Follow the people · Insider
S. Louise Phanstiel
S. Louise Phanstiel files insider transactions with the SEC as a director of Butterfly Network (BFLY). We hold 4 disclosed purchases and sales filed since 17 September 2009, 1 of them in the last 90 days.
- Files forBFLY
- Disclosed buys and sells4 in all, 1 in the last 90 days
- Last disclosure17 August 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 2021 — 14 August 2026Director · Butterfly Network (BFLY)11 Form 4 lines · source: SEC Form 4
- Filed 16 September 2009 — 4 June 2026Director · Myriad Genetics (MYGN)32 Form 4 lines · source: SEC Form 4
- Filed 18 September 2012 — 11 June 2018Other role · Verastem (VSTM)12 Form 4 lines · source: SEC Form 4
Everything they disclosed
55 entries, newest first — one per disclosure report, one per Form 4 line- ▲ bought on the open market 115,200 shares of Butterfly NetworkSEC Form 417 August 2026Class A Common Stock · traded 14 August 2026 · filed 17 August 2026
- was granted 25,447 shares of Butterfly NetworkSEC Form 422 June 2026Class A Common Stock · traded 22 June 2026 · filed 22 June 2026
- was granted 59,701 shares of Myriad GeneticsSEC Form 45 June 2026Common Stock · traded 4 June 2026 · filed 5 June 2026
- ▲ bought on the open market 6,100 shares of Myriad GeneticsSEC Form 427 February 2026Common Stock · traded 25 February 2026 · filed 27 February 2026
- ▲ bought on the open market 50,407 shares of Myriad GeneticsSEC Form 427 February 2026Common Stock · traded 26 February 2026 · filed 27 February 2026
- ▲ bought on the open market 48,000 shares of Myriad GeneticsSEC Form 427 February 2026Common Stock · traded 27 February 2026 · filed 27 February 2026
- ▲ bought on the open market 6,100 shares of Myriad GeneticsSEC Form 427 February 2026Common Stock · traded 25 February 2026 · filed 27 February 2026
- ▲ bought on the open market 50,407 shares of Myriad GeneticsSEC Form 427 February 2026Common Stock · traded 26 February 2026 · filed 27 February 2026
- ▲ bought on the open market 48,000 shares of Myriad GeneticsSEC Form 427 February 2026Common Stock · traded 27 February 2026 · filed 27 February 2026
- ▲ bought on the open market 185,261 shares of Butterfly NetworkSEC Form 417 December 2025Class A Common Stock · traded 15 December 2025 · filed 17 December 2025
- was granted 80,434 shares of Butterfly NetworkSEC Form 417 June 2025Class A Common Stock · traded 13 June 2025 · filed 17 June 2025
- was granted 49,796 shares of Myriad GeneticsSEC Form 46 June 2025Common Stock · traded 5 June 2025 · filed 6 June 2025
- ▼ sold on the open market 60,049 shares of Butterfly NetworkSEC Form 413 September 2024Class A Common Stock · traded 13 September 2024 · filed 13 September 2024
- was granted 157,894 shares of Butterfly NetworkSEC Form 412 June 2024Class A Common Stock · traded 10 June 2024 · filed 12 June 2024
- was granted 15,695 shares of Myriad GeneticsSEC Form 47 June 2024Common Stock · traded 6 June 2024 · filed 7 June 2024
- was granted 65,789 shares of Butterfly NetworkSEC Form 422 June 2023Class A Common Stock · traded 20 June 2023 · filed 22 June 2023
- was granted 15,151 shares of Myriad GeneticsSEC Form 42 June 2023Common Stock · traded 1 June 2023 · filed 2 June 2023
- was granted 48,231 shares of Butterfly NetworkSEC Form 422 June 2022Class A Common Stock · traded 17 June 2022 · filed 22 June 2022
- was granted 17,275 shares of Myriad GeneticsSEC Form 43 June 2022Common Stock · traded 2 June 2022 · filed 3 June 2022
- exercised options over 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 46 August 2021Non-Qualified Stock Option (right to buy) · traded 5 August 2021 · filed 6 August 2021
- exercised options over 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 46 August 2021Non-Qualified Stock Option (right to buy) · traded 5 August 2021 · filed 6 August 2021
- exercised options over 30,000 shares of Myriad GeneticsSEC Form 46 August 2021Common Stock · traded 5 August 2021 · filed 6 August 2021
- ▼ sold on the open market 47,881 shares of Myriad GeneticsSEC Form 46 August 2021Common Stock · traded 5 August 2021 · filed 6 August 2021
- exercised options over 30,000 shares of Myriad GeneticsSEC Form 46 August 2021Common Stock · traded 5 August 2021 · filed 6 August 2021
- was granted 21,645 shares of Butterfly Network (a derivative holding)SEC Form 42 July 2021Stock Option (Right to Buy) · traded 1 July 2021 · filed 2 July 2021
- was granted 12,848 shares of Myriad GeneticsSEC Form 44 June 2021Common Stock · traded 3 June 2021 · filed 4 June 2021
- was granted 60,049 shares of Butterfly NetworkSEC Form 416 February 2021Class A Common Stock · traded 12 February 2021 · filed 16 February 2021
- was granted 13,157 shares of Butterfly NetworkSEC Form 416 February 2021Class A Common Stock · traded 16 February 2021 · filed 16 February 2021
- was granted 15,889 shares of Myriad GeneticsSEC Form 47 December 2020Common Stock · traded 4 December 2020 · filed 7 December 2020
- ▲ bought on the open market 15,000 shares of Myriad GeneticsSEC Form 412 November 2020Common Stock · traded 11 November 2020 · filed 12 November 2020
- was granted 11,687 shares of Myriad GeneticsSEC Form 46 December 2019Common Stock · traded 5 December 2019 · filed 6 December 2019
- was granted 25,000 shares of Verastem (a derivative holding)SEC Form 413 February 2019Stock Option (Right to Buy) · traded 11 June 2018 · filed 13 February 2019
- was granted 9,360 shares of Myriad GeneticsSEC Form 430 November 2018Common Stock · traded 29 November 2018 · filed 30 November 2018
- was granted 7,219 shares of Myriad GeneticsSEC Form 430 November 2017Common Stock · traded 30 November 2017 · filed 30 November 2017
- was granted 25,000 shares of Verastem (a derivative holding)SEC Form 415 June 2017Stock Option (Right to Buy) · traded 13 June 2017 · filed 15 June 2017
- was granted 15,024 shares of Myriad GeneticsSEC Form 41 December 2016Common Stock · traded 1 December 2016 · filed 1 December 2016
- was granted 25,000 shares of Verastem (a derivative holding)SEC Form 416 June 2016Stock Option (Right to Buy) · traded 14 June 2016 · filed 16 June 2016
- ▼ sold on the open market 5,000 shares of Myriad GeneticsSEC Form 49 December 2015Common Stock · traded 8 December 2015 · filed 9 December 2015
- was granted 7,500 shares of Myriad GeneticsSEC Form 47 December 2015Common Stock · traded 3 December 2015 · filed 7 December 2015
- gave away 10,000 shares of Myriad GeneticsSEC Form 47 December 2015Common Stock · traded 4 December 2015 · filed 7 December 2015
- was granted 17,969 shares of Verastem (a derivative holding)SEC Form 416 June 2015Stock Option (Right to Buy) · traded 12 June 2015 · filed 16 June 2015
- ▲ bought on the open market 10,000 shares of VerastemSEC Form 431 December 2014Common Stock · traded 29 December 2014 · filed 31 December 2014
- was granted 10,000 shares of Myriad GeneticsSEC Form 44 December 2014Common Stock · traded 4 December 2014 · filed 4 December 2014
- was granted 25,000 shares of Verastem (a derivative holding)SEC Form 411 June 2014Stock Option (Right to Buy) · traded 10 June 2014 · filed 11 June 2014
- was granted 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 46 December 2013Non-Qualified Stock Option (right to buy) · traded 5 December 2013 · filed 6 December 2013
- ▲ bought on the open market 4,500 shares of VerastemSEC Form 413 June 2013Common Stock · traded 12 June 2013 · filed 13 June 2013
- ▲ bought on the open market 4,000 shares of VerastemSEC Form 412 June 2013Common Stock · traded 10 June 2013 · filed 12 June 2013
- ▲ bought on the open market 8,000 shares of VerastemSEC Form 412 June 2013Common Stock · traded 11 June 2013 · filed 12 June 2013
- was granted 12,500 shares of Verastem (a derivative holding)SEC Form 46 June 2013Stock Option (Right to Buy) · traded 4 June 2013 · filed 6 June 2013
- was granted 8,870 shares of Verastem (a derivative holding)SEC Form 46 June 2013Stock Option (Right to Buy) · traded 4 June 2013 · filed 6 June 2013
- was granted 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 45 December 2012Non-Qualified Stock Option (right to buy) · traded 5 December 2012 · filed 5 December 2012
- was granted 25,000 shares of Verastem (a derivative holding)SEC Form 420 September 2012Stock Option (Right to Buy) · traded 18 September 2012 · filed 20 September 2012
- was granted 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 42 December 2011Non-Qualified Stock Option (right to buy) · traded 2 December 2011 · filed 2 December 2011
- was granted 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 43 December 2010Non-Qualified Stock Option (right to buy) · traded 3 December 2010 · filed 3 December 2010
- was granted 30,000 shares of Myriad Genetics (a derivative holding)SEC Form 417 September 2009Non-Qualified Stock Option (right to buy) · traded 16 September 2009 · filed 17 September 2009
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.