CMPX DEFA14A SEC Filing Analysis

Latest settled — T+20d

CMPX ▲ +35.93% at T+20d

NEUTRAL call ✓ call won +35.93% · α vs SPY +30.47% · entry $1.67 → $2.27

Next anchor: T+60d in 6w

Currently $2.06 · +23.35% from $1.67 entry

Entry anchored
Apr 29, 08:07 AM ET
via Databento tick

T+1d

+5.99%

call +5.99% · α +4.96%

$1.77

settled 6w ago

T+5d

+16.77%

call +16.77% · α +13.66%

$1.95

settled 5w ago

T+20d

+35.93%

call +35.93% · α +30.47%

$2.27

settled 13d ago

T+60d

—

call — · α —

—

in 6w

Price Chart

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Executive Summary

Compass Therapeutics filed a DEFA14A (additional definitive proxy soliciting materials) on April 29, 2026. The filing content is unavailable, but the presence of dissident-proxy cross-filing amplifiers suggests a potential activist or proxy contest context. Without specific details, the impact remains uncertain.

Actionable Insight

Monitor for definitive proxy materials or subsequent filings that may reveal the nature of the proxy solicitation. The dissident-proxy amplifiers suggest heightened activist risk, but no concrete demands or financial data are available yet.

Key Facts

Filed DEFA14A on 2026-04-29
Market cap: $331M
Amplifiers indicate dissident-proxy context
Document content unavailable

Financial Impact

Not determinable from filing metadata alone

Risk Factors

Potential activist intervention or board challenge
Uncertainty due to lack of filing content

Market Snapshot

Exchange

Nasdaq

Sector

Biological Products, (No Diagnostic Substances)

Analyst Consensus

95% bullish (22 analysts)

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

Document	Accession Number
DEFA14A Filing (Primary)	0001140361-26-017650
Document: 0001140361-26-017650-index-headers.html	0001140361-26-017650
Document: 0001140361-26-017650-index.html	0001140361-26-017650
Document: 0001140361-26-017650.txt	0001140361-26-017650

7 reports for CMPX

T+1T+5T+20T+60

100% Hit rate 4 of 4 directional calls best @ T+20▲ +22.91%Apr 27, 2026

Filters

Reports for CMPX — sortable, filterable
	Type				Now
May 21, 2026 19d ago	Press Release BULLISH ★ 7/10	$2.07 $2.22	▲ +7.25%	▲ +5.57%	$2.06 (−0.48%)
May 5, 2026 5w ago	8-K BULLISH ★ 7/10	$1.95 $1.83	▼ −6.15%	▼ −8.14%	$2.06 (+5.64%)
Apr 29, 2026 5w ago	DEFA14A NEUTRAL ★ 4/10	$1.67 $1.95	▲ +16.77%	▲ +13.66%	$2.06 (+23.35%)
Apr 27, 2026 6w ago	8-K BULLISH ★ 7/10	$1.79 $1.94	▲ +8.38%	▲ +7.98%	$2.06 (+15.08%)
Apr 27, 2026 6w ago	Press Release BULLISH ★ 8/10	$1.79 $1.94	▲ +8.38%	▲ +7.98%	$2.06 (+15.08%)
Apr 24, 2026 6w ago	Press Release NEUTRAL ★ 5/10	$1.79 $1.94	▲ +8.38%	▲ +7.98%	$2.06 (+15.08%)
Mar 5, 2026 13w ago	8-K / PRESS-RELEASE MIXED ★ 7/10	$5.53 $5.19	▼ −6.15%	▼ −3.91%	$2.06 (−62.75%)

US Market Status

Market Closed — Opens Thu (9h 48m)

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