Northrop Grumman Corporation
MX ˙ BMV ˙ US6668071029
SecurityMX:NOC / Northrop Grumman Corporation
InstitutionRossmore Private Capital
Latest Disclosed Ownership831 shares
Latest Disclosed Value $ 566,941
Rossmore Private Capital reports 1.19% decrease in ownership of NOC / Northrop Grumman Corporation

On May 1, 2026 - Rossmore Private Capital filed a 13F-HR form disclosing ownership of 831 shares of Northrop Grumman Corporation (MX:NOC) valued at $566,941 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 841 shares of Northrop Grumman Corporation. This represents a change in shares of -1.19% 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)
2026-05-01 2026-03-31 13F NORTHROP GRUMMAN COM 666807102 831 -10 -1.19 567 18.16 0.0497
2026-02-05 2025-12-31 13F NORTHROP GRUMMAN COM 666807102 841 200 31.20 480 22.82 0.0427
2025-10-30 2025-09-30 13F NORTHROP GRUMMAN COM 666807102 641 0 0.00 391 21.88 0.0421
2025-08-07 2025-06-30 13F NORTHROP GRUMMAN COM 666807102 641 -71 -9.97 320 -12.09 0.0374
2025-05-13 2025-03-31 13F NORTHROP GRUMMAN COM 666807102 712 81 12.84 364 22.97 0.0448
2025-02-13 2024-12-31 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 296 -11.11 0.0366
2024-11-05 2024-09-30 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 333 21.09 0.0412
2024-08-12 2024-06-30 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 275 -8.94 0.0361
2024-05-13 2024-03-31 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 302 2.37 0.0395
2024-02-07 2023-12-31 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 295 6.50 0.0417
2023-11-13 2023-09-30 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 278 -3.48 0.0421
2023-08-14 2023-06-30 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 288 -1.37 0.0428
2023-05-02 2023-03-31 13F NORTHROP GRUMMAN COM 666807102 631 0 0.00 291 -15.41 0.0455
2023-02-14 2022-12-31 13F NORTHROP GRUMMAN COM 666807102 631 -73 -10.37 344 0.0551
2022-11-08 2022-09-30 13F NORTHROP GRUMMAN COM 666807102 704 30 4.45 0 0.0592
2022-08-11 2022-06-30 13F NORTHROP GRUMMAN COM 666807102 674 0 0.00 0 0.0559
2022-05-09 2022-03-31 13F NORTHROP GRUMMAN COM 666807102 674 1 0.15 0 0.0469
2022-02-07 2021-12-31 13F NORTHROP GRUMMAN COM 666807102 673 39 6.15 0 0.0406
2021-11-08 2021-09-30 13F NORTHROP GRUMMAN COM 666807102 634 0 0.00 0 0.0390
2021-08-13 2021-06-30 13F NORTHROP GRUMMAN COM 666807102 634 15 2.42 0 0.0394
2021-05-10 2021-03-31 13F NORTHROP GRUMMAN COM 666807102 619 -94 -13.18 0 0.0375
2021-02-10 2020-12-31 13F NORTHROP GRUMMAN COM 666807102 713 7 0.99 0 0.0440
2020-11-10 2020-09-30 13F NORTHROP GRUMMAN COM 666807102 706 0 0.00 0 -100.00 0.0524
2020-08-05 2020-06-30 13F NORTHROP GRUMMAN COM 666807102 706 -19 -2.62 217 -0.91 0.0599
2020-05-07 2020-03-31 13F NORTHROP GRUMMAN COM 666807102 725 -9 -1.23 219 -13.10 0.0757
2020-02-10 2019-12-31 13F NORTHROP GRUMMAN COM 666807102 734 -18 -2.39 252 -10.64 0.0777
2019-11-05 2019-09-30 13F NORTHROP GRUMMAN COM 666807102 752 0 0.00 282 16.05 0.0948
2019-08-05 2019-06-30 13F NORTHROP GRUMMAN COM 666807102 752 0 0.00 243 19.70 0.0858
2019-04-30 2019-03-31 13F NORTHROP GRUMMAN COM 666807102 752 -511 -40.46 203 -34.30 0.0747
2019-01-22 2018-12-31 13F NORTHROP GRUMMAN COM 666807102 1,263 0 0.00 309 -22.94 0.1310
2018-10-26 2018-09-30 13F NORTHROP GRUMMAN COM 666807102 1,263 37 3.02 401 6.37 0.1603
2018-07-20 2018-06-30 13F NORTHROP GRUMMAN COM 666807102 1,226 28 2.34 377 -9.81 0.2434
2018-05-04 2018-03-31 13F NORTHROP GRUMMAN COM 666807102 1,198 280 30.50 418 48.75 0.4231
2018-03-15 2017-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 918 918 282 0.2839
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.