SpaceX~$1TSpaceX~$1T
Insider Buying
Subscribe
All stock lists

Compass Therapeutics, Inc. (NASDAQ:CMPX)

US · Delayed Price · Currency is USD
1.02+0.02 (+2.19%)
 
Market Cap183.69M-73.8%
Revenue (ttm)0
Net Income-73.45M-18.4%
EPS-0.41+7.0%
Shares Out180.09M
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume2,786,396
Open0.98
Previous Close1.00
Day's Range0.97 - 1.05
52-Week Range0.83 - 6.88
Beta0.91
AnalystsBuy
Price Target4.67(+357.84%)
Earnings DateNov 4, 2026
Insider Score
/ 100
CMPX Insider Score

Compass Therapeutics, Inc. has a live Insider Score.

Scored on 2 qualifying trades from 1 insider in the last 90 days.

Unlock the score

About CMPX

Compass Therapeutics, Inc. is a biopharmaceutical firm focused on developing cancer treatments, with several therapeutic candidates currently in clinical trials. The company's work involves creating antibody-based medicines designed to address a variety of human health conditions. Among its leading clinical-stage programs are CTX-009, an experimental bispecific antibody engineered to inhibit the Delta-like ligand 4/Notch and vascular endothelial growth factor A signaling pathways, both of which are crucial for the growth of new blood vessels and tumor vascularization. Another significant compound is CTX-471, an IgG4 monoclonal antibody that functions as an activator of CD137. Furthermore, their developmental pipeline features CTX-8371, a bispecific inhibitor that targets both PD-1 and PD-L1. The company was established in 2014 and operates from its headquarters in Boston, Massachusetts.

Address
80 Guest Street, Boston, MA, 02135, US
Market Cap
184 million
Employees
39
Industrial Classification
Biotechnology

What Are Insiders Doing?

Open-market buy / sell balanceNet Buying
Sold
$0
Bought
$21.25K

View the trades behind this meter — each links to its SEC Form 4 →

Open-market Form 4 purchases (code P) vs sales (code S) on file for this company. Grants, option exercises and tax withholdings are excluded. Informational only.

1 Day
+2.19%
5 Days
+8.50%
1 Month
-53.85%
6 Months
-81.11%
1 Year
-73.85%

$CMPX stock is featured in our Insider Score Rankings, and Insider Trades datasets.

→ All Stock Lists

Recently reported changes in CMPX holdings by institutional investors

Scanning latest 13F filings…

Latest 0 13F filings · Source: SEC EDGAR

View all institutional owners →

Insider Trading

Quarterly net insider trading by CMPX's directors and management

Net Shares Purchased by Insiders−20k−10k02025Q42026Q12026Q22026Q32026Q4

Source: SEC EDGAR (Form 4)

Corporate Lobbying

CMPX Estimated quarterly lobbying spending

Source: U.S. Senate LDA

U.S. Patents

New CMPX patent grants

Loading patent grants…

Source: USPTO Open Data Portal

Government Contracts

Estimated quarterly amount awarded to CMPX from public contracts

Source: USAspending.gov

Top ETF Holders

ETFs with the largest estimated holdings in CMPX

ETFEst. Holding Size
VTIVanguard Morningstar Total Stock Market ETF$10.02M
XBIState Street SPDR S&P Biotech ETF$5.03M
VXFVanguard Extended Market ETF$4.35M
IWMiShares Russell 2000 ETF$3.50M
VTWOVanguard Russell 2000 ETF$1.80M
FESMFidelity Enhanced Small Cap ETF$1.62M

Estimated from each fund’s disclosed top holdings × AUM

CMPX Insider Score

Our composite score: insider buying, sector, volume, tone & dilution

Members only

The live Insider Score for CMPX is included with Insider Access.

Unlock Insider Score

Bull Case vs Bear Case

AI-generated from CMPX’s recent data — informational, not investment advice

Generating analysis…

Insider Score

Our 0–100 Insider Score and the signals behind it.

Members only

The live Insider Score and its full factor breakdown are included with Insider Access.

Unlock Insider Score

Recent Insider Activity

Buys
2
Sells
0
Buy Value
$21.25K
Distinct Buyers
1

Frequently Asked Questions

Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.