Exhibit 99.1
EXHIBIT 1 – JOINT FILING AGREEMENT
JOINT FILING AGREEMENT
In accordance withRule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing with the other reporting person of a statement on Schedule 13G (including amendments thereto) with respect to the common stock, $0.001 par value of Castle Biosciences, Inc. and that this Agreement be included as an Exhibit to such joint filing.
IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this 11th day of February, 2020.
| MGC Venture Partners 2013 GP, LLC | ||||||
| By: | /s/ Joseph C. Cook III | |||||
| Name: | Joseph C. Cook III | |||||
| Title: | Managing Member | |||||
| MGC Venture Partners 2013, L.P. | ||||||
| By: | /s/ Joseph C. Cook III | |||||
| Name: | Joseph C. Cook III | |||||
| Title: | Managing Member of the General Partner | |||||
| MGC Venture Partners 2018 GP, LLC | ||||||
| By: | /s/ Jason S. Ferguson | |||||
| Name: | Jason S. Ferguson | |||||
| Title: | Managing Partner | |||||
| MGC Venture Partners 2018, L.P. | ||||||
| By: | /s/ Jason S. Ferguson | |||||
| Name: | Jason S. Ferguson | |||||
| Title: | Managing Partner of the General Partner | |||||
| MGC Venture Partners QP 2018, L.P. | ||||||
| By: | /s/ Jason S. Ferguson | |||||
| Name: | Jason S. Ferguson | |||||
| Title: | Managing Partner of the General Partner | |||||
| By: | /s/ Joseph C. Cook III | |||||
| Name: | Joseph C. Cook III | |||||
