Northrop Grumman Corporation
US ˙ NYSE ˙ US6668071029

SecurityNOC / Northrop Grumman Corporation
InstitutionWhittier Trust Co
Latest Disclosed Ownership6,957 shares
Latest Disclosed Value $ 4,840,611
Whittier Trust Co reports 7.17% decrease in ownership of NOC / Northrop Grumman Corporation

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 6,957 shares of Northrop Grumman Corporation (US:NOC) valued at $4,746,344 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 7,494 shares of Northrop Grumman Corporation. This represents a change in shares of -7.17% during the quarter. The current value of the position is $3,659,799 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)
2026-04-28 2026-03-31 13F NORTHROP common 666807102 6,957 -537 -7.17 4,841 5.79 0.0546
2026-01-26 2025-12-31 13F NORTHROP common 666807102 7,494 162 2.21 4,576 2.37 0.0496
2025-10-31 2025-09-30 13F NORTHROP GRUMMAN common 666807102 7,332 50 0.69 4,469 22.77 0.0509
2025-07-30 2025-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,282 -76 -1.03 3,641 -3.37 0.0439
2025-05-02 2025-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,358 1 0.01 3,767 9.13 0.0525
2025-02-11 2024-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,357 -114 -1.53 3,452 -12.50 0.0455
2024-10-21 2024-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,471 77 1.04 3,945 22.40 0.0528
2024-07-29 2024-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,394 74 1.01 3,223 -7.99 0.0457
2024-05-02 2024-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,320 -109 -1.47 3,504 0.75 0.0511
2024-01-11 2023-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 7,429 -1,258 -14.48 3,478 -9.05 0.0564
2023-10-27 2023-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 8,687 131 1.53 3,824 -1.95 0.0680
2023-07-24 2023-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 8,556 64 0.75 3,900 -0.54 0.0678
2023-04-21 2023-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 8,492 2,550 42.91 3,921 20.95 0.0714
2023-01-25 2022-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 5,942 702 13.40 3,242 31.53 0.0631
2022-10-21 2022-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 5,240 387 7.97 2,464 6.12 0.0516
2022-07-28 2022-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 4,853 -95 -1.92 2,322 4.93 0.0469
2022-04-29 2022-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 4,948 1,512 44.00 2,213 66.39 0.0373
2022-01-19 2021-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,436 650 23.33 1,330 32.60 0.0216
2021-11-01 2021-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,786 0 0.00 1,003 -0.89 0.0183
2021-07-29 2021-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,786 0 0.00 1,012 12.20 0.0180
2021-04-26 2021-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,786 382 15.89 902 23.06 0.0175
2021-01-29 2020-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,404 181 8.14 733 4.42 0.0157
2020-10-30 2020-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,223 -801 -26.49 702 -24.52 0.0167
2020-07-10 2020-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,024 -111 -3.54 930 -2.00 0.0258
2020-04-27 2020-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,135 86 2.82 949 -9.53 0.0310
2020-01-31 2019-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,049 32 1.06 1,049 -7.25 0.0275
2019-10-18 2019-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,017 79 2.69 1,131 19.18 0.0324
2019-07-23 2019-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,938 0 0.00 949 19.82 0.0279
2019-04-29 2019-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,938 -135 -4.39 792 5.18 0.0242
2019-02-07 2018-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,073 -32 -1.03 753 -23.55 0.0259
2018-10-23 2018-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 3,105 263 9.25 985 12.70 0.0307
2018-07-27 2018-06-30 13F/A-1 NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,842 0 0.00 874 -11.90 0.0289
2018-07-20 2018-06-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 906 -1,936 108
2018-05-01 2018-03-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 2,842 1,361 91.90 992 118.02 0.0333
2018-02-07 2017-12-31 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 1,481 84 6.01 455 13.18 0.0159
2017-10-23 2017-09-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 1,397 65 4.88 402 17.54 0.0147
2017-07-20 2017-06-30 13F NORTHROP GRUMMAN US LARGE-CAP EQUITIES 666807102 1,332 0 0.00 342 7.89 0.0132
2017-04-26 2017-03-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 1,332 0 0.00 317 2.26 0.0128
2017-01-18 2016-12-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 1,332 0 0.00 310 8.77 0.0132
2016-11-10 2016-09-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 1,332 0 0.00 285 -3.72 0.0124
2016-07-28 2016-06-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 1,332 0 0.00 296 12.12 0.0130
2016-04-28 2016-03-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 1,332 -1,275 -48.91 264 -46.34 0.0117
2016-02-10 2015-12-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 2,607 73 2.88 492 16.86 0.0223
2015-11-12 2015-09-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 2,534 0 0.00 421 4.73 0.0205
2015-08-13 2015-06-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 2,534 400 18.74 402 17.20 0.0178
2015-05-05 2015-03-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 2,134 2,134 0.00 343 0.0157
2015-02-04 2014-12-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 0 -906 -100.00 0 -100.00
2014-11-07 2014-09-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 906 0 0.00 119 10.19 0.0058
2014-08-04 2014-06-30 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 906 266 41.56 108 36.71 0.0053
2014-05-01 2014-03-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 640 0 0.00 79 8.22 0.0040
2014-02-05 2013-12-31 13F NORTHROP GRUMMAN US LARGE CAP EQUITIES 666807102 640 -5,845 -90.13 73 -88.19 0.0037
2013-11-18 2013-09-30 13F NORTHROP GRUMMAN COM 666807102 6,485 0 0.00 618 15.08 0.0334
2013-08-14 2013-06-30 13F NORTHROP GRUMMAN COM 666807102 6,485 6,485 537 0.0301
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.