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GROUP ONE TRADING LLC

Position in CYCN — Cyclerion Therapeutics, Inc.

CIK 932540 CHICAGO, IL

Position in CYCN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$650
+$353 QoQ
Shares Held
192
0.0% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#16
of 21 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CYCN 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. CYCN ranks #171 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CYCN

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $650 192
2026-03-31 $297 192
2025-12-31 $243 192
2025-09-30 $441 192
2025-06-30 $558 192
2025-03-31 $1,350 540
2024-12-31 $1,738 540
2024-09-30 $1,398 540
2024-06-30 $1,242 540
2024-03-31 $1,728 540
2023-12-31 $1,809 540
2023-09-30 $1,846 540
2023-06-30 $2,224 540
2023-03-31 $4,705 10,842
2022-12-31 $7,439 11,341
2022-09-30 $15,452 17,968
2022-06-30 $10,084 18,368
2022-03-31 $20,277 18,268
2021-12-31 $43,976 25,568
2021-09-30 $104,281 33,968
2021-06-30 $35,544 9,114
2021-03-31 $20,740 7,434
2020-12-31 $3,512 1,148
2020-09-30 $899 148
2020-06-30 $1,838 311
2020-03-31 $824 311