Follow the people · Insider
Margaret A. Horn
Margaret A. Horn files insider transactions with the SEC as a chief operating officer of Revolution Medicines (RVMD). We hold 6 disclosed purchases and sales filed since 5 January 2006, 4 of them in the last 90 days.
- Files forRVMD
- Disclosed buys and sells6 in all, 4 in the last 90 days
- Last disclosure17 June 2026
Positions held
3 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 12 February 2020 — 17 June 2026Chief Operating Officer · Revolution Medicines (RVMD)118 Form 4 lines · source: SEC Form 4
- Filed 15 December 2022 — 12 June 2025Director · Sangamo Therapeutics (SGMO)8 Form 4 lines · source: SEC Form 4
- Filed 3 January 2006 — 2 January 2007SVP, General Counsel · Kosan Biosciences (KOSN)2 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 15,546 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 15 June 2026 · filed 17 June 2026
- exercised options over 44,854 shares of Revolution Medicines (a derivative holding)SEC Form 417 June 2026Stock Option (Right to Buy) · traded 15 June 2026 · filed 17 June 2026
- exercised options over 573 shares of Revolution Medicines (a derivative holding)SEC Form 417 June 2026Stock Option (Right to Buy) · traded 17 June 2026 · filed 17 June 2026
- exercised options over 3,302 shares of Revolution Medicines (a derivative holding)SEC Form 417 June 2026Stock Option (Right to Buy) · traded 17 June 2026 · filed 17 June 2026
- exercised options over 25,725 shares of Revolution Medicines (a derivative holding)SEC Form 417 June 2026Stock Option (Right to Buy) · traded 17 June 2026 · filed 17 June 2026
- exercised options over 44,854 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 15 June 2026 · filed 17 June 2026
- ▼ sold on the open market 60,400 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 15 June 2026 · filed 17 June 2026
- ▼ sold on the open market 3,575 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 16 June 2025 · filed 17 June 2026
- exercised options over 573 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 17 June 2026 · filed 17 June 2026
- exercised options over 3,302 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 17 June 2026 · filed 17 June 2026
- exercised options over 25,725 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 17 June 2026 · filed 17 June 2026
- ▼ sold on the open market 29,600 shares of Revolution MedicinesSEC Form 417 June 2026Common Stock · traded 17 June 2026 · filed 17 June 2026
- exercised options over 15,546 shares of Revolution Medicines (a derivative holding)SEC Form 417 June 2026Stock Option (Right to Buy) · traded 15 June 2026 · filed 17 June 2026
- exercised options over 1,094 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- exercised options over 1,094 shares of Revolution Medicines (a derivative holding)SEC Form 415 June 2026Stock Option (Right to Buy) · traded 11 June 2026 · filed 15 June 2026
- exercised options over 8,906 shares of Revolution Medicines (a derivative holding)SEC Form 415 June 2026Stock Option (Right to Buy) · traded 11 June 2026 · filed 15 June 2026
- exercised options over 8,906 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 1,315 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 885 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 700 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 500 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 1,800 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 4,600 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 200 shares of Revolution MedicinesSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- ▼ sold on the open market 4,583 shares of Revolution MedicinesSEC Form 419 March 2026Common Stock · traded 17 March 2026 · filed 19 March 2026
- ▼ sold on the open market 4,583 shares of Revolution MedicinesSEC Form 419 March 2026Common Stock · traded 17 March 2026 · filed 19 March 2026
- was granted 21,100 shares of Revolution MedicinesSEC Form 43 March 2026Common Stock · traded 1 March 2026 · filed 3 March 2026
- was granted 47,600 shares of Revolution Medicines (a derivative holding)SEC Form 43 March 2026Stock Option (Right to Buy) · traded 1 March 2026 · filed 3 March 2026
- was granted 47,600 shares of Revolution Medicines (a derivative holding)SEC Form 43 March 2026Stock Option (Right to Buy) · traded 1 March 2026 · filed 3 March 2026
- was granted 21,100 shares of Revolution MedicinesSEC Form 43 March 2026Common Stock · traded 1 March 2026 · filed 3 March 2026
- exercised options over 51,406 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- exercised options over 23,594 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 53,096 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- exercised options over 51,406 shares of Revolution Medicines (a derivative holding)SEC Form 49 January 2026Stock Option (Right to Buy) · traded 7 January 2026 · filed 9 January 2026
- exercised options over 23,594 shares of Revolution Medicines (a derivative holding)SEC Form 49 January 2026Stock Option (Right to Buy) · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 20,204 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 1,700 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- exercised options over 51,406 shares of Revolution Medicines (a derivative holding)SEC Form 49 January 2026Stock Option (Right to Buy) · traded 7 January 2026 · filed 9 January 2026
- exercised options over 23,594 shares of Revolution Medicines (a derivative holding)SEC Form 49 January 2026Stock Option (Right to Buy) · traded 7 January 2026 · filed 9 January 2026
- exercised options over 51,406 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- exercised options over 23,594 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 53,096 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 20,204 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 1,700 shares of Revolution MedicinesSEC Form 49 January 2026Common Stock · traded 7 January 2026 · filed 9 January 2026
- ▼ sold on the open market 4,847 shares of Revolution MedicinesSEC Form 418 December 2025Common Stock · traded 16 December 2025 · filed 18 December 2025
- ▼ sold on the open market 4,775 shares of Revolution MedicinesSEC Form 418 September 2025Common Stock · traded 16 September 2025 · filed 18 September 2025
- ▼ sold on the open market 3,510 shares of Revolution MedicinesSEC Form 418 June 2025Common Stock · traded 16 June 2025 · filed 18 June 2025
- was granted 50,000 shares of Sangamo Therapeutics (a derivative holding)SEC Form 416 June 2025Stock Option (Right to Buy) · traded 12 June 2025 · filed 16 June 2025
- was granted 25,000 shares of Sangamo TherapeuticsSEC Form 416 June 2025Common Stock · traded 12 June 2025 · filed 16 June 2025
- ▼ sold on the open market 3,058 shares of Revolution MedicinesSEC Form 419 March 2025Common Stock · traded 17 March 2025 · filed 19 March 2025
- was granted 100,100 shares of Revolution Medicines (a derivative holding)SEC Form 44 March 2025Stock Option (Right to Buy) · traded 1 March 2025 · filed 4 March 2025
- was granted 28,600 shares of Revolution MedicinesSEC Form 44 March 2025Common Stock · traded 1 March 2025 · filed 4 March 2025
- ▼ sold on the open market 4,329 shares of Revolution MedicinesSEC Form 418 December 2024Common Stock · traded 16 December 2024 · filed 18 December 2024
- exercised options over 44,631 shares of Revolution Medicines (a derivative holding)SEC Form 415 October 2024Stock Option (Right to Buy) · traded 11 October 2024 · filed 15 October 2024
- exercised options over 5,369 shares of Revolution Medicines (a derivative holding)SEC Form 415 October 2024Stock Option (Right to Buy) · traded 11 October 2024 · filed 15 October 2024
- exercised options over 44,631 shares of Revolution MedicinesSEC Form 415 October 2024Common Stock · traded 11 October 2024 · filed 15 October 2024
- exercised options over 5,369 shares of Revolution MedicinesSEC Form 415 October 2024Common Stock · traded 11 October 2024 · filed 15 October 2024
- ▼ sold on the open market 50,000 shares of Revolution MedicinesSEC Form 415 October 2024Common Stock · traded 11 October 2024 · filed 15 October 2024
- ▼ sold on the open market 4,331 shares of Revolution MedicinesSEC Form 418 September 2024Common Stock · traded 16 September 2024 · filed 18 September 2024
- ▼ sold on the open market 4,415 shares of Revolution MedicinesSEC Form 420 June 2024Common Stock · traded 17 June 2024 · filed 20 June 2024
- was granted 50,000 shares of Sangamo Therapeutics (a derivative holding)SEC Form 46 June 2024Stock Option (Right to Buy) · traded 4 June 2024 · filed 6 June 2024
- was granted 25,000 shares of Sangamo TherapeuticsSEC Form 46 June 2024Common Stock · traded 4 June 2024 · filed 6 June 2024
- ▼ sold on the open market 2,914 shares of Revolution MedicinesSEC Form 420 March 2024Common Stock · traded 18 March 2024 · filed 20 March 2024
- exercised options over 15,735 shares of Revolution Medicines (a derivative holding)SEC Form 413 March 2024Stock Option (Right to Buy) · traded 11 March 2024 · filed 13 March 2024
- exercised options over 7,936 shares of Revolution Medicines (a derivative holding)SEC Form 413 March 2024Stock Option (Right to Buy) · traded 12 March 2024 · filed 13 March 2024
- exercised options over 15,735 shares of Revolution MedicinesSEC Form 413 March 2024Common Stock · traded 11 March 2024 · filed 13 March 2024
- ▼ sold on the open market 15,735 shares of Revolution MedicinesSEC Form 413 March 2024Common Stock · traded 11 March 2024 · filed 13 March 2024
- exercised options over 7,936 shares of Revolution MedicinesSEC Form 413 March 2024Common Stock · traded 12 March 2024 · filed 13 March 2024
- ▼ sold on the open market 7,936 shares of Revolution MedicinesSEC Form 413 March 2024Common Stock · traded 12 March 2024 · filed 13 March 2024
- was granted 143,500 shares of Revolution Medicines (a derivative holding)SEC Form 45 March 2024Stock Option (Right to Buy) · traded 1 March 2024 · filed 5 March 2024
- was granted 41,000 shares of Revolution MedicinesSEC Form 45 March 2024Common Stock · traded 1 March 2024 · filed 5 March 2024
- exercised options over 5,000 shares of Revolution Medicines (a derivative holding)SEC Form 419 December 2023Stock Option (Right to Buy) · traded 15 December 2023 · filed 19 December 2023
- exercised options over 5,000 shares of Revolution MedicinesSEC Form 419 December 2023Common Stock · traded 15 December 2023 · filed 19 December 2023
- ▼ sold on the open market 5,000 shares of Revolution MedicinesSEC Form 419 December 2023Common Stock · traded 15 December 2023 · filed 19 December 2023
- ▼ sold on the open market 2,993 shares of Revolution MedicinesSEC Form 419 December 2023Common Stock · traded 18 December 2023 · filed 19 December 2023
- exercised options over 5,000 shares of Revolution Medicines (a derivative holding)SEC Form 48 December 2023Stock Option (Right to Buy) · traded 6 December 2023 · filed 8 December 2023
- exercised options over 5,000 shares of Revolution MedicinesSEC Form 48 December 2023Common Stock · traded 6 December 2023 · filed 8 December 2023
- ▼ sold on the open market 5,000 shares of Revolution MedicinesSEC Form 48 December 2023Common Stock · traded 6 December 2023 · filed 8 December 2023
- exercised options over 7,500 shares of Revolution Medicines (a derivative holding)SEC Form 425 October 2023Stock Option (Right to Buy) · traded 25 October 2023 · filed 25 October 2023
- exercised options over 7,500 shares of Revolution MedicinesSEC Form 425 October 2023Common Stock · traded 25 October 2023 · filed 25 October 2023
- exercised options over 25,000 shares of Revolution Medicines (a derivative holding)SEC Form 418 October 2023Stock Option (Right to Buy) · traded 16 October 2023 · filed 18 October 2023
- exercised options over 25,000 shares of Revolution MedicinesSEC Form 418 October 2023Common Stock · traded 16 October 2023 · filed 18 October 2023
- ▼ sold on the open market 100 shares of Revolution MedicinesSEC Form 418 October 2023Common Stock · traded 16 October 2023 · filed 18 October 2023
- ▼ sold on the open market 500 shares of Revolution MedicinesSEC Form 418 October 2023Common Stock · traded 16 October 2023 · filed 18 October 2023
- ▼ sold on the open market 800 shares of Revolution MedicinesSEC Form 418 October 2023Common Stock · traded 16 October 2023 · filed 18 October 2023
- ▼ sold on the open market 23,200 shares of Revolution MedicinesSEC Form 418 October 2023Common Stock · traded 16 October 2023 · filed 18 October 2023
- ▼ sold on the open market 400 shares of Revolution MedicinesSEC Form 418 October 2023Common Stock · traded 16 October 2023 · filed 18 October 2023
- exercised options over 5,000 shares of Revolution Medicines (a derivative holding)SEC Form 419 September 2023Stock Option (Right to Buy) · traded 15 September 2023 · filed 19 September 2023
- exercised options over 5,000 shares of Revolution MedicinesSEC Form 419 September 2023Common Stock · traded 15 September 2023 · filed 19 September 2023
- ▼ sold on the open market 5,000 shares of Revolution MedicinesSEC Form 419 September 2023Common Stock · traded 15 September 2023 · filed 19 September 2023
- ▼ sold on the open market 2,514 shares of Revolution MedicinesSEC Form 419 September 2023Common Stock · traded 18 September 2023 · filed 19 September 2023
- exercised options over 10,000 shares of Revolution Medicines (a derivative holding)SEC Form 41 September 2023Stock Option (Right to Buy) · traded 31 August 2023 · filed 1 September 2023
- exercised options over 10,000 shares of Revolution MedicinesSEC Form 41 September 2023Common Stock · traded 31 August 2023 · filed 1 September 2023
- ▼ sold on the open market 10,000 shares of Revolution MedicinesSEC Form 41 September 2023Common Stock · traded 31 August 2023 · filed 1 September 2023
- exercised options over 5,000 shares of Revolution Medicines (a derivative holding)SEC Form 417 August 2023Stock Option (Right to Buy) · traded 15 August 2023 · filed 17 August 2023
- exercised options over 5,000 shares of Revolution MedicinesSEC Form 417 August 2023Common Stock · traded 15 August 2023 · filed 17 August 2023
- ▼ sold on the open market 3,085 shares of Revolution MedicinesSEC Form 417 August 2023Common Stock · traded 15 August 2023 · filed 17 August 2023
- ▼ sold on the open market 1,915 shares of Revolution MedicinesSEC Form 417 August 2023Common Stock · traded 15 August 2023 · filed 17 August 2023
- ▼ sold on the open market 2,102 shares of Revolution MedicinesSEC Form 422 June 2023Common Stock · traded 20 June 2023 · filed 22 June 2023
- was granted 27,750 shares of Sangamo Therapeutics (a derivative holding)SEC Form 45 June 2023Stock Option (Right to Buy) · traded 1 June 2023 · filed 5 June 2023
- was granted 13,900 shares of Sangamo TherapeuticsSEC Form 45 June 2023Common Stock · traded 1 June 2023 · filed 5 June 2023
- ▼ sold on the open market 1,230 shares of Revolution MedicinesSEC Form 421 March 2023Common Stock · traded 17 March 2023 · filed 21 March 2023
- was granted 140,000 shares of Revolution Medicines (a derivative holding)SEC Form 43 March 2023Stock Option (Right to Buy) · traded 1 March 2023 · filed 3 March 2023
- was granted 40,000 shares of Revolution MedicinesSEC Form 43 March 2023Common Stock · traded 1 March 2023 · filed 3 March 2023
- ▼ sold on the open market 1,220 shares of Revolution MedicinesSEC Form 421 December 2022Common Stock · traded 19 December 2022 · filed 21 December 2022
- was granted 37,500 shares of Sangamo Therapeutics (a derivative holding)SEC Form 419 December 2022Stock Option (Right to Buy) · traded 15 December 2022 · filed 19 December 2022
- was granted 18,750 shares of Sangamo TherapeuticsSEC Form 419 December 2022Common Stock · traded 15 December 2022 · filed 19 December 2022
- ▼ sold on the open market 17,767 shares of Revolution MedicinesSEC Form 49 November 2022Common Stock · traded 7 November 2022 · filed 9 November 2022
- ▼ sold on the open market 17,767 shares of Revolution MedicinesSEC Form 42 November 2022Common Stock · traded 31 October 2022 · filed 2 November 2022
- ▼ sold on the open market 17,768 shares of Revolution MedicinesSEC Form 428 October 2022Common Stock · traded 26 October 2022 · filed 28 October 2022
- ▼ sold on the open market 1,267 shares of Revolution MedicinesSEC Form 421 September 2022Common Stock · traded 19 September 2022 · filed 21 September 2022
- ▼ sold on the open market 1,145 shares of Revolution MedicinesSEC Form 422 June 2022Common Stock · traded 17 June 2022 · filed 22 June 2022
- ▼ sold on the open market 321 shares of Revolution MedicinesSEC Form 421 March 2022Common Stock · traded 17 March 2022 · filed 21 March 2022
- was granted 135,800 shares of Revolution Medicines (a derivative holding)SEC Form 43 March 2022Stock Option (Right to Buy) · traded 1 March 2022 · filed 3 March 2022
- was granted 38,800 shares of Revolution MedicinesSEC Form 43 March 2022Common Stock · traded 1 March 2022 · filed 3 March 2022
- ▼ sold on the open market 491 shares of Revolution MedicinesSEC Form 421 December 2021Common Stock · traded 17 December 2021 · filed 21 December 2021
- ▼ sold on the open market 479 shares of Revolution MedicinesSEC Form 421 September 2021Common Stock · traded 17 September 2021 · filed 21 September 2021
- ▼ sold on the open market 464 shares of Revolution MedicinesSEC Form 422 June 2021Common Stock · traded 17 June 2021 · filed 22 June 2021
- was granted 52,500 shares of Revolution Medicines (a derivative holding)SEC Form 48 March 2021Stock Option (Right to Buy) · traded 4 March 2021 · filed 8 March 2021
- was granted 15,000 shares of Revolution MedicinesSEC Form 48 March 2021Common Stock · traded 4 March 2021 · filed 8 March 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.