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Disclosery

CMPX COMPASS THERAPEUTICS INC

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COM (common), issuer CIK 1738021

195 managers (201 13F filers) reported a position in CMPX shares at 2026-03-31, 173,236,836 shares in all. 43 filers opened a position and 19 filers sold out during the quarter.

Managers
195
13F filers
201
New
43
Added
75
Reduced
48
Sold out
19
Shares held by filers
173,236,836

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC16,790,809$88.8M4.51%013F-HRTimelineGroup
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC15,219,994$80.5M1.76%013F-HRTimelineGroup
MONTANOVA CAPITAL, LLC14,307,379$75.7M2.05%+125,00013F-HRTimeline
Vivo Capital, LLC9,545,466$50.5M4.2%013F-HR/ATimeline
BlackRock, Inc.in group BlackRock, Inc.9,506,080$50.3M<0.01%+117,45613F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…8,486,500$44.9M0.07%+4,050,00013F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding8,320,995$44MnewTimeline
ENAVATE SCIENCES GP, LLC7,788,150$41.2M11.72%013F-HRTimeline
BVF INC/ILin group BVF INC/IL7,764,842$41.1M1.31%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP6,694,976$35.4M<0.01%+1,804,45113F-HRTimelineGroup
RTW INVESTMENTS, LP4,186,599$22.1M0.22%+1,686,59913F-HRTimeline
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…3,606,000$19.1M0.23%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC3,565,770$18.9M<0.01%+63,24413F-HRTimelineGroup
Rock Springs Capital Management LP3,305,308$17.5M1.03%-621,89413F-HRTimeline
Logos Global Management LP3,150,000$16.7M0.86%+2,000,00013F-HRTimeline
Blue Owl Capital Holdings LP2,941,525$15.6M4.18%-525,00013F-HRTimeline
Qube Research & Technologies Ltd2,550,356$13.5M0.02%+2,108,55113F-HRTimeline
UBS Group AGgroup of 2 filers holding2,530,975$13.4M+2,363,119Timeline
Sofinnova Investments, Inc.2,056,161$10.9M0.54%-1,309,28513F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,995,394$10.6M<0.01%+477,97913F-HRTimelineGroup
BRAIDWELL LP1,965,106$10.4M0.35%-821,67213F-HRTimeline
Blackstone Inc.in group Blackstone Inc.1,857,848$9.83M0.03%-4,268,33413F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
FMR LLCin group FMR LLC1,801,721$9.53M<0.01%-777,99013F-HRTimelineGroup
ROYCE & ASSOCIATES LP1,619,798$8.57M0.08%+1,333,81013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,596,815$8.45M<0.01%+773,64113F-HR/ATimelineGroup
Palo Alto Investors LP1,514,504$8.01M1.23%-1,017,91513F-HRTimeline
Birchview Capital, LP1,465,867$7.75M4.41%-127,07113F-HRTimeline
GREAT POINT PARTNERS LLC1,350,000$7.14M1.75%new13F-HRTimeline
Fisher Asset Management, LLC1,348,259$7.13M<0.01%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management1,119,090$5.92M0.01%-474,18513F-HRTimelineGroup
Schonfeld Strategic Advisors LLC1,076,004$5.69M0.05%+623,56213F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,048,558$5.55M<0.01%+75,62313F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/865,613$4.58M<0.01%+599,17913F-HRTimelineGroup
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…859,049$4.54M0.54%-192,29413F-HRTimelineGroup
ACUTA CAPITAL PARTNERS, LLC849,076$4.49M3.19%-244,22413F-HRTimeline
NEXTBio Capital Management LP848,204$4.49M2.08%-265,80113F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC846,220$4.48M<0.01%-2,263,06613F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd828,879$4.38M0.08%+366,71313F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO847,702$4.32M<0.01%-22,31213F-HR/ATimelineGroup
BARCLAYS PLCin group BARCLAYS PLC790,041$4.18M<0.01%+195,26513F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC721,410$3.82M<0.01%+615,72813F-HRTimelineGroup
Burkehill Global Management, LP700,000$3.7M0.18%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC598,238$3.16M<0.01%+336,36213F-HRTimelineGroup
Atle Fund Management AB41,831$3.05M0.99%-542,50113F-HRTimeline
Seven Fleet Capital Management LP516,972$2.73M0.86%-51,77513F-HR/ATimeline
ArrowMark Colorado Holdings LLC514,793$2.72M0.07%new13F-HRTimeline
KVP Capital Advisors, LP500,000$2.65M1.98%new13F-HRTimeline
Connor, Clark & Lunn Investment Managem…497,818$2.63M0.01%+306,09413F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC494,300$2.61M<0.01%+179,55013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP439,784$2.32M<0.01%+98,18813F-HRTimelineGroup
DV Trading LLC423,566$2.24M0.2%+399,35913F-HRTimeline
Trexquant Investment LP421,831$2.23M0.02%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC375,320$1.99M<0.01%+352,69113F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC371,400$1.96M0.03%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co371,058$1.96M<0.01%-39,09913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY360,372$1.91M<0.01%-4,87313F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…360,125$1.91M<0.01%+43,27613F-HRTimelineGroup
Atom Investors LP344,933$1.82M0.13%+267,65213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp297,301$1.57M<0.01%-15,17913F-HRTimelineGroup
Nuveen, LLCin group TIAA290,972$1.54M<0.01%+2,04813F-HRTimelineGroup
Monashee Investment Management LLC258,865$1.37M0.74%-741,13513F-HRTimeline
Swiss National Bank220,700$1.17M<0.01%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC200,428$1.06M<0.01%+45,21013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD200,279$1.06M<0.01%+14,85613F-HRTimeline
Rafferty Asset Management, LLC195,867$1.04M<0.01%+44,12413F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…157,025$831K<0.01%+112,28313F-HRTimelineGroup
RHUMBLINE ADVISERS147,016$778K<0.01%+12,41113F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC146,607$776K<0.01%+56713F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC139,000$735K0.04%013F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC138,276$731K<0.01%new13F-HRTimelineGroup
Tema ETFs LLC138,276$731K0.05%+38,10013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\133,352$705K<0.01%+24,07913F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC121,889$645K<0.01%+41,74713F-HRTimelineGroup
Rhenman & Partners Asset Management AB115,113$609K0.08%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…112,316$594K<0.01%+104,26013F-HRTimeline
Creative Planningin group Creative Planning106,191$562K<0.01%-1,95313F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.101,207$535K<0.01%+37,30613F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/99,522$527K<0.01%+29,03413F-HRTimeline
TUDOR INVESTMENT CORP ET AL88,931$470K<0.01%new13F-HRTimeline
PROFUND ADVISORS LLC87,681$464K0.02%+30,43513F-HRTimeline
Harvest Investment Services, LLC87,652$464K0.08%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.83,940$451K<0.01%013F-HRTimeline
OPTIMIZE FINANCIAL INC.80,439$426K0.21%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC78,328$414K<0.01%+37,91613F-HRTimelineGroup
DRW Securities, LLC76,493$405K0.02%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc75,103$397K<0.01%+62,35013F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…74,084$389K<0.01%+4,50813F-HRTimelineGroup
Aquatic Capital Management LLC73,338$388K0.01%new13F-HRTimeline
Persistent Asset Partners Ltd72,193$382K0.15%+14,94013F-HRTimeline
Engineers Gate Manager LP71,753$380K<0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd70,121$371K0.01%-45,51313F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …67,466$357K<0.01%+27,14113F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources66,607$352K<0.01%013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.65,967$349K<0.01%+14,48513F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…64,205$340K<0.01%-9,78013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson55,600$294K<0.01%new13F-HR/ATimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…52,846$280K0.08%+1,29013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC50,202$266K<0.01%-75,99013F-HRTimelineGroup
Cinctive Capital Management LP48,740$258K0.02%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN47,740$253K<0.01%-97,05813F-HR/ATimelineGroup
SG Americas Securities, LLC47,670$252K<0.01%-58,86313F-HRTimeline
ExodusPoint Capital Management, LP44,030$233K<0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…43,914$232K<0.01%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC43,066$228K0.01%new13F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…38,113$202K<0.01%new13F-HRTimelineGroup
ALGERT GLOBAL LLC36,780$195K<0.01%new13F-HR/ATimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…35,923$190K0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS35,768$189K<0.01%+20,12313F-HRTimelineGroup
Police & Firemen's Retirement System of…35,503$188K<0.01%013F-HRTimeline
LPL Financial LLC35,470$188K<0.01%-9,00013F-HRTimeline
SmartHarvest Portfolios, LLC34,713$184K0.08%-213F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP33,100$175K<0.01%new13F-HRTimelineGroup
BLAIR WILLIAM & CO/IL30,760$163K<0.01%new13F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC30,655$162K<0.01%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM30,632$162K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND30,407$161K<0.01%013F-HRTimeline
VARCOV Co.30,401$161K0.06%new13F-HRTimeline
GROUP ONE TRADING LLC30,229$160K0.01%+24,98513F-HRTimeline
PSP Research LLC30,000$159K0.11%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC29,803$158K<0.01%-9,13313F-HRTimeline
EntryPoint Capital, LLC29,265$155K0.05%+16,10213F-HRTimeline
Simplicity Wealth,LLC28,350$150K0.01%-5,51913F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP27,497$145K<0.01%+3,52413F-HRTimelineGroup
SIMPLEX TRADING, LLC25,851$137K<0.01%+16,93913F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD25,100$133K<0.01%+10,20013F-HRTimeline
AXQ CAPITAL, LP25,058$133K0.02%-16,32013F-HRTimeline
Walleye Trading LLCin group Walleye Capital LLC25,000$132K<0.01%013F-HRTimelineGroup
E Fund Management Co., Ltd.24,622$130K<0.01%13F-HRTimeline
KLP KAPITALFORVALTNING AS24,600$130K<0.01%new13F-HRTimeline
Graham Capital Management, L.P.23,551$125K<0.01%-29,87613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…23,252$123K<0.01%+21,55413F-HRTimelineGroup
INDEPENDENT FINANCIAL GROUP, LLC22,779$121K<0.01%013F-HR/ATimeline
CAPTRUST FINANCIAL ADVISORS21,676$115K<0.01%+83013F-HRTimeline
HRT FINANCIAL LP19,851$105K<0.01%new13F-HRTimeline
Welch & Forbes LLC19,000$101K<0.01%013F-HRTimeline
ProShare Advisors LLC18,703$98.9K<0.01%-5,26913F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC18,000$95.2K0.01%+8,00013F-HRTimeline
Ikarian Capital, LLCin group Ikarian Capital, LLC18,000$95.2K0.01%-782,00013F-HRTimelineGroup
Cygnus Capital Advisors, LLC18,000$95K0.06%+8,00013F-HRTimeline
Independent Advisor Alliance17,894$94.7K<0.01%013F-HRTimeline
Strategic Wealth Partners, Ltd.16,825$89K0.01%+4,72513F-HRTimeline
Scientech Research LLC16,669$88.2K0.07%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC16,353$86.5K<0.01%+3,54613F-HRTimelineGroup
Invst, LLC16,000$84.6K0.01%new13F-HRTimeline
Sequoia Financial Advisors, LLC15,535$82.2K<0.01%-35913F-HRTimeline
M&T Bank Corpin group M&T Bank Corp15,043$79.6K<0.01%+14913F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.14,678$77.6K<0.01%+14,62113F-HRTimelineGroup
SIG BROKERAGE, LP14,496$76.7K0.02%-2,58013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS14,464$76.5K<0.01%new13F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…14,432$76.3K<0.01%new13F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth14,292$75.6K<0.01%-4,30313F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd13,845$73.2K<0.01%+1,55213F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC13,729$72.6K<0.01%-58213F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC13,045$69K<0.01%new13F-HRTimelineGroup
North Star Investment Management Corp.12,500$66.1K<0.01%013F-HRTimeline
XPONANCE LLC11,836$62.6K<0.01%+1,63513F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…11,038$58.4K<0.01%+10,62513F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…10,900$57.7K<0.01%-65813F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…10,621$56.2K<0.01%013F-HRTimelineGroup
Abel Hall, LLC10,524$55.7K0.01%-12,35813F-HRTimeline
Stonebrook Private Inc.10,365$54.8K0.01%+13513F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…10,200$54K<0.01%-108,32813F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…10,182$53.9K<0.01%+8,14013F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…6,142$32.5K<0.01%+1,77213F-HR/ATimelineGroup
MCF Advisors LLC5,540$29.3K<0.01%013F-HRTimeline
Parallel Advisors, LLC5,250$27.8K<0.01%new13F-HR/ATimeline
NISA INVESTMENT ADVISORS, LLC5,248$27.8K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC4,317$22.8K<0.01%+1,25813F-HRTimelineGroup
VSM Wealth Advisory, LLC3,000$15.9K<0.01%013F-HRTimeline
Sterling Capital Management LLC2,444$12.9K<0.01%-1,38313F-HRTimeline
Fortitude Family Office, LLC1,915$10.1K<0.01%-2,67613F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.1,336$7.07K<0.01%+24013F-HR/ATimelineGroup
Federation des caisses Desjardins du Qu…1,000$5.29K<0.01%+50013F-HRTimeline
Quantbot Technologies LP720$3.81K<0.01%new13F-HRTimeline
Caitong International Asset Management …719$3.8K<0.01%-23,86013F-HRTimeline
Farther Finance Advisors, LLC655$3.56K<0.01%-2513F-HRTimeline
MAI Capital Management614$3.25K<0.01%+59013F-HRTimeline
Allworth Financial LP592$3.13K<0.01%+57213F-HRTimeline
QUADRANT CAPITAL GROUP LLC405$2.14K<0.01%013F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC279$1.48K<0.01%+11513F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/235$1.24K<0.01%-713F-HRTimelineGroup
GAMMA Investing LLC224$1.19K<0.01%+19513F-HRTimeline
Marshall & Sterling Wealth Advisors Inc.200$1.06K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.184$973<0.01%-5313F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\77$407<0.01%new13F-HRTimelineGroup
Smartleaf Asset Management LLC69$352<0.01%013F-HRTimeline
SJS Investment Consulting Inc.27$143<0.01%013F-HRTimeline
Larson Financial Group LLC23$122<0.01%new13F-HRTimeline
Stone House Investment Management, LLC15$79<0.01%new13F-HRTimeline
Essential Partners LLC9$48<0.01%013F-HRTimeline
Sunbelt Securities, Inc.8$42<0.01%013F-HRTimeline
IFP Advisors, Inc6$32<0.01%013F-HRTimeline
Hughes Financial Services, LLC3$16<0.01%+213F-HRTimeline
Basecamp Wealth Advisors LLC1$5<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA6$00%-3,81513F-HRTimelineGroupValue filed as zero, left out of ratios.