Security record · archived quarter
TMDX
TransMedics Group, Inc. · Healthcare · Medical - Devices
13Tracked holders
—Δ holders
2.46MShares held
$370.15MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
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 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 753.68K | — | $113.54M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 753.68K | — | $113.54M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | T. Rowe Price ✦ | 330.43K | — | $49.77M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | T. Rowe Price ✦ | 330.43K | — | $49.77M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Wellington Management ✦ | 314.35K | — | $47.35M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Wellington Management ✦ | 314.35K | — | $47.35M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Wellington Management ✦ | 314.35K | — | $47.35M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Wellington Management ✦ | 314.35K | — | $47.35M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Norges Bank ✦ (passive) | 269.87K | — | $40.65M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Baillie Gifford ✦ | 257.47K | — | $38.78M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Baillie Gifford ✦ | 257.47K | — | $38.78M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Baillie Gifford ✦ | 257.47K | — | $38.78M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Baillie Gifford ✦ | 257.47K | — | $38.78M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | D. E. Shaw & Co. ✦ | 210.27K | — | $31.67M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | Renaissance Technologies ✦ | 131.90K | — | $19.87M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Citadel Advisors ✦ | 78.13K | — | $11.77M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 78.13K | — | $11.77M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Millennium Management ✦ | 74.61K | — | $11.24M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | Bridgewater Associates ✦ | 22.20K | — | $3.34M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Marshall Wace ✦ | 9.45K | — | $1.42M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 3.02K | — | $454,119 | 0.0% | n/c | 1 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 3.02K | — | $454,119 | 0.0% | n/c | 1 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 3.02K | — | $454,119 | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Gotham Asset Management ✦ | 1.99K | — | $300,186 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
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 2024 ·
Methodology ·
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