Northrop Grumman Corporation
US ˙ NYSE ˙ US6668071029

SecurityNOC / Northrop Grumman Corporation
InstitutionCertified Advisory Corp
Latest Disclosed Ownership1,242 shares
Latest Disclosed Value $ 847,059
Certified Advisory Corp ownership in NOC / Northrop Grumman Corporation

On April 17, 2026 - Certified Advisory Corp filed a 13F-HR form disclosing ownership of 1,242 shares of Northrop Grumman Corporation (US:NOC) valued at $847,342 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 1,242 shares of Northrop Grumman Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $653,367 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)
2026-04-17 2026-03-31 13F NORTHROP GRUMMAN COM 666807102 1,242 0 0.00 847 19.63 0.0760
2026-01-12 2025-12-31 13F NORTHROP GRUMMAN COM 666807102 1,242 108 9.52 708 2.61 0.0645
2025-11-13 2025-09-30 13F NORTHROP GRUMMAN COM 666807102 1,134 2 0.18 691 22.12 0.0656
2025-08-14 2025-06-30 13F NORTHROP GRUMMAN COM 666807102 1,132 1 0.09 566 -2.42 0.0588
2025-05-08 2025-03-31 13F NORTHROP GRUMMAN COM 666807102 1,131 -2 -0.18 579 9.04 0.0656
2025-01-15 2024-12-31 13F NORTHROP GRUMMAN COM 666807102 1,133 -10 -0.87 532 -11.94 0.0577
2024-11-12 2024-09-30 13F NORTHROP GRUMMAN COM 666807102 1,143 212 22.77 604 48.52 0.0669
2024-08-13 2024-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 931 150 19.21 406 8.85 0.0509
2024-05-10 2024-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 781 101 14.85 374 17.30 0.0521
2024-02-09 2023-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 680 68 11.11 318 18.22 0.0483
2023-11-13 2023-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 612 612 269 0.0495
2021-08-16 2021-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 0 -101 -100.00 0 -100.00
2021-05-10 2021-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 101 0 0.00 33 6.45 0.0086
2020-07-27 2020-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 101 -12 -10.62 31 -8.82 0.0103
2020-04-27 2020-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 113 0 0.00 34 -12.82 0.0134
2020-01-29 2019-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 113 0 0.00 39 -7.14 0.0125
2019-11-12 2019-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 113 0 0.00 42 13.51 0.0146
2019-08-07 2019-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 113 0 0.00 37 19.35 0.0138
2019-05-07 2019-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 113 0 0.00 31 10.71 0.0130
2019-02-04 2018-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 113 -100 -46.95 28 -58.82 0.0145
2018-11-13 2018-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 213 100 88.50 68 94.29 0.0315
2018-08-13 2018-06-30 13F NORTHROP GRUMMAN CORP COM COM 666807102 113 0 0.00 35 -10.26 0.0195
2018-04-30 2018-03-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 113 101 841.67 39 1,200.00 0.0231
2018-02-22 2017-12-31 13F NORTHROP GRUMMAN CORP COM COM 666807102 12 12 3 0.0022
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.