KPTI
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth +10.0% ·
share flow -0.7% ·
net new positions +9.1%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 44 | +9 | 9.58M | $93.71M | +14 | −5 |
| Q1 2026 | 35 | +2 | 5.82M | $32.39M | +7 | −5 |
| Q4 2025 | 33 | +1 | 2.81M | $20.64M | +2 | −1 |
| Q3 2025 | 12 | -2 | 1.46M | $9.53M | — | −2 |
| Q2 2025 | 11 | +1 | 1.75M | $7.53M | +1 | — |
| Q1 2025 | 7 | -3 | 1.00M | $3.75M | — | −3 |
| Q4 2024 | 10 | -1 | 16.45M | $11.13M | — | −1 |
| Q3 2024 | 10 | 0 | 14.64M | $12.15M | — | — |
| Q2 2024 | 10 | — | 15.87M | $13.77M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 518.27K | — | $2.23M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 2 | Adage Capital Partners ✦ | 421.32K | 0.0% | $1.82M | 0.0% | Held | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 236.64K | — | $1.02M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 4 | Citadel Advisors ✦ | 206.78K | -0.1% | $891,226 | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 5 | Marshall Wace ✦ | 128.45K | 0.0% | $553,624 | 0.0% | Held | 5 | SEC ↗ ×2 |
| 6 | Geode Capital Management ✦ (passive) | 91.84K | -7.8% | $395,920 | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 7 | Renaissance Technologies ✦ | 65.81K | +7.5% | $283,658 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | State Street Global Advisors ✦ (passive) | 33.30K | +12.9% | $143,501 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Millennium Management ✦ | 31.85K | -42.5% | $137,261 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 10 | T. Rowe Price ✦ | 10.89K | New | $47,000 | 0.0% | New | 1 | SEC ↗ |
| 11 | Fidelity (FMR) ✦ | 765 | — | $3,297 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| T. Rowe Price | $47,000 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 70.00K shares, $389 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 · 378 sh · $450
Officer · 19 sh · $38
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology