RTX 주식회사
MX ˙ BMV ˙ US75513E1010
SecurityMX:RTX / RTX Corporation
InstitutionMain Street Research LLC
Latest Disclosed Ownership6,066 shares
Latest Disclosed Value $ 1,170,171
Main Street Research LLC reports 10.37% increase in ownership of RTX / RTX Corporation

On April 30, 2026 - Main Street Research LLC filed a 13F-HR form disclosing ownership of 6,066 shares of RTX Corporation (MX:RTX) valued at $1,170,171 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 5,496 shares of RTX Corporation. This represents a change in shares of 10.37% 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)
2026-04-30 2026-03-31 13F RTX COM 75513E101 6,066 570 10.37 1,170 16.07 0.0681
2026-02-09 2025-12-31 13F RTX COM 75513E101 5,496 -67 -1.20 1,008 8.39 0.0577
2025-11-13 2025-09-30 13F RTX COM 75513E101 5,563 1,078 24.04 931 42.20 0.0503
2025-08-05 2025-06-30 13F RTX COM 75513E101 4,485 52 1.17 655 11.41 0.0408
2025-04-30 2025-03-31 13F RTX COM 75513E101 4,433 -107 -2.36 587 11.81 0.0384
2025-02-07 2024-12-31 13F RTX COM 75513E101 4,540 553 13.87 525 8.70 0.0327
2024-11-12 2024-09-30 13F RTX COM 75513E101 3,987 11 0.28 483 21.05 0.0304
2024-07-29 2024-06-30 13F RTX COM 75513E101 3,976 157 4.11 399 7.26 0.0263
2024-05-01 2024-03-31 13F RTX COM 75513E101 3,819 952 33.21 372 54.36 0.0253
2024-01-30 2023-12-31 13F RTX COM 75513E101 2,867 2,867 241 0.0194
2023-11-03 2023-09-30 13F RAYTHEON TECHNOLOGIES COM 75513E101 0 -3,171 -100.00 0 -100.00
2023-08-08 2023-06-30 13F RAYTHEON TECHNOLOGIES COM 75513E101 3,171 546 20.80 311 20.62 0.0495
2023-05-01 2023-03-31 13F RAYTHEON TECHNOLOGIES COM 75513E101 2,625 -291 -9.98 257 -12.59 0.0508
2023-02-06 2022-12-31 13F RAYTHEON TECHNOLOGIES COM 75513E101 2,916 -249 -7.87 294 13.51 0.0717
2022-11-14 2022-09-30 13F RAYTHEON TECHNOLOGIES COM 75513E101 3,165 -3 -0.09 259 -14.80 0.0570
2022-08-12 2022-06-30 13F RAYTHEON TECHNOLOGIES COM 75513E101 3,168 294 10.23 304 6.67 0.0797
2022-05-05 2022-03-31 13F RAYTHEON TECHNOLOGIES COM 75513E101 2,874 -211 -6.84 285 7.55 0.0268
2022-02-09 2021-12-31 13F RAYTHEON TECHNOLOGIES COM 75513E101 3,085 -1,176 -27.60 265 -27.60 0.0205
2021-11-12 2021-09-30 13F RAYTHEON TECHNOLOGIES COM 75513E101 4,261 1,826 74.99 366 75.96 0.0320
2021-08-06 2021-06-30 13F Raytheon Technologies COM 75513E101 2,435 2,435 208 0.0167
2016-02-04 2015-12-31 13F United Technologies COM 913017109 0 0 0 0.0000
2015-11-12 2015-09-30 13F United Technologies COM 913017109 0 -2,824 -100.00 0 -100.00
2015-07-23 2015-06-30 13F United Technologies COM 913017109 2,824 627 28.54 313 21.79 0.0641
2015-05-12 2015-03-31 13F United Technologies COM 913017109 2,197 2,197 -22.20 257 -17.89 0.0553
2015-02-09 2014-12-31 13F United Technologies COM 913017109 0 -58,615 -100.00 0 -100.00
2014-11-13 2014-09-30 13F United Technologies COM 913017109 58,615 3,386 6.13 6,190 -2.92 1.3783
2014-08-11 2014-06-30 13F United Technologies COM 913017109 55,229 2,323 4.39 6,376 3.14 1.5034
2014-05-12 2014-03-31 13F United Technologies COM 913017109 52,906 889 1.71 6,182 4.43 1.5017
2014-02-06 2013-12-31 13F United Technologies COM 913017109 52,017 -505 -0.96 5,920 4.54 1.4781
2013-11-12 2013-09-30 13F United Technologies COM 913017109 52,522 646 1.25 5,663 17.47 1.5298
2013-08-01 2013-06-30 13F United Technologies COM 913017109 51,876 51,876 4,821 1.4559
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.