W.W. Grainger, Inc. (GWW) Ownership
GWW ownership summary
as of October 18, 2026- Institutions
- 76.9% of shares outstanding
- Insiders
- 6.28% of shares outstanding
- Shares outstanding
- 47.1M
- Float
- 43.1M shares available to trade
- Short interest
- 3.14% 1.2M shares short
- Days to cover
- 4.50 short interest up 18.9% vs prior month
- Institutions 76.92%
- Insiders 6.28%
- Other investors 16.80%
GWW top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 9.84% | 4.6M | $6.17B | −8,462 (−0.2%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 6.12% | 2.9M | $3.83B | −1,186 (−0.0%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 4.90% | 2.3M | $3.07B | −6,171 (−0.3%) | June 30, 2026 |
| 4 | State Street Corp | 4.27% | 2.0M | $2.67B | +14,900 (+0.7%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 2.91% | 1.4M | $1.82B | +139,151 (+11.3%) | June 30, 2026 |
| 6 | Wells Fargo & Co | 1.89% | 892K | $1.19B | −30,413 (−3.3%) | June 30, 2026 |
| 7 | Wellington Management Company LLP | 1.65% | 776K | $1.03B | −257,208 (−24.9%) | June 30, 2026 |
| 8 | ClearBridge Advisors, LLC | 1.60% | 754K | $1.00B | −91,351 (−10.8%) | June 30, 2026 |
| 9 | T. Rowe Price Associates, Inc. | 1.47% | 694K | $923.8M | −211,226 (−23.3%) | June 30, 2026 |
| 10 | Northern Trust Corp | 1.28% | 605K | $805.1M | −14,329 (−2.3%) | June 30, 2026 |
| 11 | Parnassus Investments LLC | 1.28% | 603K | $802.1M | −48,468 (−7.4%) | June 30, 2026 |
| 12 | Morgan Stanley - Brokerage Accounts | 1.21% | 569K | $757.8M | +23,919 (+4.4%) | June 30, 2026 |
| 13 | UBS Asset Mgmt Americas Inc | 1.17% | 551K | $733.7M | −86,955 (−13.6%) | June 30, 2026 |
| 14 | Franklin Templeton Inc | 1.16% | 545K | $725.7M | +3,681 (+0.7%) | June 30, 2026 |
| 15 | The Goldman Sachs Group Inc | 1.09% | 514K | $684.2M | +47,445 (+10.2%) | June 30, 2026 |
| 16 | FMR Inc | 1.08% | 511K | $679.5M | +195,969 (+62.3%) | June 30, 2026 |
| 17 | NORGES BANK | 1.03% | 487K | $648.2M | −27,217 (−5.3%) | June 30, 2026 |
| 18 | Bank of America Corp | 0.97% | 457K | $607.6M | −71,392 (−13.5%) | June 30, 2026 |
| 19 | Amvescap Plc. | 0.88% | 417K | $554.6M | +26,972 (+6.9%) | June 30, 2026 |
| 20 | Dimensional Fund Advisors, Inc. | 0.88% | 416K | $553.3M | +6,633 (+1.6%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 459K shares and 12 cut 854K.
GWW top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.02% | 1.4M | $1.90B | −3,006 (−0.2%) | August 31, 2026 |
| 2 | Vanguard 500 Index Investor | 2.41% | 1.1M | $1.51B | −16,864 (−1.5%) | September 30, 2026 |
| 3 | Vanguard MStar Mid Cap Index Instl | 2.03% | 958K | $1.28B | −12,026 (−1.2%) | September 30, 2026 |
| 4 | iShares Core S&P 500 ETF | 1.23% | 577K | $768.2M | −925 (−0.2%) | September 30, 2026 |
| 5 | Vanguard Wellington Inv | 1.22% | 575K | $765.7M | −193,442 (−25.2%) | June 30, 2026 |
| 6 | Fidelity 500 Index | 1.20% | 564K | $750.3M | +2,166 (+0.4%) | August 31, 2026 |
| 7 | Vanguard MStar Growth Index Investor | 1.14% | 538K | $715.9M | +25,245 (+4.9%) | September 30, 2026 |
| 8 | State Street® SPDR® S&P 500® ETF | 1.13% | 532K | $707.5M | — | September 30, 2026 |
| 9 | Parnassus Core Equity Investor | 0.92% | 431K | $573.9M | −56,534 (−11.6%) | September 30, 2026 |
| 10 | Vanguard MStar Mid Cap Growth ETF | 0.75% | 351K | $467.5M | +6,724 (+2.0%) | September 30, 2026 |
| 11 | Franklin Rising Dividends A | 0.61% | 285K | $379.2M | — | August 31, 2026 |
| 12 | Vanguard Dividend Appreciation ETF | 0.52% | 245K | $326.2M | −720 (−0.3%) | September 30, 2026 |
| 13 | State Street® IndstrlSelSectSPDR®ETF | 0.52% | 243K | $323.7M | −272 (−0.1%) | September 30, 2026 |
| 14 | Vanguard Institutional Index I | 0.49% | 229K | $305.0M | −2,931 (−1.3%) | September 30, 2026 |
| 15 | iShares Russell Mid-Cap Growth ETF | 0.45% | 210K | $279.3M | −225 (−0.1%) | September 30, 2026 |
| 16 | MFS Value A | 0.43% | 203K | $269.7M | −15,697 (−7.2%) | August 31, 2026 |
| 17 | iShares MSCI USA Quality Factor ETF | 0.40% | 188K | $250.1M | +176 (+0.1%) | September 30, 2026 |
| 18 | iShares Russell Mid-Cap ETF | 0.38% | 179K | $238.7M | +323 (+0.2%) | September 30, 2026 |
| 19 | ClearBridge Large Cap Growth A | 0.37% | 176K | $234.1M | — | September 30, 2026 |
| 20 | Fidelity Mid Cap Index | 0.35% | 165K | $220.0M | +688 (+0.4%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
GWW insider transactions
latest 12| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-02 | Deidra C Merriwether | Sell | $1,114.28 | 1,488 | $1.7M |
| 2026-03-24 | Deidra C Merriwether | Sell | $1,064.73 | 2,339 | $2.5M |
| 2026-01-29 | Ro Khanna | Sell | $1,081.99 | — | — |
| 2025-12-16 | Krantz Nancy L Berardinelli | Sell | $1,023.93 | 195 | $199,666 |
| 2025-12-05 | Donald G Macpherson | Sell | $972.57 | 12,163 | $11.8M |
| 2025-12-04 | Donald G Macpherson | Sell | $972.81 | 14,523 | $14.1M |
| 2025-11-10 | Ro Khanna | Buy | $950.45 | — | — |
| 2025-11-03 | Ro Khanna | Buy | $965.33 | — | — |
| 2025-09-29 | Ro Khanna | Sell | $947.58 | — | — |
| 2025-09-09 | Jonny M Leroy | Sell | $992.86 | 500 | $496,430 |
| 2025-05-23 | Krantz Nancy L Berardinelli | Sell | $1,075.20 | 280 | $301,056 |
| 2025-05-06 | Laurie R Thomson | Sell | $1,042.86 | 761 | $793,616 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
GWW shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns GWW
Institutional investors own 76.9% of Grainger's shares and insiders 6.28%. The largest holder is BlackRock Inc with 9.84% of the shares (4.6M), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 12 reduced their stake in the latest filings. Short interest is 3.14% of the float, or 4.50 days of average trading volume. The share count fell 30.7% since 2014.
Related: GWW analyst forecast, GWW key metrics, GWW dividend history. See the GWW stock overview for the latest quote and news.
GWW ownership FAQ
Who owns the most Grainger stock?
The largest shareholders of Grainger are BlackRock Inc (9.84%), Vanguard Capital Management, LLC (6.12%), Vanguard Portfolio Management, LLC (4.90%), State Street Corp (4.27%), Geode Capital Management, LLC (2.91%).
What percentage of Grainger is owned by institutions?
Institutions hold 76.9% of Grainger's shares outstanding; insiders hold 6.28%.
Which funds own Grainger?
The largest fund holders of Grainger are Vanguard MStar Total Stk Mkt Idx Invest (3.02%), Vanguard 500 Index Investor (2.41%), Vanguard MStar Mid Cap Index Instl (2.03%), iShares Core S&P 500 ETF (1.23%), Vanguard Wellington Inv (1.22%).
What is Grainger's short interest?
1.2M shares of Grainger were sold short, 3.14% of the float; at the average daily volume it would take 4.50 days to cover.
Are insiders buying or selling Grainger?
Of the latest 12 reported insider transactions in Grainger (since May 6, 2025), 2 were purchases and 10 were sales.
How many shares of Grainger are outstanding?
Grainger has 47.1M shares outstanding, of which 43.1M are in the public float.