S. Louise Phanstiel

CIK: 0001471518

Transaction Breakdown

Open Market Buys (P)5 (50.0%)

High conviction signal

Open Market Sales (S)1 (10.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

BFLY

Butterfly Network, Inc.

Director

MYGN

MYRIAD GENETICS INC

Director

Discretionary Trading P&L

Holdings

Transaction History (10 total)

BFLY
Butterfly Network, Inc.
Aug 14, 2026
Purchase(P)
Indirect
115.2K shares at avg. $8.68$1000K
BFLY
Butterfly Network, Inc.
Jun 22, 2026
Award(A)
Direct
25.4K shares-
MYGN
MYRIAD GENETICS INC
Jun 4, 2026
Award(A)
Direct
59.7K shares-
MYGN
MYRIAD GENETICS INC
Feb 27, 2026
Purchase(P)
Direct
48K shares at avg. $4.66$224K
MYGN
MYRIAD GENETICS INC
Feb 26, 2026
Purchase(P)
Direct
50.4K shares at avg. $4.80$242K
MYGN
MYRIAD GENETICS INC
Feb 25, 2026
Purchase(P)
Direct
6.1K shares at avg. $4.74$29K
BFLY
Butterfly Network, Inc.
Dec 15, 2025
Purchase(P)
Indirect
185.3K shares at avg. $3.08$571K
BFLY
Butterfly Network, Inc.
Jun 13, 2025
Award(A)
Direct
80.4K shares-
MYGN
MYRIAD GENETICS INC
Jun 5, 2025
Award(A)
Direct
49.8K shares-
BFLY
Butterfly Network, Inc.
Sep 13, 2024
Sale(S)
Indirect
60K shares at avg. $1.96$118K

		Type	Shares	Price		Ownership
Aug 14, 2026	BFLY Butterfly Network, Inc.	Purchase(P)	115,200	$8.68	$999,510	Indirect
Jun 22, 2026	BFLY Butterfly Network, Inc.	Award(A)	25,447	-	$0	Direct
Jun 4, 2026	MYGN MYRIAD GENETICS INC	Award(A)	59,701	-	$0	Direct
Feb 27, 2026	MYGN MYRIAD GENETICS INC	Purchase(P)	48,000	$4.66	$223,728	Direct
Feb 26, 2026	MYGN MYRIAD GENETICS INC	Purchase(P)	50,407	$4.80	$242,105	Direct
Feb 25, 2026	MYGN MYRIAD GENETICS INC	Purchase(P)	6,100	$4.74	$28,890	Direct
Dec 15, 2025	BFLY Butterfly Network, Inc.	Purchase(P)	185,261	$3.08	$571,160	Indirect
Jun 13, 2025	BFLY Butterfly Network, Inc.	Award(A)	80,434	-	-	Direct
Jun 5, 2025	MYGN MYRIAD GENETICS INC	Award(A)	49,796	-	-	Direct
Sep 13, 2024	BFLY Butterfly Network, Inc.	Sale(S)	60,049	$1.96	$117,792	Indirect

1-10 of 10 transactions

About Phanstiel S. Louise

Phanstiel S. Louise (SEC CIK 0001471518) files insider reports with the SEC as Director of Butterfly Network, Inc. (BFLY) and Director of MYRIAD GENETICS INC (MYGN).

Signal8 holds 8 ownership filings by Phanstiel S. Louise, all Form 4s, filed between Sep 13, 2024 and Aug 17, 2026. Those filings report 10 transactions, from Sep 13, 2024 to Aug 14, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Phanstiel S. Louise's filings is in BURLINGTON, MA.

Recent filings by Phanstiel S. Louise

Aug 14, 2026: Open-market purchase of BFLY shares (Form 4, code P).
Jun 22, 2026: Grant or award of BFLY shares (Form 4, code A).
Jun 4, 2026: Grant or award of MYGN shares (Form 4, code A).
Feb 27, 2026: Open-market purchase of MYGN shares (Form 4, code P).
Feb 26, 2026: Open-market purchase of MYGN shares (Form 4, code P).

Other insiders filing for Butterfly Network, Inc. (BFLY)

NOONEN MICHAEL, Director
DEVIVO JOSEPH, President & CEO
Carlson Megan, CAO and SVP, Finance
Cashman Steve, Chief Business Officer
Caezza Nicholas, Deputy General Counsel
ROBBINS LARRY, Director

How to read Form 4 transaction codes