Company profile
Korsana Biosciences, Inc. Insider Trading
CYCNEvery SEC Form 4 insider trading filing for Korsana Biosciences, Inc. (CYCN) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001755237
- Filings
- 20
- Insiders
- 17
- Last filing
- 2026-09-09
Activity summary
Recent insider activity is bullish. Over the last 30 days, 4 insiders purchased shares. Buying was led by Fairmount Funds Management LLC.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Korsana Biosciences, Inc. insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $555K.
90 day insight
Over the last 90 days, Korsana Biosciences, Inc. insiders bought $243K (8 transactions) and sold $184K (1 transaction).
- Most active insider: Regina Margaret Graul with 3 transactions totaling $369K.
- Largest single sale: $184K by Regina Margaret Graul on Aug 14, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 9, 2026 | Fairmount Funds Management LLC | CYCN | Award | 48,445 | — | — |
| Sep 9, 2026 | Nimish P Shah | CYCN | Award | 48,445 | — | — |
| Sep 9, 2026 | Andrew Gottesdiener | CYCN | Award | 48,445 | — | — |
| Sep 9, 2026 | Michelle Patricia Pernice | CYCN | Award | 48,445 | — | — |
| Aug 14, 2026 | Regina Margaret Graul | CYCN | Option Exercise | 55,849 | $3.30 | $184K |
22 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Korsana Biosciences, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →