跨醫療集團公司
MX ˙ BMV ˙ US89377M1099
SecurityMX:TMDX / TransMedics Group, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership357,381 shares
Latest Disclosed Value $ 35,527,245
Citigroup Inc reports 396.06% increase in ownership of TMDX / TransMedics Group, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 357,381 shares of TransMedics Group, Inc. (MX:TMDX) valued at $35,527,245 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 72,044 shares of TransMedics Group, Inc.. This represents a change in shares of 396.06% 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)
2026-05-11 2026-03-31 13F TRANSMEDICS GROUP COM 89377M109 357,381 285,337 396.06 35,527 305.37 0.0076
2026-02-13 2025-12-31 13F TRANSMEDICS GROUP COM 89377M109 72,044 -4,741 -6.17 8,764 1.73 0.0039
2025-11-10 2025-09-30 13F TRANSMEDICS GROUP COM 89377M109 76,785 33,414 77.04 8,615 48.23 0.0038
2025-08-11 2025-06-30 13F TRANSMEDICS GROUP COM 89377M109 43,371 -4,916 -10.18 5,812 78.94 0.0029
2025-05-12 2025-03-31 13F TRANSMEDICS GROUP COM 89377M109 48,287 2,486 5.43 3,249 13.77 0.0017
2025-02-12 2024-12-31 13F TRANSMEDICS GROUP COM 89377M109 45,801 3,725 8.85 2,856 -56.78 0.0017
2024-11-12 2024-09-30 13F TRANSMEDICS GROUP COM 89377M109 42,076 32,552 341.79 6,606 360.60 0.0038
2024-08-12 2024-06-30 13F TRANSMEDICS GROUP COM 89377M109 9,524 3,790 66.10 1,435 239.01 0.0009
2024-05-10 2024-03-31 13F TRANSMEDICS GROUP COM 89377M109 5,734 -5,638 -49.58 424 -52.84 0.0003
2024-02-09 2023-12-31 13F TRANSMEDICS GROUP COM 89377M109 11,372 4,390 62.88 898 134.82 0.0006
2023-12-06 2023-09-30 13F/A-1 TRANSMEDICS GROUP COM 89377M109 6,982 -5,573 -44.39 382 -63.76 0.0003
2023-11-09 2023-09-30 13F TRANSMEDICS GROUP COM 89377M109 6,982 -5,573 382 0.0001
2023-08-10 2023-06-30 13F TRANSMEDICS GROUP COM 89377M109 12,555 10,216 436.77 1,054 495.48 0.0007
2023-05-11 2023-03-31 13F TRANSMEDICS GROUP COM 89377M109 2,339 1,134 94.11 177 139.19 0.0001
2023-02-09 2022-12-31 13F TRANSMEDICS GROUP COM 89377M109 1,205 8 0.67 74 48.00 0.0001
2022-11-10 2022-09-30 13F TRANSMEDICS GROUP COM 89377M109 1,197 -1,202 -50.10 50 -33.33 0.0000
2022-08-10 2022-06-30 13F TRANSMEDICS GROUP COM 89377M109 2,399 670 38.75 75 59.57 0.0001
2022-05-12 2022-03-31 13F TRANSMEDICS GROUP COM 89377M109 1,729 -5,304 -75.42 47 -65.19 0.0000
2022-02-10 2021-12-31 13F TRANSMEDICS GROUP COM 89377M109 7,033 3,691 110.44 135 21.62 0.0001
2021-11-10 2021-09-30 13F TRANSMEDICS GROUP COM 89377M109 3,342 1,483 79.77 111 79.03 0.0001
2021-08-10 2021-06-30 13F TRANSMEDICS GROUP COM 89377M109 1,859 -1,928 -50.91 62 -60.51 0.0000
2021-05-13 2021-03-31 13F TRANSMEDICS GROUP COM 89377M109 3,787 -1,135 -23.06 157 60.20 0.0001
2021-02-11 2020-12-31 13F TRANSMEDICS GROUP COM 89377M109 4,922 3,715 307.79 98 476.47 0.0001
2020-11-12 2020-09-30 13F TRANSMEDICS GROUP COM 89377M109 1,207 -1,466 -54.84 17 -64.58 0.0000
2020-08-12 2020-06-30 13F TRANSMEDICS GROUP COM 89377M109 2,673 -1,441 -35.03 48 -4.00 0.0000
2020-05-12 2020-03-31 13F TRANSMEDICS GROUP COM 89377M109 4,114 1,258 44.05 50 -7.41 0.0000
2020-02-12 2019-12-31 13F TRANSMEDICS GROUP COM 89377M109 2,856 2,552 839.47 54 671.43 0.0000
2019-11-08 2019-09-30 13F TRANSMEDICS GROUP COM 89377M109 304 -1,521 -83.34 7 -86.79 0.0000
2019-08-12 2019-06-30 13F TRANSMEDICS GROUP COM 89377M109 1,825 1,825 53 0.0000
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.