MAX
MediaAlpha, Inc. · Communication Services · Internet Content & Information
Momentum inputs (comparable managers):
holder breadth -5.6% ·
share flow +2.4% ·
net new positions -5.9%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 15.52K | $165,732 | n/a | n/a |
| Q2 2026 | 75 | +1 | 19.30M | $241.58M | +5 | −5 |
| Q1 2026 | 78 | -6 | 19.46M | $181.93M | +3 | −9 |
| Q4 2025 | 84 | +2 | 21.71M | $281.07M | +2 | n/a |
| Q3 2025 | 17 | -1 | 16.29M | $185.34M | n/a | −1 |
| Q2 2025 | 15 | +1 | 11.63M | $127.35M | +1 | n/a |
| Q1 2025 | 11 | -1 | 5.10M | $47.13M | n/a | −1 |
| Q4 2024 | 12 | 0 | 5.31M | $59.92M | +1 | −1 |
| Q3 2024 | 11 | 0 | 3.49M | $63.29M | n/a | n/a |
| Q2 2024 | 11 | n/a | 3.56M | $46.87M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.57M | -10.8% | $40.66M | 0.0% | ▼ Trim | 2 | SEC ↗ ×10 |
| 2 | The Vanguard Group ✦ (passive) | 2.60M | -9.0% | $29.60M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 3 | JPMorgan Chase ✦ | 2.12M | n/a | $24.09M | 0.0% | n/c | 1 | SEC ↗ ×12 |
| 4 | Millennium Management ✦ | 1.43M | +680.9% | $16.27M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 5 | Goldman Sachs Group ✦ | 1.28M | n/a | $14.57M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 6 | Renaissance Technologies ✦ | 945.10K | +22.4% | $10.76M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 7 | Morgan Stanley ✦ | 872.03K | n/a | $9.92M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 8 | AQR Capital Management ✦ | 770.68K | +28.1% | $8.77M | 0.0% | ▲ Add | 6 | SEC ↗ ×5 |
| 9 | Geode Capital Management ✦ (passive) | 769.77K | +0.7% | $8.76M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 10 | State Street Global Advisors ✦ (passive) | 672.13K | +3.0% | $7.65M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Arrowstreet Capital ✦ | 520.45K | +7.5% | $5.92M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 12 | D. E. Shaw & Co. ✦ | 454.88K | -49.2% | $5.18M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 13 | Marshall Wace ✦ | 182.74K | +10.3% | $2.08M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 14 | Gotham Asset Management ✦ | 42.44K | +10.2% | $483,013 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 28.78K | +17.6% | $328,000 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 22.52K | -65.9% | $256,323 | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 17 | Fidelity (FMR) ✦ | 4.11K | +61.2% | $46,732 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Citadel Advisors | $1.27M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 160 holders, 47.09M shares, $421.19M 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 · 3.00K sh · $35,310
Director · 1.07K sh · $11,105
Director · 6.67K sh · $69,158
Director · 1.07K sh · $10,800
Director · 6.67K sh · $67,419
Director · 1.07K sh · $10,824
Director · 6.67K sh · $67,667
Officer, Director · 2.03K sh · $22,377
Officer, Director · 24.00K sh · $240,943
Officer · 3.00K sh · $28,200
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
9.8% of class · View original SEC filing ↗