IMTX — Institutional owners (13F)

85 filers · $779.6M total · As of Sept. 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
RTW INVESTMENTS, LP $131,144,763 12,946,176 16.82% Shares
MONTANOVA CAPITAL, LLC $113,356,007 11,190,129 14.54% Shares
PERCEPTIVE ADVISORS LLC $105,184,409 10,383,456 13.49% Shares
BAKER BROS. ADVISORS LP $96,321,763 9,508,565 12.35% Shares
Jefferies Financial Group Inc. $65,913,904 6,506,802 8.45% Shares
Vestal Point Capital, LP $62,552,750 6,175,000 8.02% Shares
Sofinnova Investments, Inc. $37,170,475 3,669,346 4.77% Shares
MORGAN STANLEY $22,149,185 2,186,494 2.84% Shares
CITADEL ADVISORS LLC $18,382,475 1,814,657 2.36% Shares
WELLINGTON MANAGEMENT GROUP LLP $16,692,740 1,647,852 2.14% Shares
Point72 Asset Management, L.P. $14,684,418 1,449,597 1.88% Shares
Woodline Partners LP $9,124,456 900,736 1.17% Shares
SPHERA FUNDS MANAGEMENT LTD. $7,294,177 720,057 0.94% Shares
UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO $7,064,976 697,431 0.91% Shares
Aberdeen Group plc $6,621,009 653,604 0.85% Shares
Qube Research & Technologies Ltd $5,300,188 523,217 0.68% Shares
Boxer Capital Management, LLC $4,811,750 475,000 0.62% Shares
WASATCH ADVISORS LP $4,573,858 464,823 0.59% Shares
TD Asset Management Inc $4,551,895 449,348 0.58% Shares
STATE STREET CORP $4,251,541 419,698 0.55% Shares
Balyasny Asset Management L.P. $4,068,644 401,643 0.52% Shares
GOLDMAN SACHS GROUP INC $3,891,652 384,171 0.50% Shares
SECTORAL ASSET MANAGEMENT INC $2,278,521 224,928 0.29% Shares
Atom Investors LP $2,191,777 216,365 0.28% Shares
MOORE CAPITAL MANAGEMENT, LP $1,952,760 192,770 0.25% Shares
SCHRODER INVESTMENT MANAGEMENT GROUP $1,886,188 197,300 0.24% Shares
Burkehill Global Management, LP $1,519,500 150,000 0.19% Shares
SummitTX Capital, L.P. $1,482,536 146,351 0.19% Shares
GEODE CAPITAL MANAGEMENT, LLC $1,432,382 141,400 0.18% Shares
Aquilo Capital Management, LLC $1,375,108 304,902 0.18% Shares
ALPS ADVISORS INC $1,373,618 135,599 0.18% Shares
JPMORGAN CHASE & CO $1,310,427 137,074 0.17% Shares
MYDA Advisors LLC $1,215,600 120,000 0.16% Shares
DAFNA Capital Management LLC $1,184,805 116,960 0.15% Shares
Jump Financial, LLC $1,074,246 106,046 0.14% Shares
MILLENNIUM MANAGEMENT LLC $1,060,712 104,710 0.14% Shares
JANE STREET GROUP, LLC $1,059,071 104,548 0.14% Shares
CITIGROUP INC $678,031 66,933 0.09% Shares
TUDOR INVESTMENT CORP ET AL $672,976 66,434 0.09% Shares
D. E. Shaw & Co., Inc. $599,301 59,161 0.08% Shares
MACQUARIE GROUP LTD $541,955 53,500 0.07% Shares
Engineers Gate Manager LP $515,475 50,886 0.07% Shares
Vanguard Personalized Indexing Management, LLC $500,067 49,365 0.06% Shares
Ikarian Capital, LLC $492,003 48,569 0.06% Shares
BARCLAYS PLC $468,665 46,265 0.06% Shares
BANK OF AMERICA CORP /DE/ $442,245 43,657 0.06% Shares
BNP PARIBAS FINANCIAL MARKETS $438,599 43,297 0.06% Shares
MILLENNIUM MANAGEMENT LLC $408,239 40,300 0.05% Put option
Prime Capital Investment Advisors, LLC $405,200 40,000 0.05% Shares
NORTHERN TRUST CORP $365,977 36,128 0.05% Shares
UBS Group AG $358,937 35,433 0.05% Shares
ExodusPoint Capital Management, LP $353,912 34,937 0.05% Shares
Virtus Investment Advisers, LLC $353,355 34,882 0.05% Shares
BlackRock, Inc. $343,549 33,914 0.04% Shares
Ishara Investments LP $311,498 30,750 0.04% Shares
XTX Topco Ltd $304,103 30,020 0.04% Shares
MERCER GLOBAL ADVISORS INC /ADV $303,768 29,987 0.04% Shares
DOLIVER ADVISORS, LP $263,400 30,000 0.03% Shares
BRANDYWINE MANAGERS, LLC $255,550 25,227 0.03% Shares
FOX RUN MANAGEMENT, L.L.C. $240,020 23,694 0.03% Shares
Lynx1 Capital Management LP $235,381 23,236 0.03% Shares
J. Goldman & Co LP $230,842 22,788 0.03% Shares
Graham Capital Management, L.P. $230,204 22,725 0.03% Shares
T. Rowe Price Investment Management, Inc. $226,558 22,365,046 0.03% Shares
MANUFACTURERS LIFE INSURANCE COMPANY, THE $222,627 21,977 0.03% Shares
GUGGENHEIM CAPITAL LLC $166,476 16,434 0.02% Shares
Mitsubishi UFJ Asset Management Co., Ltd. $154,979 15,299 0.02% Shares
Quadrature Capital Ltd $149,174 14,726 0.02% Shares
CITADEL ADVISORS LLC $147,898 14,600 0.02% Call option
Aquatic Capital Management LLC $142,803 14,097 0.02% Shares
Mariner, LLC $132,703 13,100 0.02% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $116,181 11,469 0.01% Shares
State of Wyoming $109,313 10,791 0.01% Shares
Verdad Advisers, LP $106,193 10,483 0.01% Shares
OSAIC HOLDINGS, INC. $53,232 5,255 0.01% Shares
Quarry LP $39,771 3,926 0.01% Shares
FMR LLC $22,610 2,232 0.00% Shares
ROYAL BANK OF CANADA $11,000 1,110 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $4,161 410,712 0.00% Shares
Farther Finance Advisors, LLC $3,394 335 0.00% Shares
Tower Research Capital LLC (TRC) $2,614 258 0.00% Shares
SG Americas Securities, LLC $884 87,277 0.00% Shares
HRT FINANCIAL LP $321 31,724 0.00% Shares
SBI Securities Co., Ltd. $253 25 0.00% Shares
HUNTINGTON NATIONAL BANK $10 1 0.00% Shares