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Welch & Forbes LLC

Position in CMPX — Compass Therapeutics, Inc.

CIK 105495 Boston, MA

Position in CMPX

as of Mar 31, 2026 · filed May 1, 2026
Position Value
$100,510
-$1,520 QoQ
Shares Held
19,000
0.0% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#140
of 200 holders
Holding Since
Sep 2025
3 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CMPX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

Welch & Forbes LLC holds $98,675,155 across 6 Biotechnology names. CMPX ranks #4 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 CMPX
Compass Therapeutics, Inc.
This page
19,000 $100,510

All Filings in CMPX

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3 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $100,510 19,000
2025-12-31 $102,030 19,000
2025-09-30 $52,500 15,000