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CMPX · Compass Therapeutics, Inc.

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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475

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CMPX

Name: Compass Therapeutics, Inc. (CMPX) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

Compass Therapeutics, Inc.

PHARMA & BIOTECH · BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES) · CIK 0001738021

C-SUITE BUYING · 2☆ WATCH

INSIDER NET · 180D

$75.6K

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

152

13F, latest reported quarter

REVENUE GROWTH

-100.0%

XBRL, annual

NET MARGIN

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net +$75.6K over 180 days

more than 74% of Pharma & Biotech

CONGRESS

no member of Congress has reported trading it

FUNDS

152 funds added or opened last quarter

more than 79% of Pharma & Biotech

REVENUE

-100.0% year over year

the lowest in Pharma & Biotech

MARGIN

no margin: this company reports no revenue to divide by

BUYBACKS

no share repurchases reported

SHORT

22.1% of shares outstanding short · 17.6 days to cover · settled 2026-07-31

more than 97% of Pharma & Biotech

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

152 funds added or opened positions in the latest 13F quarter, of 217 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN -29.2%

-29.2%12M

INSIDER BUY

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

Insiders are net buyers of their own stock.

The record shows a net $75.6K bought by insiders over 180 days, 152 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

UTHR CPIX MRNA REGN LLY ALNY ELF CITR MDGL DNA VRTX NUVL

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Compass Therapeutics, Inc. insiders bought a net $75.6K of stock across 51 Form 4 purchases and sales, with 2 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-04.

INSIDER

FILED

VALUE

Lerner Neil

Chief Accounting Officer

BUY

2026-04-29

15,000.0

$28.4K

Anderman Jonathan

General Counsel

BUY

2026-04-29

25,000.0

$47.2K

Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

BUY

2025-05-27

10,000.0

$21.1K

GORDON CARL L

Director

SELL

2025-04-09

3,571,428.0

$5.7M

OrbiMed Capital GP VI LLC

Director

SELL

2025-04-09

3,571,428.0

$5.7M

51 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 46 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

TANG CAPITAL MANAGEMENT LLC

17,990,782.0 sh

$39.4M

ORBIMED ADVISORS LLC

15,219,994.0 sh

$33.3M

MONTANOVA CAPITAL, LLC

14,101,159.0 sh

$30.9M

Palo Alto Investors LP

11,663,626.0 sh

$25.5M

BlackRock, Inc.

11,281,781.0 sh

$24.7M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

ALPS Medical Breakthroughs ETF

$895.7K POSITION · AS OF 2026-02-28

0.6%

Meridian Small Cap Growth Fund

$1.1M POSITION · AS OF 2026-03-31

0.5%

Tema Oncology ETF

$720.2K POSITION · AS OF 2026-02-28

0.5%

VOYA SMALL COMPANY PORTFOLIO

$654.3K POSITION · AS OF 2026-03-31

0.4%

State Street(R) SPDR(R) S&P(R) Biotech ETF

$19.5M POSITION · AS OF 2026-03-31

0.3%

Royce Capital Fund - Micro-Cap Portfolio

$263.2K POSITION · AS OF 2026-03-31

0.3%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Clinical pipeline

ClinicalTrials.gov · 6 registered trials, 4 still enrolling or running — a status change here is dated weeks before the press release

Phase 1

2 ACTIVE

Phase 2

1 ACTIVE

Multi-phase

1 ACTIVE

What changed recently

A Study of CTX-009 in Combination With Paclitaxel in Adult Patients With Unresectable Ad

2026-09-03 · Completion moved 2026-12-01 → 2027-08-31

PHASE2,PHASE3

TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$0	$850.0K	$0	—
OPERATING INCOME	$-72.8M	$-56.6M	$-50.4M	$-41.7M
NET INCOME	$-66.5M	$-49.4M	$-42.5M	$-39.2M
OPERATING CASH FLOW	$-49.1M	$-44.9M	$-40.6M	$-34.1M
CASH	$30.6M	$43.5M	$24.2M	$34.9M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-04 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE