Phanstiel S. Louise

Director at MYRIAD GENETICS INC · on record since Sep 17, 2009
Director at Verastem, Inc. · on record since Sep 20, 2012
Former Director at Verastem, Inc. · on record since Feb 13, 2019
Director at Butterfly Network, Inc. · on record since Feb 16, 2021

Insider trading activity of Phanstiel S. Louise

Transactions on record: 52; since Sep 17, 2009

Open-market buys: 10; $2.6M

Open-market sells: 3; $2M

Companies traded: 3; last filing Aug 17, 2026

Figures computed from official regulatory filings — .

Companies where Phanstiel S. Louise has traded

Butterfly Network, Inc.11 tx · $1.7M · Aug 17, 2026
MYRIAD GENETICS INC29 tx · $4M · Jun 5, 2026
Verastem, Inc.12 tx · $240.2K · Feb 13, 2019

Track record of Phanstiel S. Louise

Statistical track record

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Open-market buys: 10

Last buy: Aug 14, 2026

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Transaction history of Phanstiel S. Louise

Co-insiders of Phanstiel S. Louise

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Butterfly Network, Inc.Listing on record	Aug 17, 2026	Buy	115,200	8.68 USD	$999.5K	conv 62Unusual size	SEC
Butterfly Network, Inc.Listing on record	Jun 22, 2026	Award	25,447	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 5, 2026	Award	59,701	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Feb 27, 2026	Buy	48,000	4.66 USD	$223.7K	conv 41	SEC
MYRIAD GENETICS INCListing on record	Feb 27, 2026	Buy	6,100	4.74 USD	$28.9K	conv 36	SEC
MYRIAD GENETICS INCListing on record	Feb 27, 2026	Buy	50,407	4.80 USD	$242K	conv 44	SEC
Butterfly Network, Inc.Listing on record	Dec 17, 2025	Buy	185,261	3.08 USD	$570.6K	conv 73Unusual sizeFirst in 12mo	SEC
Butterfly Network, Inc.Listing on record	Jun 17, 2025	Award	80,434	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 6, 2025	Award	49,796	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Sep 13, 2024	Sell	-60,049	1.96 USD	$117.7K		SEC
Butterfly Network, Inc.Listing on record	Jun 12, 2024	Award	157,894	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 7, 2024	Award	15,695	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Jun 22, 2023	Award	65,789	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 2, 2023	Award	15,151	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Jun 22, 2022	Award	48,231	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 3, 2022	Award	17,275	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	ExerciseD (derivative)	-30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	Sell	-47,881	35.04 USD	$1.7M		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	ExerciseD (derivative)	-30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	Exercise	30,000	21.29 USD	$638.7K		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	Exercise	30,000	25.39 USD	$761.7K		SEC
Butterfly Network, Inc.Listing on record	Jul 2, 2021	AwardD (derivative)	21,645	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 4, 2021	Award	12,848	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Feb 16, 2021	Award	60,049	—	n/a (No price was disclosed in the filing)		SEC
Butterfly Network, Inc.Listing on record	Feb 16, 2021	Award	13,157	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Butterfly Network, Inc.Listing on record	Aug 17, 2026	Buy	115,200	8.68 USD	$999.5K	conv 62Unusual size	SEC
Butterfly Network, Inc.Listing on record	Jun 22, 2026	Award	25,447	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 5, 2026	Award	59,701	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Feb 27, 2026	Buy	48,000	4.66 USD	$223.7K	conv 41	SEC
MYRIAD GENETICS INCListing on record	Feb 27, 2026	Buy	6,100	4.74 USD	$28.9K	conv 36	SEC
MYRIAD GENETICS INCListing on record	Feb 27, 2026	Buy	50,407	4.80 USD	$242K	conv 44	SEC
Butterfly Network, Inc.Listing on record	Dec 17, 2025	Buy	185,261	3.08 USD	$570.6K	conv 73Unusual sizeFirst in 12mo	SEC
Butterfly Network, Inc.Listing on record	Jun 17, 2025	Award	80,434	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 6, 2025	Award	49,796	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Sep 13, 2024	Sell	-60,049	1.96 USD	$117.7K		SEC
Butterfly Network, Inc.Listing on record	Jun 12, 2024	Award	157,894	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 7, 2024	Award	15,695	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Jun 22, 2023	Award	65,789	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 2, 2023	Award	15,151	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Jun 22, 2022	Award	48,231	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 3, 2022	Award	17,275	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	ExerciseD (derivative)	-30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	Sell	-47,881	35.04 USD	$1.7M		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	ExerciseD (derivative)	-30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	Exercise	30,000	21.29 USD	$638.7K		SEC
MYRIAD GENETICS INCListing on record	Aug 6, 2021	Exercise	30,000	25.39 USD	$761.7K		SEC
Butterfly Network, Inc.Listing on record	Jul 2, 2021	AwardD (derivative)	21,645	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MYRIAD GENETICS INCListing on record	Jun 4, 2021	Award	12,848	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Butterfly Network, Inc.Listing on record	Feb 16, 2021	Award	60,049	—	n/a (No price was disclosed in the filing)		SEC
Butterfly Network, Inc.Listing on record	Feb 16, 2021	Award	13,157	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC