CIK 0001755237 · Non-accelerated filer<br>Smaller reporting company
Korsana Biosciences, Inc.
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- KRSA
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- MA
- Entity type
- operating
- EIN
- 831895370
- Phone
- (781) 516-2325
- Business address
- 203 CRESCENT STREET, BLDGS. #3/3A/4, SUITE 503, WALTHAM, MA, 02453
- Former names
- Cyclerion Therapeutics, Inc.
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 1 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-09 | Pernice Michelle Patricia Director | Grant or award · Stock Option (Right to Buy) | +48,445 | 48,445 | ||
| 2026-09-09 | Shah Nimish P Director | Grant or award · Stock Option (Right to Buy) | +48,445 | 48,445 | ||
| 2026-09-09 | Fairmount Funds Management LLC Director | Grant or award · Stock Option (Right to Buy) | +48,445 | 48,445 | ||
| 2026-09-09 | Gottesdiener Andrew Director | Grant or award · Stock Option (Right to Buy) | +48,445 | 48,445 | ||
| 2026-08-14 | CHICKO RHONDA M. Chief Financial Officer | Option exercise | +25,000 | $2.36 | $59K | 25,018 |
| 2026-08-14 | CHICKO RHONDA M. Chief Financial Officer | Option exercise · Option to Purchase | −25,000 | 0 | ||
| 2026-08-14 | Graul Regina Margaret See Remarks | Option exercise | +55,849 | $3.30 | $184K | 156,152 |
| 2026-08-14 | Graul Regina Margaret See Remarks | Shares withheld for taxes | −48,629 | $3.79 | $184K | 107,523 |
| 2026-08-14 | Graul Regina Margaret See Remarks | Option exercise · Option to Purchase | −55,849 | 0 | ||
| 2026-07-16 | Hecht Peter M Director | Conversion | +351,037 | 910,240 | ||
| 2026-07-16 | Hecht Peter M Director | Conversion · Series A Convertible Preferred Stock | −351,037 | 0 | ||
| 2025-08-07 | CHICKO RHONDA M. Chief Financial Officer | Grant or award · Stock Option (Right to Buy) | +25,000 | 25,000 | ||
| 2025-03-25 | Hecht Peter M Director | Grant or award | +181,818 | $2.75 | $500K | 559,203 |
| 2025-03-25 | Higgins Michael J Director | Grant or award | +9,090 | $2.75 | $25K | 30,740 |
| 2024-11-21 | Slate Path Capital LP 10% owner | Sale | −357,880 | $1.55 | $555K | 0 |
| 2024-08-05 | Graul Regina Margaret See Remarks | Grant or award · Stock Option (Right to Buy) | +55,849 | 55,849 | ||
| 2024-01-01 | Hecht Peter M Director | Grant or award | +15,000 | 377,385 | ||
| 2024-01-01 | Graul Regina Margaret President | Grant or award | +50,000 | 100,303 | ||
| 2023-12-01 | Hecht Peter M Director | Grant or award | +15,000 | 362,385 | ||
| 2023-11-30 | MCGUIRE TERRANCE Director | Grant or award | +5,000 | 5,552 |
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