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Frank Stokes
Frank Stokes files insider transactions with the SEC as a chief financial officer of Castle Biosciences (CSTL). We hold 3 disclosed purchases and sales filed since 17 December 2019, 1 of them in the last 90 days.
- Files forCSTL
- Disclosed buys and sells3 in all, 1 in the last 90 days
- Last disclosure18 August 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 13 December 2019 — 14 August 2026Chief Financial Officer · Castle Biosciences (CSTL)136 Form 4 lines · source: SEC Form 4
- Filed 17 June 2021 — 9 June 2026Director · Exagen (XGN)6 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 24,908 shares of Castle BiosciencesSEC Form 418 August 2026Common Stock · traded 14 August 2026 · filed 18 August 2026
- was granted 37,500 shares of Exagen (a derivative holding)SEC Form 422 June 2026Stock Option(right to buy) · traded 9 June 2026 · filed 22 June 2026
- ▼ sold on the open market 6,001 shares of Castle BiosciencesSEC Form 49 March 2026Common Stock · traded 5 March 2026 · filed 9 March 2026
- ▼ sold on the open market 6,001 shares of Castle BiosciencesSEC Form 49 March 2026Common Stock · traded 5 March 2026 · filed 9 March 2026
- ▼ sold on the open market 5,300 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- exercised options over 3,800 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Stock option (right to buy) · traded 4 March 2026 · filed 5 March 2026
- ▼ sold on the open market 1,700 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- had shares withheld for tax on 3,611 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- was granted 48,367 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Restricted Stock Units · traded 3 March 2026 · filed 5 March 2026
- exercised options over 12,186 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Restricted Stock Units · traded 4 March 2026 · filed 5 March 2026
- exercised options over 11,960 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Restricted Stock Units · traded 4 March 2026 · filed 5 March 2026
- exercised options over 3,800 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Stock option (right to buy) · traded 4 March 2026 · filed 5 March 2026
- exercised options over 24,146 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- had shares withheld for tax on 10,732 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- exercised options over 3,800 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- was granted 48,367 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Restricted Stock Units · traded 3 March 2026 · filed 5 March 2026
- exercised options over 12,186 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Restricted Stock Units · traded 4 March 2026 · filed 5 March 2026
- ▼ sold on the open market 5,300 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- ▼ sold on the open market 1,700 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- had shares withheld for tax on 3,611 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- exercised options over 24,146 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- had shares withheld for tax on 10,732 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- exercised options over 3,800 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- exercised options over 11,960 shares of Castle Biosciences (a derivative holding)SEC Form 45 March 2026Restricted Stock Units · traded 4 March 2026 · filed 5 March 2026
- was granted 8,124 shares of Castle BiosciencesSEC Form 414 January 2026Common Stock · traded 12 January 2026 · filed 14 January 2026
- was granted 8,124 shares of Castle Biosciences (a derivative holding)SEC Form 414 January 2026Performance-Based Stock Unit · traded 12 January 2026 · filed 14 January 2026
- was granted 8,124 shares of Castle Biosciences (a derivative holding)SEC Form 414 January 2026Performance-Based Stock Unit · traded 12 January 2026 · filed 14 January 2026
- was granted 8,124 shares of Castle BiosciencesSEC Form 414 January 2026Common Stock · traded 12 January 2026 · filed 14 January 2026
- ▼ sold on the open market 4,496 shares of Castle BiosciencesSEC Form 415 December 2025Common Stock · traded 11 December 2025 · filed 15 December 2025
- exercised options over 14,616 shares of Castle Biosciences (a derivative holding)SEC Form 411 December 2025Restricted Stock Units · traded 9 December 2025 · filed 11 December 2025
- exercised options over 6,170 shares of Castle Biosciences (a derivative holding)SEC Form 411 December 2025Restricted Stock Units · traded 10 December 2025 · filed 11 December 2025
- exercised options over 14,616 shares of Castle BiosciencesSEC Form 411 December 2025Common Stock · traded 9 December 2025 · filed 11 December 2025
- had shares withheld for tax on 6,534 shares of Castle BiosciencesSEC Form 411 December 2025Common Stock · traded 9 December 2025 · filed 11 December 2025
- exercised options over 6,170 shares of Castle BiosciencesSEC Form 411 December 2025Common Stock · traded 10 December 2025 · filed 11 December 2025
- had shares withheld for tax on 2,758 shares of Castle BiosciencesSEC Form 411 December 2025Common Stock · traded 10 December 2025 · filed 11 December 2025
- ▼ sold on the open market 5,388 shares of Castle BiosciencesSEC Form 413 November 2025Common Stock · traded 11 November 2025 · filed 13 November 2025
- exercised options over 9,744 shares of Castle Biosciences (a derivative holding)SEC Form 412 August 2025Performance-Based Stock Unit · traded 8 August 2025 · filed 12 August 2025
- exercised options over 9,744 shares of Castle BiosciencesSEC Form 412 August 2025Common Stock · traded 8 August 2025 · filed 12 August 2025
- had shares withheld for tax on 4,356 shares of Castle BiosciencesSEC Form 412 August 2025Common Stock · traded 8 August 2025 · filed 12 August 2025
- was granted 9,000 shares of Exagen (a derivative holding)SEC Form 412 June 2025Stock Option(right to buy) · traded 10 June 2025 · filed 12 June 2025
- was granted 47,838 shares of Castle Biosciences (a derivative holding)SEC Form 46 March 2025Restricted Stock Units · traded 4 March 2025 · filed 6 March 2025
- exercised options over 12,186 shares of Castle Biosciences (a derivative holding)SEC Form 46 March 2025Restricted Stock Units · traded 4 March 2025 · filed 6 March 2025
- exercised options over 12,186 shares of Castle BiosciencesSEC Form 46 March 2025Common Stock · traded 4 March 2025 · filed 6 March 2025
- had shares withheld for tax on 5,448 shares of Castle BiosciencesSEC Form 46 March 2025Common Stock · traded 4 March 2025 · filed 6 March 2025
- ▼ sold on the open market 8,046 shares of Castle BiosciencesSEC Form 424 February 2025Common Stock · traded 20 February 2025 · filed 24 February 2025
- exercised options over 14,617 shares of Castle Biosciences (a derivative holding)SEC Form 411 December 2024Restricted Stock Units · traded 9 December 2024 · filed 11 December 2024
- exercised options over 2,000 shares of Castle Biosciences (a derivative holding)SEC Form 411 December 2024Restricted Stock Units · traded 10 December 2024 · filed 11 December 2024
- exercised options over 6,169 shares of Castle Biosciences (a derivative holding)SEC Form 411 December 2024Restricted Stock Units · traded 10 December 2024 · filed 11 December 2024
- exercised options over 14,617 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 9 December 2024 · filed 11 December 2024
- had shares withheld for tax on 6,571 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 9 December 2024 · filed 11 December 2024
- exercised options over 2,000 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- had shares withheld for tax on 900 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- exercised options over 6,169 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- had shares withheld for tax on 2,773 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- ▼ sold on the open market 6,123 shares of Castle BiosciencesSEC Form 419 November 2024Common Stock · traded 15 November 2024 · filed 19 November 2024
- ▼ sold on the open market 800 shares of Castle BiosciencesSEC Form 419 November 2024Common Stock · traded 15 November 2024 · filed 19 November 2024
- ▼ sold on the open market 4,600 shares of Castle BiosciencesSEC Form 413 August 2024Common Stock · traded 7 August 2024 · filed 13 August 2024
- ▼ sold on the open market 5,400 shares of Castle BiosciencesSEC Form 413 August 2024Common Stock · traded 7 August 2024 · filed 13 August 2024
- was granted 9,744 shares of Castle Biosciences (a derivative holding)SEC Form 413 August 2024Performance-Based Stock Unit · traded 9 August 2024 · filed 13 August 2024
- was granted 9,745 shares of Castle BiosciencesSEC Form 413 August 2024Common Stock · traded 9 August 2024 · filed 13 August 2024
- had shares withheld for tax on 2,822 shares of Castle BiosciencesSEC Form 413 August 2024Common Stock · traded 9 August 2024 · filed 13 August 2024
- was granted 9,000 shares of Exagen (a derivative holding)SEC Form 412 June 2024Stock Option(right to buy) · traded 10 June 2024 · filed 12 June 2024
- was granted 48,744 shares of Castle Biosciences (a derivative holding)SEC Form 46 March 2024Restricted Stock Units · traded 4 March 2024 · filed 6 March 2024
- exercised options over 14,617 shares of Castle Biosciences (a derivative holding)SEC Form 412 December 2023Restricted Stock Units · traded 9 December 2023 · filed 12 December 2023
- exercised options over 6,170 shares of Castle Biosciences (a derivative holding)SEC Form 412 December 2023Restricted Stock Units · traded 10 December 2023 · filed 12 December 2023
- exercised options over 2,000 shares of Castle Biosciences (a derivative holding)SEC Form 412 December 2023Restricted Stock Units · traded 10 December 2023 · filed 12 December 2023
- exercised options over 14,617 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 9 December 2023 · filed 12 December 2023
- had shares withheld for tax on 4,269 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 9 December 2023 · filed 12 December 2023
- exercised options over 6,170 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- had shares withheld for tax on 1,802 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- exercised options over 2,000 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- had shares withheld for tax on 584 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- was granted 9,000 shares of Exagen (a derivative holding)SEC Form 413 June 2023Stock Option(right to buy) · traded 9 June 2023 · filed 13 June 2023
- exercised options over 4,000 shares of Castle Biosciences (a derivative holding)SEC Form 45 April 2023Stock option (right to buy) · traded 4 April 2023 · filed 5 April 2023
- exercised options over 4,000 shares of Castle BiosciencesSEC Form 45 April 2023Common Stock · traded 4 April 2023 · filed 5 April 2023
- was granted 58,467 shares of Castle Biosciences (a derivative holding)SEC Form 413 December 2022Restricted Stock Units · traded 9 December 2022 · filed 13 December 2022
- exercised options over 2,000 shares of Castle Biosciences (a derivative holding)SEC Form 413 December 2022Restricted Stock Units · traded 10 December 2022 · filed 13 December 2022
- exercised options over 6,170 shares of Castle Biosciences (a derivative holding)SEC Form 413 December 2022Restricted Stock Units · traded 10 December 2022 · filed 13 December 2022
- exercised options over 2,000 shares of Castle BiosciencesSEC Form 413 December 2022Common Stock · traded 10 December 2022 · filed 13 December 2022
- had shares withheld for tax on 589 shares of Castle BiosciencesSEC Form 413 December 2022Common Stock · traded 10 December 2022 · filed 13 December 2022
- exercised options over 6,170 shares of Castle BiosciencesSEC Form 413 December 2022Common Stock · traded 10 December 2022 · filed 13 December 2022
- had shares withheld for tax on 1,817 shares of Castle BiosciencesSEC Form 413 December 2022Common Stock · traded 10 December 2022 · filed 13 December 2022
- was granted 9,000 shares of Exagen (a derivative holding)SEC Form 421 June 2022Stock Option(right to buy) · traded 16 June 2022 · filed 21 June 2022
- exercised options over 4,000 shares of Castle Biosciences (a derivative holding)SEC Form 416 May 2022Stock option (right to buy) · traded 12 May 2022 · filed 16 May 2022
- exercised options over 4,000 shares of Castle BiosciencesSEC Form 416 May 2022Common Stock · traded 12 May 2022 · filed 16 May 2022
- was granted 1,114 shares of Castle BiosciencesSEC Form 428 April 2022Common Stock · traded 26 April 2022 · filed 28 April 2022
- was granted 42,550 shares of Castle Biosciences (a derivative holding)SEC Form 414 December 2021Stock option (right to buy) · traded 10 December 2021 · filed 14 December 2021
- was granted 24,679 shares of Castle Biosciences (a derivative holding)SEC Form 414 December 2021Restricted Stock Units · traded 10 December 2021 · filed 14 December 2021
- exercised options over 2,000 shares of Castle Biosciences (a derivative holding)SEC Form 414 December 2021Restricted Stock Units · traded 10 December 2021 · filed 14 December 2021
- exercised options over 2,000 shares of Castle BiosciencesSEC Form 414 December 2021Common Stock · traded 10 December 2021 · filed 14 December 2021
- had shares withheld for tax on 895 shares of Castle BiosciencesSEC Form 414 December 2021Common Stock · traded 10 December 2021 · filed 14 December 2021
- was granted 15,000 shares of Exagen (a derivative holding)SEC Form 421 June 2021Stock Option(right to buy) · traded 17 June 2021 · filed 21 June 2021
- exercised options over 11,600 shares of Castle BiosciencesSEC Form 417 June 2021Common Stock · traded 15 June 2021 · filed 17 June 2021
- ▼ sold on the open market 11,600 shares of Castle BiosciencesSEC Form 417 June 2021Common Stock · traded 15 June 2021 · filed 17 June 2021
- exercised options over 2,127 shares of Castle BiosciencesSEC Form 417 June 2021Common Stock · traded 16 June 2021 · filed 17 June 2021
- ▼ sold on the open market 2,127 shares of Castle BiosciencesSEC Form 417 June 2021Common Stock · traded 16 June 2021 · filed 17 June 2021
- exercised options over 1,273 shares of Castle BiosciencesSEC Form 417 June 2021Common Stock · traded 17 June 2021 · filed 17 June 2021
- ▼ sold on the open market 1,273 shares of Castle BiosciencesSEC Form 417 June 2021Common Stock · traded 17 June 2021 · filed 17 June 2021
- exercised options over 11,600 shares of Castle Biosciences (a derivative holding)SEC Form 417 June 2021Stock option (right to buy) · traded 15 June 2021 · filed 17 June 2021
- exercised options over 2,127 shares of Castle Biosciences (a derivative holding)SEC Form 417 June 2021Stock option (right to buy) · traded 16 June 2021 · filed 17 June 2021
- exercised options over 1,273 shares of Castle Biosciences (a derivative holding)SEC Form 417 June 2021Stock option (right to buy) · traded 17 June 2021 · filed 17 June 2021
- exercised options over 7,500 shares of CSTLSEC Form 413 January 2021Common Stock · traded 11 January 2021 · filed 13 January 2021
- ▼ sold on the open market 1,300 shares of CSTLSEC Form 413 January 2021Common Stock · traded 11 January 2021 · filed 13 January 2021
- ▼ sold on the open market 6,000 shares of CSTLSEC Form 413 January 2021Common Stock · traded 11 January 2021 · filed 13 January 2021
- ▼ sold on the open market 200 shares of CSTLSEC Form 413 January 2021Common Stock · traded 11 January 2021 · filed 13 January 2021
- exercised options over 7,500 shares of CSTLSEC Form 413 January 2021Common Stock · traded 12 January 2021 · filed 13 January 2021
- ▼ sold on the open market 1,500 shares of CSTLSEC Form 413 January 2021Common Stock · traded 12 January 2021 · filed 13 January 2021
- ▼ sold on the open market 4,900 shares of CSTLSEC Form 413 January 2021Common Stock · traded 12 January 2021 · filed 13 January 2021
- ▼ sold on the open market 1,100 shares of CSTLSEC Form 413 January 2021Common Stock · traded 12 January 2021 · filed 13 January 2021
- exercised options over 7,500 shares of CSTL (a derivative holding)SEC Form 413 January 2021Stock option (right to buy) · traded 11 January 2021 · filed 13 January 2021
- exercised options over 7,500 shares of CSTL (a derivative holding)SEC Form 413 January 2021Stock option (right to buy) · traded 12 January 2021 · filed 13 January 2021
- was granted 31,000 shares of Castle Biosciences (a derivative holding)SEC Form 414 December 2020Stock option (right to buy) · traded 10 December 2020 · filed 14 December 2020
- was granted 8,000 shares of Castle Biosciences (a derivative holding)SEC Form 414 December 2020Restricted Stock Units · traded 10 December 2020 · filed 14 December 2020
- exercised options over 2,000 shares of Castle Biosciences (a derivative holding)SEC Form 44 December 2020Stock option (right to buy) · traded 3 December 2020 · filed 4 December 2020
- exercised options over 2,000 shares of Castle BiosciencesSEC Form 44 December 2020Common Stock · traded 3 December 2020 · filed 4 December 2020
- exercised options over 13,000 shares of Castle Biosciences (a derivative holding)SEC Form 416 November 2020Stock option (right to buy) · traded 12 November 2020 · filed 16 November 2020
- exercised options over 13,000 shares of Castle Biosciences (a derivative holding)SEC Form 416 November 2020Stock option (right to buy) · traded 13 November 2020 · filed 16 November 2020
- exercised options over 13,000 shares of Castle BiosciencesSEC Form 416 November 2020Common Stock · traded 12 November 2020 · filed 16 November 2020
- ▼ sold on the open market 5,079 shares of Castle BiosciencesSEC Form 416 November 2020Common Stock · traded 12 November 2020 · filed 16 November 2020
- ▼ sold on the open market 2,121 shares of Castle BiosciencesSEC Form 416 November 2020Common Stock · traded 12 November 2020 · filed 16 November 2020
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.