Follow the people · Insider
Tobin W. Juvenal
Tobin W. Juvenal files insider transactions with the SEC as a chief commercial officer of Castle Biosciences (CSTL). We hold 7 disclosed purchases and sales filed since 21 June 2021, 6 of them in the last 90 days.
- Files forCSTL
- Disclosed buys and sells7 in all, 6 in the last 90 days
- Last disclosure2 September 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 17 June 2021 — 31 August 2026Chief Commercial Officer · Castle Biosciences (CSTL)110 Form 4 lines · source: SEC Form 4
Everything they disclosed
110 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 1,730 shares of Castle BiosciencesSEC Form 42 September 2026Common Stock · traded 31 August 2026 · filed 2 September 2026
- ▼ sold on the open market 9,050 shares of Castle BiosciencesSEC Form 427 August 2026Common Stock · traded 25 August 2026 · filed 27 August 2026
- ▼ sold on the open market 1,730 shares of Castle BiosciencesSEC Form 419 August 2026Common Stock · traded 17 August 2026 · filed 19 August 2026
- ▼ sold on the open market 1,301 shares of Castle BiosciencesSEC Form 46 August 2026Common Stock · traded 24 November 2025 · filed 6 August 2026
- ▼ sold on the open market 8,149 shares of Castle BiosciencesSEC Form 44 August 2026Common Stock · traded 31 July 2026 · filed 4 August 2026
- ▼ sold on the open market 7,270 shares of Castle BiosciencesSEC Form 44 August 2026Common Stock · traded 31 July 2026 · filed 4 August 2026
- ▼ sold on the open market 1,891 shares of Castle BiosciencesSEC Form 44 August 2026Common Stock · traded 31 July 2026 · filed 4 August 2026
- ▼ sold on the open market 1,730 shares of Castle BiosciencesSEC Form 44 August 2026Common Stock · traded 3 August 2026 · filed 4 August 2026
- exercised options over 11,210 shares of Castle BiosciencesSEC Form 426 May 2026Common Stock · traded 21 May 2026 · filed 26 May 2026
- exercised options over 11,210 shares of Castle Biosciences (a derivative holding)SEC Form 426 May 2026Stock option (right to buy) · traded 21 May 2026 · filed 26 May 2026
- ▼ sold on the open market 20,863 shares of Castle BiosciencesSEC Form 416 March 2026Common Stock · traded 12 March 2026 · filed 16 March 2026
- ▼ sold on the open market 20,863 shares of Castle BiosciencesSEC Form 416 March 2026Common Stock · traded 12 March 2026 · filed 16 March 2026
- had shares withheld for tax on 3,716 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- exercised options over 25,771 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- had shares withheld for tax on 10,399 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 13,811 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
- 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 13,811 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
- had shares withheld for tax on 3,716 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 3 March 2026 · filed 5 March 2026
- exercised options over 25,771 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- had shares withheld for tax on 10,399 shares of Castle BiosciencesSEC Form 45 March 2026Common Stock · traded 4 March 2026 · filed 5 March 2026
- was granted 9,207 shares of Castle BiosciencesSEC Form 414 January 2026Common Stock · traded 12 January 2026 · filed 14 January 2026
- was granted 9,207 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 9,207 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 9,207 shares of Castle BiosciencesSEC Form 414 January 2026Common Stock · traded 12 January 2026 · filed 14 January 2026
- ▼ sold on the open market 13,200 shares of Castle BiosciencesSEC Form 415 December 2025Common Stock · traded 11 December 2025 · filed 15 December 2025
- exercised options over 15,961 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 15,961 shares of Castle BiosciencesSEC Form 411 December 2025Common Stock · traded 9 December 2025 · filed 11 December 2025
- had shares withheld for tax on 6,441 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 2,490 shares of Castle BiosciencesSEC Form 411 December 2025Common Stock · traded 10 December 2025 · filed 11 December 2025
- exercised options over 4,693 shares of Castle Biosciences (a derivative holding)SEC Form 424 November 2025Stock option (right to buy) · traded 20 November 2025 · filed 24 November 2025
- exercised options over 4,693 shares of Castle BiosciencesSEC Form 424 November 2025Common Stock · traded 20 November 2025 · filed 24 November 2025
- ▼ sold on the open market 4,693 shares of Castle BiosciencesSEC Form 424 November 2025Common Stock · traded 20 November 2025 · filed 24 November 2025
- exercised options over 500 shares of Castle Biosciences (a derivative holding)SEC Form 414 November 2025Stock option (right to buy) · traded 11 November 2025 · filed 14 November 2025
- exercised options over 200 shares of Castle Biosciences (a derivative holding)SEC Form 414 November 2025Stock option (right to buy) · traded 12 November 2025 · filed 14 November 2025
- exercised options over 500 shares of Castle BiosciencesSEC Form 414 November 2025Common Stock · traded 11 November 2025 · filed 14 November 2025
- ▼ sold on the open market 500 shares of Castle BiosciencesSEC Form 414 November 2025Common Stock · traded 11 November 2025 · filed 14 November 2025
- exercised options over 200 shares of Castle BiosciencesSEC Form 414 November 2025Common Stock · traded 12 November 2025 · filed 14 November 2025
- ▼ sold on the open market 200 shares of Castle BiosciencesSEC Form 414 November 2025Common Stock · traded 12 November 2025 · filed 14 November 2025
- ▼ sold on the open market 500 shares of Castle BiosciencesSEC Form 413 November 2025Common Stock · traded 11 November 2025 · filed 13 November 2025
- ▼ sold on the open market 200 shares of Castle BiosciencesSEC Form 413 November 2025Common Stock · traded 12 November 2025 · filed 13 November 2025
- exercised options over 10,640 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 10,640 shares of Castle BiosciencesSEC Form 412 August 2025Common Stock · traded 8 August 2025 · filed 12 August 2025
- had shares withheld for tax on 4,294 shares of Castle BiosciencesSEC Form 412 August 2025Common Stock · traded 8 August 2025 · filed 12 August 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 13,811 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 13,811 shares of Castle BiosciencesSEC Form 46 March 2025Common Stock · traded 4 March 2025 · filed 6 March 2025
- had shares withheld for tax on 5,573 shares of Castle BiosciencesSEC Form 46 March 2025Common Stock · traded 4 March 2025 · filed 6 March 2025
- ▼ sold on the open market 2,230 shares of Castle BiosciencesSEC Form 48 January 2025Common Stock · traded 6 January 2025 · filed 8 January 2025
- exercised options over 15,961 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 1,750 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 15,961 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 9 December 2024 · filed 11 December 2024
- had shares withheld for tax on 3,887 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 9 December 2024 · filed 11 December 2024
- exercised options over 1,750 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- had shares withheld for tax on 495 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 1,503 shares of Castle BiosciencesSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- exercised options over 3,507 shares of Castle Biosciences (a derivative holding)SEC Form 47 November 2024Stock option (right to buy) · traded 5 November 2024 · filed 7 November 2024
- exercised options over 3,507 shares of Castle BiosciencesSEC Form 47 November 2024Common Stock · traded 5 November 2024 · filed 7 November 2024
- ▼ sold on the open market 3,507 shares of Castle BiosciencesSEC Form 47 November 2024Common Stock · traded 5 November 2024 · filed 7 November 2024
- exercised options over 1,100 shares of Castle Biosciences (a derivative holding)SEC Form 45 November 2024Stock option (right to buy) · traded 1 November 2024 · filed 5 November 2024
- exercised options over 1,100 shares of Castle BiosciencesSEC Form 45 November 2024Common Stock · traded 1 November 2024 · filed 5 November 2024
- ▼ sold on the open market 3,100 shares of Castle BiosciencesSEC Form 45 November 2024Common Stock · traded 1 November 2024 · filed 5 November 2024
- was granted 10,641 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 10,641 shares of Castle BiosciencesSEC Form 413 August 2024Common Stock · traded 9 August 2024 · filed 13 August 2024
- had shares withheld for tax on 2,592 shares of Castle BiosciencesSEC Form 413 August 2024Common Stock · traded 9 August 2024 · filed 13 August 2024
- was granted 55,243 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 3,301 shares of Castle Biosciences (a derivative holding)SEC Form 44 January 2024Stock option (right to buy) · traded 2 January 2024 · filed 4 January 2024
- exercised options over 3,400 shares of Castle Biosciences (a derivative holding)SEC Form 44 January 2024Stock option (right to buy) · traded 2 January 2024 · filed 4 January 2024
- exercised options over 3,301 shares of Castle BiosciencesSEC Form 44 January 2024Common Stock · traded 2 January 2024 · filed 4 January 2024
- exercised options over 3,400 shares of Castle BiosciencesSEC Form 44 January 2024Common Stock · traded 2 January 2024 · filed 4 January 2024
- exercised options over 15,961 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 1,750 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 15,961 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 9 December 2023 · filed 12 December 2023
- had shares withheld for tax on 3,887 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 1,503 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- exercised options over 1,750 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- had shares withheld for tax on 427 shares of Castle BiosciencesSEC Form 412 December 2023Common Stock · traded 10 December 2023 · filed 12 December 2023
- exercised options over 6,173 shares of Castle Biosciences (a derivative holding)SEC Form 43 March 2023Stock option (right to buy) · traded 1 March 2023 · filed 3 March 2023
- exercised options over 6,173 shares of Castle BiosciencesSEC Form 43 March 2023Common Stock · traded 1 March 2023 · filed 3 March 2023
- was granted 63,844 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 1,750 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 1,750 shares of Castle BiosciencesSEC Form 413 December 2022Common Stock · traded 10 December 2022 · filed 13 December 2022
- had shares withheld for tax on 427 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 1,503 shares of Castle BiosciencesSEC Form 413 December 2022Common Stock · traded 10 December 2022 · filed 13 December 2022
- exercised options over 479 shares of Castle Biosciences (a derivative holding)SEC Form 414 November 2022Stock option (right to buy) · traded 10 November 2022 · filed 14 November 2022
- exercised options over 3,221 shares of Castle Biosciences (a derivative holding)SEC Form 414 November 2022Stock option (right to buy) · traded 10 November 2022 · filed 14 November 2022
- exercised options over 479 shares of Castle BiosciencesSEC Form 414 November 2022Common Stock · traded 10 November 2022 · filed 14 November 2022
- exercised options over 3,221 shares of Castle BiosciencesSEC Form 414 November 2022Common Stock · traded 10 November 2022 · filed 14 November 2022
- was granted 2,230 shares of Castle BiosciencesSEC Form 428 April 2022Common Stock · traded 26 April 2022 · filed 28 April 2022
- was granted 42,550 shares of CSTL (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 CSTL (a derivative holding)SEC Form 414 December 2021Restricted Stock Units · traded 10 December 2021 · filed 14 December 2021
- exercised options over 1,750 shares of CSTL (a derivative holding)SEC Form 414 December 2021Restricted Stock Units · traded 10 December 2021 · filed 14 December 2021
- exercised options over 1,750 shares of CSTLSEC Form 414 December 2021Common Stock · traded 10 December 2021 · filed 14 December 2021
- had shares withheld for tax on 427 shares of CSTLSEC Form 414 December 2021Common Stock · traded 10 December 2021 · filed 14 December 2021
- exercised options over 5,263 shares of Castle Biosciences (a derivative holding)SEC Form 421 June 2021Stock option (right to buy) · traded 17 June 2021 · filed 21 June 2021
- exercised options over 4,737 shares of Castle Biosciences (a derivative holding)SEC Form 421 June 2021Stock option (right to buy) · traded 17 June 2021 · filed 21 June 2021
- exercised options over 5,263 shares of Castle BiosciencesSEC Form 421 June 2021Common Stock · traded 17 June 2021 · filed 21 June 2021
- exercised options over 4,737 shares of Castle BiosciencesSEC Form 421 June 2021Common Stock · traded 17 June 2021 · filed 21 June 2021
- ▼ sold on the open market 10,000 shares of Castle BiosciencesSEC Form 421 June 2021Common Stock · traded 17 June 2021 · filed 21 June 2021
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.