IPSC — Institutional owners (13F)

108 filers · $390.5M total · As of June 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institution Value Shares % of tracked 13F Type
RA CAPITAL MANAGEMENT, L.P. $43,498,354 17,754,430 11.14% Shares
TCG Crossover Management, LLC $43,401,690 17,754,430 11.12% Shares
Versant Venture Management, LLC $29,806,967 12,166,109 7.63% Shares
Deep Track Capital, LP $23,183,480 9,462,645 5.94% Shares
RTW INVESTMENTS, LP $21,304,347 8,695,652 5.46% Shares
Venrock Adviser, LLC $21,304,347 8,695,652 5.46% Shares
Commodore Capital LP $21,304,347 8,695,652 5.46% Shares
BlackRock, Inc. $19,824,831 8,091,768 5.08% Shares
VANGUARD CAPITAL MANAGEMENT LLC $13,974,016 5,703,680 3.58% Shares
Balyasny Asset Management L.P. $13,531,213 5,522,944 3.47% Shares
Point72 Asset Management, L.P. $12,202,289 4,980,526 3.13% Shares
Seven Fleet Capital Management LP $10,652,174 4,347,826 2.73% Shares
Woodline Partners LP $10,430,948 4,257,530 2.67% Shares
MILLENNIUM MANAGEMENT LLC $10,277,703 4,194,981 2.63% Shares
Trails Edge Capital Partners, LP $10,130,674 4,134,969 2.59% Shares
Spruce Street Capital LP $9,944,682 4,059,054 2.55% Shares
ADAGE CAPITAL PARTNERS GP, L.L.C. $9,284,368 3,789,538 2.38% Shares
GEODE CAPITAL MANAGEMENT, LLC $7,301,590 2,979,529 1.87% Shares
TWO SIGMA INVESTMENTS, LP $6,612,582 2,699,013 1.69% Shares
DAFNA Capital Management LLC $5,881,122 2,400,458 1.51% Shares
STEMPOINT CAPITAL LP $5,258,146 2,146,182 1.35% Shares
STATE STREET CORP $4,515,727 1,843,154 1.16% Shares
NORTHERN TRUST CORP $3,905,163 1,593,944 1.00% Shares
DV Trading LLC $3,430,000 1,400,000 0.88% Shares
Rock Springs Capital Management LP $3,195,650 1,304,347 0.82% Shares
RENAISSANCE TECHNOLOGIES LLC $3,081,365 1,257,700 0.79% Shares
Casdin Capital, LLC $3,009,066 1,228,190 0.77% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $2,487,688 1,015,383 0.64% Shares
VANGUARD GROUP INC $2,093,350 2,103,869 0.54% Shares
VANGUARD FIDUCIARY TRUST CO $1,806,929 737,522 0.46% Shares
MARSHALL WACE, LLP $1,318,085 537,994 0.34% Shares
TWO SIGMA ADVISERS, LP $1,261,108 1,267,700 0.32% Shares
Invesco Ltd. $934,477 381,419 0.24% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $928,224 378,867 0.24% Shares
Bank of New York Mellon Corp $732,584 299,014 0.19% Shares
DIMENSIONAL FUND ADVISORS LP $664,720 271,492 0.17% Shares
UBS Group AG $569,402 232,409 0.15% Shares
AMERICAN CENTURY COMPANIES INC $426,452 174,062 0.11% Shares
Nuveen, LLC $400,800 163,592 0.10% Shares
BANK OF AMERICA CORP /DE/ $389,288 158,893 0.10% Shares
GOLDMAN SACHS GROUP INC $368,561 150,433 0.09% Shares
WELLS FARGO & COMPANY/MN $364,842 148,915 0.09% Shares
RHUMBLINE ADVISERS $314,584 128,404 0.08% Shares
CITADEL ADVISORS LLC $309,852 126,470 0.08% Shares
DEUTSCHE BANK AG\ $294,573 120,234 0.08% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $283,690 115,792 0.07% Shares
CITADEL ADVISORS LLC $276,850 113,000 0.07% Call option
CITADEL ADVISORS LLC $275,135 112,300 0.07% Put option
RAYMOND JAMES FINANCIAL INC $223,741 91,323 0.06% Shares
Squarepoint Ops LLC $220,865 90,149 0.06% Shares
WELLINGTON MANAGEMENT GROUP LLP $200,655 81,900 0.05% Shares
JANE STREET GROUP, LLC $186,935 76,300 0.05% Call option
MetLife Investment Management, LLC $186,864 76,271 0.05% Shares
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $175,118 77,830 0.04% Shares
AXQ CAPITAL, LP $144,687 59,056 0.04% Shares
Spark Investment Management LLC $144,550 59,000 0.04% Shares
CITIGROUP INC $139,652 57,001 0.04% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $138,450 56,510 0.04% Shares
JPMORGAN CHASE & CO $123,411 51,208 0.03% Shares
Verdad Advisers, LP $113,190 46,200 0.03% Shares
Quadrature Capital Ltd $112,431 45,890 0.03% Shares
Vanguard Global Advisers, LLC $109,309 44,616 0.03% Shares
Legal & General Group Plc $107,702 43,960 0.03% Shares
MORGAN STANLEY $94,212 38,454 0.02% Shares
Police & Firemen's Retirement System of New Jersey $89,055 36,349 0.02% Shares
MANUFACTURERS LIFE INSURANCE COMPANY, THE $84,775 34,602 0.02% Shares
State of Wyoming $81,891 33,425 0.02% Shares
HarbourVest Partners LLC $71,094 29,018 0.02% Shares
Parametrica Management Ltd $68,208 27,840 0.02% Shares
ALLIANCEBERNSTEIN L.P. $67,325 29,790 0.02% Shares
BNP PARIBAS FINANCIAL MARKETS $62,629 25,563 0.02% Shares
Magnus Financial Group LLC $61,961 25,290 0.02% Shares
BARCLAYS PLC $60,514 24,700 0.02% Shares
INTECH INVESTMENT MANAGEMENT LLC $59,782 24,401 0.02% Shares
VOYA INVESTMENT MANAGEMENT LLC $58,964 24,067 0.02% Shares
NEW YORK STATE COMMON RETIREMENT FUND $55,615 22,700 0.01% Shares
JANE STREET GROUP, LLC $53,900 22,000 0.01% Put option
Schonfeld Strategic Advisors LLC $52,752 21,532 0.01% Shares
Quadrant Private Wealth Management, LLC $49,053 20,022 0.01% Shares
PRUDENTIAL FINANCIAL INC $45,558 18,595 0.01% Shares
ProShare Advisors LLC $39,536 16,137 0.01% Shares
VICTORY CAPITAL MANAGEMENT INC $34,547 14,101 0.01% Shares
Tower Research Capital LLC (TRC) $30,583 12,483 0.01% Shares
XPONANCE LLC $28,834 11,769 0.01% Shares
Ameritas Investment Partners, Inc. $27,403 11,185 0.01% Shares
Russell Investments Group, Ltd. $24,144 9,855 0.01% Shares
FMR LLC $22,035 8,994 0.01% Shares
ROYAL BANK OF CANADA $15,000 6,383 0.00% Shares
SECURITY NATIONAL BANK OF SIOUX CITY IOWA /IA/ $12,250 5,000 0.00% Shares
Point72 Asia (Singapore) Pte. Ltd. $8,895 17,861 0.00% Shares
Advisors Asset Management, Inc. $8,270 8,313 0.00% Shares
Sterling Capital Management LLC $6,086 2,484 0.00% Shares
Truvestments Capital LLC $5,709 2,330 0.00% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $4,158 1,697 0.00% Shares
SBI Securities Co., Ltd. $2,984 1,218 0.00% Shares
NISA INVESTMENT ADVISORS, LLC $2,163 883 0.00% Shares
MARK SHEPTOFF FINANCIAL PLANNING, LLC $1,225 500 0.00% Shares
Optiver Holding B.V. $902 368 0.00% Shares
Fortitude Family Office, LLC $720 294 0.00% Shares
Point72 (DIFC) Ltd $530 1,064 0.00% Shares
GSA CAPITAL PARTNERS LLP $295 120,598 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $248 101,164 0.00% Shares
Arax Advisory Partners $243 99 0.00% Shares
Caitong International Asset Management Co., Ltd $86 35 0.00% Shares
Virtu Financial LLC $76 31,063 0.00% Shares
HRT FINANCIAL LP $27 11,267 0.00% Shares
FNY Investment Advisers, LLC $24 10,000 0.00% Shares
Smartleaf Asset Management LLC $2 1 0.00% Shares