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CITADEL ADVISORS LLC

Position in CYCN — Cyclerion Therapeutics, Inc.

CIK 1423053 MIAMI, FL

Position in CYCN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$202,705
+$174,401 QoQ
Shares Held
59,795
+227.4% QoQ
Ownership
1.28%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#6
of 21 holders
Holding Since
Sep 2020
12 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CYCN Over Time

Shares Held

Position Value (USD)

Derivatives in CYCN

reported options exposure · as of Mar 31, 2023
CallValue
$80,637
CallShares
9,290
PutValue
$868
PutShares
100

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. CYCN ranks #318 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CYCN

Export CSV
22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $202,705 59,795
2026-03-31 $28,304 18,261
2023-03-31 $868 2,000
2023-03-31 $80,637 185,800
2022-12-31 $1,574 2,400
2022-12-31 $163,212 248,800
2022-09-30 $9,159 10,651
2022-09-30 $208,722 242,700
2022-06-30 $132,034 240,500
2022-03-31 $158,730 143,000
2021-12-31 $61,576 35,800
2021-12-31 $335,056 194,800
2021-12-31 $160,190 93,134
2021-09-30 $225,288 73,384
2021-09-30 $482,911 157,300
2021-09-30 $164,552 53,600
2021-06-30 $394,680 101,200
2021-06-30 $352,141 90,293
2021-06-30 $239,070 61,300
2021-03-31 $39,690 14,226
2021-03-31 $56,916 20,400
2020-09-30 $71,744 11,800