Notice of Proposed Sale · 144
Castle Biosciences, Inc.
CSTLNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- CASTLE BIOSCIENCES INC
- Issuer CIK
- 0001447362
- SEC file number
- 001-38984
- Phone
- 8667889007
- Person for whose account securities are to be sold
- KRISTEN OELSCHLAGER
- Relationships to issuer
- Officer
- Street
- 1500 W. Parkwood Ave, Suite 400
- City
- Friendswood
- State / country code
- TX
- Postal code
- 77546
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 4,153 | 147,556.09 | 30,549,507 | 10/01/2026 | NASDAQ | Morgan Stanley Smith Barney LLC Executive Financial Services |
Broker / market maker — proposed row 1, entry 1
- Name
- Morgan Stanley Smith Barney LLC Executive Financial Services
- Street
- 1 New York Plaza
- Street (continued)
- 8th Floor
- City
- New York
- State / country code
- NY
- Postal code
- 10004
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 10/01/2026 | Exercise of Stock Options | Issuer | 4,153 | N | 10/01/2026 | Cash |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| 10b5-1 Sales for KRISTEN OELSCHLAGER | Common | 09/01/2026 | 4,152 | 138,643.58 |
| The Fritz Shorter Trust | Common | 08/25/2026 | 12,384 | 426,276.84 |
| The Fritz Shorter Trust | Common | 08/24/2026 | 12,218 | 411,587.77 |
| 10b5-1 Sales for KRISTEN OELSCHLAGER | Common | 08/03/2026 | 8,586 | 255,633.70 |
Seller — prior-sale row 1, entry 1
- Name
- 10b5-1 Sales for KRISTEN OELSCHLAGER
- Street
- 1500 W. Parkwood Ave, Suite 400
- City
- Friendswood
- State / country code
- TX
- Postal code
- 77546
Seller — prior-sale row 2, entry 1
- Name
- The Fritz Shorter Trust
- Street
- 1500 W. Parkwood Ave, Suite 400
- City
- Friendswood
- State / country code
- TX
- Postal code
- 77546
Seller — prior-sale row 3, entry 1
- Name
- The Fritz Shorter Trust
- Street
- 1500 W. Parkwood Ave, Suite 400
- City
- Friendswood
- State / country code
- TX
- Postal code
- 77546
Seller — prior-sale row 4, entry 1
- Name
- 10b5-1 Sales for KRISTEN OELSCHLAGER
- Street
- 1500 W. Parkwood Ave, Suite 400
- City
- Friendswood
- State / country code
- TX
- Postal code
- 77546
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 10/01/2026
- Signed
- /s/ Kristen Oelschlager
- Plan adoption dates
- 03/17/2026