$4.15
+0.03 (+0.73%)
USD · as of 2026-08-21 · marketstack
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | SAMSARA BIOCAPITAL, LLC | 12,948,08112.9M | $75M | 56.47% | — |
| 2 | RTW INVESTMENTS, LP | 1,300,0001.3M | $8M | 5.67% | — |
| 3 | Paradigm Biocapital Advisors LP | 700,000700,000 | $4M | 3.05% | — |
| 4 | Alyeska Investment Group, L.P. | 572,687572,687 | $3M | 2.50% | ADD 42% |
| 5 | Siren, L.L.C. | 435,798435,798 | $3M | 1.90% | — |
| 6 | Ikarian Capital, LLC | 360,000360,000 | $2M | 1.57% | — |
| 7 | Propel Bio Management, LLC | 295,771295,771 | $2M | 1.29% | ADD 603% |
| 8 | Kalehua Capital Management LLC | 271,170271,170 | $2M | 1.18% | ADD 94% |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 255,348255,348 | $1M | 1.11% | NEW |
| 10 | RAYMOND JAMES FINANCIAL INC | 118,887118,887 | $685,978 | 0.52% | ADD 34% |
| 11 | GOLDMAN SACHS GROUP INC | 110,503110,503 | $637,602 | 0.48% | ADD 222% |
| 12 | Woodline Partners LP | 100,000100,000 | $577,000 | 0.44% | — |
| 13 | ADAR1 Capital Management, LLC | 100,000100,000 | $577,000 | 0.44% | — |
| 14 | WHI TRUST Co LLC | 97,49397,493 | $562,535 | 0.43% | — |
| 15 | BOOTHBAY FUND MANAGEMENT, LLC | 92,26192,261 | $532,346 | 0.40% | — |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 87,54587,545 | $505,341 | 0.38% | ADD 6% |
| 17 | Simplify Asset Management Inc. | 87,42687,426 | $504,448 | 0.38% | ADD 336% |
| 18 | MARSHALL WACE, LLP | 67,87967,879 | $391,662 | 0.30% | TRIM -7% |
| 19 | RENAISSANCE TECHNOLOGIES LLC | 66,15166,151 | $381,691 | 0.29% | TRIM -25% |
| 20 | MILLENNIUM MANAGEMENT LLC | 59,53459,534 | $343,511 | 0.26% | NEW |
| 21 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 52,68452,684 | $303,987 | 0.23% | ADD 310% |
| 22 | 683 Capital Management, LLC | 45,00045,000 | $259,650 | 0.20% | TRIM -44% |
| 23 | Belpointe Asset Management LLC | 40,00040,000 | $230,800 | 0.17% | — |
| 24 | Fortis Capital Advisors, LLC | 40,00040,000 | $230,800 | 0.17% | — |
| 25 | Squarepoint Ops LLC | 39,77339,773 | $229,490 | 0.17% | ADD 57% |
| 26 | MORGAN STANLEY | 38,34438,344 | $221,245 | 0.17% | ADD 37% |
| 27 | VANGUARD FIDUCIARY TRUST CO | 36,71736,717 | $211,857 | 0.16% | NEW |
| 28 | BlackRock, Inc. | 36,04336,043 | $207,968 | 0.16% | TRIM -6% |
| 29 | TWO SIGMA INVESTMENTS, LP | 30,65030,650 | $176,850 | 0.13% | ADD 10% |
| 30 | STATE STREET CORP | 26,51026,510 | $152,963 | 0.12% | ADD 4% |
| 31 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 22,50022,500 | $129,825 | 0.10% | — |
| 32 | Stonepine Capital Management, LLC | 20,40020,400 | $117,708 | 0.09% | NEW |
| 33 | Velan Capital Investment Management LP | 18,00018,000 | $103,860 | 0.08% | NEW |
| 34 | RBF Capital, LLC | 17,39117,391 | $100,346 | 0.08% | TRIM -50% |
| 35 | NORTHERN TRUST CORP | 14,44914,449 | $83,371 | 0.06% | ADD 6% |
| 36 | Independent Advisor Alliance | 14,23014,230 | $82,110 | 0.06% | NEW |
| 37 | Connor, Clark & Lunn Investment Management Ltd. | 13,65513,655 | $78,789 | 0.06% | ADD 34% |
| 38 | WealthTrust Asset Management, LLC | 12,41612,416 | $71,640 | 0.05% | NEW |
| 39 | HRT FINANCIAL LP | 11,61711,617 | $67,000 | 0.05% | NEW |
| 40 | Qube Research & Technologies Ltd | 11,10311,103 | $64,064 | 0.05% | NEW |
| 41 | Johnson Financial Group, Inc. | 10,00010,000 | $57,700 | 0.04% | — |
| 42 | CITIGROUP INC | 8,7038,703 | $50,216 | 0.04% | ADD 870200% |
| 43 | FMR LLC | 7,8067,806 | $45,041 | 0.03% | — |
| 44 | UBS Group AG | 6,1846,184 | $35,682 | 0.03% | ADD 130% |
| 45 | BARCLAYS PLC | 5,2805,280 | $30,466 | 0.02% | TRIM -13% |
| 46 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 4,0004,000 | $23,080 | 0.02% | — |
| 47 | Steward Partners Investment Advisory, LLC | 2,2152,215 | $12,781 | 0.01% | NEW |
| 48 | Vanguard Global Advisers, LLC | 725725 | $4,183 | 0.00% | NEW |
| 49 | BNP PARIBAS FINANCIAL MARKETS | 652652 | $3,762 | 0.00% | ADD 1154% |
| 50 | Strengthening Families & Communities, LLC | 268268 | $1,546 | 0.00% | NEW |
| 51 | ROYAL BANK OF CANADA | 103103 | $1,000 | 0.00% | TRIM -9% |
| 52 | Tower Research Capital LLC (TRC) | 139139 | $802 | 0.00% | NEW |
| 53 | Fortitude Family Office, LLC | 114114 | $658 | 0.00% | — |
| 54 | Parallel Advisors, LLC | 4949 | $283 | 0.00% | — |
| 55 | JPMORGAN CHASE & CO | 5050 | $265 | 0.00% | — |
| 56 | FEDERATED HERMES, INC. | 3434 | $196 | 0.00% | NEW |
| 57 | HARBOUR INVESTMENTS, INC. | 1313 | $75 | 0.00% | NEW |
| 58 | SBI Securities Co., Ltd. | 55 | $29 | 0.00% | — |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | +255,348 | $1M | OPEN |
| Propel Bio Management, LLC | +253,718 | $1M | ADD |
| Alyeska Investment Group, L.P. | +169,136 | $975,915 | ADD |
| Kalehua Capital Management LLC | +131,269 | $757,422 | ADD |
| GOLDMAN SACHS GROUP INC | +76,200 | $439,674 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −292,790 | $2M | CLOSE |
| Redmile Group, LLC | −82,955 | $478,650 | CLOSE |
| 683 Capital Management, LLC | −35,590 | $205,354 | TRIM |
| JANE STREET GROUP, LLC | −33,114 | $191,068 | CLOSE |
| OMERS ADMINISTRATION Corp | −30,000 | $173,100 | 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 |
|---|---|---|---|---|---|---|---|
| SAMSARA BIOCAPITAL, LLC | — | 11.4M | 11.4M | 11.4M | 12.9M | 12.9M | $75M |
| RTW INVESTMENTS, LP | — | — | — | — | 1.3M | 1.3M | $8M |
| Paradigm Biocapital Advisors LP | — | — | — | — | 700K | 700K | $4M |
| Alyeska Investment Group, L.P. | — | — | — | — | 404K | 573K | $3M |
| Siren, L.L.C. | — | 283K | 283K | 318K | 436K | 436K | $3M |
| Ikarian Capital, LLC | — | — | — | — | 360K | 360K | $2M |
| Propel Bio Management, LLC | — | — | — | — | 42K | 296K | $2M |
| Kalehua Capital Management LLC | — | — | — | — | 140K | 271K | $2M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 255K | $1M |
| RAYMOND JAMES FINANCIAL INC | — | — | 3K | — | 88K | 119K | $685,978 |
| GOLDMAN SACHS GROUP INC | — | — | — | 22K | 34K | 111K | $637,602 |
| Woodline Partners LP | — | 22K | — | 241K | 100K | 100K | $577,000 |
| ADAR1 Capital Management, LLC | — | — | — | — | 100K | 100K | $577,000 |
| WHI TRUST Co LLC | — | — | — | — | 97K | 97K | $562,535 |
| BOOTHBAY FUND MANAGEMENT, LLC | — | — | — | — | 92K | 92K | $532,346 |
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.