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GROUP ONE TRADING LLC

Position in HOWL — Werewolf Therapeutics, Inc.

CIK 932540 CHICAGO, IL

Position in HOWL

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$673
-$885 QoQ
Shares Held
1,871
0.0% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#41
of 45 holders
Holding Since
Jun 2022
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in HOWL Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $113,693,049 across 200 Biotechnology names. HOWL ranks #169 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in HOWL

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $673 1,871
2026-03-31 $1,558 1,871
2025-12-31 $1,186 1,871
2025-09-30 $5,261 2,671
2023-12-31 $386 100
2022-09-30 $67 15
2022-06-30 $61 15