COST
Costco Wholesale Corporation · Consumer Defensive · Discount Stores
Momentum inputs (comparable managers):
holder breadth +4.0% ·
share flow -1.1% ·
net new positions 0.0%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 184 | +1 | 256.45M | $240.04B | +5 | −3 |
| Q1 2026 | 185 | -1 | 248.86M | $247.50B | +3 | −5 |
| Q4 2025 | 185 | +1 | 272.68M | $230.44B | +2 | — |
| 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 | — |
| Q4 2024 | 19 | -1 | 44.19M | $40.47B | — | −1 |
| Q3 2024 | 19 | +1 | 25.55M | $22.62B | +1 | — |
| Q2 2024 | 18 | — | 26.66M | $22.64B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 43.46M | +0.2% | $40.22B | 0.6% | ▲ Add | 2 | SEC ↗ ×7 |
| 2 | BlackRock ✦ (passive) | 34.78M | -2.2% | $32.20B | 0.6% | ▼ Trim | 2 | SEC ↗ ×23 |
| 3 | State Street Global Advisors ✦ (passive) | 18.16M | -0.9% | $16.81B | 0.6% | ▼ Trim | 4 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 10.36M | +0.8% | $9.56B | 0.6% | ▲ Add | 6 | SEC ↗ ×2 |
| 5 | Morgan Stanley ✦ | 9.42M | — | $8.72B | 0.5% | n/c | 1 | SEC ↗ ×24 |
| 6 | Fidelity (FMR) ✦ | 7.95M | -15.5% | $7.36B | 0.4% | ▼ Trim | 2 | SEC ↗ ×6 |
| 7 | JPMorgan Chase ✦ | 6.52M | — | $6.04B | 0.2% | n/c | 1 | SEC ↗ ×42 |
| 8 | Capital World Investors ✦ | 3.86M | -2.2% | $3.57B | 0.5% | ▼ Trim | 6 | SEC ↗ |
| 9 | Goldman Sachs Group ✦ | 3.69M | — | $3.41B | 0.5% | n/c | 1 | SEC ↗ ×6 |
| 10 | Fisher Asset Management ✦ | 3.15M | +1.1% | $2.91B | 1.1% | ▲ Add | 6 | SEC ↗ |
| 11 | T. Rowe Price ✦ | 1.72M | +0.9% | $1.60B | 0.2% | ▲ Add | 6 | SEC ↗ ×2 |
| 12 | Citadel Advisors ✦ | 476.13K | +783.5% | $440.72M | 0.4% | ▲ Add | 5 | SEC ↗ ×2 |
| 13 | D. E. Shaw & Co. ✦ | 466.70K | +268.1% | $431.99M | 0.4% | ▲ Add | 6 | SEC ↗ ×2 |
| 14 | Arrowstreet Capital ✦ | 412.09K | +67.8% | $381.44M | 0.2% | ▲ Add | 6 | SEC ↗ |
| 15 | Adage Capital Partners ✦ | 390.28K | +12.2% | $361.25M | 0.6% | ▲ Add | 6 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 377.42K | -37.4% | $345.58M | 0.2% | ▼ Trim | 6 | SEC ↗ ×8 |
| 17 | Millennium Management ✦ | 332.11K | +108.5% | $307.41M | 0.3% | ▲ Add | 6 | SEC ↗ |
| 18 | Two Sigma Investments ✦ | 250.90K | +7.2% | $232.24M | 0.4% | ▲ Add | 6 | SEC ↗ |
| 19 | Wellington Management ✦ | 143.18K | -35.7% | $132.53M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 20 | Marshall Wace ✦ | 91.05K | -71.9% | $84.27M | 0.1% | ▼ Trim | 6 | SEC ↗ ×3 |
| 21 | Bridgewater Associates ✦ | 41.49K | +65.6% | $38.41M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 22 | Markel Group ✦ | 39.15K | 0.0% | $36.24M | 0.3% | Held | 6 | SEC ↗ |
| 23 | Gotham Asset Management ✦ | 16.05K | -1.9% | $14.86M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 24 | Renaissance Technologies ✦ | 13.02K | New | $12.06M | 0.0% | New | 1 | SEC ↗ |
| 25 | GAMCO Investors ✦ | 8.45K | +0.6% | $7.82M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 26 | Harris Associates (Oakmark) ✦ | 581 | 0.0% | $537,791 | 0.0% | Held | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Renaissance Technologies | $12.06M | 0.0% |
Exited
| Norges Bank | $5.69B | was 0.7% |
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 · 2.20K sh · $2.02M
Officer · 801 sh · $733,328
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Costco's comparable sales rose sharply in September, but a Wall Street analyst says part of that surge was fueled by…
Barrons