Northrop Grumman Corporation
MX ˙ BMV ˙ US6668071029
SecurityMX:NOC / Northrop Grumman Corporation
InstitutionWinch Advisory Services, LLC
Latest Disclosed Ownership2,191 shares
Latest Disclosed Value $ 1,494,471
Winch Advisory Services, LLC reports 2.10% increase in ownership of NOC / Northrop Grumman Corporation

On April 30, 2026 - Winch Advisory Services, LLC filed a 13F-HR form disclosing ownership of 2,191 shares of Northrop Grumman Corporation (MX:NOC) valued at $1,494,471 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 2,146 shares of Northrop Grumman Corporation. This represents a change in shares of 2.10% 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 NORTHROP GRUMMAN COM 666807102 2,191 45 2.10 1,494 22.16 0.3411
2026-02-03 2025-12-31 13F NORTHROP GRUMMAN COM 666807102 2,146 51 2.43 1,224 -4.15 0.2707
2025-11-12 2025-09-30 13F NORTHROP GRUMMAN COM 666807102 2,095 39 1.90 1,276 24.25 0.2872
2025-08-07 2025-06-30 13F NORTHROP GRUMMAN COM 666807102 2,056 -10 -0.48 1,028 -2.84 0.2509
2025-05-06 2025-03-31 13F NORTHROP GRUMMAN COM 666807102 2,066 59 2.94 1,058 12.33 0.2796
2025-01-14 2024-12-31 13F NORTHROP GRUMMAN COM 666807102 2,007 103 5.41 942 -6.37 0.2450
2024-10-21 2024-09-30 13F NORTHROP GRUMMAN COM 666807102 1,904 7 0.37 1,005 21.52 0.2780
2024-07-31 2024-06-30 13F NORTHROP GRUMMAN COM 666807102 1,897 25 1.34 827 -7.70 0.2365
2024-05-14 2024-03-31 13F NORTHROP GRUMMAN COM 666807102 1,872 88 4.93 896 7.43 0.2737
2024-01-18 2023-12-31 13F NORTHROP GRUMMAN COM 666807102 1,784 96 5.69 835 0.2769
2023-11-06 2023-09-30 13F NORTHROP GRUMMAN COM 666807102 1,688 -138 -7.56 1 0.2725
2023-08-08 2023-06-30 13F NORTHROP GRUMMAN COM 666807102 1,826 6 0.33 1 0.2988
2023-05-10 2023-03-31 13F NORTHROP GRUMMAN COM 666807102 1,820 -37 -1.99 1 -100.00 0.3259
2023-01-26 2022-12-31 13F NORTHROP GRUMMAN COM 666807102 1,857 -106 -5.40 1 -99.89 0.4321
2022-10-31 2022-09-30 13F NORTHROP GRUMMAN COM 666807102 1,963 -41 -2.05 923 -3.75 0.3964
2022-08-12 2022-06-30 13F NORTHROP GRUMMAN COM 666807102 2,004 -173 -7.95 959 -1.54 0.3913
2022-04-26 2022-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,177 -20 -0.91 974 14.59 0.3386
2022-02-04 2021-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,197 57 2.66 850 10.25 0.2811
2021-11-10 2021-09-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,140 8 0.38 771 -0.52 0.2688
2021-08-05 2021-06-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,132 194 10.01 775 23.60 0.2787
2021-05-03 2021-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,938 -105 -5.14 627 0.64 0.2513
2021-02-09 2020-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,043 56 2.82 623 -0.64 0.2589
2020-11-04 2020-09-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,987 -72 -3.50 627 -0.95 0.2655
2020-08-12 2020-06-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,059 -5 -0.24 633 1.44 0.3009
2020-05-13 2020-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,064 -12 -0.58 624 -12.61 0.3103
2020-02-12 2019-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,076 -274 -11.66 714 -18.96 0.3387
2019-11-13 2019-09-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,350 20 0.86 881 17.00 0.4588
2019-08-07 2019-06-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,330 65 2.87 753 23.24 0.3924
2019-05-13 2019-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,265 -3 -0.13 611 10.09 0.3378
2019-02-05 2018-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,268 -53 -2.28 555 -24.69 0.3087
2018-11-13 2018-09-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,321 99 4.46 737 7.75 0.3704
2018-08-13 2018-06-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,222 495 28.66 684 13.43 0.3686
2018-05-11 2018-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,727 321 22.83 603 39.91 0.3532
2018-02-13 2017-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,406 -68 -4.61 431 1.65 0.2591
2017-11-13 2017-09-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,474 71 5.06 424 17.78 0.2758
2017-08-07 2017-06-30 13F Northrop Grumman COM 666807102 1,403 -86 -5.78 360 1.69 0.2265
2017-05-01 2017-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,489 430 40.60 354 43.90 0.2246
2017-01-19 2016-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 1,059 -2,221 -67.71 246 -64.96 0.1693
2016-11-02 2016-09-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 3,280 726 28.43 702 23.59 0.5723
2016-08-10 2016-06-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,554 256 11.14 568 24.84 0.6888
2016-05-12 2016-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 2,298 2,298 0.00 455 0.7340
2015-11-13 2015-09-30 13F Northrop Grumman COM 666807102 0 -4,730 -100.00 0 -100.00
2015-08-11 2015-06-30 13F Northrop Grumman COM 666807102 4,730 4,730 750 0.4099
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.