Northrop Grumman Corporation
US ˙ NYSE ˙ US6668071029

SecurityNOC / Northrop Grumman Corporation
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership3,276 shares
Latest Disclosed Value $ 1,868,399
Parallel Advisors, LLC ownership in NOC / Northrop Grumman Corporation

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 3,276 shares of Northrop Grumman Corporation (US:NOC) valued at $1,868,008 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 3,362 shares of Northrop Grumman Corporation. This represents a change in shares of -2.56% during the quarter. The current value of the position is $1,723,373 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (NOC) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

NOC / Northrop Grumman Corporation Historical Put/Call Ratio
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)
2026-02-11 2025-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,276 -86 -2.56 1,868 -8.79 0.0342
2025-11-13 2025-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,362 214 6.80 2,049 30.11 0.0375
2025-07-08 2025-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,148 85 2.78 1,574 0.38 0.0315
2025-04-08 2025-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,063 132 4.50 1,568 14.04 0.0354
2025-02-10 2024-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,931 -238 -7.51 1,376 -17.81 0.0309
2024-11-13 2024-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,169 323 11.35 1,674 34.92 0.0393
2024-08-08 2024-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,846 -179 -5.92 1,241 -14.31 0.0318
2024-05-06 2024-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,025 19 0.63 1,448 2.84 0.0392
2024-02-12 2023-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,006 -22 -0.73 1,407 5.55 0.0417
2024-05-20 2023-09-30 13F/A-1 NORTHROP GRUMMAN CORP COM Stock 666807102 3,028 382 14.44 1,333 10.53 0.0444
2023-11-14 2023-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,028 382 1,333 0.0444
2024-05-20 2023-06-30 13F/A-1 NORTHROP GRUMMAN CORP COM Stock 666807102 2,646 -4 -0.15 1,206 -1.47 0.0388
2023-08-04 2023-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,646 -4 1,206 0.0388
2024-05-20 2023-03-31 13F/A-1 NORTHROP GRUMMAN CORP COM Stock 666807102 2,650 -109 -3.95 1,224 -18.67 0.0413
2023-04-25 2023-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,650 -109 1,224 0.0413
2023-02-06 2022-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,759 45 1.66 1,506 17.95 0.0653
2022-11-10 2022-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,714 10 0.37 1,276 -1.39 0.0587
2022-08-01 2022-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,704 74 2.81 1,294 8.56 0.0594
2022-04-28 2022-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,630 118 4.70 1,192 22.63 0.0473
2022-01-20 2021-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,512 176 7.53 972 15.58 0.0361
2021-11-02 2021-09-30 13F/A-1 NORTHROP GRUMMAN CORP COM Stock 666807102 2,336 112 5.04 841 3.96 0.0339
2021-08-06 2021-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,224 -108 -4.63 809 7.15 0.0343
2021-04-23 2021-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,332 20 0.87 755 7.09 0.0356
2021-02-02 2020-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,312 -95 -3.95 705 -7.11 0.0383
2020-10-27 2020-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,407 -27 -1.11 759 1.47 0.0470
2020-07-16 2020-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,434 -201 -7.63 748 -6.15 0.0488
2020-04-27 2020-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,635 -50 -1.86 797 -13.74 0.0645
2020-01-30 2019-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,685 93 3.59 924 -4.94 0.0693
2019-11-01 2019-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,592 54 2.13 972 18.54 0.0832
2019-08-05 2019-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,538 -14 -0.55 820 19.19 0.0800
2019-05-01 2019-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,552 -139 -5.17 688 4.40 0.0772
2019-02-05 2018-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,691 -4 -0.15 659 -22.92 0.0919
2018-11-01 2018-09-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,695 -158 -5.54 855 -2.51 0.1062
2018-07-30 2018-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,853 -86 -2.93 877 -14.52 0.1254
2018-05-08 2018-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,939 -93 -3.07 1,026 10.20 0.1602
2018-02-13 2017-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,032 29 0.97 931 3.91 0.1523
2017-11-15 2017-09-30 13F/A-1 NORTHROP GRUMMAN CORP COM Stock 666807102 3,003 -10 -0.33 896 12.99 0.1541
2017-08-07 2017-06-30 13F NORTHROP GRUMMAN CORP COM Stock 666807102 3,013 16 0.53 793 7.74 0.1496
2017-05-12 2017-03-31 13F/A-1 NORTHROP GRUMMAN CORP COM Stock 666807102 2,997 166 5.86 736 11.85 0.1463
2017-05-12 2017-03-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,997 736
2017-02-14 2016-12-31 13F NORTHROP GRUMMAN CORP COM Stock 666807102 2,831 2,831 658 0.1545
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F NORTHROP GRUMMAN CORP COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F NORTHROP GRUMMAN CORP COM Stock Call 2,224 809 n/a n/a n/a
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.