Public ownership evidence

Compass Therapeutics, Inc. Common Stock (CMPX) Ownership Disclosures

Read CMPX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-02T12:01:24.000Z

Recent Form 4 activity

2026-10-022026-10-01Lerner NeilP20,000Not reported
2026-09-252026-09-24Lerner NeilP2,500Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

OPTIMIZE FINANCIAL INC.2026-06-302026-08-2880,160$175,550None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2632,300$70,737None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2567,713$148,291None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25148,291$67,713,000None
Palo Alto Investors LP2026-06-302026-08-205,831,813$12,771,670None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20106,570$233,388None
Palo Alto Investors LP2026-06-302026-08-195,831,813$12,771,670None
Palo Alto Investors LP2026-06-302026-08-185,831,813$12,771,670None
Seven Fleet Capital Management LP2026-06-302026-08-18233,066$510,415None
SummitTX Capital, L.P.2026-06-302026-08-1512,000$26,280None
Graham Capital Management, L.P.2026-06-302026-08-1522,857$50,057None
SEI INVESTMENTS CO2026-06-302026-08-1520,845$45,651None
SEI INVESTMENTS CO2026-06-302026-08-15707$1,550None
Federation des caisses Desjardins du Quebec2026-06-302026-08-154,000$8,760None
JPL Wealth Management, LLC2026-06-302026-08-1589$195None
Rafferty Asset Management, LLC2026-06-302026-08-15190,126$416,376None
ENAVATE SCIENCES GP, LLC2026-06-302026-08-157,788,150$17,056,049None
ADAR1 Capital Management, LLC2026-06-302026-08-15122,132$267,469None
Artia Global Partners LP2026-06-302026-08-15383,200$839,208None
DV EQUITIES, LLC2026-06-302026-08-15233,066$510,415None
XTX Topco Ltd2026-06-302026-08-15217,485$476,292None
Prestige Wealth Management Group LLC2026-06-302026-08-157,750$16,973None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15303,139$663,874None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15303,139$663,874None
ExodusPoint Capital Management, LP2026-06-302026-08-1567,478$147,777None
Qube Research & Technologies Ltd2026-06-302026-08-153,687,489$8,075,601None
Caption Management, LLC2026-06-302026-08-15263,577$577,234None
OSAIC HOLDINGS, INC.2026-06-302026-08-1514,585$31,941None
OSAIC HOLDINGS, INC.2026-06-302026-08-156,724$14,726None
OSAIC HOLDINGS, INC.2026-06-302026-08-1520,656$45,237None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1592,227$201,975None
Squarepoint Ops LLC2026-06-302026-08-151,007,507$2,206,440None
Betterment LLC2026-06-302026-08-1530,143$66,000None
MetLife Investment Management, LLC2026-06-302026-08-1571,421$156,412None
Engineers Gate Manager LP2026-06-302026-08-1526,335$57,674None
Birchview Capital, LP2026-06-302026-08-151,675,000$3,668,250None
JANE STREET GROUP, LLC2026-06-302026-08-1559,955$131,301None
JANE STREET GROUP, LLC2026-06-302026-08-15170,000$372,300Call
Orion Porfolio Solutions, LLC2026-06-302026-08-15213,863$468,360None
Legal & General Group Plc2026-06-302026-08-1540,967$89,717None
Legal & General Group Plc2026-06-302026-08-1522,465$49,198None
Legal & General Group Plc2026-06-302026-08-1511,671$25,559None
HRT FINANCIAL LP2026-06-302026-08-15170,102$372,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1532,600$71,394Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1556,200$123,078Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15308,295$675,166None
Ikarian Capital, LLC2026-06-302026-08-1518,000$39,419None
Exome Asset Management LLC2026-06-302026-08-15276,165$604,801None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-154,713,247$10,322,011None
TANG CAPITAL MANAGEMENT LLC2026-06-302026-08-1517,990,782$39,399,813None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.