KMX
CarMax, Inc. · Consumer Cyclical · Auto - Dealerships
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow -5.5% ·
net new positions +12.5%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 124 | +2 | 99.22M | $5.25B | +9 | −6 |
| Q1 2026 | 124 | -1 | 108.50M | $4.50B | +6 | −8 |
| Q4 2025 | 125 | 0 | 109.49M | $4.23B | +2 | −1 |
| Q3 2025 | 21 | -1 | 57.36M | $2.57B | — | −2 |
| Q2 2025 | 20 | -1 | 60.42M | $4.06B | — | −1 |
| Q1 2025 | 18 | +1 | 29.27M | $2.28B | +1 | — |
| Q4 2024 | 17 | 0 | 26.03M | $2.13B | +1 | −1 |
| Q3 2024 | 16 | +2 | 19.08M | $1.48B | +2 | — |
| Q2 2024 | 14 | — | 20.18M | $1.48B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | PRIMECAP Management ✦ | 5.28M | -2.4% | $408.86M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 2 | Norges Bank ✦ (passive) | 3.97M | -25.1% | $307.51M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 3.66M | +0.4% | $282.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 3.66M | +0.4% | $282.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Wellington Management ✦ | 1.51M | -18.8% | $116.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | Wellington Management ✦ | 1.51M | -18.8% | $116.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | Wellington Management ✦ | 1.51M | -18.8% | $116.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Wellington Management ✦ | 1.51M | -18.8% | $116.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 854.78K | +10.7% | $66.14M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 854.78K | +10.7% | $66.14M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 765.62K | +56.6% | $59.14M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 765.62K | +56.6% | $59.14M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 765.62K | +56.6% | $59.14M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 14 | Marshall Wace ✦ | 633.37K | -45.4% | $49.01M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 15 | Marshall Wace ✦ | 633.37K | -45.4% | $49.01M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 562.96K | -27.6% | $43.56M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 17 | Millennium Management ✦ | 468.48K | +322.3% | $36.25M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Adage Capital Partners ✦ | 375.05K | New | $29.02M | 0.1% | New | 1 | SEC ↗ |
| 19 | Renaissance Technologies ✦ | 333.60K | New | $25.81M | 0.0% | New | 1 | SEC ↗ |
| 20 | T. Rowe Price ✦ | 221.05K | +0.8% | $17.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | T. Rowe Price ✦ | 221.05K | +0.8% | $17.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Baillie Gifford ✦ | 169.27K | -2.4% | $13.10M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | Baillie Gifford ✦ | 169.27K | -2.4% | $13.10M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 24 | Baillie Gifford ✦ | 169.27K | -2.4% | $13.10M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 25 | Markel Group ✦ | 136.50K | 0.0% | $10.56M | 0.1% | Held | 2 | SEC ↗ |
| 26 | Markel Group ✦ | 136.50K | 0.0% | $10.56M | 0.1% | Held | 2 | SEC ↗ |
| 27 | Gotham Asset Management ✦ | 117.96K | +13.1% | $9.13M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 28 | D. E. Shaw & Co. ✦ | 9.20K | -19.3% | $711,509 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | D. E. Shaw & Co. ✦ | 9.20K | -19.3% | $711,509 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Adage Capital Partners | $29.02M | 0.1% |
| Renaissance Technologies | $25.81M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 540 holders, 151.61M shares, $6.21B 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.