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SIMPLEX TRADING, LLC

Position in ABOS — Acumen Pharmaceuticals, Inc.

CIK 1488542 CHICAGO, IL

Position in ABOS

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$41,097
+$38,520 QoQ
Shares Held
17,414
+643.2% QoQ
Ownership
0.024%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#49
of 84 holders
Holding Since
Jun 2022
7 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ABOS Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $69,553,517 across 195 Biotechnology names. ABOS ranks #114 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ABOS

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7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $41,097 17,414
2025-03-31 $2,577 2,343
2024-12-31 $2,048 1,191
2023-12-31 $82,260 21,422
2023-09-30 $47,509 11,448
2023-06-30 $21,866 4,546
2022-06-30 $12,558 2,672