TransMedics Group Ownership | Who Owns TransMedics Group?
TransMedics Group Ownership Summary
TransMedics Group is owned by 106.65% institutional investors, 3.01% insiders. Blackrock funding, inc. /de is the largest institutional shareholder, holding 15.40% of TMDX shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.93% of its assets in TransMedics Group shares.
TMDX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | TransMedics Group | 106.65% | 3.01% | -9.66% |
| Sector | Healthcare Stocks | 488.17% | 11.08% | -399.26% |
| Industry | Medical Device Stocks | 52.08% | 10.61% | 37.30% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 5.22M | 15.40% | $700.02M |
| Fmr | 4.01M | 11.98% | $249.86M |
| Vanguard group | 3.64M | 10.87% | $226.70M |
| Blackrock | 2.65M | 8.08% | $398.47M |
| Fil | 1.06M | 3.11% | $141.45M |
| Macquarie group | 992.50K | 2.97% | $61.88M |
| Ubs asset management americas | 903.09K | 2.70% | $56.31M |
| Driehaus capital management | 854.04K | 2.52% | $114.45M |
| State street | 782.79K | 2.39% | $117.90M |
| Geode capital management | 772.74K | 2.31% | $48.19M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Lagoda investment management | 104.44K | 7.93% | $14.00M |
| Montanaro asset management | 125.94K | 4.35% | $16.88M |
| Semanteon capital management, lp | 11.23K | 2.27% | $1.51M |
| Emerald advisers | 439.33K | 2.16% | $58.87M |
| Emerald mutual fund advisers trust | 255.64K | 2.09% | $34.26M |
| Brown capital management | 451.37K | 1.76% | $60.49M |
| Beaconlight capital | 21.52K | 1.65% | $2.88M |
| Taylor frigon capital management | 21.07K | 1.50% | $2.82M |
| Bullseye asset management | 47.75K | 1.40% | $2.98M |
| Lisanti capital growth | 35.13K | 1.30% | $4.71M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 4.01M | 0.01% | 1.88M |
| Liontrust investment partners llp | 596.40K | 0.54% | 565.26K |
| Ubs asset management americas | 903.09K | 0.01% | 558.47K |
| Ubs group | 590.24K | 0.01% | 530.99K |
| Marshall wace, llp | 546.79K | 0.08% | 394.34K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Braidwell lp | 255.05K | 1.17% | -599.84K |
| Fuller & thaler asset management | - | - | -456.52K |
| 1832 asset management | - | - | -455.44K |
| Invesco | 678.63K | 0.01% | -415.45K |
| Man group | - | - | -395.45K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 366.66K | 0.00% | 366.66K | $22.86M |
| Lord, abbett | 140.69K | 0.06% | 140.69K | $18.85M |
| Exoduspoint capital management, lp | 139.41K | 0.16% | 139.41K | $18.68M |
| Capital fund management | 125.88K | 0.02% | 125.88K | $7.85M |
| Zevenbergen capital investments | 121.53K | 0.32% | 121.53K | $16.29M |
Sold Out
| Holder | Change |
|---|---|
| Tfc financial management | -1.00 |
| Twin tree management, lp | -1.00 |
| American capital advisory | -2.00 |
| Continuum advisory | -3.00 |
| Capital performance advisors llp | -4.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 382 | 20.13% | 36,167,798 | -7.22% | 106 | 0.80% | 220 | 27.17% | 111 | 20.65% |
| Mar 31, 2025 | 318 | -4.50% | 38,982,186 | 5.78% | 115 | 0.95% | 174 | -14.29% | 91 | 10.98% |
| Dec 31, 2024 | 265 | -31.88% | 29,921,356 | -17.12% | 89 | 0.77% | 164 | -22.64% | 69 | -42.50% |
| Sep 30, 2024 | 385 | 9.38% | 36,093,168 | 7.48% | 107 | 1.03% | 208 | 1.96% | 120 | 7.14% |
| Jun 30, 2024 | 348 | 26.09% | 33,565,574 | -1.41% | 102 | 0.93% | 202 | 39.31% | 110 | 35.80% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 2.02M | 5.93% | 294.00 |
| Vanguard US Total Market Shares ETF | 1.02M | 3.01% | 33.89K |
| Vanguard Total Stock Mkt Idx Inv | 1.01M | 2.96% | -21.25K |
| iShares Russell 2000 ETF | 782.95K | 2.30% | -14.91K |
| Vanguard Small Cap Index | 779.87K | 2.29% | -5.61K |
| Fidelity | 646.00K | 1.90% | - |
| Fidelity Advisor New Insights I | 637.90K | 1.87% | - |
| Canada Life US Small-Mid Cap Growth A | 626.07K | 1.87% | - |
| Fidelity Small Cap Growth | 633.66K | 1.86% | - |
| Fidelity VIP Contrafund Initial | 614.20K | 1.80% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 07, 2025 | Hassanein Waleed H | President & CEO | Buy | $217.11K |
| Aug 06, 2025 | Hassanein Waleed H | President & CEO | Buy | $996.91K |
| Aug 07, 2025 | Hassanein Waleed H | President & CEO | Buy | $768.10K |
| Aug 04, 2025 | Basile Edward M | - | Sell | $519.99K |
| Jun 09, 2025 | Ranganath Anil P. | See remarks | Sell | $95.90K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | 3 | 1 |
| 2025 Q2 | - | 4 |
| 2025 Q1 | - | 2 |
| 2024 Q4 | - | 18 |
| 2024 Q3 | - | 55 |
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