$4.99
+0.31 (+6.62%)
USD · as of 2026-08-19 · marketstack
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Caligan Partners LP | 923,910923,910 | $5M | 5.38% | — |
| 2 | Affinity Asset Advisors, LLC | 707,338707,338 | $4M | 4.12% | — |
| 3 | CANNELL CAPITAL LLC | 685,123685,123 | $4M | 3.99% | NEW† |
| 4 | ARMISTICE CAPITAL, LLC | 518,181518,181 | $3M | 3.02% | TRIM -54% |
| 5 | Velan Capital Investment Management LP | 471,559471,559 | $2M | 2.75% | — |
| 6 | BOOTHBAY FUND MANAGEMENT, LLC | 280,734280,734 | $1M | 1.63% | — |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 188,758188,758 | $998,530 | 1.10% | NEW |
| 8 | DAFNA Capital Management LLC | 153,712153,712 | $813,136 | 0.89% | TRIM -11% |
| 9 | MARSHALL WACE, LLP | 140,497140,497 | $743,229 | 0.82% | ADD 65% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 138,917138,917 | $734,965 | 0.81% | ADD 105% |
| 11 | Stonepine Capital Management, LLC | 99,73599,735 | $527,598 | 0.58% | TRIM -72% |
| 12 | Squarepoint Ops LLC | 75,20875,208 | $397,850 | 0.44% | ADD 126% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 65,10165,101 | $344,384 | 0.38% | NEW |
| 14 | TWO SIGMA INVESTMENTS, LP | 50,66250,662 | $268,002 | 0.29% | TRIM -57% |
| 15 | JANE STREET GROUP, LLC | 49,21149,211 | $260,327 | 0.29% | TRIM -52% |
| 16 | BlackRock, Inc. | 38,55338,553 | $203,945 | 0.22% | ADD 578% |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 32,36032,360 | $171,184 | 0.19% | ADD 23% |
| 18 | NORTHERN TRUST CORP | 31,58031,580 | $167,058 | 0.18% | ADD 58% |
| 19 | STATE STREET CORP | 28,91628,916 | $152,966 | 0.17% | ADD 23% |
| 20 | Mariner, LLC | 24,54424,544 | $129,838 | 0.14% | — |
| 21 | MORGAN STANLEY | 22,38622,386 | $118,422 | 0.13% | — |
| 22 | Legacy Trust | 17,23417,234 | $91,168 | 0.10% | — |
| 23 | Verdad Advisers, LP | 12,09812,098 | $63,998 | 0.07% | NEW |
| 24 | BECK MACK & OLIVER LLC | 12,00012,000 | $63,480 | 0.07% | — |
| 25 | UBS Group AG | 4,2704,270 | $22,588 | 0.02% | ADD 17692% |
| 26 | Capital Analysts, LLC | 1,5001,500 | $8,000 | 0.01% | — |
| 27 | ROYAL BANK OF CANADA | 965965 | $5,000 | 0.01% | ADD 132% |
| 28 | Vanguard Global Advisers, LLC | 862862 | $4,560 | 0.01% | NEW |
| 29 | Tower Research Capital LLC (TRC) | 856856 | $4,528 | 0.00% | TRIM -74% |
| 30 | Salomon & Ludwin, LLC | 290290 | $1,586 | 0.00% | — |
| 31 | New England Capital Financial Advisors LLC | 200200 | $1,058 | 0.00% | — |
| 32 | INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | 175175 | $961 | 0.00% | — |
| 33 | Fortitude Family Office, LLC | 127127 | $672 | 0.00% | TRIM -79% |
| 34 | BNP PARIBAS FINANCIAL MARKETS | 110110 | $582 | 0.00% | — |
| 35 | PNC FINANCIAL SERVICES GROUP, INC. | 102102 | $540 | 0.00% | — |
| 36 | JPMORGAN CHASE & CO | 4747 | $224 | 0.00% | — |
| 37 | Optiver Holding B.V. | 3131 | $164 | 0.00% | — |
| 38 | JONES FINANCIAL COMPANIES LLLP | 2626 | $114 | 0.00% | NEW |
| 39 | MAI Capital Management | 22 | $11 | 0.00% | — |
† NEW this big is usually a rename.
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| CANNELL CAPITAL LLC | +685,123 | $4M | OPEN |
| VANGUARD CAPITAL MANAGEMENT LLC | +188,758 | $998,530 | OPEN |
| GEODE CAPITAL MANAGEMENT, LLC | +71,258 | $376,955 | ADD |
| VANGUARD FIDUCIARY TRUST CO | +65,101 | $344,384 | OPEN |
| MARSHALL WACE, LLP | +55,324 | $292,664 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| ARMISTICE CAPITAL, LLC | −600,744 | $3M | TRIM |
| Stonepine Capital Management, LLC | −253,934 | $1M | TRIM |
| Kalehua Capital Management LLC | −235,779 | $1M | CLOSE |
| VANGUARD GROUP INC | −138,194 | $731,046 | CLOSE |
| TWO SIGMA INVESTMENTS, LP | −67,556 | $357,371 | TRIM |
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 |
|---|---|---|---|---|---|---|---|
| Caligan Partners LP | 7.4M | 9.0M | 9.2M | 924K | 924K | 924K | $5M |
| Affinity Asset Advisors, LLC | — | — | — | — | 707K | 707K | $4M |
| CANNELL CAPITAL LLC | — | — | — | — | — | 685K | $4M |
| ARMISTICE CAPITAL, LLC | 8.9M | 8.6M | 8.9M | 639K | 1.1M | 518K | $3M |
| Velan Capital Investment Management LP | — | — | — | — | 472K | 472K | $2M |
| BOOTHBAY FUND MANAGEMENT, LLC | 2.6M | 2.8M | — | 281K | 281K | 281K | $1M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 189K | $998,530 |
| DAFNA Capital Management LLC | — | — | — | — | 173K | 154K | $813,136 |
| MARSHALL WACE, LLP | — | — | 124K | — | 85K | 140K | $743,229 |
| GEODE CAPITAL MANAGEMENT, LLC | 477K | 1.0M | 646K | 68K | 68K | 139K | $734,965 |
| Stonepine Capital Management, LLC | — | — | — | — | 354K | 100K | $527,598 |
| Squarepoint Ops LLC | — | 11K | — | — | 33K | 75K | $397,850 |
| VANGUARD FIDUCIARY TRUST CO | — | — | — | — | — | 65K | $344,384 |
| TWO SIGMA INVESTMENTS, LP | 128K | 89K | 87K | — | 118K | 51K | $268,002 |
| JANE STREET GROUP, LLC | 24K | — | 38K | — | 102K | 49K | $260,327 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
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.