ACLX
Arcellx, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +11.1% ·
share flow +8.8% ·
net new positions +10.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q1 2026 | 79 | -11 | 20.14M | $2.28B | +11 | −23 |
| Q4 2025 | 90 | +2 | 26.91M | $1.75B | +4 | −1 |
| Q3 2025 | 15 | -1 | 21.54M | $1.77B | — | −2 |
| Q2 2025 | 14 | -2 | 18.84M | $1.24B | — | −2 |
| Q1 2025 | 13 | 0 | 6.16M | $404.16M | +1 | −1 |
| Q4 2024 | 13 | +2 | 5.38M | $412.92M | +4 | −2 |
| Q3 2024 | 10 | +1 | 3.34M | $279.00M | +2 | −1 |
| Q2 2024 | 9 | — | 3.07M | $169.41M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 1.90M | +16.6% | $158.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 1.90M | +16.6% | $158.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 974.97K | +4.2% | $81.43M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 974.97K | +4.2% | $81.43M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Adage Capital Partners ✦ | 292.01K | -9.7% | $24.39M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | Duquesne Family Office ✦ | 74.10K | 0.0% | $6.19M | 0.2% | Held | 2 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 25.13K | -27.1% | $2.10M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Wellington Management ✦ | 20.97K | +15.2% | $1.75M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | Wellington Management ✦ | 20.97K | +15.2% | $1.75M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Wellington Management ✦ | 20.97K | +15.2% | $1.75M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | Wellington Management ✦ | 20.97K | +15.2% | $1.75M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Citadel Advisors ✦ | 17.09K | New | $1.43M | 0.0% | New | 1 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 16.54K | -1.9% | $1.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 16.54K | -1.9% | $1.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Gotham Asset Management ✦ | 13.00K | +37.6% | $1.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | D. E. Shaw & Co. ✦ | 6.30K | New | $526,531 | 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
| Citadel Advisors | $1.43M | 0.0% |
| D. E. Shaw & Co. | $526,531 | 0.0% |
Exited
| Renaissance Technologies | $1.49M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 236 holders, 55.96M shares, $5.94B 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.