Northrop Grumman Corporation
US ˙ NYSE ˙ US6668071029

SecurityNOC / Northrop Grumman Corporation
InstitutionWetherby Asset Management Inc
Latest Disclosed Ownership3,285 shares
Latest Disclosed Value $ 2,001,617
Wetherby Asset Management Inc reports 1.08% increase in ownership of NOC / Northrop Grumman Corporation

On November 14, 2025 - Wetherby Asset Management Inc filed a 13F-HR form disclosing ownership of 3,285 shares of Northrop Grumman Corporation (US:NOC) valued at $2,001,616 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 3,250 shares of Northrop Grumman Corporation. This represents a change in shares of 1.08% during the quarter. The current value of the position is $1,788,354 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)
2025-11-14 2025-09-30 13F NORTHROP GRUMMAN COM 666807102 3,285 35 1.08 2,002 23.21 0.0817
2025-08-14 2025-06-30 13F NORTHROP GRUMMAN COM 666807102 3,250 53 1.66 1,625 8.27 0.0723
2025-02-14 2024-12-31 13F NORTHROP GRUMMAN COM 666807102 3,197 -171 -5.08 1,500 -15.64 0.0719
2024-11-14 2024-09-30 13F NORTHROP GRUMMAN COM 666807102 3,368 78 2.37 1,779 23.99 0.0813
2024-08-14 2024-06-30 13F NORTHROP GRUMMAN COM 666807102 3,290 -517 -13.58 1,434 -21.30 0.0676
2024-05-15 2024-03-31 13F NORTHROP GRUMMAN COM 666807102 3,807 -147 -3.72 1,822 -1.57 0.0868
2024-02-14 2023-12-31 13F NORTHROP GRUMMAN COM 666807102 3,954 36 0.92 1,851 7.37 0.0964
2023-11-14 2023-09-30 13F NORTHROP GRUMMAN COM 666807102 3,918 392 11.12 1,725 7.28 0.0978
2023-08-14 2023-06-30 13F NORTHROP GRUMMAN COM 666807102 3,526 -402 -10.23 1,607 -11.36 0.0865
2023-05-12 2023-03-31 13F NORTHROP GRUMMAN COM 666807102 3,928 -68 -1.70 1,814 -16.83 0.1061
2023-02-14 2022-12-31 13F NORTHROP GRUMMAN COM 666807102 3,996 29 0.73 2,180 16.83 0.1400
2022-11-14 2022-09-30 13F NORTHROP GRUMMAN COM 666807102 3,967 434 12.28 1,866 10.35 0.1316
2022-08-15 2022-06-30 13F NORTHROP GRUMMAN COM 666807102 3,533 237 7.19 1,691 14.72 0.1154
2022-05-16 2022-03-31 13F NORTHROP GRUMMAN COM 666807102 3,296 177 5.67 1,474 22.12 0.0845
2022-02-14 2021-12-31 13F NORTHROP GRUMMAN COM 666807102 3,119 45 1.46 1,207 9.03 0.0678
2021-11-15 2021-09-30 13F NORTHROP GRUMMAN COM 666807102 3,074 96 3.22 1,107 2.31 0.0683
2021-08-16 2021-06-30 13F NORTHROP GRUMMAN COM 666807102 2,978 113 3.94 1,082 16.72 0.0660
2021-05-14 2021-03-31 13F NORTHROP GRUMMAN COM 666807102 2,865 -138 -4.60 927 1.31 0.0706
2021-02-11 2020-12-31 13F NORTHROP GRUMMAN COM 666807102 3,003 2,916 3,351.72 915 3,288.89 0.0620
2020-12-16 2020-09-30 13F/A-01 NORTHROP GRUMMAN COM 666807102 3,161 -270 997 0.0914
2020-12-16 2020-09-30 13F/A-02 NORTHROP GRUMMAN COM 666807102 87 -3,344 -97.46 27 -97.44 0.0811
2020-11-13 2020-09-30 13F NORTHROP GRUMMAN COM 666807102 3,249 -182 1,025 65,199.0001
2020-08-14 2020-06-30 13F NORTHROP GRUMMAN COM 666807102 3,431 -118 -3.32 1,054 -1.86 0.0999
2020-05-06 2020-03-31 13F NORTHROP GRUMMAN COM 666807102 3,549 184 5.47 1,074 -7.17 0.1206
2020-01-28 2019-12-31 13F NORTHROP GRUMMAN COM 666807102 3,365 -145 -4.13 1,157 -12.08 0.1140
2019-10-31 2019-09-30 13F NORTHROP GRUMMAN COM 666807102 3,510 62 1.80 1,316 18.13 0.1374
2019-07-25 2019-06-30 13F NORTHROP GRUMMAN COM 666807102 3,448 107 3.20 1,114 23.64 0.1219
2019-07-25 2019-03-31 13F/A-1 NORTHROP GRUMMAN COM 666807102 3,341 52 1.58 901 11.79 0.1122
2019-05-09 2019-03-31 13F NORTHROP GRUMMAN COM 666807102 3,341 52 901
2019-01-30 2018-12-31 13F NORTHROP GRUMMAN COM 666807102 3,289 74 2.30 806 -20.98 0.1140
2018-11-07 2018-09-30 13F NORTHROP GRUMMAN COM 666807102 3,215 74 2.36 1,020 5.59 0.1260
2018-07-24 2018-06-30 13F NORTHROP GRUMMAN COM 666807102 3,141 -96 -2.97 966 -14.51 0.1308
2018-05-04 2018-03-31 13F NORTHROP GRUMMAN COM 666807102 3,237 121 3.88 1,130 18.20 0.1560
2018-02-09 2017-12-31 13F NORTHROP GRUMMAN COM 666807102 3,116 50 1.63 956 8.27 0.1327
2017-11-13 2017-09-30 13F NORTHROP GRUMMAN COM 666807102 3,066 5 0.16 883 12.34 0.1313
2017-08-01 2017-06-30 13F NORTHROP GRUMMAN COM 666807102 3,061 -46 -1.48 786 6.36 0.1337
2017-04-27 2017-03-31 13F NORTHROP GRUMMAN COM 666807102 3,107 12 0.39 739 2.64 0.1329
2017-02-08 2016-12-31 13F NORTHROP GRUMMAN COM 666807102 3,095 -111 -3.46 720 4.96 0.1410
2016-11-14 2016-09-30 13F NORTHROP GRUMMAN COM 666807102 3,206 106 3.42 686 -0.44 0.1388
2016-08-10 2016-06-30 13F NORTHROP GRUMMAN COM 666807102 3,100 -8 -0.26 689 12.03 0.1527
2016-05-10 2016-03-31 13F NORTHROP GRUMMAN COM 666807102 3,108 109 3.63 615 8.66 0.1449
2016-02-08 2015-12-31 13F NORTHROP GRUMMAN COM 666807102 2,999 1 0.03 566 13.65 0.1357
2015-11-12 2015-09-30 13F NORTHROP GRUMMAN COM 666807102 2,998 327 12.24 498 17.73 0.1276
2015-08-12 2015-06-30 13F NORTHROP GRUMMAN COM 666807102 2,671 16 0.60 423 -1.17 0.1017
2015-05-08 2015-03-31 13F NORTHROP GRUMMAN COM 666807102 2,655 71 2.75 428 12.34 0.1042
2015-02-12 2014-12-31 13F NORTHROP GRUMMAN COM 666807102 2,584 67 2.66 381 15.11 0.0958
2014-11-03 2014-09-30 13F NORTHROP GRUMMAN COM 666807102 2,517 40 1.61 331 11.45 0.0923
2014-08-01 2014-06-30 13F NORTHROP GRUMMAN COM 666807102 2,477 -312 -11.19 297 -13.66 0.0838
2014-05-05 2014-03-31 13F/A-1 NORTHROP GRUMMAN COM 666807102 2,789 -118 -4.06 344 3.30 0.0986
2014-04-30 2014-03-31 13F NORTHROP GRUMMAN COM 666807102 2,789 344
2014-01-29 2013-12-31 13F NORTHROP GRUMMAN COM 666807102 2,907 -48 -1.62 333 18.51 0.0950
2013-10-29 2013-09-30 13F NORTHROP GRUMMAN COM 666807102 2,955 0 0.00 281 14.69 0.0877
2013-07-24 2013-06-30 13F NORTHROP GRUMMAN COM 666807102 2,955 2,955 245 0.0854
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.