COST
Costco Wholesale Corporation · Consumer Defensive · Discount Stores
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -0.2% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 4 | 0 | 1.14M | $1.01B | n/a | −1 |
| Q2 2026 | 182 | +1 | 253.58M | $237.35B | +5 | −5 |
| Q1 2026 | 185 | -1 | 248.86M | $247.50B | +3 | −5 |
| Q4 2025 | 185 | +1 | 272.68M | $230.44B | +2 | n/a |
| Q3 2025 | 26 | +1 | 146.13M | $135.22B | +1 | −1 |
| Q2 2025 | 23 | 0 | 133.88M | $132.48B | +1 | −1 |
| Q1 2025 | 20 | +1 | 45.79M | $43.27B | +1 | n/a |
| Q4 2024 | 19 | -1 | 44.19M | $40.47B | n/a | −1 |
| Q3 2024 | 19 | +1 | 25.55M | $22.62B | +1 | n/a |
| Q2 2024 | 18 | n/a | 26.66M | $22.64B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 43.36M | n/a | $42.92B | 0.7% | n/c | 1 | SEC ↗ ×6 |
| 2 | BlackRock ✦ (passive) | 35.58M | n/a | $35.23B | 0.7% | n/c | 1 | SEC ↗ ×23 |
| 3 | State Street Global Advisors ✦ (passive) | 18.33M | +0.5% | $18.14B | 0.7% | ▲ Add | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 10.28M | +1.5% | $10.12B | 0.7% | ▲ Add | 5 | SEC ↗ ×2 |
| 5 | Fidelity (FMR) ✦ | 9.41M | n/a | $9.32B | 0.5% | n/c | 1 | SEC ↗ ×6 |
| 6 | Norges Bank ✦ (passive) | 5.75M | +2.5% | $5.69B | 0.7% | ▲ Add | 5 | SEC ↗ |
| 7 | Capital World Investors ✦ | 3.95M | -1.3% | $3.91B | 0.6% | ▼ Trim | 5 | SEC ↗ |
| 8 | Fisher Asset Management ✦ | 3.11M | -0.7% | $3.08B | 1.2% | ▼ Trim | 5 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 1.71M | +0.1% | $1.69B | 0.2% | ▲ Add | 5 | SEC ↗ ×2 |
| 10 | AQR Capital Management ✦ | 602.95K | +37.3% | $596.46M | 0.5% | ▲ Add | 5 | SEC ↗ ×9 |
| 11 | Adage Capital Partners ✦ | 347.88K | -9.0% | $344.38M | 0.6% | ▼ Trim | 5 | SEC ↗ |
| 12 | Marshall Wace ✦ | 323.49K | -40.8% | $320.24M | 0.4% | ▼ Trim | 5 | SEC ↗ ×2 |
| 13 | Arrowstreet Capital ✦ | 245.59K | +3728.4% | $243.12M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 14 | Two Sigma Investments ✦ | 234.12K | +90.3% | $231.76M | 0.4% | ▲ Add | 5 | SEC ↗ |
| 15 | Wellington Management ✦ | 222.67K | +7.3% | $220.43M | 0.0% | ▲ Add | 5 | SEC ↗ ×5 |
| 16 | Millennium Management ✦ | 159.26K | +212.6% | $157.66M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 17 | D. E. Shaw & Co. ✦ | 126.78K | -74.0% | $125.50M | 0.1% | ▼ Trim | 5 | SEC ↗ ×2 |
| 18 | Citadel Advisors ✦ | 53.89K | -89.8% | $53.35M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 19 | Markel Group ✦ | 39.15K | 0.0% | $38.76M | 0.3% | Held | 5 | SEC ↗ |
| 20 | Bridgewater Associates ✦ | 25.06K | -24.4% | $24.81M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 21 | Gotham Asset Management ✦ | 16.36K | +43.0% | $16.19M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 22 | GAMCO Investors ✦ | 8.39K | +16.7% | $8.31M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 23 | Harris Associates (Oakmark) ✦ | 581 | New | $575,155 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Harris Associates (Oakmark) | $575,155 | 0.0% |
Exited
| Renaissance Technologies | $114.63M | was 0.2% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 4,198 holders, 306.58M shares, $287.82B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 1.10K sh · $1.05M
Officer · 2.20K sh · $2.02M
Officer · 801 sh · $733,328
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology