Security key
23255M204
Cyclerion Therapeutics, Inc. - Common Stock, no par value (CYCN)
CUSIP: 23255M204
Q2 2023 13F Holders as of 30 Jun 2023
- Security type / class
- Equity / Common Stock, no par value
- Total 13F shares
- 995,440
- Total 13F value
- $4,096,493
- Share change
- +995,430
- SEC-reported price per share
- $4.12
- Number of holders
- 17
- Value change
- +$4,096,489
- Number of buys
- 17
- Number of sells
- 1
- Shares outstanding
- 4,691,959
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2023
Institutions
17
Top holders
10
CYCN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Cyclerion Therapeutics, Inc. SEC filings
Cyclerion Therapeutics, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 23255M204
Recent filing periods:
Ownership snapshot
Top reported holders of CYCN - Cyclerion Therapeutics, Inc. - Common Stock, no par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Slate Path Capital LP
Disclosed value leader
Slate Path Capital LP
Comparable rows
15/15
Latest evidence
31 Mar 2023
13F
Lead comparable stake: 165%
Showing 1-6 of 15 holder rows.
Quick read
Slate Path Capital LP leads the comparable SEC ownership view at 165%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Slate Path Capital LP's linked filing trail.
Comparable ownership
Top 5
Slate Path Capital LP
165%
FMR LLC
78%
MFN Partners Management, LP
78%
Artal Group S.A.
64%
VANGUARD GROUP INC
38%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Slate Path Capital LP |
13F
Company
|
165%
|
$3,105,683
7,157,601 shares
|
— | 31 Mar 2023 |
| FMR LLC |
13F
Company
|
78%
|
$1,471,078
3,390,363 shares
|
— | 31 Mar 2023 |
| MFN Partners Management, LP |
13F
Company
|
78%
|
$1,470,580
3,389,215 shares
|
— | 31 Mar 2023 |
| Artal Group S.A. |
13F
Company
|
64%
|
$1,206,000
2,779,122 shares
|
— | 31 Mar 2023 |
| VANGUARD GROUP INC |
13F
Company
|
38%
|
$716,602
1,651,536 shares
|
— | 31 Mar 2023 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
14%
|
$256,971
592,237 shares
|
— | 31 Mar 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
17
Shares
995,440
Rows available
17
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2023 vs Q1 2026 Across Filers
Q1 2026 holders
17
Q2 2023 holders
17
Holder diff
0
| Investor | Q1 2026 Shares | Q2 2023 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend