$16.45
-0.45 (-2.66%)
USD · as of 2026-08-19 · marketstack
% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | +5,138,316 | $57M | OPEN |
| Soleus Capital Management, L.P. | +4,500,000 | $50M | OPEN |
| Avidity Partners Management LP | +2,669,941 | $30M | ADD |
| 683 Capital Management, LLC | +2,450,000 | $27M | OPEN |
| Propel Bio Management, LLC | +2,344,779 | $26M | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −5,020,337 | $56M | CLOSE |
| Focus Partners Wealth | −2,622,462 | $29M | CLOSE |
| Nantahala Capital Management, LLC | −1,871,915 | $21M | TRIM |
| GSA CAPITAL PARTNERS LLP | −527,455 | $6M | CLOSE |
| Squarepoint Ops LLC | −352,875 | $4M | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Avidity Partners Management LP | 8.0M | 4.5M | 5.6M | 4.7M | 4.7M | 7.4M | $14M |
| Aberdeen Group plc | — | 1.1M | 8.2M | 8.2M | 8.2M | 8.2M | $9M |
| BVF INC/IL | 8.9M | 8.9M | 7.7M | 7.7M | 7.7M | 7.7M | $8M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 5.1M | $6M |
| Soleus Capital Management, L.P. | 7.3M | 7.3M | 7.3M | 1.6M | — | 4.5M | $5M |
| Laurion Capital Management LP | — | 228K | 1.9M | 1.9M | 3.9M | 3.9M | $4M |
| MILLENNIUM MANAGEMENT LLC | 580K | 101K | 103K | 530K | 3.4M | 3.8M | $4M |
| MORGAN STANLEY | 1.1M | 568K | 3.6M | 3.1M | 2.1M | 3.3M | $4M |
| Nantahala Capital Management, LLC | — | — | — | — | 4.4M | 2.5M | $3M |
| 683 Capital Management, LLC | 700K | 900K | 62K | — | — | 2.5M | $3M |
| Propel Bio Management, LLC | — | — | — | — | — | 2.3M | $3M |
| GEODE CAPITAL MANAGEMENT, LLC | 952K | 976K | 975K | 1.0M | 1.2M | 1.5M | $2M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.4M | 1.4M | 1.4M | 1.4M | 1.4M | 1.4M | $2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 884K | 950K | — | — | 334K | 1.0M | $1M |
| Woodline Partners LP | — | — | — | — | — | 967K | $1M |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Holders only — breaks = no 13F.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
SEC Schedule 13D/G XML · group aggregate.