諾斯羅普格魯曼公司
MX ˙ BMV ˙ US6668071029
SecurityMX:NOC / Northrop Grumman Corporation
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership4,969 shares
Latest Disclosed Value $ 3,390,331
Summit Trail Advisors, Llc reports 2.10% increase in ownership of NOC / Northrop Grumman Corporation

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 4,969 shares of Northrop Grumman Corporation (MX:NOC) valued at $3,390,331 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,867 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F NORTHROP GRUMMAN COM 666807102 4,969 102 2.10 3,390 22.16 0.0486
2026-02-17 2025-12-31 13F NORTHROP GRUMMAN COM 666807102 4,867 -360 -6.89 2,775 -12.85 0.0480
2025-11-14 2025-09-30 13F NORTHROP GRUMMAN COM 666807102 5,227 2,970 131.59 3,185 182.27 0.0440
2025-08-14 2025-06-30 13F NORTHROP GRUMMAN COM 666807102 2,257 2,257 1,128 0.0194
2025-01-29 2024-12-31 13F NORTHROP GRUMMAN COM 666807102 0 -927 -100.00 0 -100.00
2024-11-12 2024-09-30 13F NORTHROP GRUMMAN COM 666807102 927 32 3.58 490 25.38 0.0121
2024-08-13 2024-06-30 13F Northrop Grumman Corp Com COM 666807102 895 80 9.82 390 0.00 0.0103
2024-04-23 2024-03-31 13F NORTHROP GRUMMAN COM 666807102 815 52 6.82 390 9.24 0.0104
2024-02-06 2023-12-31 13F NORTHROP GRUMMAN COM 666807102 763 -212 -21.74 357 -16.78 0.0118
2023-10-30 2023-09-30 13F NORTHROP GRUMMAN COM 666807102 975 144 17.33 429 13.49 0.0158
2023-07-25 2023-06-30 13F NORTHROP GRUMMAN COM 666807102 831 831 379 0.0143
2023-05-04 2023-03-31 13F Northrop Grumman Corp Com COM 666807102 0 -378 -100.00 0 -100.00
2023-02-07 2022-12-31 13F Northrop Grumman Corp Com COM 666807102 378 378 206 0.0092
2018-08-10 2018-06-30 13F NORTHROP GRUMMAN CORP COM EQUITY 666807102 0 -713 -100.00 0 -100.00
2018-05-22 2018-03-31 13F/A-1 NORTHROP GRUMMAN CORP COM EQUITY 666807102 713 35 5.16 212 0.00 0.0360
2018-05-21 2018-03-31 13F NORTHROP GRUMMAN CORP COM EQUITY 666807102 211,721 211,043 212
2018-02-14 2017-12-31 13F NORTHROP GRUMMAN CORP HOLDING EQUITY 666807102 678 678 212 0.0268
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.