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GROUP ONE TRADING LLC

Position in RYTM — Rhythm Pharmaceuticals, Inc.

CIK 932540 CHICAGO, IL

Position in RYTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$330,980
+$126,050 QoQ
Shares Held
2,981
-40.3% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#212
of 299 holders
Holding Since
Sep 2020
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in RYTM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $113,695,832 across 200 Biotechnology names. RYTM ranks #49 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in RYTM

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $330,980 2,981
2024-06-30 $204,930 4,991
2024-03-31 $185,235 4,275
2021-12-31 $2,405 241
2021-09-30 $3,147 241
2021-06-30 $19,070 974
2021-03-31 $63,724 2,996
2020-12-31 $12,070 406
2020-09-30 $11,420 527