NOC · NYSE · CIK 0001133421
Northrop Grumman Corporation
Northrop Grumman Corporation holds 1 disclosed position, 1 of them carrying a sourced value.
Market cap$83.2bn17 Aug 2026
Disclosed stakes$50mall sized
Stakes as % of own value0.060%how much of it is other companies
Largest stakeFirefly Aerospace, Inc.$50m
Private targets0invisible to any 13F
Soft figures1modelled, reported or pending
Share price
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Equity stakes Northrop Grumman Corporation holds in other companies.
modelled, reported or pending
Select a row or a slice for its provenance: the filing it came from, when it was measured, and the arithmetic behind it if it was modelled.
The full register, from 13F filings
The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 31-mar-2026, where 1,852 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.
1,852 managers reported a position, together holding 118.1m shares, or 83.1% of the company. The 40 largest are listed.
Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.
What a reader needs to know to read these numbers
- Northrop Grumman does not file Form 13F. Its EDGAR filing history under CIK 0001133421 (the 'recent' submissions feed, which covers filings back to 24 February 2017, plus an older archive covering 2001 to 2017 not individually checked here) contains no 13F-HR or 13F-NT of any vintage, consistent with an operating company that is not an institutional investment manager.
- Vanguard reorganisation, per the pattern already established for Broadcom and Lockheed Martin in this project: The Vanguard Group's own CIK (0000102909) filed Form 13F-NT (a notice of no reportable holdings, not a holdings filing) for the quarters ended 31 March 2026 (filed 8 May 2026) and 30 June 2026 (filed 13 August 2026), following a January 2026 internal reorganisation that split Vanguard's reporting across several filers. The last Vanguard 13F-HR with actual holdings was filed 29 January 2026 for the quarter ended 31 December 2025 (13,740,721 Northrop Grumman shares), which is the row used here. Do not add any other 'Vanguard'-named filer for the same period; none was checked for a Northrop Grumman position in this pass, and stacking one on top of this row would double count.
- State Street is classified here as esop_trust rather than index. Northrop Grumman's 2026 DEF 14A states that a State Street subsidiary is trustee for Northrop Grumman's defined benefit and defined contribution plan trusts, and separately, elsewhere in the same proxy, that 8,355,658 shares held as of 31 December 2023 in the Defined Contribution Plans Master Trust for the Northrop Grumman Savings Plan and the Northrop Grumman Financial Security and Savings Program were held for that purpose with State Street Bank and Trust Company as trustee. That 8,355,658 was about 60 percent of State Street's total 13,860,192-share position as of the same date (per the proxy's own Schedule 13G/A citation, dated 30 January 2024). No more recent split between the plan-trustee tranche and State Street Global Advisors' independent index/investment-management tranche is available, but given the plan-trustee tranche's dominant and stable share of the total historically, and by analogy to Lockheed Martin's near-identical State Street trustee arrangement, the current Form 13F-HR position (13,169,195 shares, 30 June 2026) is recorded as esop_trust rather than index.
- The Schedule 13G/A citations for State Street (30 January 2024, reporting 31 December 2023 data) and BlackRock (12 November 2024, reporting 30 September 2024 data) in the 3 April 2026 proxy are stale relative to each manager's own Form 13F-HR for the quarter ended 30 June 2026. The register uses the fresher 13F-HR figures for State Street and BlackRock rather than the proxy's 13G/A citations. Capital International Investors has no comparably fresh 13F on record under a name checked in this pass, so its proxy-cited 13G/A (13 August 2025, reporting 30 June 2025 data) is used instead; it is the freshest sourced figure available for that holder.
- Percentages are computed by this research against a stated share count, not taken from a filing. Rows dated 30 June 2026 use 142,063,026 shares outstanding as of 16 July 2026 (Q2 FY2026 10-Q cover page). The Vanguard row (31 December 2025) uses 141,921,621 shares as of 22 January 2026 (FY2025 10-K cover page). The Capital International and insider rows use 142,033,159 shares as of 20 March 2026, the denominator the 2026 proxy itself uses for its 'Percent of Class' column.
- Self-check: summing shares for every register row that is neither a member nor an aggregate (State Street, Vanguard, Capital International, BlackRock, Wellington, Morgan Stanley, Geode, Bank of America, Invesco, JPMorgan, FMR) gives 69,939,270 shares, or 49.2 percent of the 142,063,026 shares outstanding. This is inside the 15 to 55 percent sanity band but toward its upper end, consistent with a small (142 million share) float with a heavily concentrated top-11 institutional base; no instrument or basis mixing was found in the underlying 13F/13G lines.
- Northrop Grumman's own equity-method accounting policy statement (10-Q and 10-K: 'Investments in equity securities and joint ventures where the company has significant influence, but not control, are accounted for using the equity method') is not accompanied anywhere in the FY2025 10-K or the Q1/Q2 FY2026 10-Qs by a named investee, a segment note, or a dollar balance broken out by counterparty, unlike Lockheed Martin's named ULA joint-venture disclosure. Northrop discloses only a combined 'portfolio of marketable securities including investments to partially fund non-qualified employee benefit plans as well as investments in companies that are advancing or developing technologies applicable to our business,' with the non-benefit-plan, non-NAV Level 3 tranche of that combined portfolio at $22 million (30 June 2026) and $24 million (31 December 2025). No individual company within that tranche is named, so per the brief's rule against distributing a combined balance across members, no holding entry is recorded for it; the combined figures are disclosed here instead.
- The Q2 FY2026 10-Q additionally discloses, without naming a counterparty: 'During the second quarter of 2026, the company sold its investment in a public company for $107 million and recognized a related gain of $35 million.' This could plausibly relate to Northrop's reported $50 million Firefly Aerospace investment (Firefly, ticker FLY, IPO'd on Nasdaq in August 2025, so a 2026 sale of 'a public company' investment is timing-consistent with a post-lockup exit), but the filing does not name the company and no independent source confirms the identity, so this is recorded as an open question in unknowns rather than linked to the Firefly holding.
- Market capitalisation of $83.23 billion is the figure published by the cited source as of 17 August 2026 (last trade referenced: $585.87 close on 14 August 2026). Cross-check: 142,063,026 shares at $585.87 implies approximately $83.24 billion, consistent to three significant figures.
Looked for, not found
Recorded rather than filled in. Each of these is a place where a number could have been invented and was not.
- Whether Northrop Grumman still holds its Firefly Aerospace position as of the most recent 10-Q. The Q2 FY2026 10-Q discloses an unnamed sale of 'its investment in a public company' for $107 million with a $35 million gain during the quarter; it is not confirmed whether this is the Firefly stake, a different technology investee that also went public, or a benefit-plan-trust holding unrelated to the strategic technology portfolio.
- The share count, share class (common vs. a series of preferred), and resulting percentage of Firefly Aerospace corresponding to Northrop's reported $50 million investment. Firefly's IPO prospectus (Form 424B4) discloses per-share pricing for its Series D-1 through D-4 preferred rounds but names only AE Industrial Partners-affiliated purchasers in its financing tables; Northrop Grumman does not appear in any purchaser, 5-percent-holder, or beneficial-ownership table found in that filing.
- The identity of the individual technology companies comprising Northrop's combined Level 3 'investments in companies that are advancing or developing technologies applicable to our business' balance ($22 million at 30 June 2026, $24 million at 31 December 2025). Neither the 10-Q nor the FY2025 10-K names any individual company in that portfolio.
- Whether Northrop Grumman holds any equity-method joint venture comparable in scale or disclosure to Lockheed Martin's 50 percent stake in United Launch Alliance. Searched the FY2025 10-K and both FY2026 10-Qs full text for 'equity method', 'unconsolidated', 'joint venture', 'non-marketable', 'measurement alternative' and 'affiliate'; the only hits were a generic accounting-policy sentence and general risk-factor language about joint ventures Northrop participates in, none of which names a specific entity or carrying value.
- Capital International Investors' (Capital Research and Management Company) current Form 13F filer CIK was not identified or checked directly within the time budget; its register row instead relies on the 3 April 2026 DEF 14A's citation of Capital International's own 13 August 2025 Schedule 13G/A.
- Norges Bank (Norway's sovereign wealth fund) was not checked in this pass. Consistent with findings on other companies researched in this project, sovereign wealth funds investing through global index mandates typically do not file Form 13F, so a share count would need a different disclosure source.
- Whether any 13F-HR was ever filed under Northrop Grumman's own CIK (0001133421) prior to 24 February 2017. The 'recent' EDGAR submissions feed covers only 2017 onward; an older archive segment (filings from 2001 to 2017, per the submissions JSON's 'files' index) exists but was not individually checked within the time budget.