Northrop Grumman
NOC · NYSE
Who owns NOC
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 40.8% of NOC’s shares.
- State Street Investment Management (US)9.3%
- Vanguard Capital Management, LLC6.3%
- BlackRock Institutional Trust Company, N.A.6.0%
- Capital International Investors4.1%
- Next 6 largest institutions15.1%
- All other shareholders59.2%
| Holder | Shares | % of shares |
|---|---|---|
| State Street Investment Management (US) | 13.17M | 9.27% |
| Vanguard Capital Management, LLC | 9.00M | 6.33% |
| BlackRock Institutional Trust Company, N.A. | 8.49M | 5.98% |
| Capital International Investors | 5.85M | 4.12% |
| Capital World Investors | 5.06M | 3.56% |
| Wellington Management Company, LLP | 4.93M | 3.47% |
| Vanguard Portfolio Management, LLC | 3.60M | 2.53% |
| Geode Capital Management, L.L.C. | 3.26M | 2.30% |
| Putnam Investment Management, L.L.C. | 2.52M | 1.77% |
| Morgan Stanley Smith Barney LLC | 2.06M | 1.45% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| American Funds Washington Mutual Investors Fund | 4.55M | 3.20% |
| Vanguard Total Stock Market Index Fund | 4.52M | 3.18% |
| Vanguard 500 Index Fund | 3.50M | 2.47% |
| iShares Core S&P 500 ETF | 1.78M | 1.25% |
| Fidelity 500 Index Fund | 1.73M | 1.22% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $106.32K (21 trades) of NOC on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| KRISHNA ARVIND | Award | 75 | $36.26K |
| Brown Marianne Catherine | Award | 96 | $46.41K |
| Warden Kathy J | Award | 35.91K | — |
| WELSH MARK A III | Sale | 4 | $2.22K |
| WELSH MARK A III | Sale | 2 | $1.11K |
| WELSH MARK A III | Sale | 2 | $1.11K |
| WELSH MARK A III | Sale | 2 | $1.10K |
| WELSH MARK A III | Sale | 6 | $3.30K |
| WELSH MARK A III | Sale | 10 | $5.48K |
| WELSH MARK A III | Sale | 31 | $16.97K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Bill KeatingHouse | Purchase | $1K–$15K | May 8, 2026 |
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
| Steve CohenHouse | Sale | $15K–$50K | Dec 29, 2025 |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.28M
- Days to cover
- 2.60
- % of shares outstanding
- 1.60%
- Average daily volume
- 875.39K
- Change since last report
- +1.3%
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