PHAT
Phathom Pharmaceuticals, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +18.2% ·
share flow +30.0% ·
net new positions +15.4%
· formula
Broad accumulation: rising shares across more 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 | 19.29K | $137,566 | n/a | n/a |
| Q2 2026 | 70 | +3 | 31.41M | $340.87M | +8 | −5 |
| Q1 2026 | 70 | +3 | 28.31M | $314.61M | +9 | −6 |
| Q4 2025 | 67 | +2 | 22.91M | $380.11M | +2 | n/a |
| Q3 2025 | 13 | +2 | 15.27M | $179.73M | +2 | n/a |
| Q2 2025 | 8 | -4 | 10.36M | $99.34M | n/a | −4 |
| Q1 2025 | 9 | 0 | 3.37M | $21.12M | n/a | n/a |
| Q4 2024 | 9 | 0 | 2.95M | $23.99M | +2 | −2 |
| Q3 2024 | 8 | +2 | 2.05M | $37.04M | +3 | −1 |
| Q2 2024 | 6 | n/a | 1.55M | $15.95M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Millennium Management ✦ | 5.08M | +125.8% | $59.81M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.40M | +2.6% | $40.05M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 3 | The Vanguard Group ✦ (passive) | 3.22M | +15.4% | $37.85M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 4 | Geode Capital Management ✦ (passive) | 1.09M | +1.8% | $12.82M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 5 | State Street Global Advisors ✦ (passive) | 1.05M | +24.0% | $12.40M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 508.72K | New | $5.99M | 0.0% | New | 1 | SEC ↗ ×2 |
| 7 | JPMorgan Chase ✦ | 273.90K | n/a | $3.22M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 8 | Morgan Stanley ✦ | 255.57K | n/a | $3.01M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 9 | Goldman Sachs Group ✦ | 152.03K | n/a | $1.79M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 10 | Wellington Management ✦ | 146.46K | New | $1.72M | 0.0% | New | 1 | SEC ↗ ×3 |
| 11 | AQR Capital Management ✦ | 52.63K | +5.4% | $619,443 | 0.0% | ▲ Add | 4 | SEC ↗ ×4 |
| 12 | T. Rowe Price ✦ | 31.92K | +6.0% | $376,000 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 13 | Fidelity (FMR) ✦ | 7.00K | +19.0% | $82,383 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $5.99M | 0.0% |
| Wellington Management | $1.72M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 173 holders, 68.60M shares, $741.84M 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.