| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| FMR LLC | 15% | +16% | $467,547,574 | +$64,260,663 | 5,058,396 | +16% | FMR LLC | 31 Mar 2025 |
| BlackRock, Inc. | 15% | $664,054,661 | 4,955,262 | BlackRock, Inc. | 30 Jun 2025 |
As of 30 Sep 2025, 385 institutional investors reported holding 37,128,223 shares of TransMedics Group, Inc. - Common Stock (TMDX). This represents 109% of the company’s total 33,940,151 outstanding shares.
The largest institutional shareholders of TransMedics Group, Inc. - Common Stock (TMDX) together control 80% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 5,331,598 | +2.1% | 0.01% | $598,205,291 |
| FMR LLC | 15% | 5,064,370 | +0.81% | 0.03% | $568,222,298 |
| VANGUARD GROUP INC | 11% | 3,605,607 | +0.27% | 0.01% | $404,549,105 |
| STATE STREET CORP | 3.8% | 1,279,541 | -0.73% | 0% | $143,564,500 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 3.2% | 1,069,492 | +12% | 0.03% | $119,997,002 |
| MACQUARIE GROUP LTD | 2.7% | 906,268 | -4.8% | 0.12% | $101,683,000 |
| UBS Group AG | 2.5% | 856,063 | +80% | 0.02% | $96,050,269 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 813,571 | +1.1% | 0.01% | $91,295,654 |
| Driehaus Capital Management LLC | 2.2% | 738,158 | -14% | 0.59% | $82,821,328 |
| GOLDMAN SACHS GROUP INC | 2.1% | 703,578 | +122% | 0.01% | $78,941,452 |
| Hood River Capital Management LLC | 2% | 678,437 | -0.21% | 0.9% | $76,120,631 |
| TWO SIGMA INVESTMENTS, LP | 1.9% | 635,394 | +54% | 0.11% | $71,291,207 |
| MORGAN STANLEY | 1.6% | 547,819 | -25% | 0% | $61,465,531 |
| EVENTIDE ASSET MANAGEMENT, LLC | 1.6% | 547,296 | -0.01% | 1% | $61,408,364 |
| MARSHALL WACE, LLP | 1.6% | 541,678 | -0.93% | 0.07% | $60,776,271 |
| DIMENSIONAL FUND ADVISORS LP | 1.3% | 450,993 | +20% | 0.01% | $50,602,112 |
| TWO SIGMA ADVISERS, LP | 1.2% | 423,300 | +54% | 0.1% | $47,494,260 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.2% | 398,160 | +189% | 0% | $44,675,000 |
| JPMORGAN CHASE & CO | 1.2% | 392,356 | -15% | 0% | $44,022,343 |
| EMERALD ADVISERS, LLC | 1.1% | 387,588 | -12% | 1.4% | $43,487,374 |
| Invesco Ltd. | 1.1% | 385,804 | -19% | 0.01% | $43,287,209 |
| BRAIDWELL LP | 1% | 351,248 | +38% | 1.2% | $39,410,026 |
| NORTHERN TRUST CORP | 1% | 347,469 | -1.5% | 0% | $38,986,022 |
| WASATCH ADVISORS LP | 0.96% | 325,202 | -3% | 0.2% | $36,487,664 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.95% | 320,787 | +1.8% | 0.01% | $35,992,301 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 429,064 | $52,495,350 | +$4,085,167 | $121.65 | 41 |
| 2025 Q3 | 37,128,223 | $4,166,150,614 | -$11,137,750 | $112.20 | 385 |
| 2025 Q2 | 36,786,193 | $4,927,662,357 | -$289,195,543 | $134.01 | 366 |
| 2025 Q1 | 39,009,472 | $2,625,618,476 | +$165,932,691 | $67.28 | 295 |
| 2024 Q4 | 36,855,938 | $2,297,784,694 | -$388,696,786 | $62.35 | 308 |
| 2024 Q3 | 36,492,550 | $5,723,369,932 | +$61,413,519 | $157.00 | 365 |
| 2024 Q2 | 33,743,529 | $5,082,407,329 | +$90,020,373 | $150.62 | 331 |
| 2024 Q1 | 34,019,976 | $2,515,517,054 | -$71,270,565 | $73.94 | 251 |
| 2023 Q4 | 34,973,168 | $2,760,564,347 | -$4,091,949 | $78.93 | 244 |
| 2023 Q3 | 34,944,103 | $1,913,888,694 | +$75,708,281 | $54.75 | 218 |
| 2023 Q2 | 32,524,695 | $2,731,143,204 | +$226,755,585 | $83.98 | 238 |
| 2023 Q1 | 29,891,511 | $2,263,659,591 | +$69,279,751 | $75.73 | 221 |
| 2022 Q4 | 28,992,696 | $1,789,417,886 | +$38,499,424 | $61.72 | 196 |
| 2022 Q3 | 28,283,349 | $1,180,766,429 | +$229,245,326 | $41.74 | 174 |
| 2022 Q2 | 22,873,577 | $719,448,960 | +$66,828,071 | $31.45 | 129 |
| 2022 Q1 | 20,846,434 | $561,189,812 | +$24,725,042 | $26.94 | 107 |
| 2021 Q4 | 20,080,660 | $384,713,814 | +$27,430,654 | $19.16 | 116 |
| 2021 Q3 | 19,228,003 | $636,263,034 | +$13,347,336 | $33.09 | 116 |
| 2021 Q2 | 18,779,205 | $623,049,047 | +$1,144,101 | $33.18 | 117 |
| 2021 Q1 | 18,628,828 | $772,924,082 | -$21,007,487 | $41.49 | 104 |
| 2020 Q4 | 21,299,571 | $423,671,614 | -$4,482,122 | $19.90 | 67 |
| 2020 Q3 | 20,827,226 | $287,000,555 | +$6,185,866 | $13.78 | 71 |
| 2020 Q2 | 20,159,299 | $361,233,740 | +$92,950,873 | $17.92 | 68 |
| 2020 Q1 | 15,072,652 | $182,072,226 | -$2,049,598 | $12.08 | 53 |
| 2019 Q4 | 14,958,642 | $284,357,755 | -$13,693 | $19.01 | 59 |
| 2019 Q3 | 14,301,117 | $336,971,808 | +$4,714,704 | $23.75 | 49 |
| 2019 Q2 | 11,228,228 | $311,861,739 | +$311,859,996 | $28.99 | 59 |
| 2019 Q1 | 54 | $2,000 | $37.04 | 1 |