CMPX
insider transactionsCompass Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 2 different insiders made open-market purchases in the last 365 days, totalling $75.6K.
Net shares · 365d
+40.0K
40.0K buy · 0 sell
Net value · 365d
$75.6K
$75.6K in · $0 out
Sentiment · 365d
Net buying
100% buying · 0% selling
Open-market trades · 365d
2
40.0K buy · 0 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Chief Accounting Officer
$28.4K
15.0K sh · $1.89
Own +4%
-
Grant·A
General Counsel
$47.2K
25.0K sh · $1.89
Own +15%
-
Buy·P
Chief Accounting Officer
$28.4K
15.0K sh · $1.89
Own +4%
-
Buy·P
General Counsel
$47.2K
25.0K sh · $1.89
Own +15%
-
Other·F
CHIEF EXECUTIVE OFFICER
$239.2K
36.7K sh · $6.52
Own -1%
-
Other·F
CHIEF EXECUTIVE OFFICER
$250.3K
46.8K sh · $5.35
Own -1%
-
Grant·A
Barry Shin KEY
CFO
$0
670.0K sh
Own New
-
Grant·A
Barry Shin KEY
CFO
$646.2K
125.0K sh · $5.17
Own +31%
-
Grant·A
Chief Medical Officer
$0
1.0M sh
Own New
-
Grant·A
CEO
$0
2.0M sh
Own New
-
Grant·A
CEO
$1.3M
250.0K sh · $5.17
Own +4%
-
Grant·A
Chief Commercial Officer
$0
1.0M sh
Own New
-
Grant·A
Director
$0
90.0K sh
Own New
-
Grant·A
Chief Accounting Officer
$0
435.0K sh
Own New
-
Grant·A
Chief Accounting Officer
$323.1K
62.5K sh · $5.17
Own +20%
-
Grant·A
Director
$0
90.0K sh
Own New
-
Grant·A
Director
$0
90.0K sh
Own New
-
Grant·A
Director
$0
90.0K sh
Own New
-
Grant·A
Director
$0
90.0K sh
Own New
-
Grant·A
General Counsel
$0
720.0K sh
Own New
-
Grant·A
General Counsel
$775.5K
150.0K sh · $5.17
Own +714%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Apr 29, 2026 | Neil Lerner | Grant A | 15.0K | $28.4K |
| Apr 29, 2026 | Jonathan Anderman | Grant A | 25.0K | $47.2K |
| Apr 29, 2026 | Neil Lerner | Buy P | 15.0K | $28.4K |
| Apr 29, 2026 | Jonathan Anderman | Buy P | 25.0K | $47.2K |
| Feb 8, 2026 | Thomas J. Schuetz KEY | Other F | 36.7K | $239.2K |
| Jan 9, 2026 | Thomas J. Schuetz KEY | Other F | 46.8K | $250.3K |
| Jan 2, 2026 | Barry Shin KEY | Grant A | 670.0K | $0 |
| Jan 2, 2026 | Barry Shin KEY | Grant A | 125.0K | $646.2K |
| Jan 2, 2026 | Cynthia Sirard | Grant A | 1.0M | $0 |
| Jan 2, 2026 | Thomas J. Schuetz KEY | Grant A | 2.0M | $0 |
| Jan 2, 2026 | Thomas J. Schuetz KEY | Grant A | 250.0K | $1.3M |
| Jan 2, 2026 | Arjun Prasad | Grant A | 1.0M | $0 |
| Jan 2, 2026 | Richard S Lindahl | Grant A | 90.0K | $0 |
| Jan 2, 2026 | Neil Lerner | Grant A | 435.0K | $0 |
| Jan 2, 2026 | Neil Lerner | Grant A | 62.5K | $323.1K |
| Jan 2, 2026 | Mary Ann Gray | Grant A | 90.0K | $0 |
| Jan 2, 2026 | Carl L Gordon | Grant A | 90.0K | $0 |
| Jan 2, 2026 | Philip Ferneau | Grant A | 90.0K | $0 |
| Jan 2, 2026 | Ellen Chiniara | Grant A | 90.0K | $0 |
| Jan 2, 2026 | Jonathan Anderman | Grant A | 720.0K | $0 |
| Jan 2, 2026 | Jonathan Anderman | Grant A | 150.0K | $775.5K |
About CMPX insider trading
This page tracks insider transactions for Compass Therapeutics, Inc. (CMPX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.