E. Shaw & Co. ✦ | 37.27K | -51.6% | $4.18M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 79 | Bridgewater Associates ✦ | 30.09K | New | $3.38M | 0.0% | New | 1 | SEC ↗ |
| 80 | AQR Capital Management ✦ | 8.60K | +73.0% | $964,583 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | AQR Capital Management ✦ | 8.60K | +73.0% | $964,583 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | AQR Capital Management ✦ | 8.60K | +73.0% | $964,583 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | AQR Capital Management ✦ | 8.60K | +73.0% | $964,583 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | AQR Capital Management ✦ | 8.60K | +73.0% | $964,583 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 85 | Gotham Asset Management ✦ | 8.24K | +160.8% | $924,191 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Renaissance Technologies | $16.29M | 0.0% |
| Bridgewater Associates | $3.38M | 0.0% |
Exited
| Norges Bank | $5.40M | 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: Q3 2025 ·
Methodology ·
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