跨醫療集團公司
MX ˙ BMV ˙ US89377M1099
SecurityMX:TMDX / TransMedics Group, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership338,159 shares
Latest Disclosed Value $ 33,616,386
Northern Trust Corp reports 0.31% decrease in ownership of TMDX / TransMedics Group, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 338,159 shares of TransMedics Group, Inc. (MX:TMDX) valued at $33,616,386 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 339,216 shares of TransMedics Group, Inc.. This represents a change in shares of -0.31% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F TRANSMEDICS GROUP COM 89377M109 338,159 -1,057 -0.31 33,616 -18.54 0.0009
2026-02-17 2025-12-31 13F TRANSMEDICS GROUP COM 89377M109 339,216 -8,253 -2.38 41,266 5.85 0.0011
2025-11-14 2025-09-30 13F TRANSMEDICS GROUP COM 89377M109 347,469 -5,261 -1.49 38,986 -17.52 0.0050
2025-08-13 2025-06-30 13F TRANSMEDICS GROUP COM 89377M109 352,730 -9,233 -2.55 47,269 94.11 0.0065
2025-05-13 2025-03-31 13F TRANSMEDICS GROUP COM 89377M109 361,963 7,341 2.07 24,353 10.14 0.0036
2025-02-14 2024-12-31 13F TRANSMEDICS GROUP COM 89377M109 354,622 40,093 12.75 22,111 -55.23 0.0031
2024-11-13 2024-09-30 13F TRANSMEDICS GROUP COM 89377M109 314,529 34,631 12.37 49,381 17.13 0.0081
2024-08-14 2024-06-30 13F TRANSMEDICS GROUP COM 89377M109 279,898 -8,588 -2.98 42,158 97.65 0.0071
2024-05-14 2024-03-31 13F TRANSMEDICS GROUP COM 89377M109 288,486 -8,065 -2.72 21,331 -8.87 0.0037
2024-02-13 2023-12-31 13F TRANSMEDICS GROUP COM 89377M109 296,551 -40,680 -12.06 23,407 26.77 0.0042
2023-11-13 2023-09-30 13F TRANSMEDICS GROUP COM 89377M109 337,231 3,345 1.00 18,463 -34.15 0.0036
2023-08-11 2023-06-30 13F TRANSMEDICS GROUP COM 89377M109 333,886 16,692 5.26 28,040 16.73 0.0054
2023-05-15 2023-03-31 13F TRANSMEDICS GROUP COM 89377M109 317,194 5,559 1.78 24,021 24.89 0.0048
2023-02-13 2022-12-31 13F TRANSMEDICS GROUP COM 89377M109 311,635 5,065 1.65 19,234 50.30 0.0040
2022-11-14 2022-09-30 13F TRANSMEDICS GROUP COM 89377M109 306,570 28,667 10.32 12,797 46.40 0.0029
2022-08-12 2022-06-30 13F TRANSMEDICS GROUP COM 89377M109 277,903 3,496 1.27 8,741 18.23 0.0019
2022-05-13 2022-03-31 13F TRANSMEDICS GROUP COM 89377M109 274,407 -10,433 -3.66 7,393 35.45 0.0013
2022-02-08 2021-12-31 13F TRANSMEDICS GROUP COM 89377M109 284,840 -2,234 -0.78 5,458 -42.54 0.0009
2021-11-15 2021-09-30 13F TRANSMEDICS GROUP COM 89377M109 287,074 -10,403 -3.50 9,499 -3.76 0.0017
2021-08-13 2021-06-30 13F TRANSMEDICS GROUP COM 89377M109 297,477 10,729 3.74 9,870 -17.04 0.0017
2021-05-12 2021-03-31 13F TRANSMEDICS GROUP COM 89377M109 286,748 -35,916 -11.13 11,897 85.28 0.0022
2021-02-11 2020-12-31 13F TRANSMEDICS GROUP COM 89377M109 322,664 -13,071 -3.89 6,421 38.80 0.0013
2020-11-16 2020-09-30 13F TRANSMEDICS GROUP COM 89377M109 335,735 68,940 25.84 4,626 -3.22 0.0010
2020-08-14 2020-06-30 13F TRANSMEDICS GROUP COM 89377M109 266,795 97,856 57.92 4,780 134.20 0.0011
2020-05-14 2020-03-31 13F TRANSMEDICS GROUP COM 89377M109 168,939 -1,579 -0.93 2,041 -37.03 0.0006
2020-02-14 2019-12-31 13F TRANSMEDICS GROUP COM 89377M109 170,518 72,913 74.70 3,241 39.82 0.0007
2019-11-13 2019-09-30 13F TRANSMEDICS GROUP COM 89377M109 97,605 61,333 169.09 2,318 120.34 0.0006
2019-08-13 2019-06-30 13F TRANSMEDICS GROUP COM 89377M109 36,272 36,272 1,052 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.