트랜스메딕스 그룹, Inc.
US ˙ NasdaqGM ˙ US89377M1099

SecurityTMDX / TransMedics Group, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership1,319,479 shares
Latest Disclosed Value $ 131,169,407
State Street Corp reports 3.48% increase in ownership of TMDX / TransMedics Group, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,319,479 shares of TransMedics Group, Inc. (US:TMDX) valued at $131,169,407 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,275,133 shares of TransMedics Group, Inc.. This represents a change in shares of 3.48% during the quarter. The current value of the position is $94,171,216 USD.

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)
2026-05-15 2026-03-31 13F TRANSMEDICS GROUP COM 89377M109 1,319,479 44,346 3.48 131,169 -15.44 0.0045
2026-02-13 2025-12-31 13F TRANSMEDICS GROUP COM 89377M109 1,275,133 -4,408 -0.34 155,120 8.05 0.0052
2025-11-14 2025-09-30 13F TRANSMEDICS GROUP COM 89377M109 1,279,541 -9,469 -0.73 143,564 -16.89 0.0050
2025-08-14 2025-06-30 13F TRANSMEDICS GROUP COM 89377M109 1,289,010 -17,525 -1.34 172,740 96.51 0.0065
2025-05-15 2025-03-31 13F TRANSMEDICS GROUP COM 89377M109 1,306,535 -54,724 -4.02 87,904 3.57 0.0036
2025-02-14 2024-12-31 13F TRANSMEDICS GROUP COM 89377M109 1,361,259 88,128 6.92 84,874 -57.54 0.0033
2024-11-14 2024-09-30 13F TRANSMEDICS GROUP COM 89377M109 1,273,131 490,345 62.64 199,882 69.53 0.0081
2024-08-14 2024-06-30 13F TRANSMEDICS GROUP COM 89377M109 782,786 7,907 1.02 117,903 105.79 0.0052
2024-05-15 2024-03-31 13F TRANSMEDICS GROUP COM 89377M109 774,879 -12,199 -1.55 57,295 -7.77 0.0026
2024-02-14 2023-12-31 13F TRANSMEDICS GROUP COM 89377M109 787,078 284 0.04 62,124 44.22 0.0030
2023-11-14 2023-09-30 13F TRANSMEDICS GROUP COM 89377M109 786,794 5,650 0.72 43,077 -34.34 0.0024
2023-08-14 2023-06-30 13F TRANSMEDICS GROUP COM 89377M109 781,144 40,822 5.51 65,600 17.01 0.0034
2023-05-15 2023-03-31 13F TRANSMEDICS GROUP COM 89377M109 740,322 32,930 4.66 56,065 28.41 0.0032
2023-05-15 2022-12-31 13F/A-99 TRANSMEDICS GROUP COM 89377M109 707,392 13,250 1.91 43,660 50.69 0.0026
2023-05-15 2022-12-31 13F TRANSMEDICS GROUP COM 89377M109 707,392 13,250 43,660 0.0026
2022-11-15 2022-09-30 13F TRANSMEDICS GROUP COM 89377M109 694,142 36,716 5.58 28,973 40.13 0.0018
2022-08-15 2022-06-30 13F TRANSMEDICS GROUP COM 89377M109 657,426 -12,118 -1.81 20,676 14.62 0.0012
2022-05-16 2022-03-31 13F TRANSMEDICS GROUP COM 89377M109 669,544 -148,896 -18.19 18,038 15.03 0.0009
2022-02-14 2021-12-31 13F TRANSMEDICS GROUP COM 89377M109 818,440 17,169 2.14 15,681 -40.86 0.0007
2021-11-15 2021-09-30 13F TRANSMEDICS GROUP COM 89377M109 801,271 -18,642 -2.27 26,514 -2.54 0.0014
2021-08-16 2021-06-30 13F TRANSMEDICS GROUP COM 89377M109 819,913 297,593 56.98 27,205 25.54 0.0014
2021-07-09 2021-03-31 13F/A-1 TRANSMEDICS GROUP COM 89377M109 522,320 131,752 33.73 21,671 178.83 0.0012
2021-05-17 2021-03-31 13F TRANSMEDICS GROUP COM 89377M109 522,320 131,752 21,671 0.0012
2021-02-16 2020-12-31 13F TRANSMEDICS GROUP COM 89377M109 390,568 52,340 15.47 7,772 66.75 0.0005
2020-11-10 2020-09-30 13F TRANSMEDICS GROUP COM 89377M109 338,228 27,133 8.72 4,661 -16.39 0.0003
2020-08-14 2020-06-30 13F TRANSMEDICS GROUP COM 89377M109 311,095 76,701 32.72 5,575 96.93 0.0004
2020-06-19 2020-03-31 13F/A-1 TRANSMEDICS GROUP COM 89377M109 234,394 42,610 22.22 2,831 -22.35 0.0002
2020-05-11 2020-03-31 13F TRANSMEDICS GROUP COM 89377M109 234,394 42,610 2,831 248.6188
2020-02-06 2019-12-31 13F TRANSMEDICS GROUP COM 89377M109 191,784 85,937 81.19 3,646 45.03 0.0002
2019-11-14 2019-09-30 13F TRANSMEDICS GROUP COM 89377M109 105,847 22,806 27.46 2,514 63.25 0.0002
2019-08-14 2019-06-30 13F TRANSMEDICS GROUP COM 89377M109 83,041 83,041 1,540 0.0001
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.