First-hand SEC EDGAR 13F-HR institutional holdings: the top 25 holders ranked by market value, plus the largest adds and trims this quarter. Quarter 2026-03-31.
| Filer | Shares | Market Value | Δ Shares | Change |
|---|---|---|---|---|
FMR LLCCIK 0000315066 | 5,586,894 | $357.23M | +136,672 | ↑ INC |
BlackRock, Inc.CIK 0002012383 | 2,273,831 | $145.39M | -1,149 | ↓ DEC |
WELLINGTON MANAGEMENT GROUP LLPCIK 0000902219 | 1,735,376 | $110.96M | +217,102 | ↑ INC |
STATE STREET CORPCIK 0000093751 | 1,698,244 | $108.59M | +510,253 | ↑ INC |
Atlas Venture Life Science Advisors, LLCCIK 0001917529 | 1,513,875 | $96.80M | – | no_change |
VANGUARD CAPITAL MANAGEMENT LLCCIK 0002100119 | 1,375,430 | $87.94M | +1,375,430 | NEW |
Frazier Life Sciences Management, L.P.CIK 0001892134 | 1,354,852 | $86.63M | +94,852 | ↑ INC |
TCG Crossover Management, LLCCIK 0001839948 | 1,341,862 | $85.80M | +876,605 | ↑ INC |
JPMORGAN CHASE & COCIK 0000019617 | 1,371,480 | $83.36M | -209,647 | ↓ DEC |
BVF INC/ILCIK 0001056807 | 1,272,312 | $81.35M | +622,312 | ↑ INC |
ORBIMED ADVISORS LLCCIK 0001055951 | 1,067,550 | $68.26M | – | no_change |
Siren, L.L.C.CIK 0002005245 | 988,401 | $63.20M | – | no_change |
Woodline Partners LPCIK 0001784547 | 958,281 | $61.27M | +448 | ↑ INC |
GEODE CAPITAL MANAGEMENT, LLCCIK 0001214717 | 744,222 | $47.60M | +59,264 | ↑ INC |
Vestal Point Capital, LPCIK 0001974915 | 700,000 | $44.76M | -35,000 | ↓ DEC |
DEERFIELD MANAGEMENT COMPANY, L.P.CIK 0001009258 | 657,000 | $42.01M | +145,837 | ↑ INC |
GOLDMAN SACHS GROUP INCCIK 0000886982 | 639,842 | $40.91M | -114,353 | ↓ DEC |
JENNISON ASSOCIATES LLCCIK 0000053417 | 610,382 | $39.03M | +78,303 | ↑ INC |
Assenagon Asset Management S.A.CIK 0001546007 | 546,247 | $34.93M | +188,411 | ↑ INC |
ARMISTICE CAPITAL, LLCCIK 0001601086 | 536,000 | $34.27M | +36,609 | ↑ INC |
Bellevue Group AGCIK 0001674546 | 459,314 | $29.37M | +459,314 | NEW |
Saturn V Capital Management LPCIK 0001964437 | 449,926 | $28.77M | +151,497 | ↑ INC |
Opaleye Management Inc.CIK 0001595855 | 421,000 | $26.92M | +221,000 | ↑ INC |
Palo Alto Investors LPCIK 0001306923 | 401,719 | $25.69M | +84,263 | ↑ INC |
EVENTIDE ASSET MANAGEMENT, LLCCIK 0001442891 | 395,572 | $25.29M | +180 | ↑ INC |
| Filer | Δ Shares | Value |
|---|---|---|
VANGUARD CAPITAL MANAGEMENT LLCNEW | +1,375,430 | $87.94M |
TCG Crossover Management, LLC↑ INC | +876,605 | $85.80M |
BVF INC/IL↑ INC | +622,312 | $81.35M |
STATE STREET CORP↑ INC | +510,253 | $108.59M |
Bellevue Group AGNEW | +459,314 | $29.37M |
Caption Management, LLC↑ INC | +292,400 | $19.18M |
VANGUARD PORTFOLIO MANAGEMENT LLCNEW | +247,338 | $15.81M |
Opaleye Management Inc.↑ INC | +221,000 | $26.92M |
VANGUARD FIDUCIARY TRUST CONEW | +217,436 | $13.90M |
WELLINGTON MANAGEMENT GROUP LLP↑ INC | +217,102 | $110.96M |
| Filer | Δ Shares | Value |
|---|---|---|
Bain Capital Life Sciences Investors, LLC↓ DEC | -442,266 | $9.03M |
JPMORGAN CHASE & CO↓ DEC | -209,647 | $83.36M |
Checkpoint Capital L.P.↓ DEC | -166,331 | $18.33M |
PRICE T ROWE ASSOCIATES INC /MD/↓ DEC | -148,655 | $99.07K |
Octagon Capital Advisors LP↓ DEC | -145,000 | $17.26M |
MILLENNIUM MANAGEMENT LLC↓ DEC | -125,520 | $5.32M |
GOLDMAN SACHS GROUP INC↓ DEC | -114,353 | $40.91M |
BOOTHBAY FUND MANAGEMENT, LLC↓ DEC | -110,781 | $1.37M |
BARCLAYS PLC↓ DEC | -66,345 | $2.13M |
SILVERARC CAPITAL MANAGEMENT, LLC↓ DEC | -40,443 | $12.53M |